Lesson 4 The Technical Aspects of Plumbing Exam
Question 1 | 5 / 5 points |
Which type of plan shows room arrangement?
Floor plan | |||
Plot plan | |||
Foundation plan | |||
Detail drawings | |||
Question 2 | 5 / 5 points | ||
Two pipes are to be connected together using 45-degree elbows. If the ends of the pipes are ten inches from each other horizontally, how far apart are they vertically?
5 inches | |||
8 inches | |||
10 inches | |||
15 inches | |||
Question 3 | 5 / 5 points | ||
If a rectangular tank is 8 feet high, 14 feet long, and 8 feet wide, what is its volume?
30 cubic feet | |||
112 cubic feet | |||
582 cubic feet | |||
896 cubic feet | |||
Question 4 | 0 / 5 points | ||
Convert 54 inches to centimeters
13,716 cm | |||
1371.6 cm | |||
137.16 cm | |||
13.716 cm | |||
Question 5 | 5 / 5 points | ||
What is the pressure per square foot on the bottom of a 20-foot-high tank filled to the top?
8.67 psf | |||
1248 psf | |||
46.15 psi | |||
1240 psi | |||
Question 6 | 5 / 5 points | ||
What is the minimum number of people needed to use a builder’s level?
1 | |||
2 | |||
3 | |||
4 | |||
Question 7 | 5 / 5 points | ||
Which trigonometric functions are most frequently used to compute pipe offsets?
Sine and tangent | |||
Sine and cosine | |||
Cosine and tangent | |||
Sine and ratio | |||
Question 8 | 5 / 5 points | ||
How far can a builder’s level rotate?
180° | |||
360° | |||
540° | |||
720° | |||
Question 9 | 5 / 5 points | ||
Which abbreviation would be used to mark a toilet?
TL | |||
LAV | |||
WC | |||
WS | |||
Question 10 | 5 / 5 points | ||
In the United States, 1 foot commonly equals what unit on a set of plans?
1 inch | |||
1/4 inch | |||
1/2 inch | |||
1/3 inch | |||
Question 11 | 5 / 5 points | ||
Horizontal motion screw | |||
Horizontal circle vernier | |||
Horizontal motion tangent screw | |||
Leveling screws | |||
Question 12 | 5 / 5 points | ||
What is the area of a circle with a 10-inch diameter?
78.54 square inches | |||
314 square inches | |||
7.854 square inches | |||
31.4 square inches | |||
Question 13 | 0 / 5 points | ||
What is the pressure head at the base of a 70-foot tank filled to the top?
35 | |||
30.33 | |||
70 | |||
4368 | |||
Question 14 | 5 / 5 points | ||
How much pressure per square inch is exerted by a pressure head of 200 feet of water?
8600 | |||
86.67 | |||
12,480 | |||
86 | |||
Question 15 | 5 / 5 points | ||
What is the pressure per square inch on the bottom of a 100-foot tank filled to the top?
43.33 psi | |||
43.06 psi | |||
6240 psi | |||
100 psi | |||
Question 16 | 0 / 5 points | ||
What is the common working distance for a pipe laser level?
100 feet | |||
200 feet | |||
300 feet | |||
400 feet | |||
Question 17 | 5 / 5 points | ||
A pipe needs to be connected to another pipe that is 17 inches lower using a third piece of pipe on a 45° angle. How long does the third piece of pipe need to be?
42 inches | |||
34 inches | |||
51.02 inches | |||
24.04 inches | |||
Question 18 | 5 / 5 points | ||
Eye protection must be worn when laser light is greater than what?
5 milliwatts | |||
.005 milliwatts | |||
5 watts | |||
.05 watts | |||
Question 19 | 5 / 5 points | ||
For a plumber, what is the purpose of a section view?
Show the location of certain fixtures | |||
Show the pipe angles used in all dimensions | |||
Show where water enters the house | |||
Show vertical distances | |||
Question 20 | 5 / 5 points | ||
Which tool can be used to measure travel for 45° offsets?
Fixed rule | |
Square | |
Plumber’s rule | |
Laser level |
Which of the following would not be addressed in plumbing specifications?
Materials to be used | |
The quality of the expected work | |
The location of fixtures | |
Needed permits |
What formula is used to calculate the area of a circle?
a = .785r2 | |
a = 3.14r2 | |
a = 3.14d2 | |
a = πd^2 |
In an isometric sketch, what angle are horizontal pipes drawn on?
120° | |
90° | |
45° | |
180°
|
Which of the following temperatures is the coldest?
100° K | |
90° F | |
14° C | |
–80° F |
Which of the following could happen if air flows freely through DWV piping?
The flow of water could become blocked. | |
Water could remain in traps. | |
Pipes could break. | |
Water could be forced from traps. |
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