更多"A high-velocity fog stream can be u"的相关试题:
[单项选择]The basic training in fire prevention and fire fighting should include the practical elements which should allow the trainees to acquire the ability to （）.
A. use self-contained breathing apparatus
B. use various types of portable fire extinguishers
C. effect a rescue in a smoke-filled space wearing breathing apparatus
D. All of the above
[单项选择]The blocking or absence of fire dampers can cause（）.
A. the accumulation of explosive gases
B. faster cooling of the fire
C. the fire to spread through the ventilation system
D. fixed foam systems to be ineffective
[单项选择]Blocking open or removing fire dampers can cause（）.
A. fixed foam systems to be ineffective
B. faster cooling of the fire
C. the accumulation of explosive gases
D. the fire to spread through the ventilation system
[单项选择]A fire can be extinguished by removing （）.
A. the heat
B. the fuel
C. the oxygen
D. any of the above
[单项选择]Which fire extinguishing agent can NOT be used on an ethylenediamine?（）
A. Water foam
B. Dry chemical powder
C. Water fog
D. Alcohol foam
[单项选择]A fire starting by spontaneous combustion can be expected in which condition?（）
A. Paints，varnish，or other liquid flammables are stowed in a dry stores locker
B. Inert cargoes such as pig iron are loaded in a wet condition
C. Oily rags are stowed in a metal pail
D. Clean mattresses are stored in contact with an electric light bulb
[单项选择]A fire in a ballast pumproom can be brought under control with minimal impact on stability by（）.
A. cooling the outside bulkheads with water
B. shutting all sources of air into the compartment
C. closing the sea chest
D. flooding the compartment with salt water
[单项选择]Radiation can spread a fire by （）.
A. transmitting the heat of a fire through the ship s metal
B. burning liquids flowing into another space
C. heated gases flowing through ventilation systems
D. the transfer of heat across an unobstructed space
[单项选择]You can determine that a C02 fire extinguisher is fully charged by（）.
A. looking at the gage
B. checking the nameplate data
C. weighing by hand
D. weighing on a properly calibrated scale
[单项选择]A large oil fire on the deck of a ship can be fought most effectively with（）.
A. dry chemical
B. foam
C. high-velocity fog
D. Water (cartridge-operated)
[单项选择]Which kind of fog is also named as ground fog?（）
A. Advection
B. Radiation fog
C. frontal fog
D. Steam fog
[单项选择]Radiation fog（）.
A. always forms over water
B. is formed by a temperature inversion
C. is thinnest at the surface
D. dissipates during the evening
[单项选择]Fire dampers prevent the fire spreading through the process of （）.
A. convection
B. conduction
C. radiation
D. direct contact
