Correct answer: (A) 180 The smallest three-digit multiple of 5 is 100 and the largest is 995. The count is (995 − 100) ÷ 5 + 1 = 179 + 1 = 180.
1 marks · 2023 · Set A
Question 2
The value of (1 + 1/2)(1 + 1/3)(1 + 1/4) … (1 + 1/120) is
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Correct answer: (A) 60·5 Turn each bracket into a fraction: (1 + 1/n) = (n+1)/n. The product becomes (3/2) × (4/3) × (5/4) × … × (121/120). Each numerator cancels the next denominator, leaving only the first denominator 2 and the last numerator 121. So the value is 121/2 = 60·5.
1 marks · 2023 · Set A
Question 3
The distance between Delhi and Agra is 200 km. Suppose you are travelling from Delhi to Agra by car. If you maintain an average speed of 90 km/hr for 120 km and 40 km/hr for the remaining distance, how much time will you take, on average, to reach Agra?
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Correct answer: (A) 3 hr 20 min Time is distance ÷ speed. Covering 200 kilometres at an average of 60 km/hr takes 200 ÷ 60 = 10/3 hours, that is 3 hours 20 minutes.
1 marks · 2023 · Set A
Question 4
10% loss on selling price is what percent loss on cost price?
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Correct answer: (A) 9 1/11% Take the selling price as 100. A 10% loss means a loss of 10, so the cost price was 110. Loss on cost = (10 ÷ 110) × 100 = 9 1/11 %.
1 marks · 2023 · Set A
Question 5
A pizza boy delivered two-fifths of his pizzas on day 1, three-fourths on day 2 and 9/16 on day 3. If he had the same number of pizzas at the beginning of each day, on which day did he deliver the most pizzas?
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Correct answer: (B) Day 2 Compare the fractions: two-fifths is 0·4, three-fourths is 0·75 and 9/16 is 0·5625. Since he began each day with the same number of pizzas, the largest fraction means the most delivered—so day 2.
1 marks · 2023 · Set A
Question 6
The cost of carpeting a room 18 m long with carpet 75 cm wide at ₹4.50 per metre is ₹810. The breadth of the room is
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Correct answer: (B) 7.5 m
1 marks · 2023 · Set A
Question 7
Two persons A and B complete a task in 15 days working together. A completes it in 20 days alone. How many days will B take to finish it alone?
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Correct answer: (C) 60 days
1 marks · 2023 · Set A
Question 8
The sum of the numerator and denominator of a fraction is 11. If 1 is added to the numerator and 2 subtracted from the denominator, it becomes 2/3. The fraction is
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Correct answer: (C) 3/8
1 marks · 2023 · Set A
Question 9
An isotropic source of 2 candela produces light flux equal to
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Correct answer: (C) 8π lumen An isotropic source throws light equally in every direction, so the total luminous flux is 4π × the luminous intensity. With an intensity of 2 candela the flux is 4π × 2 = 8π lumen.
1 marks · 2023 · Set A
Question 10
The spray bottles used as window or household cleaner or perfume sprayer work on
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Correct answer: (B) Bernoulli’s principle In a spray bottle air rushes past quickly, the pressure there drops, and liquid is drawn up the tube into a spray. That fall of pressure with speed is Bernoulli's principle.
1 marks · 2023 · Set A
Question 11
The trade name of basic lead carbonate is
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Correct answer: (A) White lead The trade name of basic lead carbonate is white lead, once used in white paint. Red lead is Pb₃O₄ and litharge is PbO.
1 marks · 2023 · Set A
Question 12
Which of the following elements has the largest atomic radius?
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Correct answer: (A) Lithium Moving left to right across a period the nuclear charge rises and the atomic radius shrinks. Lithium lies furthest left of the three, so its radius is the largest.
1 marks · 2023 · Set A
Question 13
The phenomenon of photoperiodism in plants was discovered by
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Correct answer: (A) Garner and Allard Photoperiodism in plants—flowering according to the length of day and night—was discovered by Garner and Allard in 1920.
