Fire Hose & Streams

irefighters assisting with a working line drag(hose drag should place the hose under place the Hose_____________.

Correct Answer

A.Under the shoulder, in the rear, resting on the firefighters back

B Just under arm

C. on top of shoulder

D. Between the legs

• A

• B

• C

• D

The most likely cause of leaking between two joined couplings is a damaged or missing __________.

A) compression gasket

B) swivel gasket

C) shank gasket

D) expansion ring

• a

• b

• c

• d

What is the purpose of the Higbee indicators?

A) Make hose coupling easier and faster

B) Indicate when the hose may be pulling out of the coupling

C) Help disoriented fire fighters find their way out of a building

D) Identify the thread standard type

• a

• b

• c

• d

Which size of coupling are the outlets on most fire hydrants sized to fit?

A) 2½" (65 cm)

B) 3" (75 mm)

C) 3½" (90 mm)

D) 4" (100 mm)

• A

• B

• C

• D

What is the function of lugs found on couplings?

A) Align the threads during coupling

B) Aid in coupling and uncoupling hose

C) Help the coupling slide over obstructions

D) Strengthen the coupling

• A

• B

• C

• D

The flow or quantity of water moving is measured in __________.

A) joules

B) cubic feet per minute (cubic meters per minute)

C) gallons per minute (liters per minute)

D) pounds per square inch (kilopascals)

• A

• B

• C

• D

What should be done to avoid water hammer?

A) Always maintain a minimum residual pressure of 20 psi

B) Never connect a hard suction hose to a pressurized water supply

C) Purge air from the line before opening a valve or nozzle

D) Open and close all valves slowly

• A

• B

• C

• D

What is the decrease in pressure that occurs as water moves through a hose?

A) Kinetic energy

B) Residual pressure

C) Water hammer

D) Friction loss

• A

• B

• C

• D

What is hard suction hose most commonly used for?

A) Transferring water from a pressurized source to a pump

B) Drafting from a static water source

C) Relay pumping

D) Filling a portable tank

• A

• B

• C

• D

What is used to connect hose couplings with dissimilar threads?

A) Fitting

B) Adaptor

C) Siamese

D) Hose jacket

• A

• B

• C

• D