轮机英语
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[单项选择]After fitting back in place the gear wheels, dont forget () them.
A. to grease
B. greasing
C. oiling
D. lubricating
[单项选择]A-frames are mounted on the bed plate and support () and cylinder block.
A. the main bearing
B. the cylinder cover
C. the entablature
D. the sump
[单项选择]A reduction in load on a diesel engine results in () of speed of the crankshaft.
A. a reduction
B. an increase
C. an outing
D. a downwards
[单项选择]After "F.W.E" is given, the air system is shut down, the () gear put in, all drains and indicator cocks opened, and the cooling water kept running.
A. steering
B. timing
C. turning
D. running
[单项选择]A variable pitch propeller is made () a boss with separate blades mounted into it.
A. of
B. up of
C. from
D. out
[单项选择]
A: Please tell me the specifications and quantity.
B: ()
A. Pump diesel oil first
B. 300 tons of 180 cst fuel oil
C. The figure is all right
D. OK, I’ll sign it
[单项选择]A single piece() fitted with bronze rings guides the piston in the cylinder liner.
A. piston skirt
B. piston crown
C. guide way
D. cross-head
[单项选择]Adjust () by means of lead wire.
A. the clearance of the main bearing
B. the diameter of main bearing
C. the gap of main beating
D. the tolerance of main bearing
[单项选择]About half an hour before the engine is required, cooling water at () must be circulated.
A. more than the working temperature
B. less than the working temperature
C. the working temperature
D. the same as the surrounding temperature
[单项选择]After ensuring that the () is correct the bearing clearance should be checked.
A. nap
B. gap
C. nip
D. deflection
[单项选择]Acid solution() in the system can be tested from time to time by putting some on to a piece of lime.
A. strength
B. dense
C. percentage
D. velocity
[单项选择]According to the way the energy of the exhaust gases is utilized, pressure-charging can be divided into two main systems, namely, the constant-pressure system and ().
A. the pulse-phase system
B. the pulse Doppler system
C. the pulse system
D. the pulse interval
[单项选择]Additives () protective layers on metal surfaces guarding them against corrosion.
A. damage
B. form
C. dissolve
D. contaminate
[单项选择]After passing through the turbine the exhaust gas is conducted out into the().
A. intercooler
B. compressor
C. cylinder
D. open air
[单项选择]A separate piston cooling system is used to limit any contamination () piston cooling glands() the piston cooling system only.
A. between;to
B. either;or
C. from;to
D. neither;nor
[单项选择]A separate piston cooling system is used () any contamination from piston cooling glands to the piston cooling system only.
A. to help
B. to limit
C. to protect
D. to remove
[单项选择]A number of cylinder liners are enclosed in one cast iron casing to form a ().
A. cylinder cover
B. cylinder block
C. cylinder frame
D. bed-plate
[单项选择]A main bearing consists of two shells which are secured by means of studs and ().
A. tie rods
B. through bolts
C. lead wires
D. bearing caps
[单项选择]A-frames and cylinder block is held together by () to form a rigid structure.
A. connecting rods
B. piston rods
C. tie rods
D. jack-bolts
[单项选择]Administrations should bear in mind the significance of () in maintaining safety of life and property at sea and in preventing marine pollution.
A. advanced nautical equipment
B. advanced performance main engines
C. emergency equipment
D. communication and language skills
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