WorksheetsFUN 101 Week 3 Review Hardware
Total questions: 10
Worksheet time: 5mins
Consider a bolt that is distorted and necked. Which of the bolt's following strength properties has been exceeded by the damaging force?
Its yield strength
Its tensile strength
Its prevailing torque
Its shear strength
Consider a bolt with a tensile strength of 120,000 psi. Which of the following situations will most likely cause a fatigue failure resulting in a fractured bolt?
A preload force of 3000 psi
A preload force of 30,000 psi
A preload force of 75,000 psi
A preload force of 90,000 psi
Technician A says tools are identified as metric or imperial by markings identifying their sizes, or by the increments on measuring instruments. Technician B says a micrometer should always be stored with its measuring surfaces touching in order to maintain its calibration. Who is correct?
Technician A
Technician B
Both Technician A and Technician B
Neither Technician A nor Technician B
Which of the following combinations of fasteners contains a bolt?
An externally threaded fastener with a nut on one end and the other end threaded into an iron casting
An externally threaded fastener that threads into a hole on a transmission
An externally threaded fastener clamping a frame crossmember using a nut
An externally threaded fastener that forms its own threads when inserted into a hole
Which of the following combinations of threads are strongest and most resistant to stripping?
Rolled coarse threads
Machine-cut fine threads
Machine-cut coarse threads
Rolled fine threads
Which of the following fasteners will support the most load?
3/8" UNC SAE Grade 2
M10 X 1.5 Class 10.9
M8 x 1.5 Class 8.8
7/16" UNF SAE Grade 5
Which of the following forces acting on a fastener is greatest when it is correctly preloaded?
Tensile load
Shear load
Proof load
Elastic load
Which of the following methods is used by threads to multiply rotational force into clamping force?
Threads act as wedges to produce a mechanical advantage
Threads act as a lever to produce a mechanical advantage
The employer, the supervisors, and the workers
Threads use an incline plane to produce a mechanical advantage
Which of the following tightening methods produces the most accurate preload force on a threaded fastener?
Using a torque stick
Using an accurately calibrated torque wrench
Technician judgement
My Cousin Vinny
Which of the following types of heads will a cap screw use if there is adequate access and space for a wrench or socket?
Internal hex head
External Torx head
A twelve-point head
Hex head
