輪機英語章節(jié)練習(2019.09.20)

來源：考試資料網(wǎng)

1 If ignited, which of the listed materials would be a class "B" fire?（）

2 High-speed rotation in a centrifugal purifier can produce a force （） the force of gravity.

3 Compared to a constant pitch propeller, a controllable pitch propeller（）.

4 Before using or operating any equipment, you should first （） its manual thoroughly and understand its contents（）.

5 An increase in load on a diesel engine results in （） of speed of the crankshaft.

6 In a （） boiler the hot gases from the furnace pass through the tubes while the water is on the outside.

7 If a liquid sight flow indicator in a refrigeration system shows gas bubbles in motion passing inside of the glass, there is （）.

8 The main function of tie rods in the construction of large, low speed diesel engines is to（）.

9 （）is not installed on the emergency switchboard.

10 Which of the following is true?（）