Describe the type of guards that portable circular saws should have
What will be an ideal response?
Portable circular saws should be equipped with guards above and below the base plate or shoe. The upper guard must cover the saw to the depth of the teeth, except for the minimum allowance needed for bevel cuts. The lower guard must cover the saw to the depth of the teeth except for the minimum allowance needed for contact with the work and retraction from the work.
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PROBLEM 3.17 The solid shaft shown is formed of a brass for which the allowable shearing stress is 55 MPa. Neglecting the effect of stress concentrations, determine the smallest diameters dAB and dBC for which the allowable shearing stress is not exceeded.
_____ occur when opposing operating angles of two Universal joints cancel the oscillations developed by the individual Universal joint.
A. Right angles B. Installation angles C. Oscillating angles D. Canceling angles
A tank has a capacity of 100 cubic feet.How many gallons of water can it hold?
Fill in the blank(s) with the appropriate word(s).
Electronic overload relays employ a current ____ to sense the motor current.
A. diode B. transformer C. capacitor D. varistor