Upper Engine class chapter 3

Which of the following is a metric bolt?

A. M12x1.5 b. 5/16 - 18 c. 1/2 - 20 d. 8 millimeter

The grade of a fastener, such as a bolt, is a measure of its_________________.

A. Tensile strength b. Hardness c. Finish d. Color

Technician A says that the diameter of a bolt is the same as the wrench size used to remove or install the fastener. Technician B says that the length is measured from the top of the head of the bolt to the end of the bolt. Which technician is correct?

Neither A nor B

A bolt that requires a 1/2 inch wrench to rotate is usually what size when measured across the threads?

a. 1/2 inch B. 5/16 inch c. 3/8 inch d. 7/16 inch

All ofthe following are types of clips except_____________.

a. E-clip B. Cotter c. C-clip d. Internal

What type of fastener is commonly used to retain interior door panels?

a. E-clips B. Christmas tree clips c. External clips d. Internal Clips

The thread pitch of a bolt is measured in what units?

a. Millimeters b. Threads per inch c. Fractions of an inch D. Both A and B

A screw that can make its own threads when installed is called a_____________screw.

a. Sheet metal b. Tapered c. Self-tapping D. Both a and c

The marks (lines) on the heads of bolts indicate ______________.

a. Size b. Grade c. Tensile strength D. Both b and c

A bolt that is threaded into a casting is often called a_____________.

a. Stud B. Cap screw c. Block bolt d. Crest bolt