A.built up propeller
B.solid propeller
C.controllable pitch propeller
D.suction back propeller
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A.ignition temperature
B.flash point
C.flammable range
D.convection index
A.freeze on the expansion valve seat and reduce the flow of liquid refrigerant
B.emulsify the oil in the condenser
C.freeze in the king valve
D.clog the oil trap
A.The colder seawater passing through the condenser tube bundles of the various stages increases evaporator vacuum
B.The amount of heated feed water discharged from the feed water heater after cndenser is increased
C.Fewer non-condensable gases are created by the flow of colder seawater
D.More seawater is allowed to pass through the flint stage overflow weir
A.bleeding refrigerant from the condenser
B.opening a drain petcock on the oil separator
C.condensing the water in the heat exchanger
D.using a dehydrator cartridge
A.drill holes through the heavy side of the impeller until it balances
B.weld counterweights to the light side of the impeller
C.remove metal from the heavy side by machining in a lathe
D.acid wash and serape the heavy side until it balances
最新試題
A salinity indicator is used to determine the ().
If you are given the job of adding hydraulic fluid to a mooring winch, and are not certain as to the type of fluid to use, you should ().
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?()
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is ().
A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by ().
When the steering gear is in operation, you should ().
If the relief valve on the discharge side of a hydraulic pump lifts, the cause could be ().
The rate of heat transfer from a hot region to a cold region is affected most by the ().
Thermostatic expansion valves can be adjusted for ().
Heavy wear in a particular area of the inner circumference of a packing ring may be caused by ().