A pump in machine raised liquids from a _______ point to a high point?
A) Higher B) Low C) main D) inflection E)limit
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What do you understant by “hoisting” ?
A) Rotating the crane B) Slewing the derrick C) Lowering the jib D) Lowering out the line E)Lifting the load
A diesel generator engine operates at 1800 RPM. The overspeed governor will normally be set between_____________RPM.?
A) 1980 and 2070 B) 2100 and 2200 C) 2200 and 2300 D) 2300 and 2400 E)Less than 1800
Worn bearings, rings, and valves all contribute to:?
A) Poor reversal B) Quiet operation C) Hard starting D) High pressure E)None
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