MP Police Constable Quiz | एमपी पुलिस कांस्टेबल क्विज - 50 MCQs (Complete Set)
Complete 50 MCQs based on latest patterns. GK (1-15), Reasoning (16-25), Maths (26-35), Science (36-50). Time: 50 minutes. Bilingual where possible.
नवीनतम पैटर्न पर आधारित पूर्ण 50 MCQs। समय: 50 मिनट।
Time Remaining: 50:00 | शेष समय: 50:00
1. Who among the following leaders was associated with Azad Hind Fauz as its founder? / निम्नलिखित में से किस नेता का अज़ाद हिंद फौज के संस्थापक के रूप में संबंध था?
Answer: D / उत्तर: D
Explanation: Azad Hind Fauj existed under Captain Mohan Singh and Subhash Chandra Bose in two different phases. Subhash Chandra Bose disagreed with nonviolence and aimed to fight the British. Ras Bihari Bose, an Indian revolutionary, fled to Japan in 1915 after plotting the assassination of Lord Hardinge. He received the Order of the Rising Sun from Japan. Subhash Chandra Bose took control of the Indian Independence League in Japan in 1942, which became the Indian National Army or Azad Hind Fauj. / व्याख्या: अज़ाद हिंद फौज कैप्टन मोहन सिंह और सुभाष चंद्र बोस के अधीन दो चरणों में अस्तित्व में थी।
Explanation: Azad Hind Fauj existed under Captain Mohan Singh and Subhash Chandra Bose in two different phases. Subhash Chandra Bose disagreed with nonviolence and aimed to fight the British. Ras Bihari Bose, an Indian revolutionary, fled to Japan in 1915 after plotting the assassination of Lord Hardinge. He received the Order of the Rising Sun from Japan. Subhash Chandra Bose took control of the Indian Independence League in Japan in 1942, which became the Indian National Army or Azad Hind Fauj. / व्याख्या: अज़ाद हिंद फौज कैप्टन मोहन सिंह और सुभाष चंद्र बोस के अधीन दो चरणों में अस्तित्व में थी।
2. In which of the following years Queen Victoria assumed the title of Kaiser-i-Hind (the Empress of India)? / किस वर्ष में क्वीन विक्टोरिया ने कैसर-ए-हिंद का खिताब ग्रहण किया?
Answer: C / उत्तर: C
Explanation: On January 1, 1877, at Coronation Park in Delhi, Queen Victoria assumed the title Kaiser-e-Hind, Empress of India, given by Viceroy Lord Lytton. This was enabled by the Royal Titles Act passed in 1876 in the British Parliament. / व्याख्या: 1 जनवरी 1877 को दिल्ली के कोरेशन पार्क में क्वीन विक्टोरिया ने कैसर-ए-हिंद खिताब ग्रहण किया।
Explanation: On January 1, 1877, at Coronation Park in Delhi, Queen Victoria assumed the title Kaiser-e-Hind, Empress of India, given by Viceroy Lord Lytton. This was enabled by the Royal Titles Act passed in 1876 in the British Parliament. / व्याख्या: 1 जनवरी 1877 को दिल्ली के कोरेशन पार्क में क्वीन विक्टोरिया ने कैसर-ए-हिंद खिताब ग्रहण किया।
3. Who built the Moti Masjid in Red Fort at Delhi? / लाल किले में मोती मस्जिद किसने बनवाई?
Answer: A / उत्तर: A
Explanation: Moti Masjid (Pearl Mosque) was built by Aurangzeb in 1659-60 using white marble in the Red Fort Complex in New Delhi. Note: Moti Masjid of Agra was built by Shah Jahan. / व्याख्या: मोती मस्जिद औरंगजेब द्वारा 1659-60 में सफेद संगमरमर से बनाई गई।
Explanation: Moti Masjid (Pearl Mosque) was built by Aurangzeb in 1659-60 using white marble in the Red Fort Complex in New Delhi. Note: Moti Masjid of Agra was built by Shah Jahan. / व्याख्या: मोती मस्जिद औरंगजेब द्वारा 1659-60 में सफेद संगमरमर से बनाई गई।
4. The river Sutlej, on which the Bhakra Dam has been built, originates from / भाखड़ा बांध जिस नदी पर बना है, वह कहाँ से निकलती है?
Answer: C / उत्तर: C
Explanation: The Sutlej River originates from Rakas Lake in Tibet. It is the longest of the five rivers of Punjab and the easternmost tributary of the Indus River, also known as Satadree. The Bhakra Dam on the Sutlej provides irrigation to Punjab, Rajasthan, and Haryana. / व्याख्या: सतलुज नदी तिब्बत की राकास झील से निकलती है।
Explanation: The Sutlej River originates from Rakas Lake in Tibet. It is the longest of the five rivers of Punjab and the easternmost tributary of the Indus River, also known as Satadree. The Bhakra Dam on the Sutlej provides irrigation to Punjab, Rajasthan, and Haryana. / व्याख्या: सतलुज नदी तिब्बत की राकास झील से निकलती है।
5. The President of India is / भारत का राष्ट्रपति है
Answer: A / उत्तर: A
Explanation: The President of India is the head of the State as per Article 52 and head of all armed forces. Article 53 states the President is the head of the Union Executive. The President is the first citizen of India, symbolizing unity and integrity. / व्याख्या: अनुच्छेद 52 के अनुसार राज्य का प्रमुख।
Explanation: The President of India is the head of the State as per Article 52 and head of all armed forces. Article 53 states the President is the head of the Union Executive. The President is the first citizen of India, symbolizing unity and integrity. / व्याख्या: अनुच्छेद 52 के अनुसार राज्य का प्रमुख।
