How often should the refrigeration units cooling system be flushed and replaced?
A. Every year
B. Every 2 years
C. Every 3 years
D. Every 4 years
Answer: B
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A lateral is the intersection of two pipes at less than _____ degrees.
a. 30 b. 45 c. 60 d. 90
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?If the letter K is used, it refers to ____.
A. ?the normal carbon point B. ?the range of manganese C. ?silicon-killed, oxidized steel D. ?an electrode
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Oil ________ is controlled by using a windage tray in the oil pan
A) Jumping B) Foaming C) Burning D) Fretting
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Lever-type grease guns can develop pressures up to _____
a. 1,000 psi b. 3,000 psi c. 5,000 psi d. 10,000 psi
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