When the starting air valve closes on one cylinder, another starting air valve has （） opened on another cylinder whose piston has just commenced its downward stroke.
Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by （）.
A six-cylinder, two-stroke/cycle diesel engine is fitted with a rotary distributing air starting systemThe speed of the rotating distributor disc is （）
A double suction centrifugal pump impeller has been installed in the reverse direction, and will （）.
Air motion is induced in a four-stroke/cycle diesel engine cylinder to improve air fuel mixing, and is known as（）
If a four-stroke/cycle diesel engine is started by injecting air into the cylinder, the pistons receiving the charge of starting air must be（）
In the four-stroke engine, it takes （） to make one power stroke.
A two-stroke/cycle diesel engine requires less starting air than a four-stroke/cycle diesel engine, of equal displacement, because the two-stroke/cycle diesel engine（）
A two-stroke diesel engine exhaust temperature will be lower than a four-stroke diesel engine of the same displacement because the （） (1) MEP is lower and the scavenging air is cooling the exhaust gases (2) valve overlap in a four-stroke
When installed for bilge pumping or ballast duty, centrifugal pumps require a （） to remove air from the suction pipe.
The major difference between the discharge and suction valves installed in most low pressure, reciprocating air compressors is that（）
Excessive air leakage into the suction side of a centrifugal pump would be indicated by which of the following operational problems?（）
A two-stroke diesel engine exhaust temperature will be lower than a four-stroke diesel engine of the same displacement because the （） (1) scavenging air is cooling the exhaust gases (2) exhaust cycle time is longer
In a four-stroke/cycle diesel engine, after the completion of the power stroke, the piston will move（）
Which of the following conditions can cause above normal air temperature to develop in the intake manifold of a four-stroke/cycle turbo-charged diesel engine?（）
The four strokes are called suction, compression, expansion and exhaust, but only （） stroke provides the power to drive the ship.
When an air started, four-stroke/cycle diesel engine is being cranked, the starting air is admitted to each cylinder during what would normally be the（）
Four strokes consist of suction, compression, （） and exhaust stroke.
A large two-stroke/cycle direct reversing diesel engine is to be reversedPrior to the admission of starting air you must （）
During the suction stroke, the piston is moving （）.
The static suction lift of a pump is the difference in elevation between the （）.
The lubricating oil is pumped from the drain tank, very often with （） in the suction line.
The four strokes of a four-stroke diesel engine according to their sequence are :suction,compression,expansion and exhaust.()
Among the four strokes of a four-stroke diesel engine,suction and expansion strokes are the upward strokes.()
