Revision

With the help of vernier calipers, we can measure ______

• mass

• area

• length

• current

What is the reading on the vernier calipers?

• 6.42 cm

• 6.44 cm

• 6.43 cm

• 6.53 cm

There is no Zero error. What is the length measured?

• 1.23 cm

• 1.20 cm

• 1.3 cm

• 1.33 cm

What is the zero error on the Vernier calipers?

• 0.04 cm

• 0.06 cm

• -0.04 cm

• -0.06 cm

Least count of screw gauge is

• 0.01 cm

• 0.002 cm

• 0.1 cm

• 0.001 cm

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

• +0.02 mm

• -0.02 mm

• +0.2 mm

• -0.2 mm

It is more precise.

• Vernier caliper

• meter rule

• physical balance

• Screw gauge

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

• 15.59 mm

• 15.58 mm

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

• 6.57 mm

• 6.77 mm

• 6.65 mm

• 6.89 mm

What is the reading of the micrometer screw gauge?

• -0.48mm

• 0.48mm

• +0.02mm

• -0.02mm