更多"A fire in electrical equipment shou"的相关试题:
[单项选择]When electrical equipment is involved in a fire，the stream of dry chemicals should be（）.
A. aimed at the source of the flames
B. fogged above the equipment
C. shot off a flat surface onto the flames
D. used to shield against electrical shock
[单项选择]The fire of electrical equipment is classified as（）fire.
A. class A
B. Class B
C. Class C
D. Class D
[名词解释]电气设备（electrical equipment）
[单项选择]Before doing maintenance on electrical equipment, you should （）.
A. turn off power first
B. turn on power first
C. with a test pen in hand
D. tell C/E
[单项选择]When fighting an electrical fire, you should first （）.
A. stop ventilation to the area
B. stop the vessel
C. secure electricity to the circuit
D. apply CO2 to the fire
[单项选择]To extinguish an electrical fire, you should use （）.
A. mechanical foam
B. chemical foam
C. carbon dioxide
D. soda acid
[单项选择]The discharge from a carbon dioxide fire extinguisher should be directed（）.
A. at the base of the flames
B. at the center of the flames
C. to the lee side of the flames
D. over the tops of the flames
[单项选择]To determine the number of portable fire extinguishers required on an inspected vessel，you should check the（）.
A. hot work permit
B. Certificate of Inspection
C. Safety of Life at Sea Certificate
D. Muster List
[单项选择]A galley grease fire on the stove may be extinguished using（）.
A. water
B. foam
C. the range hood extinguishing system
D. fire dampers
[单项选择]Complete maintenance of electrical motors should include periodic checks for machine （）
A. vibration
B. watertight integrity
C. speed droop
D. reactive power
[单项选择]The operator of electrical motors should keep a constant check on the loads they carry because （）
A. low loads necessitate frequent insulation cleaning
B. exceeding nameplate values shortens useful life
C. energy is wasted if full loading is not utilized
D. power factor correction methods are load dependent
[单项选择]When towing astern what equipment should be stowed ready for use near the towline?（）
A. First aid kit
B. Axe or cutting torch
C. Fire extinguisher
D. Chafing gear
[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]When should a fire be ventilated?（）
A. When attacking the fire directly
B. When using a steam smothering system
C. When using the fixed CO2 system
D. All of the above
[单项选择]Line throwing equipment should not be operated（）.
A. during a rain storm
B. in an explosive atmosphere
C. near a lifeboat station
D. by other than licensed officers
