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TCFP DRIVER OP QUESTIONS & ANSWERS
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TCFP DRIVER OP QUESTIONS & ANSWERS
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TCFP DRIVER OP QUESTIONS & ANSWERSCompared to full-size pumpers, initial attack fire apparatus have ?
a. Larger Chassis
b. smaller chassis
c. larger agent tank size
d. the same chassis and agent tank size - Answers -b
When water converts to a gas, water vapor, or steam, the water:
a. immediately dissipates so it is rarely visible
b. changes to droplets that will fall back to the surface
c. only become visible if the ambient air temp is above 40 degrees
d. only becomes visible as it rises away from the surface of the liquid and it begins to
condense. - Answers -d
Water may be used to smother fires in a combustible liquid
a. when the liquid;s specific gravity is higher than 1
b. when the liquids specific gravity is less than 1
c. when the ambient air temp is below 32
d. when the ambient air temp is above 32 - Answers -a
Which statement about water curtains is MOST accurate
a. radiant heat does not pass through water, so water curtains are very effective
b. radiant heat easily passes through water, rendering water curtains in effective
c. radiant heat passes through water but with difficulty, so the effectiveness of water is
difficult to determine
d. Radiant heat passes through cold water but not warm water, so the effectiveness of
water curtains depends on temp - Answers -b
The fourth principle of pressure states that the pressure of a liquid in an open vessel is
a. proportional to its depth
b. independent of its depth
c. dependent upon the length of time in the vessel
d. variable even when vessels remain the same. - Answers -a
Which manner of producing fog streams occurs by deflecting water around an inside
circular stem in the nozzle
a. Circular stream nozzles
b. impinging stream nozzles
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