第1题:
Theoretical perfect combustion in a diesel engine yields by-products of_____.
A.aldehydes and carbon dioxide
B.water vapor and carbon monoxide
C.nitrogen and carbon monoxide
D.water vapor and carbon dioxide
第2题:
What could result in an incorrect oxygen concentration reading on the oxygen indicator ________.
A.Exposure to carbon dioxide for no more than 1 minute
B.Exposure to carbon dioxide for more than 10 minutes
C.Exposure to a very low concentration of sulfur dioxide for no more than 2 minutes
D.None of the above
第3题:
______, as the chemical extinguisher agent, should be used for an electric fire.
A.dry chemical or foam
B.foam or soda acid
C.carbon dioxide or foam
D.carbon dioxide or dry chemical
第4题:
第5题:
第6题:
Batten down the engine room
start the fire pump
apply carbon dioxide to the fire
shut off the fuel supply
第7题:
第8题:
frostbite
skin burns
asphyxiation
an explosive reaction
第9题:
Cleaner
Effective
Greater range
More cooling effect
第10题:
aldehydes and carbon dioxide
water vapor and carbon monoxide
nitrogen and carbon monoxide
water vapor and carbon dioxide
第11题:
对
错
第12题:
Because carbon dioxide dilutes the oxygen concentration in the atmosphere and may cause asphyxiation
Because carbon dioxide breaks down in a fire into carbon monoxide which may cause blood poisoning in the person breathing this gas
Because carbon dioxide is a colorless and odorless gas that becomes highly toxic in the presence of high temperatures and will quickly incapacitate a person exposed to this gas
This action is unnecessary as carbon dioxide is not poisonous nor toxic but is a relatively harmless gas
第13题:
In the event of fire in a machinery space,______.
A.the fixed carbon dioxide system should be used only when all other means of extinguishment have failed
B.the fixed carbon dioxide system should be used immediately,as it is the most efficient means of extinguishment
C.water in any form should not be used as it will spread the fire
D.the space should be opened 5 minutes after flooding CO2 to prevent injury to personnel
第14题:
The most effective way of applying carbon dioxide from a portable extinguisher to a fire is by ______.
A.Forming a cloud cover over the flames
B.Directing the gas at the base of the flames in a slow sweeping motion
C.Discharging the carbon dioxide into the heart of the flames
D.Bouncing the discharge off an adjacent bulkhead just above the burning surface
第15题:
第16题:
第17题:
Which two statements regarding the Policy Framework in Enterprise Manager (EM) are correct?()
第18题:
Cleaner
Effective on metal fires
Greater range
More cooling effect
第19题:
Policy violations are prioritized as High, Medium, or Informational by category
Policies can be disabled completely, or flagged as ignored, for the specified target
Policies can be flagged as ignored, but never completely disabled, for the specified target
Policy violations must be corrected, otherwise the database will shut down until corrective action occurs
第20题:
greater range
effective on all types of fires
cleanliness
All of the above
第21题:
divisional parts
coefficients
fractional parts
equations
第22题:
Carbon dioxide is corrosive when exposed to fire
Carbon dioxide should be applied slowly to a large engine room fire
Its total cooling effect is far greater than water
Its smothering effect is excellent for class B fires
第23题:
第24题:
first to the bottom of the flaming area,sweeping from side to side,and following the flames upward
in a circular motion from the middle of the bulkhead outward
to the top of the flaming area,sweeping from side to side,and working toward the bottom
in an up-and-down motion from one side of the bulkhead to the other