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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