更多"Water fog from an all-purpose nozzl"的相关试题:
[单项选择]Advection fog may be formed by cold air passing over a（）.
A. colder sea surface
B. warmer sea surface
C. dry coastal plains
D. high mountain or plateau
[单项选择]Dunnage may be used to protect a cargo from loss or damage by（）.
A. ship's sweat
B. inherent vice
C. tainting
D. hygroscopic absorption
[单项选择]Bleeding from a vein may be ordinarily controlled by（）.
A. applying direct pressure to the wound
B. heavy application of a disinfectant
C. pouring ice water directly onto the wound
D. pinching the wound closed
[单项选择]Distilled water from an evaporator may be discharged into a potable water tank （）.
A. through a detachable hose connection
B. after passing through an activated charcoal filter
C. after chemical analysis shows it is fit for consumption
D. through a solenoid operated three-way valve
[单项选择]A high-velocity fog stream can be used in fire fighting situations to drive heat and smoke ahead of the fire fighters in a passageway. This technique should only be used when（）.
A. using a 2-1/2 inch hose
B. there is an outlet for the smoke and heat
C. the fire is totally contained by the ship's structure
D. at least two fog streams can be used
[单项选择]The cooling liquid used for the cylinder may be referred to as （）.
A. jacket water
B. make-up water
C. boiler water
D. flushing water
[单项选择]Diesel engine exhaust temperatures may be used to indicate （）.
A. leaking exhaust valves
B. an overloaded cylinder
C. a clogged injector nozzle
D. all of the above
[单项选择]如果汇票上付款期限是：At 90 days from 20th May该汇票的付款到期日是（）。
A. 17thAug
B. 18thAug
C. 19thAug
[单项选择]Seawater may be used for drinking（）.
A. under no conditions
B. at a maximum rate of two ounces per day
C. if gathered during or immediately after a hard rain
D. after mixing with an equal quantity of fresh water
[单项选择]The radiotelegraph alarm signal may be used to announce（）.
A. that a distress message will follow
B. a request for assistance in searching for a man overboard
C. an urgent warning about a cyclone
D. All of the above
[单项选择]Separation cloths may be used to（）.
A. absorb moisture from hygroscopic cargoes
B. fill gaps between layers of cargo
C. wrap cargo that leaks from packaging
D. keep bagged cargo leakage from contacting the deck
[单项选择]Multiple fire pumps may be used for other purposes provided that one pump is（）.
A. on line to the fire main
B. kept available for use on the fire main at all times
C. capable of being connected to the fire main
D. rated at or above 125 psi
[单项选择]Halon from extinguishers used on a class B fire，should be directed（）.
A. at the top of the flames
B. at the base of the fire near the edge
C. in short quick bursts
D. toward the upwind side of the fire
[单项选择]Which of the following firing order may be used for an 6 cylinder engine?（）
A. 1-2-3-4-5-6
B. 1-2-3-6-5-4
C. 1-5-3-6-2-4
D. 1-3-4-5-6-2
[单项选择]Seawater may be used for drinking water （）.
A. at a maximum rate of two ounces per day
B. after mixing with an equal quantity of fresh water
C. if gather during or immediately after a hard rain
D. under no circumstance
[单项选择]（）fashion differs from country to country may reflect the cultural differences from one aspect
A. What
B. That
C. This
D. Which
[单项选择]Flames from small leaks of LFG may be extinguished by（）.
A. utilizing carbon dioxide or dry chemical fire extinguishers
B. utilizing soda and acid fire extinguishers
C. blowing the flames out
D. letting it burn itself out
[单项选择]A fire pump may be used for other purposes if（）.
A. the other services are run off a reducing station with a pressure gage
B. one of the required pumps is kept availabe for use on the fire main system at all times
C. no relief valves are installed
D. all of the above conditions are met
