Auto Tech Fasteners and Thread Repair

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Which type of nut is used with a cotter​ pin?

Castle Nut

Which of these is NOT a type of lock​ nut?

Castle nut and cotter pin Nylon ring Distorted All of these are locking nuts

All of the following are types of clips EXCEPT​ ________

Cotter

Which of these may be used to restore damaged threads on a​ bolt?

Die

Which type of washer is used to provide an even clamping​ force?

Flat washer

The strength or classification of a bolt is known as​ ________

Grade

The marks​ (lines) on the head of a bolt indicate​ ________

Grade and Tensile strength

Which of the following is a metric​ bolt?

M12 times ×1.5

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 Technician A or B

Two technicians had different views on the identification of bolts. Technician A stated that bolts are identified by the size of the head. Technician B stated that bolts are identified by the size of the wrench used to remove or install the bolt. Which of the following statements about the scenario is​ true?

Neither technician​ A's nor​ B's assessment is accurate.

Metric bolt grade is indicated by​ ________.

Numbers on the head

Which of the following items is used on the threads of a lock nut to keep it from​ loosening?

Nylon Strip

​________ is a lightweight lubricant similar to​ kerosene, which soaks into small crevices in the threads by capillary action.

Penetrating Oil

Clevis, taper,​ roll, and cotter are different types of​ ________.

Pins

The number of threads per inch in a threaded fastener is called​ ________.

Pitch

​________ are constructed of spring steel and are used to attach parts without using a threaded fastener.

Snap Rings

A​ ________ is used to cut threads in holes drilled to an exact size.

Tap

Technician A says that for best​ results, loosen the fastener immediately after spraying it with penetrating oil. Technician B says that rusted fasteners may be loosened by tapping with a hammer. Which technician is​ correct?

Technician B only

The grade of a​ fastener, such as a​ bolt, is a measure of its​ ________.

Tensile Strength

​Self-tapping, solid-bushing, and​ key-locking are the three categories of​ ________.

Threaded inserts

When ordering a bolt you will need to determine

bolt​ diameter, thread​ pitch, and bolt length.

When ordering a bolt you will need to determine.

bolt​ diameter, thread​ pitch, and bolt length.

Which of the following materials is used in SAE grade 5​ bolts?

medium-carbon steel, quenched and tempered

Which of the following items will most likely return a damaged hole to its original size by replacing part of the surrounding​ casting?

threaded inserts


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