更多"In extreme weather conditions, eith"的相关试题:
[单项选择]On a working copy of a weather map，a cold front is represented by what color line? （）
A. Red
B. Blue
C. Alternating red and blue
D. Purple
[单项选择]During extremely cold weather, while starting an engine, it turns too slowly and fails to startThis problem is most likely the result of （）
A. high fuel oil viscosity
B. low fuel oil temperature
C. high lube oil viscosity
D. energized glow plugs
[单项选择]Cold weather starting of a diesel engine is more difficult than warm weather starting due to（）
A. use of low viscosity oil in cold weather
B. increased moisture content of inlet air in cold weather
C. increased drag of pistons and bearings due to increased oil viscosity
D. higher compression pressures reached due to smaller clearances existing in the engine during cold weather
[单项选择]Cold weather starting of a diesel engine may be made easier by（）
A. decreasing the compression ratio
B. using a special fuel having a high ignition temperature
C. increasing the starting air supply
D. heating the jacket water
[单项选择]The rate of heat transfer between the hot and cold fluids passing through a shell-and-tube type heat exchanger will （）.
A. remain constant along the tubes length
B. be greatest in a single pass counter flow heat exchanger
C. remain constant throughout the heat exchanger
D. vary from section to section through out the heat exchanger
[单项选择]Weather observations provided by each weather station include all of the following except（）.
A. temperature
B. visibility
C. predicted weather for the next twelve hours
D. barometric pressure and change in the last three hours
[单项选择]Messages concerning weather conditions transmitted by radiotelephone are preceded by（）.
A. MAYDAY
B. PAN-PAN
C. SECURITE
D. SOS
[单项选择]Complete information on weather broadcasts throughout the world is contained in（）.
A. Selected Worldwide Marine Weather Broadcasts
B. your local newspaper
C. the Notice to Mariners
D. the daily weather map
[单项选择]（）indicates unstable weather.
A. The persence of cirrus clouds
B. The low-hanging stratus clouds
C. The altocumulus clouds
D. The massive cumulus clouds
[单项选择]（）fine weather it is!
A. What
B. What a
C. How
D. How a
[单项选择]Which general weather conditions should you expect to find in a low pressure system（）.
A. Fair weather
B. Precipitation and cloudiness
C. Scattered clouds at high elevations
D. Gradual clearing and cooler temperatures
[单项选择]General information on enroute weather and climate is found in（）.
A. the Sailing Directions and the Coast Pilot
B. a weather fax
C. the Local Notice to Mariners
D. the Light List
[单项选择]Weather conditions in the middle latitudes generally move（）．
A. Eastward
B. Westward
C. Northward
D. Southward
[单项选择]Navigational warnings and weather bulletins for shipping（）from Singapore Radio.
A. broadcast
B. broadcasted
C. are broadcast
D. are broadcasted
[单项选择]Hot gas defrosting uses the hot gas from （） to defrost the evaporator.
A. starting air bottles
B. diesel engines
C. boilers
D. refrigeration compressors
[单项选择]Good seamanship while towing in heavy weather requires all of the following EXCEPT（）.
A. reducing speed to reduce surging on the towline
B. lashing down or stowing all loose gear
C. dogging all hatches and watertight doors
D. streaming all of your towing hawser
[单项选择]Weather information is available from（）.
A. Commercial radio broadcasts
B. The Coast Guard on scheduled marine information broadcasts
C. VHF-FM continuous marine weather broadcasts provided by the National Weather Service
D. All of the above
