?How many tack welds are needed to hold a pipe joint in alignment for welding?
A. ?4, one at the 12:00, 3:00, 6:00, and 9:00 o'clock positions.
B. ?5 to 6
C. ?It depends on the size of the tack welds.
D. ?The number will vary depending on the pipe's diameter.
Answer: D
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Armed with modern weapons, which eastern African kingdom successfully fought off an invading Italian force in 1896?
a. Sudan b. Ethiopia c. Madagascar d. Zanzibar
How can a mentor help the beginning technician?
A) Help trainee practice procedures B) Allow trainee to borrow tools C) By making loans D) Ride sharing
Which of the following modifications would alleviate refrigerant migration in a long-line system?
A) Reducing refrigerant charge B) Adding a liquid line solenoid C) Removing any compressor crankcase heaters D) Adding a compressor hard-start kit