Q. Given vectors P = (4, 1, 0) and Q = (0, 2, 3), find the scalar product P · Q.
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Solution
P · Q = 4*0 + 1*2 + 0*3 = 0 + 2 + 0 = 2.
Correct Answer:
B
— 6
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Q. Given vectors P = (4, 1, 0) and Q = (1, 2, 3), find the scalar product P · Q.
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Solution
P · Q = 4*1 + 1*2 + 0*3 = 4 + 2 + 0 = 6.
Correct Answer:
B
— 11
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Q. H and I invest in a business in the ratio 4:5. If the total profit is $4500, how much does H receive?
A.
$2000
B.
$1800
C.
$2500
D.
$2500
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Solution
Total parts = 4 + 5 = 9. H's share = (4/9) * 4500 = $2000.
Correct Answer:
C
— $2500
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Q. Hand is to Glove as Foot is to?
A.
Sock
B.
Shoe
C.
Sandals
D.
Slipper
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Solution
A glove is worn on a hand just as a sock is worn on a foot.
Correct Answer:
A
— Sock
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Q. He has less friends than she does. (2022)
A.
He has fewer friends than she does.
B.
He has less friend than she does.
C.
He has lesser friends than she does.
D.
He has few friends than she does.
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Solution
The correct term is 'fewer' for countable nouns like 'friends'.
Correct Answer:
A
— He has fewer friends than she does.
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Q. He is a gooder player than his friend.
A.
He is a better player than his friend.
B.
He is good player than his friend.
C.
He is the gooder player than his friend.
D.
He is more good player than his friend.
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Solution
The comparative form of 'good' is 'better', not 'gooder'.
Correct Answer:
A
— He is a better player than his friend.
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Q. He is more taller than his brother. (2021)
A.
He is taller than his brother.
B.
He is more tall than his brother.
C.
He is tall than his brother.
D.
He is more taller than his brother.
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Solution
The comparative form of 'tall' is 'taller', not 'more taller'.
Correct Answer:
A
— He is taller than his brother.
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Q. He runs more faster than anyone else.
A.
He runs faster than anyone else.
B.
He run more fast than anyone else.
C.
He is more faster than anyone else.
D.
He runs the most fast than anyone else.
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Solution
The correct form is 'faster', not 'more faster'.
Correct Answer:
A
— He runs faster than anyone else.
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Q. He runs more faster than his brother. (2020)
A.
He runs faster than his brother.
B.
He run more faster than his brother.
C.
He runs more fast than his brother.
D.
He run faster than his brother.
Show solution
Solution
The comparative form of 'fast' is 'faster', not 'more faster'.
Correct Answer:
A
— He runs faster than his brother.
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Q. He was known for his ___ in solving complex problems.
A.
incompetence
B.
skill
C.
ignorance
D.
hesitation
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Solution
The word 'skill' indicates proficiency in problem-solving.
Correct Answer:
B
— skill
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Q. He was very ___ about his chances of winning the race.
A.
optimistic
B.
pessimistic
C.
indifferent
D.
uncertain
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Solution
The word 'optimistic' fits best as it indicates a positive outlook on winning.
Correct Answer:
A
— optimistic
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Q. Her argument was compelling, yet it lacked ______ evidence to fully convince the skeptics.
A.
anecdotal
B.
conclusive
C.
superficial
D.
ambiguous
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Solution
The term 'conclusive' suggests that the evidence needed to be definitive and convincing, which aligns with the context of the argument.
Correct Answer:
B
— conclusive
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Q. Her __________ remarks during the meeting revealed her deep understanding of the subject matter. (2023)
A.
vague
B.
insightful
C.
irrelevant
D.
superficial
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Solution
Deep understanding is typically associated with insightful remarks.
Correct Answer:
B
— insightful
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Q. His decision to leave the company was seen as a ______ move, given the recent layoffs.
A.
prudent
B.
reckless
C.
foolhardy
D.
impulsive
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Solution
The term 'prudent' indicates that the decision was wise and careful, especially in light of the layoffs, which fits the context.
Correct Answer:
A
— prudent
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Q. His remarks were intended to __________ the audience, but instead, they sparked a heated debate.
A.
inspire
B.
alienate
C.
confuse
D.
entertain
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Solution
The word 'inspire' suggests that the speaker aimed to motivate or uplift the audience, which contrasts with the outcome.
Correct Answer:
A
— inspire
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Q. His ______ approach to problem-solving often led to innovative solutions that others had overlooked.
A.
conventional
B.
rigid
C.
unorthodox
D.
predictable
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Solution
The term 'unorthodox' describes a non-traditional approach, which aligns with the idea of innovative solutions.
Correct Answer:
C
— unorthodox
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Q. His __________ remarks during the meeting led to a heated debate among the participants.
A.
tactful
B.
provocative
C.
diplomatic
D.
concise
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Solution
The term 'provocative' suggests that his remarks were likely to incite strong reactions, fitting the context of a heated debate.
