更多"Compressed air is used on board shi"的相关试题:
[单项选择]Compressed air is used on board ship （）.
A. for starting diesel engines
B. in pneumatic control system
C. in pneumatic tools
D. All the above are true
[单项选择]Channel 13 is primarily used for ship to ship communication. Channel 13 is also authorized for（）.
A. coast to aircraft operational communications
B. aircraft to ship operational communications
C. lock & bridge communications
D. aircraft to ship navigational communications
[单项选择]Air line lubricators are used in compressed air systems to lubricate （）.
A. the suction and discharge valves
B. tools and equipment served by compressed air
C. air line reducing valves
D. all of the above
[单项选择]A dirty intercooler on the ship service air compressor will result in （）.
A. decreased compression ratio
B. higher than normal power consumption
C. un-loader malfunction
D. water in the lubricating oil
[单项选择]If an air compressor is used to supply air primarily to the combustion control system and other pneumatic controllers, the entire system is known as the （）.
A. control air system
B. forced draft air system
C. supply air system
D. ships service air system
[单项选择]A carling is used aboard ship（）.
A. as a connecting strap between the butted ends of plating
B. to stiffen areas under points of great stress between beams
C. to prevent the anchor from fouling when the brake is released
D. to provide an extra heavy fitting in a heavy lift cargo rig
[单项选择]Fire extinguishers used on ship’s are numbered by size I through V，with I being（）.
A. used for electrical fires only
B. the smallest
C. the most accessible
D. the most effective
[单项选择]She used（）all her clothes there.
A. buy
B. to buying
C. buying
D. to buy
[单项选择]When hitting a solid object such as ship or an airplane,the radar waves are reflected back（）they came.
A. in the way
B. the way
C. by the way
D. through the path
[单项选择]（）, so they are widely used on board ship nowadays.
A. Diesel engines have more advantages in comparison with gasoline engines
B. Diesel engines have more advantages in comparison to gasoline engines
C. Gasoline engines have more advantages in comparison with diesel engines
D. Gasoline engines have more advantages in comparison to diesel engines
[单项选择]A re-heater, as used in an air conditioning system, is designed to control the （）
A. chilled water temperature
B. dew point temperature
C. primary air temperature
D. dry bulb temperature
[单项选择]The davit aboard a ship is used to（）.
A. lower personnel down by a transfer basket
B. lower food and water to personnel in a life raft
C. lower the life raft down with its full complement
D. move equipment around the deck
[单项选择]（）on board ship are used to control and distribute the electrical energy generated by generators.
A. Governors
B. Alternators
C. Blackboards
D. Switchboards
[单项选择]（）is used to moor the ship to the seabed to keep it sationary.
A. The bulbous bow
B. The anchor
C. The bow thruster
D. The propeller
[单项选择]When water is used to fight a fire on board a ship，the effect of the weight of the water must be taken into account. How much sea water will increase the weight displacement by one ton?（）
A. 64 cubic feet
B. 35 cubic feet
C. 100 gallons
D. 500 liters
[单项选择]In motor ship, （） is often used to recover some of the heat carried in the exhaust gases from the main engine.
A. an diesel oil heater
B. a waste heat boiler
C. a fresh water generator
D. all the above
[单项选择]On a ship，a fire pump may be used for other purposes if（）.
A. the other services are run off a reducing station with a pressure gage
B. a separate fire pump is available for use on the fire main
C. all other services are operated by a manifold near the pump
D. All of the above
[单项选择]If an air compressor is used to supply compressed air to outlets throughout the engine room and on deck of a vessel, the system is known as the （）.
A. combustion control air system
B. supply air system
C. ships service air system
D. low pressure deck air system
