更多"Which of the problems listed could "的相关试题:
[单项选择]Which of the listed problems could produce a high absolute pressure within a flash type evaporator?（）
A. Production of high salinity distillate
B. Seawater feed temperature below 165℃
C. A leak in the first stage demister
D. A cracked distillate pump vent line
[单项选择]Which of the listed problems would be indicated by an accumulation of water in one cylinder, in addition to the crankcase of an idle diesel engine?（）
A. Excessive cylinder liner
B. water in the fuel system
C. Cracked cylinder liner
D. Leaking lube oil cooler
[单项选择]Which of the problems listed represents the major difficulty encountered with thermal expansion valve operation?（）
A. Lube oil passing through the system
B. Moisture or foreign matter collecting at the valve seat and orifice
C. Variable spring tension caused by the changing temperature
D. Frost on the liquid line
[单项选择]Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?（）
A. Thermal expansion valve frozen open
B. Suction gas heat exchanger bypassed
C. Condenser clogged or fouled
D. High pressure cutout switch inoperative
[单项选择]Which of the listed devices could be used as a substitute for a ring grooving tool?（）
A. Steel brush
B. Fine emery cloth or steel wool
C. A section of the removed compression ring
D. A case hardened scraper
[单项选择]Which of the listed devices could be used as a ring groove tool during preparation for the installation of new rings?（）
A. Steel brush
B. Fine emery cloth or steel wool
C. A section of the removed compression ring
D. A case hardened scraper
[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 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 listed problems can be a cause of low compression pressure in a diesel engine?（）
A. clogged air filter
B. compression stroke
C. burned exhaust valves
D. all of the above
[单项选择]The board acknowledges the problems which （）from the newness of the approach.
A. arise
B. rise
C. arouse
D. raise
[单项选择]In which situation could a vessel most easily capsize?（）
A. Running into head seas
B. Running in the trough
C. Running with following seas
D. Anchored with your bow into the seas
[单项选择]Which of the listed refrigeration system components keeps the refrigerant circulating through the system?（）
A. Expansion valve
B. Condenser
C. Evaporator
D. Compressor
[单项选择]Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
A. Sensitivity
B. Power
C. Speed droop
D. Compensation
[单项选择]Each liferaft，which does not have an indicated maximum stowage height indicated on the liferaft，must be（）.
A. limited to carry no more than 10 persons
B. stowed not more than 59 feet above the lightest waterline
C. stowed in quick release racks
D. inspected every six months
[单项选择]Which of the routine maintenance procedure listed is required for starting air receivers?（）
A. Frequent draining of accumulated moisture
B. Frequent testing of relief valves
C. A close watch on temperature to prevent fluctuations in pressure
D. Frequent cleaning to re move oil and foreign matter
[单项选择]Which of the routine maintenance procedures listed is required for starting air receivers?（）
A. over-speeding
B. overload
C. low exhaust temperature
D. high crankcase pressure
[单项选择]In which source could you find the number of a chart for a certain geographic area?（）
A. Chart No.1
B. Catalog of Charts
C. IMO Practical Navigator
D. IMO Light List
