A carbon steel ring, with a piece of soft metal bolted across the middle of the ring is a _____
a. steam target
b. test tree
c. slip blind
d. blind flange
a
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Why is a traditional room thermostat not the best choice for controlling an infrared heater?
a. It must be mounted high on a wall. b. The bimetal element is too slow to react to radiant heat. c. It is incompatible with the heater’s control circuit voltage. d. Radiant heat may affect thermostat operation.
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The inverted bucket trap can handle high-pressure steam and resists damage from pressure surges and _____.
a. wet steam b. corrosive chemicals c. hard water d. water hammer
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Define a servo brake system.
What will be an ideal response?
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Who shall participate in fire drills?
A. all occupants B. volunteer occupants only C. occupants of every other floor D. none of the above
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