1 marks · 2023 · Set A
Question 14
Silent Valley of Kerala is preserved because
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Correct answer: (A) It contains very rare species of plants and animals
1 marks · 2023 · Set A
Question 15
During normal respiration in a mammal, the diaphragm is
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Correct answer: (D) More than one of the above During inhalation the diaphragm contracts, moves down and flattens, which enlarges the chest cavity. ‘Flattened’ and ‘lowered’ describe the same movement, so more than one option is correct.
1 marks · 2023 · Set A
Question 16
The most important cell type associated with the immunity of the body is
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Correct answer: (B) Lymphocytes Lymphocytes are the white blood cells that make antibodies and recognise and destroy germs. Platelets clot the blood and red cells carry oxygen.
1 marks · 2023 · Set A
Question 17
The book entitled Gyan Deepak was authored by which great saint?
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Correct answer: (B) Dariya Saheb ‘Gyan Deepak’ was written by the saint Dariya Saheb, counted among the chief poets of Bihar's nirgun saint tradition.
1 marks · 2023 · Set A
Question 18
Which agency in India has launched the UTSAH portal?
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Correct answer: (A) UGC The UTSAH portal was launched by the University Grants Commission (UGC) to monitor the quality of higher-education institutions.
1 marks · 2023 · Set A
Question 19
A. P. J. Abdul Kalam Satellite Launch Vehicle Mission was launched on
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Correct answer: (C) 19 February 2023 The A. P. J. Abdul Kalam Satellite Launch Vehicle Mission was launched from Chennai on 19 February 2023.
1 marks · 2023 · Set A
Question 20
In which city was the first pure green hydrogen plant commissioned?
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Correct answer: (E) None of the above India's first pure (99·999%) green hydrogen plant was commissioned by Oil India Limited at Jorhat in Assam in April 2022. Hyderabad, Mumbai and Pune are all wrong, so the answer is ‘None of the above’.
1 marks · 2023 · Set A
Question 21
Which year has the UNO declared as the International Year of Millets?
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Correct answer: (A) 2023
1 marks · 2023 · Set A
Question 22
Who among the following won the 2022 Nobel Peace Prize?
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Correct answer: (A) Ales Bialiatski The 2022 Nobel Peace Prize went jointly to Ales Bialiatski of Belarus and to two human-rights organisations, one Russian and one Ukrainian.
1 marks · 2023 · Set A
Question 23
Who is the Chairman of the State Commission for Backward Classes appointed by the Bihar Government on 2 January 2022?
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Correct answer: (A) Justice Sanjay Kumar On 2 January 2022 the Bihar Government appointed Justice Sanjay Kumar as Chairman of the State Commission for Backward Classes.
1 marks · 2023 · Set A
Question 24
Which was the first movie in Bhojpuri?
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Correct answer: (A) Ganga Maiya Tohe Piyari Chadhaibo The first Bhojpuri film, ‘Ganga Maiya Tohe Piyari Chadhaibo’, was made in 1963 and directed by Kundan Kumar.
1 marks · 2023 · Set A
Question 25
Arrange these Indian thermal power projects from east to west: 1. Kota; 2. Namrup; 3. Obra; 4. Parichha. Select the correct answer using the codes below.
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Correct answer: (C) 2, 3, 4, 1
1 marks · 2023 · Set A
Question 26
According to Trewartha, what type of climate is found in India?
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Correct answer: (B) Subtropical monsoon climate
1 marks · 2023 · Set A
Question 27
What is the normal date of withdrawal of the south-west monsoon at Hyderabad?
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Correct answer: (B) 15 October The south-west monsoon normally withdraws from Hyderabad by 15 October.
1 marks · 2023 · Set A
Question 28
Which of the following States has maximum urbanization?
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Correct answer: (A) Goa Goa is India's most urbanised State—more than half its population lives in towns and cities.
1 marks · 2023 · Set A
Question 29
The ‘Malnad’ region is associated with which of the following plateaus of India?
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Correct answer: (C) Karnataka Plateau The western, higher-rainfall hill belt of the Karnataka plateau is called ‘Malnad’.
