Torque Wrenches and Their Uses Flashcards
An electrician on the jobsite uses a pulling motion to apply force to a torque wrench. Is this the correct way to apply torque to a fastener?
A) Yes
B) No
A) Yes
The ___ style torque wrench was the first type invented and commercially sold
A) Beam
B) Dial
C) Clicker
D) Electronic
A) Beam
The ___ style is the most common type of torque wrench used today.
A) Beam
B) Dial
C) Clicker
D) Electronic
C) Clicker
On a dial wrench, always check the dial needle to make sure it is set at 0.
A) True
B) False
A) True
Electronic torque wrenches indicate a ___ accuracy.
A) +/- 1%
B) +/- 2%
C) +/- 4%
D) +/- 5%
B) +/- 2%
Dial wrenches usually have a fixed drive.
A) True
B) False
A) True
A(n) ___ style torque wrench uses a ball detent and spring.
A) beam
B) clicker
C) dial
D) electronic
B) clicker
Major manufacturers recommend that torque wrenches should be recalibrated ___. (Choose all that apply)
A) after every use
B) every 5,000 cycles
C) once a year
B and C
It is permissible to leave an adjustable (clicker style) torque wrench wound up during storage.
A) True
B) False
B) False
a 250-foot-pound wrench is permitted to be set a 5 foot-pounds.
A) True
B) False
B) False
It is recommended that all clicker style wrenches be stored at their lowest setting on the scale.
A) True
B) False
A) True
What length of cheater bar is needed to obtain 300 foot-pounds from a 250 foot-pound torque wrench.
A) 2 feet
B) 3 feet
C) 5 feet
D) A cheater bar should never be used
D) A cheater bar should never be used
Torque screwdrivers generally have a cam-over feature
A) True
B) False
A) True
Torque screwdrivers are well suited for precision work because fasteners cannot be over torqued
A) True
B) False
A) True
What are three disadvantages of torque screwdrivers?
I) Limited maximum torque
II) Limited to one scale
III) Requires frequent calibration
IV) Not suitable for precision work
V) Expensive considering small torque range
I, II, and V
What is the sweet spot of a torque wrench?
A. Between 10% and 30% of the maximum scale
B. Between 20% and 60% of the maximum scale
C. Between 40% and 80% of the maximum scale
D. Between 70% and 100% of the maximum scale
C. Between 40% and 80% of the maximum scale
A(n) ___ torque wrench uses a strain gauge to measure torque.
A. beam style
B. clicker style
C. dial style
D. electronic style
D. electronic style
A peak hold needle feature is a key advantage to what type of torque wrench?
A. Beam Style
B. Clicker Style
C. Dial Style
D. Slip
C. Dial Style
From the list below, select three disadvantages of the torque screwdriver.
I. Have a limited maximum torque
II. Limited to one scale
III. Need to be calibrated often
IV. Not suitable for precision work
V. Relatively expensive considering their limited torque range
A. I., II., III.
B. I., II., VI.
C. I., II., V.
D. II., IV., V.
C. I., II., V.
Match the following terms with their definitions.
I) A torque wrench that emits an audible “click” when the desired torque is reached.
II) Devices that increase the torque applied by an operator, often used in limited space with high torque requirements.
A) Clicker style torque wrench
B) Torque multipliers
I - A
II - B
From the list below, select those three things you should do when storing a dial type torque wrench.
I. Always wind down to the lowest setting before storage.
II. Keep all torque instruments clean and dry.
III. Make sure needles do not contact dial face or crystal.
IV. Remove batteries.
V. When not in use, store the tool in the protective box.
A. I., II., III.
B. II., III., IV.
C. II., III., V.
D. II., IV., V.
C. II., III., V.
For maximum accuracy, a torque wrench should only be used for ranges between ___ and ___ of its maximum rated value.
A. 10% / 50%
B. 20% / 75%
C. 40% / 80%
D. 80% / 100%
C. 40% / 80%
What is the recommended frequency of calibration for torque tools according to Snap-on Tools?
A. Once every six months
B. Every 5,000 cycles or once a year, whichever comes first
C. Every 10,000 cycles
D. Every 2 years
B. Every 5,000 cycles or once a year, whichever comes first
Electronic torque wrenches indicate a plus/minus ? accuracy.
A. 1%
B. 2%
C. 4%
D. 5%
B. 2%
A torque wrench should never be used in a “break-away” situation; a breaker bar or wrench should be used instead.
A) True
B) False
A) True
A ___ is a torque device with a planetary gear system used to create output revolutions greater than the input revolutions applied.
A. torque divider
B. torque multiplier
C. torque quad-4x
D. torque rev-4x
B. torque multiplier
What should be worn at all times when using any hand tool, including torque wrenches?
A. Hearing protection
B. Safety glasses or goggles
C. Safety helmet
D. Steel-toe boots
B. Safety glasses or goggles
Torque tools require high maintenance due to their frequent use.
A) True
B) False
B) False
Is it OK to use an oversized torque wrench to break loose small tight bolts?
A. No, never
B. Only in low torque operations
C. Yes
A. No, never
Mechanical torque wrenches are typically calibrated from 20% to 100% of full scale.
A) True
B) False
A) True
