Worn bearings, rings, and valves all contribute to:?
A) Poor reversal B) Quiet operation C) Hard starting D) High pressure E)None
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She can’t come______ Saturday, we are going_____ for the weeken?
A) by-over B) till-out C) on-away D) round-off E)out-off
An air compressor is equipped with an intercooler and an aftercooler to __________?
A) İnject water vapor into the compressed air B) Prevent overheating of first stage valves C) Increase compressor efficiency and economy D) Reduce the compressed air charge density E)Increase the compressed air charge density
Cavitation, the forming and bursting of vapor filled cavities or bubbles will result in___________?
A) A loss of thrust B) Erosion of the blade surface C) Vibrations in the afterbody of the ship D) Noise E)All above
Fuel oil stored in fuel tanks is heated prior to utilisation to decrease …………………….. Of fuel oil.?
A) Gravity B) Toxicity C) Viscosity D) Upper explosion level E)Lower explosion level
In two stroke crosshead engine, the piston is connected to the crosshead by:?
A) Crosshead slipper B) Piston rod C) Piston pin D) Cam journal E)Piston crown
What term is used to describe the loss of combustion pressure due to worn rings and liner?
A) Blow back B) Blow down C) Both A and B D) Blow up E)Blow by
The reciprocating motion of a connecting rod is transformed into a rotary motion by the:?
A) Crankshaft B) Crankwebs C) Crank cheeks D) Crankpine E)Piston
The measurement of enclosed volume of a ship is defined by;?
A) load displacement B) displacement C) deadweight D) net tonnage E)gross tonnage
Emergency generators can be stopped via __________?
A) Ovelvoltage trip B) Overspeed trip C) Manual trip D) Undervoltage E)Any above