What type of material comprises a coil spring?
What will be an ideal response?
A coil spring is a rod of steel that has been shaped in a spiral.
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The total movement of the cam follower in one complete revolution of the cam is called:
a. dwell b. displacement c. rise d. fall
PROBLEM 3.82 A 1.5-m-long tubular steel shaft (G ? 77.2 GPa) of 38-mm outer diameter d1 and 30-mm inner diameter d2 is to transmit 100 kW between a turbine and a generator. Knowing that the allowable shearing stress is 60 MPa and that the angle of twist must not exceed 3°, determine the minimum frequency at which the shaft can rotate.
What causes residual flux?
What will be an ideal response?
Which of the following is not a function of bones?
a. form red blood cells c. store needed minerals b. aid in locomotion d. replace muscles and ligaments