A.vapor feed heater
B.air ejector condenser
C.saltwater heater
D.distillate cooler
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A.ballast tanks
B.sludge tanks
C.machinery space bilges
D.cargo hold bilges
A.excessive drive motor speed
B.excessive pump discharge pressure
C.too low of a tilting box angle
D.insufficient drive motor speed
A.high pressure liquid
B.low pressure vapor
C.high pressure vapor
D.low pressure liquid
A.propeller hub
B.lignum vitae
C.shaft packing
D.labyrinth seal
A.liquid
B.dry saturated gas
C.wet saturated gas
D.superheated vapor
最新試題
A grease gun is generally used to lubricate a （）.
The temperature differential occurring between the inlet temperature of the fluid to be cooled and the outlet temperature of the cooling medium in a shell-and-tube heat exchanger is greatest in which of the flow designs listed?（）
An increasing head pressure in a refrigeration system, without any corresponding change in the cooling water inlet temperature, would probably be caused by （）.
A salinity indicator is used to determine the （）.
An excessive charge of refrigerant in an air-cooled refrigeration system can cause （）.
Who is responsible for ensuring that someone is assigned to close the watertight doors in an emergency?（）
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.
Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by （）.
The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its （）.
If the viscosity of the liquid being transferred remains constant as the discharge pressure increases, the rotary pump （）.