Why do some technicians recommend using a separate refrigerant tank when purging hoses?
A) To continue refrigerant flow B) To preserve coolant
C) To preserve system charge D) To maintain pressure levels
C
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Construction site investigation consists of two parts: (i) surface investigation and (ii) subsurface investigation. Is investigating the site's natural drainage system and the site's likelihood to incur flooding a part of surface investigation or subsurface investigation?
What will be an ideal response?
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Examples of personal protective devices include:
A) Ear plugs B) Hard hat C) Dust respirator D) All of the above
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What is the current minimum ABS requirement for a trailer brake system?
A. 2S/1M B. 2S/2M C. 4S/2M D. 4S/3M
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In the cooling mode, the reversing valve is typically _____
a. bypassed b. energized c. de-energized d. reversed
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