Endothermic fire-stopping material reacts to heat by _____.
a. expanding
b. releasing water
c. releasing carbon dioxide
d. contracting
Answer: B
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NFPA 101® contains _____.
a. requirements for all electrical work performed in a building b. requirements for residential and commercial installation of fire alarm systems and equipment c. requirements for life safety d. requirements for the testing, operation, installation, and periodic preventive maintenance of fire alarm systems
The most important tool for supervising a high-force cable pull is _____.
a. a crane to lift cable reels b. a sufficient amount of cable c. the correct cable lubricant d. working communications equipment
During a fuel pressure test the technician notices that the system does not hold pressure for more than 10 minutes with the engine off. What could be the cause?
A) The fuel filter installed backwards B) A bad fuel pressure regulator C) A loose MAF hose D) A leaking throttle plate
Why won't reciprocating compressors handle liquid refrigerant as well as scroll and rotary types?
What will be an ideal response?