6. Who is the first woman Indian Police Services officer? / पहली महिला IPS अधिकारी कौन हैं?
Answer: A / उत्तर: A
Explanation: Kiran Bedi is the first woman Indian Police Service officer, joining in 1972 and retiring in 2007 after 35 years. She served as the 24th Lieutenant Governor of Puducherry from 2016 to 2021 and received the United Nations Medal in 2004 and Ramon Magsaysay Award in 1994. / व्याख्या: किरण बेदी पहली महिला IPS अधिकारी, 1972 में शामिल हुईं।
Explanation: Kiran Bedi is the first woman Indian Police Service officer, joining in 1972 and retiring in 2007 after 35 years. She served as the 24th Lieutenant Governor of Puducherry from 2016 to 2021 and received the United Nations Medal in 2004 and Ramon Magsaysay Award in 1994. / व्याख्या: किरण बेदी पहली महिला IPS अधिकारी, 1972 में शामिल हुईं।
7. In which year did India sign Kyoto Protocol? / भारत ने क्योटो प्रोटोकॉल कब हस्ताक्षर किया?
Answer: D / उत्तर: D
Explanation: India signed the Kyoto Protocol on August 26, 2002. The protocol, adopted in Kyoto in 1997, entered into force in 2005. It aims to reduce greenhouse gas emissions, with mechanisms like the Clean Development Mechanism allowing emission-reduction projects in developing countries. / व्याख्या: 26 अगस्त 2002 को हस्ताक्षर, 1997 में अपनाया गया।
Explanation: India signed the Kyoto Protocol on August 26, 2002. The protocol, adopted in Kyoto in 1997, entered into force in 2005. It aims to reduce greenhouse gas emissions, with mechanisms like the Clean Development Mechanism allowing emission-reduction projects in developing countries. / व्याख्या: 26 अगस्त 2002 को हस्ताक्षर, 1997 में अपनाया गया।
8. Which one of the following is in the concurrent list in the Constitution of India? / भारतीय संविधान की समवर्ती सूची में निम्नलिखित में से कौन सा है?
Answer: A / उत्तर: A
Explanation: Population control and family planning was added to the Concurrent List (Entry 20-A, List III) through the 42nd Constitutional Amendment in 1976. The Concurrent List allows both Central and State governments to legislate on subjects like education, criminal law, and forests. / व्याख्या: 42वें संशोधन 1976 द्वारा जोड़ा गया।
Explanation: Population control and family planning was added to the Concurrent List (Entry 20-A, List III) through the 42nd Constitutional Amendment in 1976. The Concurrent List allows both Central and State governments to legislate on subjects like education, criminal law, and forests. / व्याख्या: 42वें संशोधन 1976 द्वारा जोड़ा गया।
9. Name the religious movement started by Emperor Akbar in the late 16th century / 16वीं शताब्दी के अंत में सम्राट अकबर द्वारा शुरू किया गया धार्मिक आंदोलन का नाम बताएं
Answer: C / उत्तर: C
Explanation: Din-i-Ilahi, meaning "the religion of God," was introduced by Mughal Emperor Akbar in 1582 CE. It aimed to combine elements of Islam, Hinduism, Christianity, Zoroastrianism, and Jainism into one faith. / व्याख्या: 'ईश्वर का धर्म', 1582 ई. में शुरू, विभिन्न धर्मों का संयोजन।
Explanation: Din-i-Ilahi, meaning "the religion of God," was introduced by Mughal Emperor Akbar in 1582 CE. It aimed to combine elements of Islam, Hinduism, Christianity, Zoroastrianism, and Jainism into one faith. / व्याख्या: 'ईश्वर का धर्म', 1582 ई. में शुरू, विभिन्न धर्मों का संयोजन।
10. National animal of India is___ / भारत का राष्ट्रीय पशु ___ है
Answer: B / उत्तर: B
Explanation: The Royal Bengal Tiger (Panthera Tigris) is India's National Animal, conferred in April 1973 due to its elegance, strength, agility, and power. Until 1972, the Lion held this status. / व्याख्या: रॉयल बंगाल टाइगर, अप्रैल 1973 में घोषित।
Explanation: The Royal Bengal Tiger (Panthera Tigris) is India's National Animal, conferred in April 1973 due to its elegance, strength, agility, and power. Until 1972, the Lion held this status. / व्याख्या: रॉयल बंगाल टाइगर, अप्रैल 1973 में घोषित।
11. Who founded Santiniketan / शांतिनिकेतन की स्थापना किसने की
Answer: B / उत्तर: B
Explanation: Rabindranath Tagore established his school at Santiniketan on December 22, 1901, originally named Brahmacharya Ashram. The area was developed earlier by Maharshi Devendranath Tagore in the 1860s. / व्याख्या: 22 दिसंबर 1901 को स्थापित, ब्रह्मचर्य आश्रम के नाम से।
Explanation: Rabindranath Tagore established his school at Santiniketan on December 22, 1901, originally named Brahmacharya Ashram. The area was developed earlier by Maharshi Devendranath Tagore in the 1860s. / व्याख्या: 22 दिसंबर 1901 को स्थापित, ब्रह्मचर्य आश्रम के नाम से।
