Question 1

Which statement about home fire sprinklers is correct?

Accepted Answer

A)  Smoke activates sprinklers. 
B)  In most instances, sprinklers control fire advancement within a few minutes. 
C)  Once activated, the entire sprinkler system begins spraying water. 
D)  Water from home sprinklers causes more damage than fire would. 
A)  Smoke activates sprinklers. 
B)  In most instances, sprinklers control fire advancement within a few minutes. 
C)  Once activated, the entire sprinkler system begins spraying water. 
D)  Water from home sprinklers causes more damage than fire would. B

Question 2

Hot-water recirculation is the process of constantly moving water through a loop in a hot-water pipe.

Accepted Answer

A) True 
 B)False  True

Question 3

Green PVC pipe is usually used for _____.

Accepted Answer

A)  cold-water piping 
B)  sewer service 
C)  high-pressure applications 
D)  venting 
A)  cold-water piping 
B)  sewer service 
C)  high-pressure applications 
D)  venting B

Question 4

Most cities have a separate storm sewer system to dispose of groundwater, rainwater, surface water, or other nonpolluting waste.

Accepted Answer

A) True 
 B)False

Question 5

When placing plumbing in wood framing, holes bored into joists must not exceed _____ of the joist depth.

Accepted Answer

A)  1/8 
B)  1/4 
C)  1/3 
D)  1/2 
A)  1/8 
B)  1/4 
C)  1/3 
D)  1/2

Question 6

Drain fields can be placed no closer than ____ from a water-table level.

Accepted Answer

A)  1' (300 mm) 
B)  2' (600 mm) 
C)  3' (900 mm) 
D)  5' (1500 mm) 
A)  1' (300 mm) 
B)  2' (600 mm) 
C)  3' (900 mm) 
D)  5' (1500 mm)

Question 7

Plastic pipes provide a durable material to distribute water and are quickly assembled by the use of soldered joints and fittings.

Accepted Answer

A) True 
 B)False

Question 8

What term refers to the vertical drain lines that carry waste from the home to the sewer main?

Accepted Answer

A)  soil lines 
B)  bent stacks 
C)  branch lines 
D)  stack lines 
A)  soil lines 
B)  bent stacks 
C)  branch lines 
D)  stack lines

Question 9

A ____ is an underground branch line that extends from the sewer line to the edge of the street or to the property line.

Accepted Answer

A)  lateral 
B)  fire sprinkler 
C)  riser 
D)  drainpipe 
A)  lateral 
B)  fire sprinkler 
C)  riser 
D)  drainpipe

Question 10

A ____ is empty until waste is flushed through the system.

Accepted Answer

A)  stack line 
B)  vent stack 
C)  soil line 
D)  riser 
A)  stack line 
B)  vent stack 
C)  soil line 
D)  riser

Question 11

Bathroom plumbing should be kept away from _____ walls.

Accepted Answer

A)  bedroom 
B)  kitchen 
C)  hallway 
D)  garage 
A)  bedroom 
B)  kitchen 
C)  hallway 
D)  garage

Question 12

The term ____ refers to the water supply line that extends from the water meter into the home to deliver potable (drinkable) water.

Accepted Answer

A)  hose bibb 
B)  riser 
C)  branch 
D)  main 
A)  hose bibb 
B)  riser 
C)  branch 
D)  main

Question 13

The IRC defines a manifold as a unit used to contain and discharge water.

Accepted Answer

A) True 
 B)False

Question 14

Hot-water branch lines are normally located ____ from and parallel to cold-water lines.

Accepted Answer

A)  2'' (50 mm) 
B)  3'' (75 mm) 
C)  6'' (150 mm) 
D)  32'' (815 mm) 
A)  2'' (50 mm) 
B)  3'' (75 mm) 
C)  6'' (150 mm) 
D)  32'' (815 mm)

Question 15

A solar water-heating system is designed to heat water by capturing energy from the sun.

Accepted Answer

A) True 
 B)False

Exam 14: Plumbing Systems

Which statement about home fire sprinklers is correct?

Hot-water recirculation is the process of constantly moving water through a loop in a hot-water pipe.

Green PVC pipe is usually used for _____.

Most cities have a separate storm sewer system to dispose of groundwater, rainwater, surface water, or other nonpolluting waste.

When placing plumbing in wood framing, holes bored into joists must not exceed _____ of the joist depth.

Drain fields can be placed no closer than ____ from a water-table level.

Plastic pipes provide a durable material to distribute water and are quickly assembled by the use of soldered joints and fittings.

What term refers to the vertical drain lines that carry waste from the home to the sewer main?

A ____ is an underground branch line that extends from the sewer line to the edge of the street or to the property line.

A ____ is empty until waste is flushed through the system.

Bathroom plumbing should be kept away from _____ walls.

The term ____ refers to the water supply line that extends from the water meter into the home to deliver potable (drinkable) water.

The IRC defines a manifold as a unit used to contain and discharge water.

Hot-water branch lines are normally located ____ from and parallel to cold-water lines.

A solar water-heating system is designed to heat water by capturing energy from the sun.

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