TCFP Driver Op | 100% Correct Answers
| Verified | Latest 2024 Version
Compared 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 - ✔✔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. - ✔✔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 - ✔✔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
TCFP Driver Op | 100% Correct Answers 1
| Verified | Latest 2024 Version
, 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 - ✔✔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. - ✔✔a
The fifth principle of pressure states that the pressure of a liquid in an open vessel is
a. variable for similar liquids
b. independent of the shape of the vessel
c. greater toward the outside the outside of the vessel
d. proportional to the density of the liquid - ✔✔d
The sixth principle of pressure states that the pressure of a liquid at the bottom of the vessel
a. greater at the center
b. independent of the shape of the vessel
c. greater toward the outside of the vessel
d. dependent upon the shape of the vessel - ✔✔b
Why does the third principle of friction loss demonstrate the advantage of larger size hose
a. for the same discharge, friction loss varies inversely as the second power of diameter of hose
TCFP Driver Op | 100% Correct Answers 2
| Verified | Latest 2024 Version
| Verified | Latest 2024 Version
Compared 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 - ✔✔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. - ✔✔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 - ✔✔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
TCFP Driver Op | 100% Correct Answers 1
| Verified | Latest 2024 Version
, 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 - ✔✔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. - ✔✔a
The fifth principle of pressure states that the pressure of a liquid in an open vessel is
a. variable for similar liquids
b. independent of the shape of the vessel
c. greater toward the outside the outside of the vessel
d. proportional to the density of the liquid - ✔✔d
The sixth principle of pressure states that the pressure of a liquid at the bottom of the vessel
a. greater at the center
b. independent of the shape of the vessel
c. greater toward the outside of the vessel
d. dependent upon the shape of the vessel - ✔✔b
Why does the third principle of friction loss demonstrate the advantage of larger size hose
a. for the same discharge, friction loss varies inversely as the second power of diameter of hose
TCFP Driver Op | 100% Correct Answers 2
| Verified | Latest 2024 Version