1 marks · 2023 · Set A
Question 30
The South Peninsular Upland is a part of
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Correct answer: (A) Gondwana Land
1 marks · 2023 · Set A
Question 31
What is Bihar’s population as a percentage of India’s total population?
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Correct answer: (A) 8.58%
1 marks · 2023 · Set A
Question 32
Which pair is not correctly matched with respect to the region south of the Ganga in Bihar?
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Correct answer: (C) Patna–Vaishali
1 marks · 2023 · Set A
Question 33
Who is called the ‘Prophet of New India’?
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Correct answer: (A) Raja Ram Mohan Roy Raja Ram Mohan Roy is called the ‘Prophet of New India’. Having brought about the end of sati and founded the Brahmo Samaj, he is taken as the herald of the Indian renaissance.
1 marks · 2023 · Set A
Question 34
Which revolt is mentioned in Bankim Chandra Chattopadhyay’s Anandamath?
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Correct answer: (A) Sannyasi
1 marks · 2023 · Set A
Question 35
Who founded ‘Abhinav Bharat’ in London?
See answer
Correct answer: (A) Vinayak Damodar Savarkar
1 marks · 2023 · Set A
Question 36
Where was the Ghadar Party established?
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Correct answer: (C) United States of America The Ghadar Party was founded in 1913 at San Francisco, in the United States of America.
1 marks · 2023 · Set A
Question 37
Who was appointed ‘Commander in Chief’ by Birsa Munda?
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Correct answer: (E) None of the above
1 marks · 2023 · Set A
Question 38
Who formed the Bihar Socialist Party?
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Correct answer: (B) Phulan Prasad Varma and Jayaprakash Narayan The Bihar Socialist Party was formed in 1931 by Phulan Prasad Varma and Jayaprakash Narayan. It became the basis of the All India Congress Socialist Party.
1 marks · 2023 · Set A
Question 39
In which year was the Bihar Provincial Congress Committee, headquartered at Patna, formed?
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Correct answer: (A) 1908 The Bihar Provincial Congress Committee was formed in 1908 with its headquarters at Patna—before Bihar became a separate province in 1912.
1 marks · 2023 · Set A
Question 40
Who established a branch of the Anushilan Samiti in Patna in 1913?
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Correct answer: (C) Sachindra Nath Sanyal Sachindra Nath Sanyal established the Patna branch of the Anushilan Samiti in 1913. He went on to be among the founders of the Hindustan Republican Association.
1 marks · 2023 · Set A
Question 41
Who gave the concept of ‘pure sociology’?
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Correct answer: (B) Lester F. Ward
1 marks · 2023 · Set A
Question 42
Who said, “The science of human society is yet in its extreme infancy”?
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Correct answer: (A) Radcliffe-Brown
1 marks · 2023 · Set A
Question 43
Who named a ‘pilot survey’ as ‘a small replica of the main survey’?
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Correct answer: (C) C. A. Moser
1 marks · 2023 · Set A
Question 44
Society is characterized by
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Correct answer: (B) Shared norms, values and cultural practices
1 marks · 2023 · Set A
Question 45
Who first used the word ‘sociometry’?
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Correct answer: (C) J. L. Moreno
1 marks · 2023 · Set A
Question 46
Which sociologists described three elements of community sentiment—we-feeling, role-feeling and dependency-feeling?
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Correct answer: (C) MacIver and Page
1 marks · 2023 · Set A
Question 47
The concept of ‘sense of community’ refers to
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Correct answer: (B) The subjective perception of belonging, connectedness and identity within a community
1 marks · 2023 · Set A
Question 48
Who explained, “If we consider something as an organized group, it is an association; if as a form of procedure, it is an institution”?
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Correct answer: (A) MacIver and Page
1 marks · 2023 · Set A
Question 49
Who defined competition as “the individual and group striving for goals that only one can win”?
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Correct answer: (B) G. R. Leslie
1 marks · 2023 · Set A
Question 50
According to Robert Redfield, what is the term for a community that maintains strong ties to traditional values and practices while interacting with a larger society?