12. On which river is the Hirakud Dam built? / हिराकुड बांध किस नदी पर बना है?
Answer: B / उत्तर: B
Explanation: The Hirakud Dam, a composite structure of earth, concrete, and masonry, is built across the Mahanadi River near Sambalpur, Odisha. It is the longest major earthen dam in India and began operations in 1957, supporting irrigation in the region. / व्याख्या: महानदी पर, ओडिशा में, 1957 में कार्य शुरू।
Explanation: The Hirakud Dam, a composite structure of earth, concrete, and masonry, is built across the Mahanadi River near Sambalpur, Odisha. It is the longest major earthen dam in India and began operations in 1957, supporting irrigation in the region. / व्याख्या: महानदी पर, ओडिशा में, 1957 में कार्य शुरू।
13. Who is the author of the book, 'Ghulam Giri'? / 'घुलाम गिरी' के लेखक कौन हैं?
Answer: C / उत्तर: C
Explanation: Jyotirao Phule wrote 'Ghulam Giri,' thanking Christian missionaries and British colonists for raising awareness among lower castes about their human rights. He was a social reformer who founded Satyashodak Samaj in 1873 to fight the caste system. / व्याख्या: ज्योतिराव फुले, निचली जातियों के अधिकारों पर।
Explanation: Jyotirao Phule wrote 'Ghulam Giri,' thanking Christian missionaries and British colonists for raising awareness among lower castes about their human rights. He was a social reformer who founded Satyashodak Samaj in 1873 to fight the caste system. / व्याख्या: ज्योतिराव फुले, निचली जातियों के अधिकारों पर।
14. Pagara is a dam located in / पगारा बांध कहाँ स्थित है
Answer: A / उत्तर: A
Explanation: Pagara Dam is located 13 km from Jaura town in Morena District, Madhya Pradesh, on the Aasan River. It is a masonry dam constructed in 1931. / व्याख्या: मुरैना जिले में, आसन नदी पर, 1931 में निर्मित।
Explanation: Pagara Dam is located 13 km from Jaura town in Morena District, Madhya Pradesh, on the Aasan River. It is a masonry dam constructed in 1931. / व्याख्या: मुरैना जिले में, आसन नदी पर, 1931 में निर्मित।
15. In which year did India not fight a war with Pakistan? / भारत ने पाकिस्तान से युद्ध न किया किस वर्ष?
Answer: A / उत्तर: A
Explanation: India fought wars with Pakistan in 1947 (First Kashmir War), 1965 (Second Kashmir War), and 1971 (Bangladesh Liberation War). No war occurred in 1950. / व्याख्या: युद्ध 1947, 1965, 1971 में हुए।
Explanation: India fought wars with Pakistan in 1947 (First Kashmir War), 1965 (Second Kashmir War), and 1971 (Bangladesh Liberation War). No war occurred in 1950. / व्याख्या: युद्ध 1947, 1965, 1971 में हुए।
16. Select the option that is related to the third term in the same way as the second term is related to the first term. GWR : HZW :: CJO : ? / तीसरे पद से संबंधित विकल्प चुनें जैसे पहला पद दूसरे से संबंधित है।
Answer: B / उत्तर: B
Explanation: The logic involves shifting each letter in "GWR" forward by one position in the alphabet to get "HZW". Similarly, shifting each letter in "CJO" forward by one position gives "DMT". / व्याख्या: प्रत्येक अक्षर को एक आगे शिफ्ट।
Explanation: The logic involves shifting each letter in "GWR" forward by one position in the alphabet to get "HZW". Similarly, shifting each letter in "CJO" forward by one position gives "DMT". / व्याख्या: प्रत्येक अक्षर को एक आगे शिफ्ट।
17. What is my father’s wife’s father-in-law's only son to me? / मेरे पिता की पत्नी के ससुर का इकलौता पुत्र मेरे लिए क्या है?
Answer: A / उत्तर: A
Explanation: My father's wife is my mother. Her father-in-law is my grandfather. His only son is my father. Therefore, the answer is "Father". / व्याख्या: पिता की पत्नी माँ, ससुर दादा, उनका पुत्र पिता।
Explanation: My father's wife is my mother. Her father-in-law is my grandfather. His only son is my father. Therefore, the answer is "Father". / व्याख्या: पिता की पत्नी माँ, ससुर दादा, उनका पुत्र पिता।
18. In the given question, relationship between different elements is shown in the statement. The statement is followed by two conclusions. Study the conclusions based on the given statements and select the correct answer. Statements: U > H = G ≥ N; E < N > W ≥ O Conclusion: I. G > E II. H > N / कथन: U > H = G ≥ N; E < N > W ≥ O निष्कर्ष: I. G > E II. H > N
Answer: B / उत्तर: B
Explanation: From the statements, G ≥ N > E, so G > E is true. However, H = G ≥ N does not guarantee H > N, so conclusion II is false. / व्याख्या: G ≥ N > E से G > E सत्य; H = G ≥ N > N नहीं।
Explanation: From the statements, G ≥ N > E, so G > E is true. However, H = G ≥ N does not guarantee H > N, so conclusion II is false. / व्याख्या: G ≥ N > E से G > E सत्य; H = G ≥ N > N नहीं।
