Electrical Torque Applied

Question 1

For the first pass, torque to a maximum of ___ of the final torque value in accordance with the torque sequence.

A) 30%
B) 60%
C) 90%

Answer 1

A) 30%

Question 2

For the second pass, torque to a maximum of ___ of the final torque value in accordance with the torque sequence.

A) 30%
B) 60%
C) 90%

Answer 2

B) 60%

Question 3

When torquing, you can always assume that you will torque the nut of the fastener.

A) True
B) False

Answer 3

B) False

Question 4

Where a tightening torque is indicated as a numerical value on equipment or in the installation instructions provided by the manufacturer, a ___ torque tool shall be used to achieve the indicated torque value unless the equipment manufacturer has provided installation instructions for an alternative method of achieving the required torque.

A) approved
B) calibrated
C) industry recognized
D) listed

Answer 4

B) calibrated

Question 5

In general, the recommended tightening torque tables that can be found in the NEC can be used where the manufacturer has not supplied the required torque ratings for equipment.

A) True
B) False

Answer 5

A) True

Question 6

Tightening sequences are specified to ensure that bolts are tightened all at once.

A) True
B) False

Answer 6

B) False

Question 7

When using a torque wrench, ___?

A. always pull the wrench toward you
B. always push the wrench away from you
C. it does not matter if you push or pull the torque wrench
D. use a very quick motion

Answer 7

A. always pull the wrench toward you

Question 8

An insufficient level of torque can ___?

A. burn off the conductor insulation
B. cause excessive heat at the termination
C. create a high resistance
D. all of the above

Answer 8

D. all of the above

Question 9

Match the following statements with the appropriate concepts

I) Marking bolt assemblies with a marker
II) Recommended hardware and torque requirements
III) Tightening bolts individually rather than all at once
IV) Torque sequence for flanges with 4 to 32 bolts

A) minimizes preload scatter within the joint
B) section 5
C) criss-cross pattern
D) indicates torque application process

Answer 9

I - D
II - B
III - A
IV - C

Question 9

Which sequence should be followed when torquing bolts in a flange pattern?

A. Follow a criss-cross sequence
B. Start from the center and move outward
C. Tighten all bolts simultaneously
D. Tighten bolts in a random pattern

Answer 9

A. Follow a criss-cross sequence