Correct Answer:
B
— provocative
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Q. His __________ remarks during the meeting led to a heated debate among the team members. (2023)
A.
tactful
B.
provocative
C.
diplomatic
D.
conciliatory
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Solution
Remarks that lead to a heated debate are typically provocative rather than tactful or conciliatory.
Correct Answer:
B
— provocative
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Q. How can one effectively manage time while writing an essay in the UPSC Mains examination?
A.
Spend equal time on all sections.
B.
Outline the essay before writing.
C.
Write as quickly as possible.
D.
Focus only on the introduction.
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Solution
Outlining the essay before writing helps in organizing thoughts and managing time effectively, ensuring all sections are adequately addressed.
Correct Answer:
B
— Outline the essay before writing.
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Q. How can systematic errors be identified? (2020)
A.
By repeating measurements under the same conditions
B.
By averaging multiple readings
C.
By comparing results with a known standard
D.
By using different instruments
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Solution
Systematic errors can be identified by comparing results with a known standard, which helps to reveal consistent biases.
Correct Answer:
C
— By comparing results with a known standard
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Q. How did the establishment of the 'National Foundation for India' in 1992 contribute to the NGO sector? (1992)
A.
By providing direct funding to political parties.
B.
By promoting philanthropy and supporting grassroots initiatives.
C.
By focusing solely on environmental issues.
D.
By limiting the activities of existing NGOs.
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Solution
The National Foundation for India was established to promote philanthropy and support grassroots initiatives, thereby strengthening the NGO sector.
Correct Answer:
B
— By promoting philanthropy and supporting grassroots initiatives.
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Q. How did the Industrial Revolution impact urbanization in Europe?
A.
Decreased population density in cities
B.
Increased migration to rural areas
C.
Rapid growth of urban centers
D.
Stagnation of city development
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Solution
The Industrial Revolution led to rapid growth of urban centers as people moved from rural areas to cities in search of jobs in factories, resulting in significant urbanization.
Correct Answer:
C
— Rapid growth of urban centers
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Q. How did the Space Race influence international relations during the Cold War? (1960)
A.
A. It led to increased cooperation between the USA and USSR.
B.
B. It escalated tensions and competition.
C.
C. It had no significant impact.
D.
D. It resulted in disarmament treaties.
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Solution
The Space Race intensified the competition between the USA and USSR, symbolizing technological and ideological superiority, which significantly influenced international relations during the Cold War.
Correct Answer:
B
— B. It escalated tensions and competition.
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Q. How do you convert: 'She asked, Are you coming?' into indirect speech? (2023)
A.
She asked if I was coming.
B.
She asked if I am coming.
C.
She asked if I come.
D.
She asked if I will come.
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Solution
In indirect speech, the present tense changes to past tense.
Correct Answer:
A
— She asked if I was coming.
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Q. How does gravitational potential energy (U) change when the distance from the center of the Earth increases? (2020)
A.
It increases
B.
It decreases
C.
It remains constant
D.
It becomes zero
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Solution
Gravitational potential energy increases as the distance from the center of the Earth increases.
Correct Answer:
A
— It increases
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Q. How does making connections improve reading comprehension? (2023)
A.
It distracts from the text
B.
It helps relate the text to personal experiences
C.
It increases reading speed
D.
It simplifies the vocabulary
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Solution
Making connections allows readers to relate the text to their own experiences, enhancing understanding and retention.
Correct Answer:
B
— It helps relate the text to personal experiences
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Q. How does the addition of a surfactant affect the surface tension of water?
A.
Increases surface tension
B.
Decreases surface tension
C.
No effect on surface tension
D.
Surface tension becomes negative
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Solution
Surfactants lower the surface tension of water by disrupting the cohesive forces between water molecules.
Correct Answer:
B
— Decreases surface tension
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Q. How does the addition of salt to water affect its surface tension?
A.
Increases surface tension
B.
Decreases surface tension
C.
No effect on surface tension
D.
Salt has no effect on water
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Solution
The addition of salt to water can increase the surface tension due to the ionic interactions that enhance the cohesive forces among water molecules.
Correct Answer:
A
— Increases surface tension
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Q. How does the addition of soap to water affect its surface tension?
A.
Increases surface tension
B.
Decreases surface tension
C.
No effect on surface tension
D.
Changes surface tension unpredictably
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Solution
The addition of soap decreases the surface tension of water by disrupting the cohesive forces between water molecules.
Correct Answer:
B
— Decreases surface tension
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Q. How does the author address counterarguments in the passage?
A.
By dismissing them as irrelevant
B.
By acknowledging them and providing rebuttals
C.
By agreeing with some points made by skeptics
D.
By avoiding the topic altogether
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Solution
The author acknowledges counterarguments and provides rebuttals, strengthening the overall argument.
Correct Answer:
B
— By acknowledging them and providing rebuttals
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