19. In the sequence shown below, which figure comes next? / श्रृंखला में अगला चित्र कौन सा है?
Answer: B / उत्तर: B
Explanation: The pattern involves alternating between the mirror image of a number and its successor. After 6, the next number should be the mirror image of 7. / व्याख्या: संख्या का दर्पण प्रतिबिंब और उत्तराधिकारी वैकल्पिक।
Explanation: The pattern involves alternating between the mirror image of a number and its successor. After 6, the next number should be the mirror image of 7. / व्याख्या: संख्या का दर्पण प्रतिबिंब और उत्तराधिकारी वैकल्पिक।
20. Select the option that is true about the Statements and Conclusions given: Statements: Some pastes are creams Lime is a paste Conclusions: I. Some creams are pastes II. Some creams are not pastes / कथन: कुछ पेस्ट क्रीम हैं, लाइम पेस्ट है। निष्कर्ष: I. कुछ क्रीम पेस्ट हैं II. कुछ क्रीम पेस्ट नहीं हैं
Answer: C / उत्तर: C
Explanation: Since some pastes are creams and lime is a paste, it follows that some creams are pastes. However, it is not definite that some creams are not pastes. / व्याख्या: कुछ पेस्ट क्रीम, लाइम पेस्ट से कुछ क्रीम पेस्ट।
Explanation: Since some pastes are creams and lime is a paste, it follows that some creams are pastes. However, it is not definite that some creams are not pastes. / व्याख्या: कुछ पेस्ट क्रीम, लाइम पेस्ट से कुछ क्रीम पेस्ट।
21. Complete the series choosing the missing letter: b _ abbc _ bbca _ bcabb _ ab / श्रृंखला पूरी करें: b _ abbc _ bbca _ bcabb _ ab
Answer: C / उत्तर: C
Explanation: The pattern involves a repeating sequence of letters. The missing letters "cabc" complete the series. / व्याख्या: दोहराव पैटर्न "bc"।
Explanation: The pattern involves a repeating sequence of letters. The missing letters "cabc" complete the series. / व्याख्या: दोहराव पैटर्न "bc"।
22. In the following question, there is certain relationship between the first two terms. Choose the fourth term from the following options which has a similar kind of relation with the third term. Mother : Daughter :: Father : ? / माँ : बेटी :: पिता : ?
Answer: A / उत्तर: A
Explanation: A mother is the same gender as the parent of her daughter. Similarly, a father is the same gender as the parent of his son. / व्याख्या: समान लिंग संबंध।
Explanation: A mother is the same gender as the parent of her daughter. Similarly, a father is the same gender as the parent of his son. / व्याख्या: समान लिंग संबंध।
23. Six people A, B, C, D, E and F are sitting on the ground in a hexagonal shape. All the sides of the hexagon so formed are of same length. A is not adjacent to B or C; D is not adjacent to C or E; B and C are adjacent; F is the immediate neighbour of D and C. Who is placed opposite to E? / छह लोग A से F हेक्सागोनल आकार में बैठे हैं। A B या C से सटा नहीं; D C या E से सटा नहीं; B और C सटे; F D और C का तत्काल पड़ोसी। E के विपरीत कौन?
Answer: D / उत्तर: D
Explanation: Based on the given conditions, F is placed opposite to E in the hexagonal arrangement. / व्याख्या: शर्तों से F E के विपरीत।
Explanation: Based on the given conditions, F is placed opposite to E in the hexagonal arrangement. / व्याख्या: शर्तों से F E के विपरीत।
24. In a certain code language KIRAN is coded as LJSBO then in that language SRIKANT is coded as: / कोड में KIRAN = LJSBO तो SRIKANT = ?
Answer: A / उत्तर: A
Explanation: Each letter in "KIRAN" is shifted forward by one position in the alphabet to get "LJSBO". Applying the same logic to "SRIKANT" gives "TSJLBOU". / व्याख्या: प्रत्येक अक्षर +1 शिफ्ट।
Explanation: Each letter in "KIRAN" is shifted forward by one position in the alphabet to get "LJSBO". Applying the same logic to "SRIKANT" gives "TSJLBOU". / व्याख्या: प्रत्येक अक्षर +1 शिफ्ट।
25. Select the option that is true about the Statements and Conclusions given: Statements: All roses are flowers All lilies are flowers Conclusions: I. All roses are lilies II. All lilies are roses / कथन: सभी गुलाब फूल हैं सभी कमल फूल हैं निष्कर्ष: I. सभी गुलाब कमल हैं II. सभी कमल गुलाब हैं
Answer: D / उत्तर: D
Explanation: Both roses and lilies are flowers, but there is no direct relationship between roses and lilies. Therefore, neither conclusion I nor II follows. / व्याख्या: फूल होने से सीधा संबंध नहीं।
Explanation: Both roses and lilies are flowers, but there is no direct relationship between roses and lilies. Therefore, neither conclusion I nor II follows. / व्याख्या: फूल होने से सीधा संबंध नहीं।
26. Find the compound interest on Rs. 18300 for 9 months at 16% per annum compounded quarterly. / 18300 रुपये पर 16% चक्रवृद्धि ब्याज 9 महीने तिमाही?
