Test your basic knowledge |

Plumbing Certification

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. To figure the end-to-end measurement of a piece of pipe when the end-to-end center measurement is known the...
62.4lbs
true isometric
62.4 pounds
take-off must be subtracted from the end-to-center measurement.

2. What size hole should be cut into a main to saddle IN a smaller pipe?
Bight - running end and standing part
Too fast of a travel rate
The same OD as the branch
.491lbs

3. The anode rod used in a hot water heater to protect it from corrosion is made of...
Two Hole
Magnesium
.135 cu ft
Bight - running end and standing part

4. The final step in the galvanizing of pipe is to dip the pipe into a bath of molten _________?
Point at the base and sweep the base with the extinguisher
zinc
Continuously
Flooded

5. The main cause of undercutting is...
Sch 80 Steel pipe
near the middle of the jaws
Erratic readings
Too fast of a travel rate

6. There are __________ gallons in a cubic foot.
Cavitation
7.48
Flooded
7.0

7. What does the term '(inch)never saddle a dead horse'(inch) mean?
Its cheaper!
The Evaporator
Arrange a wire rope clamp so that the dead end has the U bolts
Expansion loop.

8. What does a condenser do?
On high side of the system and turns gas to liquid.
To chemically prepare the pieces for soldering
soft tempered
180

9. Steam supply using parallel flow is...
In the hot water heating pumps discharge piping.
steam and condensate flowing in the same direction
Insufficient condensate drainage
8.33 pounds

10. The color code for ACR copper is...
On high side of the system and turns gas to liquid.
Crimson... think aCRimson
Discharge
DWV

11. The most that a crane should be loaded is...
100% of the rated capacity
The tubing has been cleaned for oxygen service
Waterlogged
The stud bolt is stronger than a machine bolt of the same size and material.

12. Oil is used on a pipe machine to...
Clean all surfaces
cool and lubricate the die
The same ID as the branch
Latent

13. How often should the atmosphere be tested in a confined space?
Alloying
Continuously
9
Pipe strain

14. What is the specific gravity of water?
1
1/2 BTU
BCuP - Stands for Brazed Copper Phosphorus
5 9/16'(inch)

15. Annealing copper...
14.7psia - always in PSI-A
Arrange a wire rope clamp so that the dead end has the U bolts
When a large volume of condensate is generated
Softens it

16. What is the welding position 2 - on the electrode mean?
With the weld at a 45 degree angle
Flat and horizontal positions
15 PSI
Remote bulb

17. What is installed after the isolation valve and before the trap union on a standard trap assembly?
Strainer
BCuP - Stands for Brazed Copper Phosphorus
Act as a safety device to shut off the motor if the operator's foot is removed from the switch.
Flash Tank

18. A condensate receiver is used when...
foot valve
Equalizing line
When a large volume of condensate is generated
Pneumatics

19. A concentric reducer could be used to connect to a horizontal pump _______________ line.
(Total Height - Elevation) * .433 = psig
the type of coating and current
Discharge
Arrange a wire rope clamp so that the dead end has the U bolts

20. What is not a requirement to size the steam trap on a heating unit?
Equalizing line
Backflow preventer
1.5
Condensate pump size

21. What has the largest effect on pump alignment?
Continuously
Pipe strain
Clove hitch with a half hitch
OD

22. OD for 8'(inch)

23. Which of the following is NOT acceptable as part of a personal fall arrest system?
The system temperature - thermal and dynamic movement of the pipe and vibration.
Body belts
Loosen the far bolts first
To allow for thermal movement

24. .433 psig is equal to how high of a water column?
7.0
Flash Tank
1 foot
Remove the packing

25. To order a reducing tee you should specify the size by...
sewage
Large end to smaller end to center(bull)
true isometric
Globe valve

26. When loosening the bolts on a flange one should...
Hydrostatic
Loosen the far bolts first
Roller hangers
Type K

27. What is the standard for an electronic signal?
Bight - running end and standing part
falls
Air
4 to 20 milliamps

28. Theoretically - a pump can raise water by suction approximately __________ feet vertically.
34 feet
Air
8 5/8'(inch)
The pump creates a differential in pressure that moves the water.

29. When is it safe to remove the old packing from a valve that is under pressure?
the employer
The type of coating and current
Capillary action
NEVER!

30. How much heat is required to raise 1/2 pound of water 1 degree F?
1/2 BTU
Loosen the far bolts first
Saturated
231

31. If a horizontal pipe connecting to the suction side of a pump requires a reducer - it should be connected with...
an eccentric reducer flat on top
Loosen the far bolts first
.01745 - 3.1416 - and .7854
Discharge

32. Condensate lines should be pitched...
Increase the pressure when the temperature increases
Green
The science of heat transfer using water.
In the direction of flow

33. The best method to ensure that a plastic joint is made properly - you should...
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.
BUT
The impeller
Insert pipe into fitting and turn 1/4 turn and hold

34. What does the G stand for in the 2G - 5G and 6G weld positions?
Flooded
13/16'(inch)
A pry bar
Groove

35. The density of 1 cubic inch of Mercury is...
Waterlogged
Positive
.491lbs
Quarter

36. Name the three methods of transferring heat.
Conduction - convection and radiant.
lower hook
3.1416
pi * radius squared

37. A direct acting thermostat is used to...
Arrange a wire rope clamp so that the dead end has the U bolts
25' from any worker
200 lbs
Increase the pressure when the temperature increases

38. Formula for a cubic foot of an unknown substances weight?
1728
Multiply the specific weight by the weight of 1 cubic foot of water which is 62.4lbs. Specific weight x 62.4 = 1 cu ft weight. Example: Specific weight = 4.8 - 4.8 * 62.4 = 299lbs per cu ft
Condensate pump size
.433psi

39. Where should the pressure enter a globe valve?
Globe
The same ID as the branch
When a large volume of condensate is generated
Depends on the desired action if the disc or plug becomes detatched from the stem. (Fail open or Fail closed)

40. The smallest nominal size DWV copper tube is...

41. To determine the set on a 45 degree offset you would multiply the travel by...
2 and 1
.707
Discharge
.707 x Travel

42. Ladders with visible defects - such as broken rungs - cracked side rails - or broken steps must be...
2 3/8'(inch)
Set point
Tagged and removed from service.
Vaporization

43. What is the function of the covering on the electrodes during the process of '(inch)Shielded Metal Arc Welding'(inch)?
8.33lbs
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.
orthographic
Red.. think M&M is RED

44. One pound of water pressure is equal to...
Guide - Anchor - Guide
2.31ft
1:48 - because 1/4 of an inch is 1/48th of a foot
Protection for loss of water in the boiler.

45. Why can flux be omitted in a brazed joint?
The flux is in the filler material
Clean all surfaces
Prevailing wind speed and direction - environmental concerns - zoning requirements
galvanized

46. Zinc chills or metal fume fever are caused from welding on __________ steel.
Increase the pressure when the temperature increases
galvanized
Hydrostatics
7.48

47. Which type of orifice plate is designed to measure flow of liquids containing solids?
Flash Tank
All the way to the shoulder
Segmental
BUT

48. A simple example of a lever is...
A pry bar
protect worker safety and health
Sch 80 Steel pipe
Sch 40

49. The best knot to use when lifting pipe vertically is the...
protect worker safety and health
Hydrostatics
None
Clove hitch with a half hitch

50. The amount of heat it takes to raise one pound of water one degree Fahrenheit is known as a...
2 3/8'(inch)
BUT
ALWAYS
Multiply the length of the hypotenuse of the roll and the set by 1.414