What precautions should be taken before handling printed circuit boards?
What will be an ideal response?
Always discharge yourself by touching the equipment frame to discharge any static electricity.
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Any fixed or stationary electric sign that is installed within a fountain must be at least how many feet inside the fountain, as measured from the fountain’s outside edge?
a. 5 feet (1.5 m) b. 6 feet (1.8 m) c. 7 feet (2.1 m) d. 8 feet (2.4 m)
All reinforcing shall conform to ASTM A-615, Grade 60.
Answer the following statement true (T) or false (F)
What opens and closes the valves in a reciprocating compressor?
A) Pressure difference across the valves B) Hydraulic valve lifters C) A cam shaft D) The piston pushes them open.
A photocell can supply only ____ the amount of base current needed to drive a transistor into saturation.
a. 1/10 b. 1/50 c. 1/100 d. 1/1000