Chapter 13 hose operations and hose streams Actual Questions
with Detailed Answers
Question 1.
What is the difference between a fire hose and a supply hose?
Correct Answer: A fire hose carries water from the hydrant or water source to
the pumper and then to the fire Supply hoses transfer the water from its source
to an apparatus fire pump
Question 2.
Failures or reduction and water supply or pressure from hydrants can result from. (7)
Correct Answer: Damaged hydrant valves, and connections Broken water mains
Greater demand than the system can provide Hydrants located on dead end
water mains Closed isolation valves Restricted MAINS Pipes or hydrants that are
frozen
Question 3.
What are the two primary types of fire hydrants used in North America?
Correct Answer: Dry barrel and wet barrel
Question 4.
Regardless of location, designer type hydrant, discharge outlets are considered standard if
they contain the two following components
Correct Answer: At least one large four or 4 1/2 inch outlet often referred to as
pumper outlet nozzle or steamer connection Two hose outlet nozzles for 2 1/2
inch couplings
Question 5.
Hydrant specifications require a blank inch valve opening for three-way standard hydrants,
and a blank inch connection to the water main
Correct Answer: 5 inch opening 6 inch to water main
Question 6.
Which standard sets the regulations for the number of threads per inch in the outside
diameter of the male thread
Correct Answer: NFPA1963
,Question 7.
What is a tri barrel hydrant designed for?
Correct Answer: Use and climate with freezing temperatures
Question 8.
Where is the main control valve of the dry barrel hydrant located?
Correct Answer: At the base or foot of the hydrant below the frost line
Question 9.
On a dry barrel hydrant, turning the stem in a counterclockwise direction opens or closes
the valve?
Correct Answer: Opened the valve
Question 10.
What barrel hydrants are usually installed in which climate
Correct Answer: Climate without prolonged periods of sub, freezing weather
Question 11.
Picture of a dry barrel hydrant
Correct Answer:
, Question 12.
Picture of a wet barrel hydrant
Correct Answer:
Question 13.
Firefighters use tools when making fire hydrant connections these include
Correct Answer: Spanner wrenches Hydrant wrenches Rubber mallets Gate
valves Hydrant valves
Question 14.
hydrant wrenches are primarily used to
Correct Answer: Remove discharge caps from the fire hydrant outlets, and to
open fire hydrant valves
Question 15.
Gate valves control the
Correct Answer: Flow from a hydrant
Question 16.
What are a hydrant valves for main functions?
Correct Answer: Allow additional hose lines to be laid to the hydrant Connect a
Supply pumper to the hydrant Boost the pressure in the original supply line
without interrupting the flow of water in the line Allow the original supply line
to be connected to the hydrant and charged before the arrival of another
pumper at the hydrant
with Detailed Answers
Question 1.
What is the difference between a fire hose and a supply hose?
Correct Answer: A fire hose carries water from the hydrant or water source to
the pumper and then to the fire Supply hoses transfer the water from its source
to an apparatus fire pump
Question 2.
Failures or reduction and water supply or pressure from hydrants can result from. (7)
Correct Answer: Damaged hydrant valves, and connections Broken water mains
Greater demand than the system can provide Hydrants located on dead end
water mains Closed isolation valves Restricted MAINS Pipes or hydrants that are
frozen
Question 3.
What are the two primary types of fire hydrants used in North America?
Correct Answer: Dry barrel and wet barrel
Question 4.
Regardless of location, designer type hydrant, discharge outlets are considered standard if
they contain the two following components
Correct Answer: At least one large four or 4 1/2 inch outlet often referred to as
pumper outlet nozzle or steamer connection Two hose outlet nozzles for 2 1/2
inch couplings
Question 5.
Hydrant specifications require a blank inch valve opening for three-way standard hydrants,
and a blank inch connection to the water main
Correct Answer: 5 inch opening 6 inch to water main
Question 6.
Which standard sets the regulations for the number of threads per inch in the outside
diameter of the male thread
Correct Answer: NFPA1963
,Question 7.
What is a tri barrel hydrant designed for?
Correct Answer: Use and climate with freezing temperatures
Question 8.
Where is the main control valve of the dry barrel hydrant located?
Correct Answer: At the base or foot of the hydrant below the frost line
Question 9.
On a dry barrel hydrant, turning the stem in a counterclockwise direction opens or closes
the valve?
Correct Answer: Opened the valve
Question 10.
What barrel hydrants are usually installed in which climate
Correct Answer: Climate without prolonged periods of sub, freezing weather
Question 11.
Picture of a dry barrel hydrant
Correct Answer:
, Question 12.
Picture of a wet barrel hydrant
Correct Answer:
Question 13.
Firefighters use tools when making fire hydrant connections these include
Correct Answer: Spanner wrenches Hydrant wrenches Rubber mallets Gate
valves Hydrant valves
Question 14.
hydrant wrenches are primarily used to
Correct Answer: Remove discharge caps from the fire hydrant outlets, and to
open fire hydrant valves
Question 15.
Gate valves control the
Correct Answer: Flow from a hydrant
Question 16.
What are a hydrant valves for main functions?
Correct Answer: Allow additional hose lines to be laid to the hydrant Connect a
Supply pumper to the hydrant Boost the pressure in the original supply line
without interrupting the flow of water in the line Allow the original supply line
to be connected to the hydrant and charged before the arrival of another
pumper at the hydrant
