更多"The temperature differential occurr"的相关试题:
[单项选择]The temperature difference between the inlet and outlet temperature of the lube oil cooler in the lubricating system for the diesel engine is generally between （）.
A. 8-10℃
B. 10-12℃
C. 10-15℃
D. 10-20℃
[单项选择]An increased pressure differential between the inlet and outlet of a strainer usually indicates the strainer is （）
A. holed
B. fouled
C. clean
D. dry
[单项选择]An increased differential between the inlet and outlet of a strainer usually indicates the strainer is （）
A. holed
B. fouled
C. clean
D. dry
[单项选择]The (auto)ignition temperature is that temperature atwhich（）.
A. no spark or flame is required to ignite gas or vapor
B. a fuel begins to give off explosive vapors
C. a fuel if ignited will continue to burn
D. a 1% mixture of the fuel with air will explode
[单项选择]Critical speeds occurring within the operating speed range of a main propulsion diesel engine may be changed, or have their damaging effects reduced by a/an （）
A. engine support vibration isolator
B. detuner or viscous fluid damper
C. lightened crankshaft flywheel
D. spherically seated crankshaft bearing
[单项选择]The sudden reduction of pressure occurring within the crankcase of a refrigeration compressor during starting causes the （）.
A. sudden evaporation of wax crystals in the lubricant
B. sudden evaporation of entrapped air in the lubricant
C. release of refrigerant from the oil/refrigerant mixture
D. release of dissolved lubricant from the refrigerant
[单项选择]The area of strong westerly winds occurring between 40°S and 60°S latitude is called the（）.
A. polar easterlies
B. prevailing westerlies
C. roaring forties
D. jet streams
[单项选择]Restrictions occurring in the small orifices of pneumatic control system components can be used by （）
A. moisture in the compressed air supply
B. excessive dryness in the compressed air supply
C. pressure surging in the compressed air receiver
D. insufficient lubrication of the system components
[单项选择]To prevent accidents from occurring, special valve chests are used in such cases in which interchangeable blanks and connecting passages are incorporatedThe bold and italic word “which” means （）.
A. accidents
B. special valve chests
C. interchangeable blanks
D. connecting passages
[单项选择]Excessively low air pressure occurring in the intercooler of a reciprocating air compressor is caused by（）.
A. leaky discharge valves on the LP cylinder
B. leaky discharge valves on the HP cylinder
C. insufficient intercooler cooling
D. low ambient air pressure
[单项选择]To avoid scavenge fires occurring the engine timing and equipment maintenance （）.
A. should be correctly carried out
B. should correctly be taken place
C. should carried with care
D. must to carry out with great care
[单项选择]Combustion knock occurring in a diesel engine can be caused by （）
A. low coolant temperature
B. insufficient fuel
C. high ambient temperature
D. carbon buildup on the injector tips
[单项选择]What determines the number of events occurring in a cycle of operation in an internal combustion engine?（）
A. Crankshaft revolution
B. Type of engine (diesel or gasoline)
C. Distance a piston travels during a stroke
D. Number of pistons
[单项选择]Increasing differential pressure of an oil filter indicates that （）
A. it is dirty
B. it is leaky
C. it has been renewed
D. all the above
[单项选择]Differential needle valves used in fuel injectors are directly closed by（）
A. cam action
B. spring force
C. fuel oil pressure
D. firing pressure
[单项选择]Logbooks are used to record the events occurring when（）.
A. the ship is in a harbor
B. the ship is at anchorage
C. the ship is underway
D. All of the above
[单项选择]The major cause of problems occurring with fuel injection equipment is（）
A. incorrect replacement of barrels and plungers of jerk pumps
B. overheating of the nozzle orifices
C. cracked pump housings
D. dirt in the fuel
