更多"Every precaution must be taken to a"的相关试题:
[单项选择]Which precaution should be taken when testing a line throwing gun?（）
A. Never remove the line from the rocket
B. Fire it at an angle of approximately 90 degrees to the horizon
C. Wear asbestos gloves
D. All of the above
[单项选择]To avoid impingement attack, care must be taken with the water （） through the tubes of the heat exchangers.
A. temperature
B. velocity
C. density
D. viscosity
[单项选择]The discharge side of every fire pump must be equipped with a（）.
A. gate valve
B. pressure gauge
C. check valve
D. strainer
[单项选择]What is NOT a precaution to be taken when topping off? （）
A. Reduce the loading rate
B. Notify the engine room of the procedure
C. Maintain communications with the dock man
D. Give the operation your undivided attention
[单项选择]Any action taken to avoid collision shall，if the circumstances of the case admit，（）.
A. be positive
B. be positive and made in ample time
C. be positive，made in ample time and with due regard to the observance of good seamanship
D. be positive，made in ample time，with due regard to the observance of good seamanship and avoiding complying with local regulations
[单项选择]Every ship must fitted with（）SART, and（）two-way VHF radio telephone.
A. 1,2
B. 2,3
C. 2,1
D. 3,2
[单项选择]Which of the following precautions must be taken if an electric immersion heater is used to keep the coolant in a diesel engine warm during the time the engine is secured?（）
A. The coolant temperature must be maintained at 180℃
B. The thermostatic bypass valves must be manually opened before the engine is started
C. The pressure cap must be removed while the engine is secured
D. Electrical power to the heater must be secured before the cooling system is drained
[单项选择]What action must be taken when an individual cargo tank is closed off from the inert gas system by the tank isolation valve?（）
A. The tank must be gas freed
B. The tank must be ballasted
C. The tank must be vented to the atmosphere
D. The bypass valve must also be closed
[单项选择]Which action must be taken when an individual cargo tank is closed off from the inert gas system by the tank isolation valve?（）
A. The tank must be gas freed
B. The tank must be ballasted
C. The tank must be vented to the atmosphere
D. The bypass valve must also be closed
[单项选择]Every injury aboard a commercial vessel must be reported to the（）.
A. MSA
B. vessel owner or owner's agent
C. Occupational Safety and Health Administration
D. National Fisheries Service
[单项选择]Precautionary measures must be taken to（）safety of the stevedores，cargo and the ship.
A. insure
B. ensure
C. assure
D. assume
[单项选择]On every vessel，distress signals must be stowed（）.
A. on or near the navigating bridge
B. on the flying bridge not closer than 15 feet to any bulkhead
C. above the freeboard deck away from heat
D. in an enclosed space below the freeboard deck away from heat
[单项选择]Care must be taken to condition the （）in the boiler to prevent scaling, and corrosion, which can weaken the pressure vessel.
A. water
B. fuel
C. steam
D. air
[单项选择]Every seaman injured on a fishing vessel must reportthe injury to the Master，individual in charge，or otheragent of the employer（）.
A. before the end of the voyage
B. no later than 24 hours after the vessel docks
C. no later than 7 days after the injury occurred
D. only if the injury prevents him from working
[单项选择]（）, remedies must be taken to stop it as early as possible.
A. Any surge occurs
B. Any surge occurred
C. Should any surge occur
D. Should any surge occurring
[单项选择]A precaution you should take before bunkering is to （） .
A. plug the vents
B. plug the sounding pipes
C. plug the scuppers
D. close the lids on the vents
[单项选择]One precaution to take prior to working in a freshly painted compartment where there are an excessive amount of paint fumes, is to （）.
A. take shallow breaths of air
B. ventilate the area
C. wear a breathing apparatus while working
D. keep a charged fire hose handy
[单项选择]（） is a precaution which contributes to avoiding trouble under normal operating conditions.
A. Constant inspection
B. Keeping constant load
C. Remaining constant temperature
D. varying speed