Answer: C / उत्तर: C
Explanation: Principal = Rs. 18300, Time = 9 months = 3 quarters, Rate = 16% per annum = 4% per quarter. CI = P {(1 + R/100)^3 - 1} = 18300 {(1 + 4/100)^3 - 1} = Rs. 2285.0112. / व्याख्या: P[(1+R/100)^n -1] सूत्र।
Explanation: Principal = Rs. 18300, Time = 9 months = 3 quarters, Rate = 16% per annum = 4% per quarter. CI = P {(1 + R/100)^3 - 1} = 18300 {(1 + 4/100)^3 - 1} = Rs. 2285.0112. / व्याख्या: P[(1+R/100)^n -1] सूत्र।
27. Ages of two persons differ by 16 years. If 6 years ago, the elder one was 3 times as old as the younger one, find their present ages. / दो व्यक्तियों की आयु 16 वर्ष भिन्न, 6 वर्ष पहले बड़ा 3 गुना था, वर्तमान आयु?
Answer: D / उत्तर: D
Explanation: Let the younger person's age be A, then the elder's age is A + 16. 6 years ago: 3(A - 6) = (A + 16 - 6) → A = 14. Thus, present ages are 14 and 30 years. / व्याख्या: छोटे की आयु A, बड़ा A+16, 3(A-6)=A+10, A=14।
Explanation: Let the younger person's age be A, then the elder's age is A + 16. 6 years ago: 3(A - 6) = (A + 16 - 6) → A = 14. Thus, present ages are 14 and 30 years. / व्याख्या: छोटे की आयु A, बड़ा A+16, 3(A-6)=A+10, A=14।
28. Amit is now 20 years old and Leela is 4 years old. In how many years will Amit be twice as old as Leela? / अमित 20 वर्ष, लीला 4 वर्ष। अमित लीला के दोगुना कब होगा?
Answer: B / उत्तर: B
Explanation: Let after y years Amit will be twice as old as Leela: 20 + y = 2 × (4 + y) → y = 12. / व्याख्या: 20 + y = 2(4 + y), y=12।
Explanation: Let after y years Amit will be twice as old as Leela: 20 + y = 2 × (4 + y) → y = 12. / व्याख्या: 20 + y = 2(4 + y), y=12।
29. Which of the following has fractions in ascending order? / निम्नलिखित में से कौन सी भिन्नें आरोही क्रम में हैं?
Answer: D / उत्तर: D
Explanation: Convert to decimals: 5/16 = 0.3125, 6/17 = 0.3529, 7/18 = 0.3888. Arranged in ascending order: 0.3125 < 0.3529 < 0.3888, so 5/16 < 6/17 < 7/18. / व्याख्या: दशमलव: 0.3125 < 0.3529 < 0.3888।
Explanation: Convert to decimals: 5/16 = 0.3125, 6/17 = 0.3529, 7/18 = 0.3888. Arranged in ascending order: 0.3125 < 0.3529 < 0.3888, so 5/16 < 6/17 < 7/18. / व्याख्या: दशमलव: 0.3125 < 0.3529 < 0.3888।
30. Ram bought an iPhone for Rs.75,000, Mac book for Rs.95,000, iPad for Rs.30,000 and sold all the items to Shyam at an average price of Rs.70,000. How much profit did Ram make out of the deal? / राम ने iPhone 75,000, Mac 95,000, iPad 30,000 खरीदे, श्याम को औसत 70,000 में बेचा। लाभ?
Answer: C / उत्तर: C
Explanation: Total cost price = 75,000 + 95,000 + 30,000 = Rs. 200,000. Total sell price = 70,000 × 3 = Rs. 210,000. Profit = 210,000 - 200,000 = Rs. 10,000. / व्याख्या: कुल CP 200,000, SP 210,000, लाभ 10,000।
Explanation: Total cost price = 75,000 + 95,000 + 30,000 = Rs. 200,000. Total sell price = 70,000 × 3 = Rs. 210,000. Profit = 210,000 - 200,000 = Rs. 10,000. / व्याख्या: कुल CP 200,000, SP 210,000, लाभ 10,000।
31. If three observations are 80, 82, and 70, and the fourth one is twice the fifth observation, and its average is given as 95, then the two observations are: / तीन अवलोकन 80, 82, 70, चौथा पांचवां का दोगुना, औसत 95, चौथा और पांचवा?
