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Units And Measurements Questions

Practice 28 Units And Measurements questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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28
Total Questions
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12
Easy
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Medium
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2
Hard
Practice by Exam:Physics(26)PHYSICS(1)General Science(1)

About Units and Measurements ā€” practice questions, PYQs & concepts

Units and Measurements is a frequently-tested topic on Physics, PHYSICS, General Science. ExamTest.live currently lists 28 Units and Measurements questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year ā€” every answer key is free, no sign-up required.

Units and Measurements weight in competitive exams

Across our Units and Measurements question bank, the largest sources are Physics (26), PHYSICS (1) and General Science (1). Click any exam chip above to drill down to that exam-specific question set.

How to use this page

  • Start easy: 12 easy Units and Measurements questions are available ā€” build fluency before moving up.
  • Target weak years: Use the year filter to focus on the most recent 2026 paper or older PYQs you have not attempted.
  • Time yourself: Every question shows the average solve time so you can benchmark your speed against other students.
  • Read every explanation: Even on questions you got right ā€” the explanation often surfaces a faster approach you can reuse.

All Units And Measurements Questions(1ā€“28 of 28)

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Q1mediummcqPhysicsCompetitive Exam Practice2026
0% accuracy
The unit of 'magnetic flux' is:
Q2mediummcqGeneral ScienceSSC CGL2026
0% accuracy
A ______ is one billionth of a metre.
Q3hardmcqPhysicsNEET (UG) 20172026
0% accuracy
A physical quantity of the dimensions of length that can be formed out of , and is:
Q4mediummcqPhysicsNEET 20192026
0% accuracy
In an experiment, the percentage of error occurred in the measurement of physical quantities and are and respectively. Then the maximum percentage of error in the measurement , where , will be:
Q5easymcqPhysicsNEET 2020 E12026
Taking into account of the significant figures, what is the value of ?
Q6easymcqPhysicsAIEEE2026
The respective number of significant figures for the numbers , and are:
Q7mediummcqPhysicsAIEEE2026
Two full turns of a screw gauge cover . Total divisions on circular scale is . Zero error is . While measuring, main scale reading is and circular scale is . The diameter of the wire is:
Q8easymcqPhysicsNEET (UG) 20242026
A force defined by acts on a particle at a given time . The factor which is dimensionless, if and are constants, is:
Q9easymcqPhysicsNEET (UG) 20242026
The quantities which have the same dimensions as those of solid angle are:
Q10mediummcqPhysicsNEET (UG) 20242026
In a vernier calipers, divisions of vernier scale coincide with divisions of main scale. If represents , the vernier constant (in ) is:
Q11easymcqPhysicsNEET 20232026
The errors in measurement which arise due to unpredictable fluctuations in temperature and voltage supply are:
Q12hardmcqPhysicsNEET 20232026
A metal wire has mass , radius and length . The maximum possible percentage error in the measurement of density will nearly be:
Q13mediummcqPhysicsNEET 20222026
The area of rectangular field (in ) of length and breadth after rounding off the value for correct significant digits is:
Q14mediummcqPhysicsNEET 20212026
A screw gauge gives the following readings when used to measure the diameter of a wire:Main scale reading: Circular scale reading: Given that on main scale corresponds to on the circular scale. The diameter of the wire from the above data is:
Q15mediummcqPhysicsNEET 20212026
If and respectively denote energy and gravitational constant, then has dimensions of:
Q16mediummcqPhysicsNEET 20212026
If force , acceleration and time are chosen as the fundamental physical quantities. Find the dimensions of energy.
Q17easymcqPhysicsNEET 2020 E12026
Dimensions of stress are:
Q18easymcqPhysicsNEET 2020 E12026
A screw gauge has least count of and there are divisions in its circular scale. The pitch of the screw gauge is:
Q19mediummcqPHYSICSNEET 20192026
The main scale of a vernier calliper has divisions/cm. divisions of the vernier scale coincide with divisions of the main scale. The least count of the vernier calliper is:
Q20easymcqPhysicsNEET (UG) 20182026
A student measured the diameter of a small steel ball using a screw gauge of least count . The main scale reading is and zero of circular scale division coincides with divisions above the reference level. If screw gauge has a zero error of , the correct diameter of the ball is:
Q21mediummcqPhysicsPhysics
3% accuracy
Consider the diameter of a spherical object being measured with the help of a Vernier callipers. Suppose its Vernier Scale Divisions (V.S.D.) are equal to its Main Scale Divisions (M.S.D.). The least division in the M.S. is and the zero of V.S. is at when the jaws of Vernier callipers are closed.
If the main scale reading for the diameter is and the number of coinciding vernier division is , the measured diameter after zero error correction, is:
Q22easymcqPhysicsPhysics
0% accuracy
A physical quantity is related to four observations , , and as follows:

The percentage errors of measurement in , , and are , , and respectively. The percentage error in the quantity is:
Q23mediummcqPhysicsPhysics
In an experiment, four quantities and are measured with percentage error , , and respectively. Quantity is calculated as follows: . The percentage error in is:
Q24mediummcqPhysicsPhysics
Density is . In a system where unit of length is and unit of mass is , the numerical value of density is:
Q25easymcqPhysicsPhysics
If the dimensions of a physical quantity are given by , then the physical quantity will be:
Q26easymcqPhysicsPhysics
The velocity of a particle at time is given by, where , and are constants. The dimensions of , , and are respectively:
Q27mediummcqPhysicsPhysics
Dimension of electrical resistance is:
Q28easymcqPhysicsPhysics
"Parsec" is the unit of:

Frequently Asked Questions

How many Units And Measurements questions are on ExamTest.live?ā–¼
We have 28 Units And Measurements questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
Are Units And Measurements MCQs free?ā–¼
Yes. All Units And Measurements questions, answers, and explanations on ExamTest.live are completely free. No account or subscription required.
Which exams include Units And Measurements questions?ā–¼
Units And Measurements questions are commonly asked in Physics, PHYSICS, General Science. You can filter by exam using the links above.
How do I practice Units And Measurements questions effectively?ā–¼
Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.