Glass pipe joints are similar in design to
A. hubbed cast iron joints
B. plastic pipe joints
C. hubless cast iron joints
D. threaded steel joints
Answer: C
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_____ is done by holding the plumb rule at an angle on the edge of the corner of the brick at the racking point to check the alignment.
A. Returning B. Racking back C. Tailing a lead D. Holding the line
When preparing a steam boiler for wet storage, the boiler is _____.
a. valved off from the remainder of the system b. filled with treated water below its normal water line c. filled with treated water to its normal water line d. valved open to the remainder of the system
Water obtained from shallow wells, streams, lakes, or reservoirs is called
A. ground water B. cistern C. gray water D. surface water
Which of the following defines a galvanic device?
A. produces voltage by chemical action B. induces voltage by inductance C. induces a static charge D. stores a capacitive charge