vernier callipers and screw gauge questions with solutions

Showing 1–10 of 62 questions

• MatchdifficultUnit dimension and errorvernier callipers and screw gauge

  Match each instrument specification in List I with the correct least count in List II.

  List 1

  1. 50 VSD = 48 MSD; 1 MSD = 0.5 mm

  2. 100 VSD = 97 MSD; 1 MSD = 1 mm

  3. Screw gauge: pitch = 0.4 mm, circular divisions = 80

  4. 25 VSD = 24 MSD; 1 MSD = 1 mm

  List 2

  1. 0.005 mm

  2. 0.020 mm

  3. 0.030 mm

  4. 0.040 mm

  Options

  • Option A

    P-2, Q-3, R-1, S-4

  • Option B

    P-3, Q-2, R-4, S-1

  • Option C

    P-2, Q-4, R-1, S-3

  • Option D

    P-1, Q-3, R-2, S-4

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• Multi-correctdifficultUnit dimension and errorvernier callipers and screw gauge

  A hollow tube is measured with a vernier calipers. Corrected external diameter is D and corrected internal diameter is d. Which statements are correct?

  Select all that apply

  • Option A

    Wall thickness = (D - d)/2

  • Option B

    Cross-sectional area of material = π(D² - d²)/4

  • Option C

    If equal positive zero error affects both raw diameter readings and the same correction is applied, D - d is unchanged.

  • Option D

    Wall thickness = D - d

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• IntegerdifficultUnit dimension and errorvernier callipers and screw gauge

  A screw gauge advances 1.8 mm in 6 complete rotations and has 60 circular divisions. Enter the least count in micrometres.

  Your answer

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• MCQdifficultUnit dimension and errorvernier callipers and screw gauge

  A direct vernier is constructed such that 50 vernier scale divisions are equal to 48 main scale divisions. One main scale division is 0.50 mm. A rod gives a main scale reading of 18.00 mm and the 37th vernier division coincides with a main-scale mark. If the positive zero error is +0.06 mm, the corrected diameter of the rod is:

  Options

  • Option A

    18.62 mm

  • Option B

    18.68 mm

  • Option C

    18.74 mm

  • Option D

    18.80 mm

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• MCQeasyUnit dimension and errorvernier callipers and screw gauge

  A vernier has 10 vernier divisions equal to 9 main-scale divisions. If 1 MSD = 1 mm, its least count is:

  Options

  • Option A

    1 mm

  • Option B

    0.9 mm

  • Option C

    0.1 mm

  • Option D

    0.01 mm

  Check answerShow answer
  Open question & full solution →
• IntegerdifficultUnit dimension and errorvernier callipers and screw gauge

  A spherical ball has corrected diameter 2.00 cm. Taking π = 3, enter its volume in cm³ multiplied by 10.

  Your answer

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• MCQeasyUnit dimension and errorvernier callipers and screw gauge

  In a screw gauge, when the two studs are in contact, the main-scale reference line coincides with the 5th division of the circular scale. The circular scale has 100 divisions and the pitch is 0.1 mm. While measuring the diameter of a sphere, the main-scale reading is 5 mm and the 50th circular-scale division coincides with the reference line. What is the corrected diameter of the sphere?

  Options

  • Option A

    5.045 mm

  • Option B

    5.055 mm

  • Option C

    5.450 mm

  • Option D

    5.550 mm

  Check answerShow answer

  JEE Mains 2026 2 April Evening Shift

  Open question & full solution →
• A/ReasyUnit dimension and errorvernier callipers and screw gauge

  Given below are two statements : one is labelled as Assertion(A) and the other is labelled as Reason (R). In the light of the above statements, choose the correct answer from the options given below :

  Assertion

  Assertion (A) : In Vernier calliper if positive zero error exists, then while taking measurements, the reading taken will be more than the actual reading.

  Reason

  Reason (R) : The zero error in Vernier Calliper might have happened due to manufacturing defect or due to rough handling.

  Options

  • Option A

    Both (A) and (R) are correct and (R) is the correct explanation of (A)

  • Option B

    Both (A) and (R) are correct but (R) is not the correct explanation of (A)

  • Option C

    (A) is true but (R) is false

  • Option D

    (A) is false but (R) is true

  Check answerShow answer

  JEE Mains 2024 27 Jan Evening Shift

  Open question & full solution →
• MCQdifficultUnit dimension and errorvernier callipers and screw gauge

  A hollow metal sphere has corrected external diameter 30.40 mm and corrected internal diameter 26.80 mm. Its metal volume is closest to:

  Options

  • Option A

    4.2 cm³

  • Option B

    4.6 cm³

  • Option C

    5.0 cm³

  • Option D

    5.4 cm³

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• MCQeasyUnit dimension and errorvernier callipers and screw gauge

  10 divisions on the main scale of a Vernier caliper coincide with 11 divisions on the Vernier scale. If each division on the main scale is of 5 units, the least count of the instrument is:

  Options

  • Option A

    1/2

  • Option B

    10/11

  • Option C

    50/11

  • Option D

    5/11

  Check answerShow answer

  JEE Mains 2024 01 Feb Morning Shift

  Open question & full solution →