vernier callipers and screw gauge questions with solutions

Showing 1–10 of 65 questions

• MCQeasyUnit dimension and errorvernier callipers and screw gauge

  A screw gauge has pitch 1 mm and 100 divisions on its circular scale. Its least count is:

  Options

  • Option A

    0.1 mm

  • Option B

    0.01 mm

  • Option C

    0.001 mm

  • Option D

    1 mm

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• Multi-correctdifficultUnit dimension and errorvernier callipers and screw gauge

  A student wants to determine the density of a small solid sphere as accurately as possible using a balance and a vernier calipers. Which steps are appropriate?

  Select all that apply

  • Option A

    Apply zero correction to the diameter readings.

  • Option B

    Measure the diameter in several orientations and use the mean corrected diameter.

  • Option C

    Use V = πd³/6 for the sphere volume.

  • Option D

    Use only the largest measured diameter to compensate for instrumental error.

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• MCQdifficultUnit dimension and errorvernier callipers and screw gauge

  A spherical metal ball has mass 65.4 g. Its diameter is measured using a vernier calipers with 20 VSD = 19 MSD and 1 MSD = 1 mm. The main scale reading is 24 mm, the 14th vernier division coincides, and the zero error is -0.10 mm. Taking π = 3.14, the density of the ball is closest to:

  Options

  • Option A

    7.8 g cm⁻³

  • Option B

    8.2 g cm⁻³

  • Option C

    8.6 g cm⁻³

  • Option D

    9.0 g cm⁻³

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• MCQmediumUnit dimension and errorvernier callipers and screw gauge

  Figure 1 shows the main-scale and Vernier-scale configuration before measurement. Figure 2 shows the configuration while measuring the diameter D of a tube. The measured value of D is:

  

  Options

  • Option A

    0.12 cm

  • Option B

    0.11 cm

  • Option C

    0.13 cm

  • Option D

    0.14 cm

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• MCQdifficultUnit dimension and errorvernier callipers and screw gauge

  A screw gauge has pitch p and 80 circular-scale divisions. Its least count is 0.004 mm. If the screw advances through 3.2 mm in a certain number of complete rotations, that number is:

  Options

  • Option A

    8

  • Option B

    10

  • Option C

    12

  • Option D

    16

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• MCQdifficultUnit dimension and errorvernier callipers and screw gauge

  A student measures the diameter of a pendulum bob with a vernier calipers and the distance from the point of suspension to the lower end of the bob with a metre scale. The corrected bob diameter is 2.64 cm and the suspension-to-lower-end distance is 102.8 cm. The effective pendulum length is:

  Options

  • Option A

    101.48 cm

  • Option B

    102.14 cm

  • Option C

    102.80 cm

  • Option D

    104.12 cm

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• Multi-correctdifficultUnit dimension and errorvernier callipers and screw gauge

  The least counts of two instruments are LC₁ = 0.02 mm and LC₂ = 0.005 mm. Which statements are correct?

  Select all that apply

  • Option A

    Instrument 2 has four times finer resolution than instrument 1.

  • Option B

    For a 1.00 mm measurement, one-LC fractional uncertainty is 2% for instrument 1.

  • Option C

    For a 1.00 mm measurement, one-LC fractional uncertainty is 0.5% for instrument 2.

  • Option D

    A smaller least count always guarantees absence of systematic error.

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• IntegerdifficultUnit dimension and errorvernier callipers and screw gauge

  A direct vernier has N VSD = (N - 4) MSD. If 1 MSD = 0.5 mm and the least count is 0.02 mm, find N.

  Your answer

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• MCQdifficultUnit dimension and errorvernier callipers and screw gauge

  A wire of length 2.0 m and resistivity 1.7 × 10⁻⁸ Ω m is measured by a screw gauge. The pitch is 0.5 mm and the circular scale has 100 divisions. The pitch-scale reading is 0.50 mm, the 26th circular division coincides, and the zero error is -0.01 mm. The resistance of the wire is closest to:

  Options

  • Option A

    0.096 Ω

  • Option B

    0.106 Ω

  • Option C

    0.116 Ω

  • Option D

    0.126 Ω

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• 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

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