Auto Tech Fasteners and Thread Repair
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
