Question 1

One kilogram equals 1000 cubic centimeters (cc).

Accepted Answer

One kilogram is a measure of mass, while cubic centimeters (cc) measure volume. They are not directly equivalent.

Question 2

Technician A says a vernier caliper can measure inside diameter and outside diameter. Technician B says measurements in auto industry are commonly made in hundredths of an inch. Who is right?

Accepted Answer

A vernier caliper can measure both inside and outside diameters. Measurements in the auto industry are commonly made in thousandths of an inch, not hundredths.

Question 3

Name two common measurements in automotive repair that are made with feeler gauges.

Accepted Answer

Feeler gauges are commonly used to measure such things as:
•valve clearance
•piston ring side clearance
•crankshaft end play
•gaps of spark plugs, piston rings, and ignition points

Question 4

All of the following are types of dial indicator faces EXCEPT _____.

Accepted Answer

Contiguous is not a valid type of dial indicator face. The other options (continuous counterclockwise, balanced, and continuous clockwise) are valid types.

Question 5

Technician A says a small-hole gauge is also referred to as a transfer gauge. Technician B says the small-hole gauge is used on valve guides. Who is correct?

Accepted Answer

Technician A is correct. A small-hole gauge is also referred to as a transfer gauge as it is used to transfer the internal dimension of a small hole onto a micrometer or similar tool. Technician B is also correct. A small-hole gauge is commonly used on valve guides to measure the inside diameter.

Question 6

Convert 5 inches to millimeters.

Accepted Answer

The answer of Convert 5 inches to millimeters....

Question 7

Technician A says the threads on the micrometer spindle have 40 threads per inch. Technician B says one complete turn of the micrometer thimble moves the spindle 0.025 inch. Who is correct?

Accepted Answer

Technician A is correct that the micrometer spindle has 40 threads per inch. Technician B is correct that one complete turn of the micrometer thimble moves the spindle 0.025 inch. Therefore, both technicians are correct.

Question 8

Metric micrometers are being discussed. Technician A says the hub is graduated in millimeters and half millimeters. Technician B says each revolution of the thimble equals one millimeter on the hub. Which technician is right?

Accepted Answer

The answer of Metric micrometers are being discussed. Technician A...

Question 9

What is the metric unit of weight?

Accepted Answer

The answer of What is the metric unit of weight?...

Question 10

Technician A says micrometers are used primarily to measure inside diameters. Technician B says telescoping gauges are used with micrometers to measure cylinders and bearing bores. Who is right?

Accepted Answer

Technician B is correct because telescoping gauges are indeed used in conjunction with micrometers to measure the inside diameters of cylinders and bearing bores. Technician A is incorrect because micrometers are versatile tools used for measuring both inside and outside diameters, as well as depths, depending on the type of micrometer being used.

Question 11

On a metric ruler, hundredths are called millimeters.

Accepted Answer

On a metric ruler, hundredths of a meter are not called millimeters; they are called centimeters. Millimeters are the thousandths of a meter.

Question 12

A digital caliper with an LCD measures either English or metric units to an accuracy of 0.0005.

Accepted Answer

A digital caliper with an LCD can measure both English and metric units with an accuracy of 0.0005.

Question 13

Measurements are being discussed. Technician A says a magnifying glass is sometimes helpful when reading a vernier scale. Technician B says 24.5 mm equals one inch. Which technician is correct?

Accepted Answer

Technician A is correct because a magnifying glass can indeed be helpful in reading the fine graduations of a vernier scale more accurately. Technician B is incorrect because 1 inch equals 25.4 mm, not 24.5 mm.

Question 14

Technician A says one advantage of micrometers is they are clear and easy to read. Technician B says micrometers are consistent and accurate. Which technician is right?

Accepted Answer

Both technicians are correct. Micrometers are designed to be clear and easy to read, often featuring digital or finely marked analog scales. They are also highly consistent and accurate, making them a preferred tool for precise measurements in various technical fields.

Question 15

A gauge standard is used to calibrate a micrometer.

Accepted Answer

A gauge standard is a device used to check and calibrate the accuracy of measuring instruments like micrometers. Therefore, gauging standards are used to calibrate micrometers.

Question 16

The metric measurement of volume is the liter.

Accepted Answer

The liter is the standard metric measurement of volume.

Question 17

What is plastigage?

Accepted Answer

The answer of What is plastigage?...

Question 18

If a micrometer spindle must be moved a long way to adjust it, roll the ____ on your arm or hand.

Accepted Answer

The thimble is the part of a micrometer that is designed to be rotated to move the spindle. Rolling it on your arm or hand is a common technique for quickly adjusting the spindle over a long distance.

Question 19

What is the metric equivalent of the English system measurement, foot-pounds, used for torque readings?

Accepted Answer

The answer of What is the metric equivalent of the...

Question 20

Technician A says a micrometer may have a digital readout. Technician B says a micrometer may have a decimal equivalent chart stamped on it. Who is correct?

Accepted Answer

Both technicians are correct. Micrometers may have a digital readout and/or a decimal equivalent chart stamped on them to assist with measurements.

Quiz 6: Micrometer Practice