Chapter 9 Section B (General Textbook Unit 1)

What does a combination set include?

A center head, a protractor head, a stock head with level and scribe, and a steel scale.

What are thickness gauges used for?

Measuring small clearances using thin steel or brass blades

What is a micrometer caliper mainly used to measure?

The thickness of many items, including sheet metal and out-of-roundness of cylindrical objects.

What units does a micrometer caliper use?

Inches and millimeters.

What does a vernier scale on some calipers allow?

Measurements down to one ten-thousandth of an inch.

What can a Vernier caliper measure?

Inside and outside dimensions, with a range up to six inches.

What do dial indicators measure?

The amount of movement between parts and out-of-round conditions.

How are small hole gauges and telescoping gauges used?

Place the gauge in a hole, lock it at the diameter, remove it, then measure it with calipers.

1. The three heads normally included in a combination set are the:

                a.            ____________

                b.            ____________

                c.            ____________

                a.   Center

                b.   Protractor

                c.   Stock

2. What kind of calipers would be used to scribe a straight line a given distance from the edge of a piece of material? ____________

Hermaphrodite

3. The threads in a micrometer caliper have a pitch of ____________ threads per inch.

40

4. A standard micrometer will measure in increments of ____________ inch(es).

0.001

5. A vernier micrometer will measure in increments of ____________ inch(es).

0.0001

6. Read this micrometer caliper.

____________  inch(es)

0.238

7. Read this micrometer caliper

____________ inch(es)

0.265

8. Read this micrometer caliper.

____________ inch(es)

0.381

9. Read this vernier micrometer.

____________ inch(es)

0.2667

10. Read this vernier micrometer.

 ____________ inch(es)

.0.1334

11. ____________ calipers are used to make accurate measurements faster than can be made with a micrometer caliper.

Vermier

12. Read this English vernier caliper. ____________

1.135

13. Read this English vernier caliper. ____________

1.310

14. Read this English vernier caliper. ____________

2.265

15. Engine crankshaft runout can be checked with a ____________ .

Dial Indecator

16. A ____________ or ____________ gauge and an outside micrometer can be used to measure locations that are too small to use an inside micrometer.

Small Hole, Telescoping