更多"During a period of “whiteout”，you s"的相关试题:
[单项选择]During a period of whiteout，you should expect which of the following（）.
A. Snowfall or blowing snow
B. Lack of ability to estimate distance
C. Harsh contrast between sun-illuminated snow cover and the background
D. Hazy horizons with extensive mirage effects
[单项选择]Dring a period of “whiteout”，you should expect which of the following（）.
A. Snowfall or blowing snow
B. Lack of ability to estimate distance
C. Harsh contrast between sun-illuminated snow cover and the background
D. Hazy horizons with extensive mirage effects
[单项选择]Generally speaking，you should expect to find low atmospheric pressure prevailing in the earth’s（）.
A. equatorial area
B. polar regions
C. mid-latitudes
D. All of the above
[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]Which of the following problems should be taken when cleaning the air filter on a diesel engine equipped with a turbocharger?（）
A. Reduce engine speed to idle before removing the filter
B. Soak the dirty filter in kerosene only
C. Blow out the air inlet with compressed air
D. Cover the air inlet after removing the filter
[单项选择]Which of the listed precautions should be taken when cleaning the internals of a motor with compressed air?（）
A. Open the machine on both ends so as to allow the air and dust to escape
B. Be certain that the circuit breaker is opened and tagged on the feeder panel
C. Be certain that the air is clean and as dry as possible
D. All of the above
[单项选择]In polar regions you should NOT expect to see（）.
A. mirage effects
B. sea smoke
C. extensive snowfall
D. false horizons
[单项选择]What should you do to a line to prevent fraying where it passes over the side of the vessel（）.
A. Worm that part of the line
B. Splice that part of the line
C. Cover it with chafing gear
D. Install a cleat
[单项选择]The exhaust gases for a new engine should be （） when the engine operates under full load.
A. smoky
B. a little bit dense
C. visible
D. almost invisible
[单项选择]What should you do if you have transmitted a distress call a number of times on channel 16 and have received no reply?（）
A. Repeat the message using any other channel on which you might attract attention
B. Key the microphone several times before transmitting again
C. Turn up the volume on the receiver before transmitting again
D. Report the problem to the head electrician
[单项选择]When should you conduct a visual inspection of your towline? （）
A. Whenever its serviceability is in doubt
B. In accordance with the manufacturer's recommendation
C. At least once a month
D. All of the above
[单项选择]The safety valves should be tested and adjusted when the boiler survey is （）
A. completed
B. carried out
C. cleaned
D. steamed
[单项选择]I expect（）you at 1000 hours.
A. to reach
B. reach
C. reaching
D. to reaching
[单项选择]If you（）stop smoking, you can only expect to have a bad cough.
A. won’t
B. wouldn’t
C. don’t
D. can’t
[单项选择]Which types of portable extinguisher should you watch for the reflash of the fire?（）
A. foam and water
B. CO2 and dry chemical
C. dry chemical and water
D. foam and CO2
[单项选择]Which emergency equipment should you keep near the towing bitts（）.
A. A self-contained breathing apparatus
B. A boat hook and a spanner wrench
C. A fire ax and/or cutting torch
D. A Stokes litter basket
[单项选择]Which publication should you check for complete information on Puget Sound weather conditions? （）
A. Sailing Directions
B. Light List
C. Coast Pilot
D. Chart of the area
[单项选择]Which command should you use to verify what networks are being routed by a given OSPF process（）
A. show ip ospf
B. show ip route
C. show ip protocol
D. show ip ospfdatabase
E. None of the other alternatives apply
