單項(xiàng)選擇題Which of the statements listed concerning heat transfer is correct?()

A.Heat is always transferred at a constant rate
B.Heat transfer rate increases as temperature difference increases
C.The rate of heat transfer is not affected by temperature difference
D.The high temperature region is known as a heat sink


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2.單項(xiàng)選擇題The ()is used to measure power.

A.ammeter
B.voltmeter
C.wattmeter
D.frequency meter

3.單項(xiàng)選擇題If you burned your arm on a bare steam line, the most effective immediate treatment would be to()

A.wrap the arm in a tight bandage
B.soak the arm in hot salt water
C.cover the burn with petroleum jelly
D.put the burn in cold water

5.單項(xiàng)選擇題The company which is defined in the ISM Code means()

A.the owner of the ship
B.the manager who assumes the responsibility for operation of the ship
C.the bareboat charterer
D.All of the above