• Inside Micrometer
• Micrometer
• Caliper
• Radius Gauge

What is the reading?

• 7.22 cm
• 7.72 cm
• 7.22 mm
• 7.72 mm

The diagram shows a micrometer.

Which reading is shown?

• 2.23 mm

• 2.73 mm

• 3.23 mm

• 5.23 mm

The micrometer screw gauge is completely closed. What is the zero error?

• + 0.04 mm
• - 0.04 mm
• + 0.46 mm
• - 0.46 mm

The micrometer screw gauge is completely closed. What is the zero error?

• +0.02 mm
• +0.2 mm
• -0.02 mm
• -0.2 mm

Refer to the diagram, the thickness of a wooden block, d is measured using a micrometer screw gauge. Which of the following is the correct reading?

Note: Diagram (a) shows a zero error; (b) diameter reading.

• 15.62 mm

• 15.50 mm

• 15.5 mm

• 15.5 cm

All statements below are correct, EXCEPT?

Note:

Observed reading means zero error is not taken into account.

Corrected reading means zero error is taken into account.

• zero error = + 0.02 mm

• observed reading = 2.37 mm

• corrected reading = 2.35 mm

• corrected reading = 2.39 mm

What is the reading of Micrometer Screw Gauge if there is a zero error of -0.02 mm?

• 5.87 mm

• 6.85 mm

• 6.87 mm

• 6.89 mm

What is the reading on the vernier calipers?

• 8.62 cm

• 8.62 mm

• 8.52 cm

• 8.63 cm

What is the reading on the vernier calipers?

• 1.05 cm

• 1.06 cm

• 1.16 cm

• 1.66 cm