CDC – Pumper Test Questions and Answers 100% Solved

CDC – Pumper Test Questions and
Answers 100% Solved


One gallon of water weighs ✔️✔️8.33 lbs


Water freezes at
Water boils at ✔️✔️32 F
212 F


Water s an expansion ratio of ✔️✔️1,700:1 at 500 F


Law of Specific Heat
Specific Heat is measured in ✔️✔️Measures the ability of any substance to absorb heat.
British Thermal Units (BTUs)


Law of Latent Heat of Vaporization ✔️✔️The amount of heat needed to turn a liquid into a
vapor.


Water absorbs 970 additional BTUs going from 212 F to steam ✔️✔️Law of Latent Heat of
Vaporization


A water stream discharging at this GPM and in a STRAIGHT stream is converted to steam by a
500 F and can fill a room 96x50x10 ft in ✔️✔️9 minutes


A water stream discharging at this GPM and in a NARROW FOG stream is converted to steam
by a 500 F and can fill a room 96x50x10 ft in ✔️✔️6 minutes

, A water stream discharging at this GPM and in a WIDE FOG stream is converted to steam by a
500 F and can fill a room 96x50x10 ft in ✔️✔️1 1/2 minutes


Water pressure ✔️✔️The force of water per unit area.


Water pressure is typically referred to in ✔️✔️Pounds per square inch (PSI)


A column of water 1"x1"x12" high exerts ✔️✔️0.434 psi


What determines the psi of a column? ✔️✔️Height


Six characteristics of pressure as it applies to water?
BEDPAD ✔️✔️Bottom
Equal
Depth
Perpendicular
All
Density


BEDPAD
Bottom ✔️✔️Given two containers of water of equal height, the pressure at the BOTTOM of
each container is independent of the shape of the liquid container above it.


BEDPAD
Equal ✔️✔️The pressure transmitted to a confined amount of water is transmitted equally in all
direction.


BEDPAD
Depth ✔️✔️The pressure of water in an open container is proportional to its DEPTH.