更多"Intercoolers installed on starting "的相关试题:
[单项选择]Air receivers installed in starting air systems are to be （）.
A. cylindrical in shape with service connections located at the top and bottom
B. opened and made available for inspection during biannual inspections provided
C. with automatic drain traps for the removal of moisture
D. so installed as to make the drain connections effective under extreme conditions of trim
[单项选择]The total starting air capacity required for reversible main engines is to be sufficient for at least （）.
A. six consecutive starts
B. eight consecutive starts
C. ten consecutive starts
D. twelve consecutive starts
[单项选择]Starting air valves are held firmly on their seats by（）
A. cam rollers on the camshaft
B. spring force
C. air pressure on top of the valve differential piston
D. air pressure on the bottom of the valve differential piston
[单项选择]The starting air entering the cylinder begins when the piston（）
A. has nearly come to the TDC
B. has just past the TDC
C. has nearly come to the BDC
D. has just past the BDC
[单项选择]Pump up the starting air reservoirs to their maximum pressure and （）the air reservoirs and air system.
A. open
B. close
C. drain
D. vent
[单项选择]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.
A. just
B. nearly
C. merely
D. already
[单项选择]During the inspection, the starting air valves should be closed （） the engine from turning.
A. to increase
B. to speed up
C. to prevent
D. to reduce
[单项选择]Starting air for auxiliary engines may be taken directly from the main reservoirs or through （）.
A. an auxiliary reservoir
B. a controlling air bottle
C. an emergency air compressor
D. a main air compressor
[单项选择]
When starting air-conditioner in the winter, we should open（）in sequence.
Ⅰ.alve of warming
Ⅱ.alve of humidifier
Ⅲ.an
A. Ⅲ-Ⅱ-Ⅰ
B. Ⅲ-Ⅰ-Ⅱ
C. Ⅰ-Ⅲ-Ⅱ
D. Ⅱ-Ⅲ-Ⅰ
[单项选择]（） device is provided to prevent starting air from being admitted to the cylinder before the reversing is completed.
A. An automatic
B. A transmission
C. A self-regulating
D. An interlocking
[单项选择]During （）, the starting air valves should be closed to prevent the engine from turning.
A. overhaul
B. running
C. blowing down
D. All of the above are correct
[单项选择]When starting air is admitted, a diesel engine turns over very slowly without firingThe cause may be （）
A. an obstruction in an cylinder
B. water accumulation in some engine cylinders
C. low starting air pressure
D. low scavenge air pressure
[单项选择]The starting air bottle should be pumped up to maximum pressure by the （） before start of the engine.
A. air compressor
B. refrigeration compressor
C. vacuum pump
D. purifier
[单项选择]The starting air system usually has （） to prevent starting if anything is not in order.
A. drain cocks
B. vent valves
C. counteracts
D. interlocks
[单项选择]Some （） lying in the starting air lines will give rise to corrosion and can cause water hammer.
A. air
B. moisture
C. cooling water
D. lubricant
[单项选择]Open the （）before starting an air compressor.
A. unload valve
B. cooling water
C. oil cup
D. sump
[单项选择]Air compressors are equipped with unloading systems for the purpose of（）.
A. removing all but the frictional load during starting
B. relieving intercoolers of high temperature buildups
C. providing high starting torque in the drive motor
D. seating valve plates during compressor shutdown
