Micrometer Screw Gauge Quiz

What is the sensitivity of a micrometer screw gauge compared to a vernier caliper?

• 0.01 cm

• 0.1 cm

• 0.1 mm

• 0.001 cm

Which part of the micrometer screw gauge is responsible for applying the correct pressure to avoid compressing the object?

• Anvil

• Spindle

• Ratchet knob

• Thimble

What is the function of the thimble in a micrometer screw gauge?

• To read the main scale

• To measure the diameter

• To lock the spindle

• To move the spindle

How do you calculate the reading of a micrometer screw gauge?

• Add the main scale and thimble scale readings

• Subtract the thimble scale from the main scale

• Divide the main scale by the thimble scale

• Multiply the main scale by the thimble scale

What is the reading of the main scale if the thimble scale reads 0.3 mm and the total reading is 5.8 mm?

• 5.8 mm

• 5.0 mm

• 5.3 mm

• 5.5 mm

What does a positive zero error indicate in a micrometer reading?

• The zero mark coincides with the reference line

• The zero mark is above the reference line

• The zero mark is not visible

• The zero mark is below the reference line

How do you correct a negative zero error in micrometer readings?

• Add the zero error to the reading

• Subtract the zero error from the reading

• Ignore the zero error

• Multiply the reading by the zero error

If the zero error is -0.01 mm and the reading is 5.73 mm, what is the correct reading?

• 5.71 mm

• 5.73 mm

• 5.74 mm

• 5.72 mm

What is the correct reading if the zero error is +0.02 mm and the measured reading is 2.12 mm?

• 2.08 mm

• 2.12 mm

• 2.14 mm

• 2.10 mm

In the context of micrometer readings, what does a zero error of -0.03 mm imply?

• The reading is too high by 0.03 mm

• The reading is irrelevant

• The reading is too low by 0.03 mm

• The reading is accurate