更多"Which of the conditions listed will"的相关试题:
[单项选择]Which of the conditions listed would cause simultaneous high cylinder firing pressure and low exhaust temperature?（）
A. Improper fuel rack positioning
B. Lengthy opening of the exhaust valve
C. Excessively early injection timing
D. Extended light load operation
[单项选择]Which of the conditions listed could cause the cylinder relief valves on a large, low-speed, propulsion diesel engine to lift?（）
A. Plugged injector nozzles
B. Excessive fuel injection
C. Very late injection timing
D. Incorrect crankshaft clearance
[单项选择]Which of the listed conditions will cause the feed water that has not flashed to vapor in the first-stage of a flash evaporator, to flow into the second-stage?（）
A. Gravity siphon effect
B. Higher vacuum in the second-stage
C. Difference in brine density between first and second stages
D. lower pressure in first-stage
[单项选择]Which of the listed conditions can cause a diesel engine to use too much lube oil?（）
A. Dirty lube oil filter
B. Too much piston ring wear
C. High lube oil viscosity
D. Low lube oil temperature
[单项选择]Which of the listed conditions can cause lacquer to be deposited on a piston skirt?（）
A. High sulphur content fuel
B. High lube oil temperatures
C. High vanadium content fuel
D. Excessive piston slap
[单项选择]The three conditions which cause engine shutdown are overspeed，low lube oil pressure，and（）.
A. High lube oil pressure
B. High jacket water pressure
C. High jacket water temperature
D. Low jacket water pressure
[单项选择]Which of the conditions listed represents the greatest effect of excess frost accumulation on the evaporator coils?（）
A. Keeps the refrigerated space cooler
B. Reduces the efficiency of the plant
C. Takes the load off the compressor
D. Has no affect on the system
[单项选择]Which of the following conditions could be a cause of excessive fuel dilution of diesel engine lube oil?（）
A. Leaking fuel injectors
B. Lower than normal compression
C. Delayed fuel injection
D. All of the above are correct
[单项选择]Which of the conditions listed may occur in an operating diesel engine if air pockets form within the cylinder head circulating water passages? （）
A. Hydraulic stress and distortion will develop
B. Hot spots will develop
C. Fuel oil viscosity will increased
D. An increase in trapped deposits of scale and dirt
[单项选择]Which of the listed operations will cause an automatically controlled refrigeration compressor to restart?（）
A. Closing of the solenoid valve
B. Closing of the expansion valve
C. An increase in the suction pressure
D. Decreasing the suction pressure
[单项选择]Which conditions will normally cause a SART to operate in the active mode?（）
A. It will respond only to interrogation by 9-Ghz radar signals
B. A SART will normally respond to interrogation from a searching vessel's radar if the radar antenna is at least 15 meters high
C. A SART will normally respond to interrogation from a searching aircraft's radar if the radar's output power is at least 10，000 watts and the aircraft is at a height of 3000 feet and within 30 nautical miles
D. All of the above
[单项选择]Which of the following conditions would cause carbon deposits to form in the piston ring belt of a diesel engine?（）
A. faulty combustion
B. excessive ring temperature
C. over lubrication
D. all of the above
[单项选择]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?（）
A. Clogged air intake falters
B. Piston blow-by
C. A defective after-cooler
D. Faulty exhaust valves
[单项选择]Which of the following conditions can cause below normal air pressure in the intake manifold of a turbocharged diesel engine?（）
A. Excessive piston blow-by to the manifold
B. Insufficient cooling water flow
C. Accumulated water in the air boxes
D. Clogged air intake filters
[单项选择]Which of the following conditions could cause the feed pump for an auxiliary boiler to lose suction?（）
A. Increased suction head pressure
B. Decreased feedwater temperature
C. Pump recirculating line being open too much
D. Excessive feedwater temperature
[单项选择]Which of the following conditions can cause excessive lube oil consumption in a diesel engine?（）
A. Low lube oil temperature
B. Dirty lube oil strainer
C. Low lube oil pressure
D. High lube oil temperature
[单项选择]Which of the listed conditions will affective pressure the most in the cylinder of a diesel engine?（）
A. TBN of the lubricating oil
B. Temperature of the lube oil
C. Completeness in the mixing of the fuel and air
D. Temperature of the cooling (sea) water
[单项选择]The total magnetic effects which cause deviation of a vessel’s compass can be broken down into a series of components which are referred to as（）.
A. divisional parts
B. coefficients
C. fractional parts
D. equations
[单项选择]Which of the listed operating conditions would have the greatest effect on the volumetric efficiency of an operating reciprocating air compressor?（）
A. The density of the air entering the compressor
B. The temperature of the air entering the compressor
C. The designed rotating speed of the compressor
D. A leaking head gasket