Answer: D / उत्तर: D
Explanation: Let the fifth observation be x, then the fourth is 2x. Sum of observations = 95 × 5 = 475. Also, sum = 80 + 82 + 70 + x + 2x = 232 + 3x. So, 475 = 232 + 3x → x = 81. Thus, observations are 81 and 162. / व्याख्या: पांचवां x, चौथा 2x, 232 + 3x = 475, x=81।
Explanation: Let the fifth observation be x, then the fourth is 2x. Sum of observations = 95 × 5 = 475. Also, sum = 80 + 82 + 70 + x + 2x = 232 + 3x. So, 475 = 232 + 3x → x = 81. Thus, observations are 81 and 162. / व्याख्या: पांचवां x, चौथा 2x, 232 + 3x = 475, x=81।
32. The average of 6 results is 8. The average of first 2 is 7.5. What is the average of the remaining four? / 6 परिणामों का औसत 8, पहले 2 का 7.5, शेष 4 का औसत?
Answer: B / उत्तर: B
Explanation: Total value of 6 results = 8 × 6 = 48. Total value of first 2 = 7.5 × 2 = 15. Total value of remaining four = 48 - 15 = 33. Average = 33 / 4 = 8.25. / व्याख्या: कुल 48, पहले 15, शेष 33/4=8.25।
Explanation: Total value of 6 results = 8 × 6 = 48. Total value of first 2 = 7.5 × 2 = 15. Total value of remaining four = 48 - 15 = 33. Average = 33 / 4 = 8.25. / व्याख्या: कुल 48, पहले 15, शेष 33/4=8.25।
33. A dealer is selling an article with a marked price of Rs. 1400 at a discount of 5% on the marked price. Find the selling price of the article? / 1400 रुपये MP पर 5% छूट, SP?
Answer: B / उत्तर: B
Explanation: SP = MP (1 - D/100) = 1400 (1 - 5/100) = 1400 × 19/20 = Rs. 1330. / व्याख्या: MP × (1 - छूट/100) = 1330।
Explanation: SP = MP (1 - D/100) = 1400 (1 - 5/100) = 1400 × 19/20 = Rs. 1330. / व्याख्या: MP × (1 - छूट/100) = 1330।
34. A thief is noticed by a policeman from a distance of 200 m. The thief starts running and the policeman chases him. The thief and policeman run at the rate of 10 km/hr and 11 km/hr respectively. At what distance will the policeman catch the thief? / चोर 200 मी दूर, 10 किमी/घं भागा, पुलिस 11 किमी/घं। कब पकड़ेगी?
Answer: B / उत्तर: B
Explanation: Relative speed = 11 - 10 = 1 km/hr. Convert 200 m to km: 0.2 km. Time = 0.2 / 1 = 0.2 hours. Distance covered = speed × time = 11 × 0.2 = 2.2 km. / व्याख्या: सापेक्ष गति 1 किमी/घं, समय 0.2 घं, दूरी 2.2 किमी।
Explanation: Relative speed = 11 - 10 = 1 km/hr. Convert 200 m to km: 0.2 km. Time = 0.2 / 1 = 0.2 hours. Distance covered = speed × time = 11 × 0.2 = 2.2 km. / व्याख्या: सापेक्ष गति 1 किमी/घं, समय 0.2 घं, दूरी 2.2 किमी।
35. A man walks to a place at the rate of 4 kmph, and comes back on a bicycle at 16 kmph. The average speed for the entire journey is? / 4 किमी/घं पैदल गया, 16 किमी/घं साइकिल से लौटा। औसत गति?
Answer: B / उत्तर: B
Explanation: 2ab/(a+b)=2*4*16/20=6.4. / व्याख्या: हार्मोनिक माध्य 2ab/(a+b)=6.4।
Explanation: 2ab/(a+b)=2*4*16/20=6.4. / व्याख्या: हार्मोनिक माध्य 2ab/(a+b)=6.4।
36. Which of the following is a non-binary compound? / निम्नलिखित में से कौन सा गैर-द्विपदी यौगिक है?
Answer: A / उत्तर: A
Explanation: Nitric acid (HNO₃) is a non-binary compound because it contains more than two different elements. Non-binary compounds are either made of the same elements (e.g., O₂) or more than two different elements (e.g., NH₄Cl, H₃PO₄). Binary compounds contain only two different elements, such as ammonia (NH₃) and methane (CH₄). / व्याख्या: HNO₃ में 3 तत्व, द्विपदी में 2।
Explanation: Nitric acid (HNO₃) is a non-binary compound because it contains more than two different elements. Non-binary compounds are either made of the same elements (e.g., O₂) or more than two different elements (e.g., NH₄Cl, H₃PO₄). Binary compounds contain only two different elements, such as ammonia (NH₃) and methane (CH₄). / व्याख्या: HNO₃ में 3 तत्व, द्विपदी में 2।
37. Which of the following reproduces through binary fission? / निम्नलिखित में से कौन द्विखंडन से प्रजनन करता है?
Answer: A / उत्तर: A
Explanation: Amoeba, a unicellular organism, reproduces through binary fission, where the cell divides into two equal-sized daughter cells after replicating its genetic material. Binary fission is a type of asexual reproduction typically observed in prokaryotes and some single-celled eukaryotes, producing two similar individuals from a single parent cell. / व्याख्या: एककोशिकीय, कोशिका दो बराबर भागों में विभाजित।
Explanation: Amoeba, a unicellular organism, reproduces through binary fission, where the cell divides into two equal-sized daughter cells after replicating its genetic material. Binary fission is a type of asexual reproduction typically observed in prokaryotes and some single-celled eukaryotes, producing two similar individuals from a single parent cell. / व्याख्या: एककोशिकीय, कोशिका दो बराबर भागों में विभाजित।
38. Which of the following device is used to test whether an object is carrying charge or not? / वस्तु पर आवेश परीक्षण के लिए कौन सा उपकरण?
