Measurement tools with figures

Which tool can be used to measure the alignment of a rotor shaft or the plane of

rotation of a disc

A- Dial Indicator.

Which tool is used to find the center of a shaft or other cylindrical work?

A- Combination Set.

(Refer to Figure 46.) The measurement reading on the illustrated micrometer is

0.2851

Identify the correct statement:

A- An outside micrometer is limited to measuring diameters.

B- Tools used on certificated aircraft must be an approved type.

C- Dividers do not provide a reading when used as a measuring device.

C- Dividers do not provide a reading when used as a measuring device.

Which number represents the vernier scale graduation of a micrometer?

C- .0001

(Refer to Figure 48.) What does the micrometer read?

B- .3004

If it is necessary to accurately measure the diameter of a hole approximately 1/4 inch in diameter, the mechanic should use a…

C- small-hole gauge and determine the size of the hole by taking a micrometer reading of the ball end of the gauge.

(Refer to Figure 49.) The measurement reading on the micrometer is

C- .2792

What tool is generally used to calibrate a micrometer or check its accuracy

A- Gauge block.

What precision measuring tool is used for measuring crankpin and main bearing journals for out-of-round wear?

B- Micrometer Caliper

The side clearances of piston rings are measured with a….

B- thickness gauge.

How can the dimensional inspection of a bearing in a rocker arm be accomplished?

C- Telescopic gauge and micrometer.

Which tool can be used to determine piston pin out-of-round wear?

B- Micrometer caliper.

What tool is used to determine the correct drill bit size?

A- A hole gauge and micrometer

What may be used to check the stem on a poppet-type valve for stretch?

B- Micrometer

(Refer to Figure 47.) What is the measurement reading on the vernier caliper scale?

B- 1.436 inches

Which tool is used to measure the clearance between a surface plate and a relatively narrow surface being checked for flatness?

B- Thickness gauge.

What tool is generally used to set a divider to an exact dimension?

A- Machinist scale

The twist of a connecting rod is checked by installing push-fit arbors in both ends, supported by parallel steel bars on a surface plate. Measurements are taken between the arbor and the parallel bar with a…

C- thickness gauge