Lesson 8 Supporting Pipe and Installing Water Supply Piping and Fixtures Exam
Question 1 | 5 / 5 points |
How high above the floor should ledge-type lavatories be above the floor?
Question options:
25 inches | |||
30 inches | |||
35 inches | |||
40 inches | |||
Question 2 | 5 / 5 points | ||
What is the minimum water head needed when water testing DWV piping?
Question options:
5 feet | |||
10 feet | |||
15 feet | |||
20 feet | |||
Question 3 | 5 / 5 points | ||
Based on how they’re supported, how many types of lavatories are there?
Question options:
2 | |||
3 | |||
4 | |||
5 | |||
Question 4 | 5 / 5 points | ||
What is the minimum length of a run of PVC pipe that should have an expansion loop?
Question options:
30 feet | |||
40 feet | |||
50 feet | |||
60 feet | |||
Question 5 | 5 / 5 points | ||
When facing a fixture, where is the cold-water stub-out in relation to the hot-water stub-out?
Question options:
Above | |||
Below | |||
To the left | |||
To the right | |||
Question 6 | 0 / 5 points | ||
How many connections are made to tub/shower valves?
Question options:
1 | |||
2 | |||
3 | |||
4 | |||
Question 7 | 5 / 5 points | ||
If the temperature rises 10 degrees, how much will a 100 foot-long piece of PVC pipe expand?
Question options:
1.08 inches | |||
1.8 inches | |||
2 inches | |||
2.08 inches | |||
Question 8 | 5 / 5 points | ||
What type of anchor is best to use if the object being anchored may need to be moved?
Question options:
Sleeve | |||
Insert | |||
Drop-in | |||
Stud | |||
Question 9 | 5 / 5 points | ||
What should be used to tighten plated pipe?
Question options:
Hands | |||
Monkey wrench | |||
Pipe wrench | |||
Strap wrench | |||
Question 10 | 5 / 5 points | ||
What size water supply tubing is used for icemakers?
Question options:
1/4 inch | |||
1/2 inch | |||
3/4 inch | |||
1 inch | |||
Question 11 | 5 / 5 points | ||
In a vertical run of PEX, how far apart should supports be?
Question options:
2 feet | |||
3 feet | |||
4 feet | |||
5 feet | |||
Question 12 | 5 / 5 points | ||
What is used to support the weight of vertical DWV pipe?
Question options:
Riser clamp | |||
Pipe bracket | |||
Pipe clamp | |||
Beam clamp | |||
Question 13 | 5 / 5 points | ||
What is the maximum length of flexible water supply tubing for a typical water closet installation?
Question options:
5 inches | |||
10 inches | |||
15 inches | |||
20 inches | |||
Question 14 | 5 / 5 points | ||
What is the minimum size for air chambers installed with hot-water piping?
Question options:
4 inches | |||
8 inches | |||
12 inches | |||
16 inches | |||
Question 15 | 5 / 5 points | ||
Which type of anchor is permanently attached to the concrete or masonry after being installed?
Question options:
Plastic | |||
Self-tapping | |||
Sleeve | |||
Caulking | |||
Question 16 | 5 / 5 points | ||
What is the diameter for a tailpiece and P-trap assembly for a sink?
Question options:
1 inch | |||
1 ¼ inches | |||
1 ½ inches | |||
1 ¾ inches | |||
Question 17 | 5 / 5 points | ||
What is the maximum flow rate for a modern water closet per flush cycle?
Question options:
1 gallon | |||
1.6 gallons | |||
2.2 gallons | |||
2.5 gallons | |||
Question 18 | 5 / 5 points | ||
What type of countertop typically does not come with a hole for a sink?
Question options:
Plastic/particleboard | |||
Solid plastic | |||
Granite | |||
Marble | |||
Question 19 | 5 / 5 points | ||
Which of the following anchors typically requires the smallest hole?
Question options:
Caulking | |||
Plastic | |||
Toggle bolt | |||
Lag shield | |||
Question 20 | 5 / 5 points | ||
How high above the floor are tub/shower valves installed?
Question options:
30 inches | |
36 inches | |
42 inches | |
48 inches |
Which type of anchor can be used to produce its own hole?
Question 1 options:
Full-thread sleeve | |
Insert | |
Self-drilling | |
Stud |
What is the maximum horizontal distance you can place supports for a horizontal run of inch and one-half copper pipe?
Question 2 options:
8 feet | |
10 feet | |
12 feet | |
15 feet |
Where are water hammer arrestors needed?
Question 9 options:
Near quick-closing valves | |
Near lavatories | |
Near faucets | |
Near stop and waste valves |
What is used to make the joint between a water closet and floor watertight?
Question 11 options:
A seal | |
Caulking | |
A flange | |
A washer |
When air testing water supply piping, how much pressure should be used relative to the pressure at the main?
Question options:
30% greater | |
40% greater | |
50% greater | |
60% greater |
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