Answer: C / उत्तर: C
Explanation: An electroscope is an instrument used to detect the presence of an electric charge or ionizing radiation. It consists of a pair of thin gold leaves suspended from an electrical conductor within an insulating container, which deflect when charged particles are present. / व्याख्या: सोने की पत्तियाँ प्रतिकर्षित हो जाती हैं।
Explanation: An electroscope is an instrument used to detect the presence of an electric charge or ionizing radiation. It consists of a pair of thin gold leaves suspended from an electrical conductor within an insulating container, which deflect when charged particles are present. / व्याख्या: सोने की पत्तियाँ प्रतिकर्षित हो जाती हैं।
39. Black lung disease is common amongst people working in - / ब्लैक लंग रोग किसमें आम है?
Answer: A / उत्तर: A
Explanation: Black lung disease, or coal workers' pneumoconiosis (CWP), is an occupational lung disease caused by inhaling coal dust, leading to lung scarring and breathing difficulties. It is most common among coal miners due to prolonged exposure to coal dust. / व्याख्या: कोयला धूल से फेफड़ों की क्षति।
Explanation: Black lung disease, or coal workers' pneumoconiosis (CWP), is an occupational lung disease caused by inhaling coal dust, leading to lung scarring and breathing difficulties. It is most common among coal miners due to prolonged exposure to coal dust. / व्याख्या: कोयला धूल से फेफड़ों की क्षति।
40. The speed of light in vacuum is: / निर्वात में प्रकाश की गति है:
Answer: B / उत्तर: B
Explanation: The speed of light in a vacuum is 3 × 10⁸ m/s. Light travels in a straight line, and its speed remains constant in a vacuum, though it varies in different media (e.g., 2.25 × 10⁸ m/s in water, 2 × 10⁸ m/s in glass). / व्याख्या: 3 × 10⁸ मी/से, स्थिर।
Explanation: The speed of light in a vacuum is 3 × 10⁸ m/s. Light travels in a straight line, and its speed remains constant in a vacuum, though it varies in different media (e.g., 2.25 × 10⁸ m/s in water, 2 × 10⁸ m/s in glass). / व्याख्या: 3 × 10⁸ मी/से, स्थिर।
41. Lymph is______. / लिम्फ़ ___ है।
Answer: B / उत्तर: B
Explanation: Lymph is a pale fluid that bathes tissues, maintaining fluid balance and removing bacteria. It is essentially blood without red blood cells (RBCs), flowing more slowly than blood and entering the blood system via lymphatic channels. It also transports plasma proteins, fats, and fat-soluble vitamins. / व्याख्या: RBC रहित रक्त, ऊतकों को धोता है।
Explanation: Lymph is a pale fluid that bathes tissues, maintaining fluid balance and removing bacteria. It is essentially blood without red blood cells (RBCs), flowing more slowly than blood and entering the blood system via lymphatic channels. It also transports plasma proteins, fats, and fat-soluble vitamins. / व्याख्या: RBC रहित रक्त, ऊतकों को धोता है।
42. The distance between stars and the Earth is measured in______. / तारों और पृथ्वी के बीच दूरी ___ में मापी जाती है।
Answer: B / उत्तर: B
Explanation: A light-year is a unit of distance equal to the distance light travels in one year (9.461 × 10¹² km). It is used to measure vast distances between stars and Earth, as it is more practical than meters or kilometers for such scales. / व्याख्या: एक वर्ष में प्रकाश की यात्रा दूरी, 9.461 × 10¹² किमी।
Explanation: A light-year is a unit of distance equal to the distance light travels in one year (9.461 × 10¹² km). It is used to measure vast distances between stars and Earth, as it is more practical than meters or kilometers for such scales. / व्याख्या: एक वर्ष में प्रकाश की यात्रा दूरी, 9.461 × 10¹² किमी।
43. When the distance covered by an object is directly proportional to time, it is said to travel with __________ . / वस्तु की दूरी समय के समानुपाती हो तो गति _____ है।
Answer: B / उत्तर: B
Explanation: If distance is directly proportional to time (distance = speed × time), the speed must be constant, indicating uniform motion. This occurs when neither speed nor time varies, replacing equality with proportionality. / व्याख्या: दूरी = गति × समय, स्थिर गति।
Explanation: If distance is directly proportional to time (distance = speed × time), the speed must be constant, indicating uniform motion. This occurs when neither speed nor time varies, replacing equality with proportionality. / व्याख्या: दूरी = गति × समय, स्थिर गति।
44. Self Pollination refers to the ____. / स्व-परागण ___ को कहते हैं।
Answer: B / उत्तर: B
Explanation: Self-pollination occurs when pollen grains from the anther of a flower are transferred to the stigma of the same flower (or another flower on the same plant). This contrasts with cross-pollination, which involves different flowers. / व्याख्या: सम फूल में परागण।
