Micrometer Screw Gauge

Micrometer Screw Gauge

Parts of micrometer screw gauge

Read main scale

Answer

Read main scale

Answer

Read main scale

Reading vernier scale

Look for intersecting line:

So starting with the thirty (printed on the thimble) we count up to 33 before we get to the horizontal line we are reading from. So the barrel reads 12 mm and the thimble reads 0.33 mm.

Example

Reading = Main scale Reading + Vernier scale

Fill in the Blanks

Multiple Choice

What is the reading of the micrometer screw gauge?

• 8.59 mm

• 8.69 mm

• 8.519 mm

• 8.69 cm

Multiple Choice

Reading is

• 1.91 mm

• 1.91 cm

• 3.41 mm

• 3.41 cm

Multiple Choice

Reading is

• 7.20 mm

• 7.20 cm

• 9.20 cm

• 9.20 mm

Multiple Choice

Reading is

• 5.83 mm

• 5.83 cm

• 6.83 mm

• 6.83 cm

Go to the link below for zero error

https://youtu.be/mPci1ADkpPE

Multiple Select

Choose TWO measuring instruments that can use to measure thickness of a beaker.

• Ruler

• Ammeter

• Thermometer

• Vernier calipers

• Micrometer screw gauge

Multiple Choice

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

Multiple Choice

What is the reading of the micrometer screw gauge?

• -0.02 mm

• +0.02 mm

• -0.48 mm

Multiple Choice

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

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

Multiple Choice

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

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