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Important Physics Units and SI Units for SSC Railway | भौतिकी की महत्वपूर्ण इकाइयाँ
21 Aug 2026 • Units of Measurement

Important Physics Units and SI Units for SSC Railway | भौतिकी की महत्वपूर्ण इकाइयाँ

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Units of Measurement Question Bank

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Units of Measurement Questions

20 questions found
Q1

Which one of the following best expresses the central argument of the passage?

Answer
Quantitative indicators are useful for public policy, but they are incomplete representations that should inform rather than replace judgment.Open full set →
Q2

According to the passage, why can making an indicator a target create problems?

Answer
Institutions may begin improving measured performance without necessarily improving the underlying objective.Open full set →
Q3

Which one of the following assumptions is most important to the author's argument?

Answer
The objectives pursued by public institutions are often more complex than the indicators used to evaluate them.Open full set →
Q4

With reference to the passage, consider the following statements:
1. An improvement in a performance indicator necessarily demonstrates an equivalent improvement in the underlying objective.
2. Strategic responses to performance indicators do not always require deliberate dishonesty.
3. Introducing additional indicators can itself generate new problems.
4. Public policy should avoid quantitative evidence whenever qualitative evidence is available.
Which of the statements given above are consistent with the passage?

Answer
2 and 3 onlyOpen full set →
Q5

A government rewards police districts primarily according to reductions in recorded crime. Subsequently, some districts discourage citizens from formally registering minor offences. Which one of the following interpretations is most consistent with the reasoning of the passage?

Answer
Using recorded crime as a target may create incentives to improve the indicator without producing a corresponding improvement in public safety.Open full set →
Q6

Which one of the following can be most reasonably inferred from the passage?

Answer
A measurement system may influence the behaviour of the institution it is intended to observe.Open full set →
Q7

Why does the author reject the idea that simply creating more sophisticated indicators will completely solve the problem?

Answer
Any finite collection of indicators captures only selected dimensions of a complex social objective.Open full set →
Q8

Which one of the following statements would the author most likely agree with?

Answer
Evidence-based policymaking requires both measurement and critical interpretation of what measurements represent and omit.Open full set →
Q9

The author's statement that 'what is counted is rarely the whole of what matters' primarily implies that:

Answer
Important dimensions of social outcomes may not be fully captured by the indicators used to measure them.Open full set →
Q10

Which one of the following, if true, would most strengthen the central argument of the passage?

Answer
Hospitals evaluated primarily on the number of patients treated begin preferring simpler cases that can be processed quickly, while patients with complex conditions face greater difficulty obtaining treatment.Open full set →
Q11

What is the fundamental requirement for a measurement?

किसी मापन (Measurement) के लिए बुनियादी आवश्यकता क्या होती है?
Answer
Magnitude + Unit / परिमाण + मात्रकOpen full set →
Q12

Physical quantities are classified into Fundamental and Derived units based on which of the following?

भौतिक राशियों को किस आधार पर 'मूल मात्रक' और 'व्युत्पन्न मात्रक' में वर्गीकृत किया जाता है?
Answer
Measurement and Unit / माप और इकाई के आधार परOpen full set →
Q13

How many Fundamental Units (

मूल मात्रक) are there in Physics?भौतिकी (Physics) में मूल मात्रकों की कुल संख्या कितनी है?
Answer
Q14

Which of the following defines a 'Derived Unit' (

व्युत्पन्न मात्रक)?निम्नलिखित में से कौन 'व्युत्पन्न मात्रक' को परिभाषित करता है?
Answer
Units that depend on Fundamental Units / जो मूल राशियों पर निर्भर करते हैंOpen full set →
Q15

Radian is the supplementary unit used to measure which of the following?

रेडियन (Radian) का उपयोग निम्नलिखित में से किसे मापने के लिए किया जाता है?
Answer
/ ठोस कोण / / ठोस कोणOpen full set →
Q16

What is the supplementary unit used to measure a Solid Angle (

ठोस कोण - 3
Answer
को मापने के लिए किस संपूरक मात्रक का उपयोग किया जाता है? / को मापने के लिए किस संपूरक मात्रक का उपयोग किया जाता है?Open full set →
Q17

In which year was the 11th General Conference on Weights and Measures held that officially adopted the SI system?

माप और तौल का वह 11वाँ अधिवेशन किस वर्ष हुआ था जिसमें अंतर्राष्ट्रीय मात्रक पद्धति (SI System) को स्वीकार किया गया था?
Answer
Q18

Which of the following is an example of a Scalar Quantity (

अदिश राशि)?निम्नलिखित में से कौन सा एक अदिश राशि (Scalar Quantity) का उदाहरण है?
Answer
Mass / द्रव्यमानOpen full set →
Q19

Vector quantities possess which of the following properties?

सदिश राशियों (Vector quantities) में निम्नलिखित में से कौन से गुण होते हैं?
Answer
Magnitude and Direction both / परिमाण और दिशा दोनोंOpen full set →
Q20

Displacement, Velocity, and Force are examples of:

विस्थापन, वेग और बल किसके उदाहरण हैं?
Answer
Vector Quantities / सदिश राशियाँOpen full set →
QUICK PRACTICE

Quick Practice for Units of Measurement

Try these questions before opening the full quiz.

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Q1

Which one of the following best expresses the central argument of the passage?

  1. Quantitative indicators should be abandoned because they inevitably encourage institutions to manipulate data.
  2. Public institutions can be evaluated accurately if governments develop sufficiently sophisticated indicators.
  3. Quantitative indicators are useful for public policy, but they are incomplete representations that should inform rather than replace judgment.
  4. Qualitative evidence is inherently more reliable than quantitative evidence in evaluating public institutions.
Check answer
Answer: Quantitative indicators are useful for public policy, but they are incomplete representations that should inform rather than replace judgment.

The passage neither rejects quantitative measurement nor treats it as sufficient. The author argues that indicators are useful sources of evidence but capture only selected dimensions of complex objectives. They should therefore assist judgment rather than replace it.

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Q2

According to the passage, why can making an indicator a target create problems?

  1. Institutions may begin improving measured performance without necessarily improving the underlying objective.
  2. Institutions inevitably begin falsifying their official records.
  3. Citizens generally stop trusting all quantitative information.
  4. Governments lose the ability to compare different institutions.
Check answer
Answer: Institutions may begin improving measured performance without necessarily improving the underlying objective.

Once an indicator becomes a target, institutions have an incentive to improve the measured number. The number may therefore improve even when the underlying reality does not improve to the same extent.

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Q3

Which one of the following assumptions is most important to the author's argument?

  1. All social outcomes can ultimately be expressed numerically.
  2. The objectives pursued by public institutions are often more complex than the indicators used to evaluate them.
  3. Public officials usually attempt to manipulate performance statistics.
  4. Citizens are unable to understand sophisticated statistical indicators.
Check answer
Answer: The objectives pursued by public institutions are often more complex than the indicators used to evaluate them.

The author's reasoning depends on a distinction between an indicator and the broader reality it represents. If complex institutional objectives could be perfectly represented by indicators, the central problem identified in the passage would largely disappear.

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