Explanation: Self-pollination occurs when pollen grains from the anther of a flower are transferred to the stigma of the same flower (or another flower on the same plant). This contrasts with cross-pollination, which involves different flowers. / व्याख्या: सम फूल में परागण।
45. Pure water can be made to conduct electricity by dissolving ____. / शुद्ध जल को चालक बनाने के लिए ___ घोलें।
Answer: C / उत्तर: C
Explanation: Pure water conducts electricity when common salt (NaCl) is dissolved, as salt dissociates into sodium (Na⁺) and chloride (Cl⁻) ions, which carry electric current. Ionic compounds like salt conduct electricity in solution due to free-moving ions. / व्याख्या: NaCl से Na+ Cl- आयन, चालक बनाते।
Explanation: Pure water conducts electricity when common salt (NaCl) is dissolved, as salt dissociates into sodium (Na⁺) and chloride (Cl⁻) ions, which carry electric current. Ionic compounds like salt conduct electricity in solution due to free-moving ions. / व्याख्या: NaCl से Na+ Cl- आयन, चालक बनाते।
46. After completing the gold foil experiment, Rutherford concluded that the size of the nucleus is very small compared to the size of the atom. This is because: / रदरफोर्ड ने सोने की पन्नी प्रयोग से नाभिक छोटा निष्कर्ष निकाला क्योंकि:
Answer: A / उत्तर: A
Explanation: In Rutherford's gold foil experiment, only a small fraction (1 in 12,000) of alpha particles were deflected back, indicating that the atom's positive charge and mass are concentrated in a very small volume (the nucleus), with most of the atom being empty space. / व्याख्या: केवल 1/12000 पीछे मुड़ा, नाभिक छोटा।
Explanation: In Rutherford's gold foil experiment, only a small fraction (1 in 12,000) of alpha particles were deflected back, indicating that the atom's positive charge and mass are concentrated in a very small volume (the nucleus), with most of the atom being empty space. / व्याख्या: केवल 1/12000 पीछे मुड़ा, नाभिक छोटा।
47. One cannot stop food after swallowing because of the: / निगलने के बाद भोजन रोकना असंभव क्यों?
Answer: A / उत्तर: A
Explanation: The intestine contains smooth muscles, which are involuntary muscles responsible for peristalsis, the process that moves food through the digestive tract after swallowing. This involuntary action ensures food continues its journey without conscious control. / व्याख्या: चिकने पेशी, पेरिस्टाल्सिस अनैच्छिक।
Explanation: The intestine contains smooth muscles, which are involuntary muscles responsible for peristalsis, the process that moves food through the digestive tract after swallowing. This involuntary action ensures food continues its journey without conscious control. / व्याख्या: चिकने पेशी, पेरिस्टाल्सिस अनैच्छिक।
48. In a box type solar cooker, the part which is responsible for producing greenhouse effect is: / बॉक्स सोलर कुकर में ग्रीनहाउस प्रभाव के लिए भाग?
Answer: A / उत्तर: A
Explanation: In a box-type solar cooker, the glass sheet traps heat inside by preventing thermal radiation from escaping, creating a greenhouse effect. This allows sunlight to enter and heat the cooker while retaining warmth for cooking. / व्याख्या: कांच शीट IR फंसाती, दृश्य प्रकाश प्रवेश।
Explanation: In a box-type solar cooker, the glass sheet traps heat inside by preventing thermal radiation from escaping, creating a greenhouse effect. This allows sunlight to enter and heat the cooker while retaining warmth for cooking. / व्याख्या: कांच शीट IR फंसाती, दृश्य प्रकाश प्रवेश।
49. Refraction of light is responsible for: / प्रकाश अपवर्तन किसके लिए जिम्मेदार?
Answer: B / उत्तर: B
Explanation: The twinkling of stars is caused by atmospheric refraction, where light from stars bends as it passes through Earth's atmosphere with varying air densities. This causes fluctuations in perceived brightness, making stars appear to twinkle. / व्याख्या: वायुमंडलीय अपवर्तन से टिमटिमाना।
Explanation: The twinkling of stars is caused by atmospheric refraction, where light from stars bends as it passes through Earth's atmosphere with varying air densities. This causes fluctuations in perceived brightness, making stars appear to twinkle. / व्याख्या: वायुमंडलीय अपवर्तन से टिमटिमाना।
50. Candela is unit of _________. / कैंडेला ___ की इकाई है।
Answer: D / उत्तर: D
Explanation: Candela (cd) is the SI unit of luminous intensity, which measures the power of light emitted by a source in a given direction. It is one of the seven base SI units, alongside units like kilogram and meter. / व्याख्या: प्रकाश तीव्रता की SI इकाई।
Explanation: Candela (cd) is the SI unit of luminous intensity, which measures the power of light emitted by a source in a given direction. It is one of the seven base SI units, alongside units like kilogram and meter. / व्याख्या: प्रकाश तीव्रता की SI इकाई।
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