更多"Which of the following conditions c"的相关试题:
[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 following problems could cause air to blow out through the inlet air filter of a running compressor?（）
A. Excessive compression in the cylinder
B. A broken intake valve
C. A dirty inlet filter element
D. An improperly adjusted discharge valve
[单项选择]Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?（）
A. A shortage of liquid refrigerant
B. Excessive frost on the evaporator
C. Excessive condenser cooling water
D. Insufficient condenser cooling water flow
[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 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 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 following conditions could contribute to the cracking of a diesel engine cylinder head?（）
A. Leaking seal ring
B. Insufficient heat transfer from the exhaust valves
C. Block cooling water passages to the head
D. Excessive scavenging air provided to the engine
[单项选择]（）of the following conditions will cause a vessel’s bottom to be subjected to tension stresses.
A. Concentration of weight aft
B. Concentration of weight forward
C. Concentration of weight amidships
D. Concentration of weight at both ends of the vessel
[单项选择]Which of the following problems can cause fluctuating pressures in the closed cooling system of a main propulsion diesel engine?（）
A. Defective temperature controls in the system
B. Cavitation in the cooling water pump
C. Opened vent in the cooling system
D. Restricted water passages in the engine
[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 following problems can cause an above normal air temperature to develop in the intake manifold of a turbocharged and after-cooled diesel engine?（）
A. Faulty turbocharger turbine diffuser ring
B. Faulty turbocharger compressor ring
C. Insufficient cooling water flow
D. Clogged air intake filters
[单项选择]Which of the following would not cause high suction pressure?（）
A. insufficient refrigeration
B. leaky suction valves
C. expansion valve stuck open
D. suction valve not adjusted properly
[多项选择]Which of the following settings could prevent two potential EIGRP neighbors from becoming neighbors?（）
A. The i nterface used by one router to connect to the other router is passive in the EIGRP process.
B. Duplicate EIGRP router IDs.
C. Mismatched Hold Timers.
D. IP addresses of 10.1.1.1/24 and 10.2.2.2/24, respectively.
[单项选择]Which of the following terms could be applied to the simple definition the energy of motion?（）
A. Electrical energy
B. Thermal energy
C. Potential energy
D. Kinetic energy
[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 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 will cause a refrigeration compressor to run constantly without simultaneously decreasing the temperature in the refrigerated space?（）
A. Shortage of refrigerant oil
B. Slight shortage of refrigerant
C. Excessive condenser cooling water flow
D. Faulty expansion valve
