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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. The pressure exerted by a liquid at rest is...
lower hook
Hydrostatic
Absolute
Remote bulb

2. What is the minimum thickness for threading PVC pipe?
Absolute
Ground Fault Circuit Interrupter
4 to 20 milliamps
Sch 40

3. What is Hydronics?
Loosen the far bolts first
Equalizing line
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut
The science of heat transfer using water.

4. The specific gravity of a liquid can only be measured using the following instrument...
Flashing
Large end to smaller end to center(bull)
Dry expansion type
hydrometer

5. The type of drawing that views a building by looking directly at the front - top and side is referred to as a/an ___________ drawing.
Notify response team and allow them to rescue.
orthographic
Condensate pump size
.075lbs

6. Which one of the following measures and takes action?
25 feet
The type of coating and current
75 degrees - also 4 to 1
Controller

7. Which of the following constants are used when working with circles and areas?
To chemically prepare the pieces for soldering
.01745 - 3.1416 - and .7854
Dry expansion type
Air

8. What is the expansion and compression of water vapor in a pump?
take-off must be subtracted from the end-to-center measurement.
Ground Fault Circuit Interrupter
Cavitation
75 degrees - also 4 to 1

9. What do the first two digits mean in E7018 electrodes?
The tensile strength of the rod in PSI times 1 -000
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
Forced convection - because the FAN forces convection!
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.

10. When loosening the bolts on a flange one should...
4 1/2'(inch)
The flow of a liquid into a small space
.01745 - 3.1416 - and .7854
Loosen the far bolts first

11. In a piping installation allowing for expansion in two directions - how should the anchor(s) and guide(s) be positioned relative to each other?
Guide - Anchor - Guide
BCuP - Stands for Brazed Copper Phosphorus
Snubber
Neutral

12. For an extension ladder to be at the correct angle for safe use on a working surface 20ft high. The ladder must be located how many feet away from the base?
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.
handle will bend
Basket
Segmental

13. What is the purpose for a weep hole in a saddle pad?
Bumping
supporter of combustion
Allow moisture to escape
Sch 40

14. One gallon of water occupies how many cubic feet?
To protect the threads from rust.
Yellow.. think Dee Double U is yelloWWW
Sch 80 Steel pipe
.135 cu ft

15. If the travel of a 45 degree offset is known - what formula can be used to find the advance?
.707 x Travel
Sch 80 Steel pipe
BUT
Raise the load

16. A device that mechanically attaches to the side of a flange on a beam is called a...
Raise the load
Beam clamp
Cavitation
steam and condensate flowing in the same direction

17. What type of valve should be used to bypass a control valve?
Globe valve
25 feet
4 1/2'(inch)
an eccentric reducer flat on top

18. The main cause of undercutting is...
Continuously
Globe valve
Too fast of a travel rate
near the middle of the jaws

19. Why is it necessary to use roller hangers?
To allow for thermal movement
Neutral
To provide movement cause from a change in temperature
Large end to smaller end to center(bull)

20. What type of copper is recommended for refrigeration?
ALWAYS
Equalizing line
Air
Type K

21. Formula for a cubic foot of an unknown substances weight?
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
Beam clamp
Magnesium
the type of coating and current

22. A thermostatic steam trap that fails in the closed position would cause a heating unit to become...
Waterlogged
62.4lbs
Not to scale - does not show locations of equipment. It shows pipe size and flow.
(Total Height - Elevation) * .433 = psig

23. Which of the following is NOT a reason for using cutting oil when threading pipe?
steam and condensate flowing in the same direction
In a pressure gauge
Dry expansion type
To protect the threads from rust.

24. The weight of 1 cubic foot of water is...
Pressuretrol
2.31ft
62.4lbs
pi * radius squared

25. A vertical line in an isometric drawing represents...
Divide the diameter by half 4 times - put the 2nd and 4th number together to get the answer. Example - 6'(inch) 45 would be - 6 - 3 - 1 1/2 and 3/4. Answer 3 3/4'(inch)
Up and Down
Material Safety Data Sheet
Flooded

26. Steam in contact with the water it has been generated from is known as ________________ steam.
Saturated
falls
Basket
62.4lbs

27. Momentarily closing the starting switch to check the rotation of the pump is known as __________ the pump.
Bumping
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
4 1/2'(inch)
the core

28. Since _______________ is virtually incompressible - pressure has little effect on its volume.
Water
Latent
Act as a safety device to shut off the motor if the operator's foot is removed from the switch.
Not to scale - does not show locations of equipment. It shows pipe size and flow.

29. One cubic foot of water weighs?
62.4 pounds
Flooded
3 1/2'(inch)
Anchors

30. A gallon of water weighs...
Type K
250 degrees
To protect the threads from rust.
8.33lbs

31. What does the evaporator do?
West of the building
Flux
(Total Height - Elevation) * .433 = psig
On low side of the system and expands liquid to low pressure gas.

32. What are the three rope parts used in tying knots and hitches?
Pipe penetration
The system temperature - thermal and dynamic movement of the pipe and vibration.
Cavitation
Bight - running end and standing part

33. Which rigging configuration has the greatest sling strength?
Basket
Flux
Never
Flooded

34. How much does 1 cubic foot of air weigh?
.075lbs
Not to scale - does not show locations of equipment. It shows pipe size and flow.
Green... think KKelly GREEN
1

35. An abrasive wheel should never run faster than it...
maximum rated capacity
zinc
Bight - running end and standing part
5 9/16'(inch)

36. When is it safe to remove the old packing from a valve that is under pressure?
NEVER!
MAPP - acetylene - and propane
.707 x Travel
the employer

37. To order a reducing tee you should specify the size by...
MAPP - acetylene - and propane
Pressure rating
Vaporization
Large end to smaller end to center(bull)

38. To view the west elevation the viewer's perspective is from the...
.135 cu ft
West of the building
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.
8 5/8'(inch)

39. What size hole should be cut into a main to saddle IN a smaller pipe?
Above the main
The stud bolt is stronger than a machine bolt of the same size and material.
8.33 pounds
The same OD as the branch

40. One gallon of water weighs?
Pressure Rating
13/16'(inch)
Sch 40
8.33 pounds

41. OD for 6'(inch)

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42. The best method to ensure that a plastic joint is made properly - you should...
compression
Insert pipe into fitting and turn 1/4 turn and hold
15 PSI
Continuously

43. You should never blow your clothes off with oxygen because oxygen is a/an
radius squared times PI
supporter of combustion
Erratic readings
Spiral Wound

44. The ______ is used to protect the weld puddle from contamination in the SMAW process.
Flux
radius squared times PI
Hydrostatics
Loosen the far bolts first

45. What does a condenser do?
To protect the threads from rust.
1 5/16'(inch)
On high side of the system and turns gas to liquid.
To chemically prepare the pieces for soldering

46. When leaning a ladder against an object - the ladder should be at an approximate angle of __________ degrees.
.0361
75 degrees - also 4 to 1
no valves permitted
Above the main

47. The last two digits on an E-6010 electrode specify...
Manometer
Ammonia
14.7 psia
the type of coating and current

48. When should you ream the end of a pipe?
Thermostatic - Thermodynamic and Mechanical
8 5/8'(inch)
After cutting
Red.. think M&M is RED

49. Which is the correct formula for the area of a circle?
.7854 x D squared
Beam clamp
.01745 - 3.1416 - and .7854
Cavitation

50. The color code for ACR copper is...
Large end to smaller end to center(bull)
handle will bend
15 Feet
Crimson... think aCRimson