Mechanical Fasteners

______ and Vernier calipers may be used to determine the type and size of the thread to be repaired.

• Rulers
• None of the answers listed
• Thread pitch gauges
• Tape measures

The higher the grade number of a bolt or nut, the higher the :

• flexibility of the bolt or nut
• weight of the bolt or nut
• None of the answers listed
• tensile strength of the bolt or nut

___________ are designed to secure parts that are under various tension and sheer stresses.

• RTV sealant
• None of the answers listed
• Fasteners
• Chemical welds

A _______ is a cylindrical piece of metal with a hexagon head on one end and a thread cut into the shaft at the other end.

• bolt
• screw
• None of the answers listed
• nut

Technician A states that some torque wrenches will give an audible signal such as a click or a beep when the specified torque has been reached. Technician B states that some torque wrenches will give a visual signal such as a light or a pin moving or clicking out when the specified torque has been reached. Who is correct ?

• Technician A
• Technician B
• Both
• Neither

Technician A states that when torqueing a bolt, the torque value will be specified in foot-pounds(lb-ft) inch-pounds(in-lb), or Newton-meters(Nm). Technician B states that the torque value is the amount of up and down force applied to a fastener by the torque wrench. Who is correct?

• Technician A
• Technician B
• Both
• Neither

Torque wrenches fall out of calibration over time or if they are not used properly, so they should be checked and calibrated:

• None of the answers listed
• at every use
• on a periodic basis
• only once a year