To reduce cracking during welding:
A) Fill craters when ending weld B) Use low-hydrogen electrodes
C) Use slower travel to maintain oval bead D) All of the above
D
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Figure 9-12
The accompanying figure shows the components needed to construct a(n) ____________________ control circuit.
Fill in the blank(s) with the appropriate word(s).
Normally open auxiliary contacts that control the starting sequence are often called permissive contacts because they permit action to take place.
Answer the following statement true (T) or false (F)
Before clipping, the beef calf should be completely dry.
Answer the following statement true (T) or false (F)
Determine the work done by an electric motor lifting an elevator and its occupants weighing 2200 lb through five floors; assume a distance of 15 ft between each floor. Compute the power requirements for the motor to go from the first to the fifth floor in
a. 5 s b. 8 s Express your results in horsepower (1 hp=550 ft lb/s).