What type of circuit breaker provides a time-delay feature, much like a time-delay fuse?
a. TDR
b. DFR
c. Duel-element
d. HACR
d. HACR
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Automatic changeover thermostats have a minimum interlock setting, also known as the _____.
a. deadband b. compensator c. differential d. evaporator
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Ten kg of copper (use Cp,cu = 0.39 kJ/kg·K) at 200°C are submerged in 50 kg of water at 10°C in an insulated container. After a long time, the temperature will be nearest:
A) 35.5°C B) 28.5°C C) 20.5°C D) 13.5°C
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Tundra swans nest where the name suggests, on the arctic tundra of Alaska and Canada
a. True b. False Indicate whether the statement is true or false
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Which structure secretes melatonin?
A) anterior pituitary gland B) superior colliculus C) posterior pituitary gland D) hypothalamus E) pineal gland
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