Accumulators are designed to _____
A) cool hydraulic fluid
B) store fluid under pressure until the system needs it
C) clean hydraulic fluid
D) prevent pressure buildup in the system
B
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The simplest type of fire alarm system is the _____.
a. coventional hardwired system b. conventional multiplex system c. digital system d. analog system
A seat belt pretensioner is __________
A) Used to force the occupant back into position against the seat back in the event of a collision B) Used to remove slack from the seat belt in the event of a collision C) A device that contains an explosive charge D) All of the above
The stems on manual stem service valves should be turned with:
A) Either an adjustable jaw wrench or a pair of pliers. B) A refrigeration service valve wrench only. C) Either a refrigeration service valve wrench or an adjustable jaw wrench. D) Either a refrigeration service valve wrench or a pair of pliers.
The health and environmental concerns caused by the breakdown of the ozone layer include:
A. Increase in skin cancers B. Suppression of the human immune response system C. Increase in cataracts D. All of the above are correct