輪機英語單項選擇題每日一練(2019.07.25)

來源：考試資料網(wǎng)

1 A simple pumping system consists of a suction branch, a pump and （）.

2 Thermostatic expansion valves can be adjusted for （）.

3 A pressure drop through the refrigerant liquid line may cause （）.

4 All of the following operating characteristics are listed on the name-plates of motors used aboard ship except the（）

5 The power output of a turbocharged diesel engine will drop if the cooling water flow through the after-cooler is interrupted because the （）.