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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. What does the crane signal with the index finger pointed forward in a swirling motion signal?
Multiply the length of the hypotenuse of the roll and the set by 1.414
To allow for thermal movement
1728
Raise the load

2. The main cause of undercutting is...
Protection for loss of water in the boiler.
Tagged and removed from service.
Center of the pipe
Too fast of a travel rate

3. 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?
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut
Down Stream
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.
Before the strainer and fully open.

4. Which of the following types of clamps are used to dampen a pipe's movement?
Snubber
Raise the load
Flooded
The impeller

5. What are the main differences between soldering and brazing?
OD
Ammonia
The temperature that the joints are made - the flux and temperatures of the system
4 times

6. A device that mechanically attaches to the side of a flange on a beam is called a...
Spiral
To protect the threads from rust.
handle will bend
Beam clamp

7. In the cooling cycle - which component throttles the flow of refrigerant?
Absolute
Never
Expansion Device
14.7 psia

8. The symbol for pi is equivalent to...
3.1416
13/16'(inch)
MAPP - acetylene - and propane
Magnesium

9. A thermostatic steam trap that fails in the closed position would cause a heating unit to become...
Red.. think M&M is RED
Waterlogged
Eccentric reducers - flat on top
Protection for loss of water in the boiler.

10. OD for 2'(inch)

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11. .433 psig is equal to how high of a water column?
On low side of the system and expands liquid to low pressure gas.
15 Feet
1 foot
When a large volume of condensate is generated

12. What does GFCI stand for?
The pump creates a differential in pressure that moves the water.
Ground Fault Circuit Interrupter
radius squared times PI
BCuP - Stands for Brazed Copper Phosphorus

13. A tag line should be used on a crane lift...
Yellow.. think Dee Double U is yelloWWW
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.
Hydrostatics
ALWAYS

14. When should you ream the end of a pipe?
Ammonia
bowline on a bight
After cutting
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.

15. A single line drawing of a piping system represents the...
Sch 80 Steel pipe
Spiral
7.48
Center of the pipe

16. To properly align a flange you must perform what is commonly called a ______ hole...
Climbing the cross braces.
Sensor
Alloying
Two Hole

17. What does a condenser do?
Point at the base and sweep the base with the extinguisher
Bumping
None
On high side of the system and turns gas to liquid.

18. Horizontal steam supply piping should be reduced in size by using...
Air
Pressure Rating
Eccentric reducer (flat on top)
Choked position

19. If a horizontal pipe connecting to the suction side of a pump requires a reducer - it should be connected with...
Softener
Insert pipe into fitting and turn 1/4 turn and hold
an eccentric reducer flat on top
2 and 1

20. The purpose of the foot switch on a power-operated pipe cutting and threading machine is to?

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21. What is the main reason for the taper on a pipe thread?
Insure progressively tighter fit
falls
To protect the threads from rust.
Flux

22. How far should a copper tube be inserted into a cup for a brazed joint?
Forced convection - because the FAN forces convection!
.433psi
All the way to the shoulder
62.4

23. The type of valve permitted downstream of a temperature and pressure relief valve on a water heater is...
no valves permitted
25' from any worker
The flow of a liquid into a small space
To reduce the pressure from the cylinders to safe and workable pressures

24. The specific gravity of a gas is relative to the specific weight of _______________ - which has a specific gravity of one.
Eccentric reducer (flat on top)
Remove the packing
Air
180

25. The device that controls the pressure in a low pressure steam boiler is called a...
5 9/16'(inch)
Pressuretrol
maximum rated capacity
The pump creates a differential in pressure that moves the water.

26. How often should the atmosphere be tested in a confined space?
Continuously
Two Hole
None
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut

27. OD for 3'(inch)

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28. To determine the set on a 45 degree offset you would multiply the travel by...
.707
Ammonia
Positive
an eccentric reducer flat on top

29. Steam in contact with the water it has been generated from is known as ________________ steam.
Its cheaper!
Saturated
2.31ft
15 Feet

30. When ordering ACR copper specify the size by...
Red.. think M&M is RED
1/2 BTU
OD
Dry expansion type

31. One pound of water pressure is equal to...
Globe valve
Forced convection - because the FAN forces convection!
.707 x Travel
2.31ft

32. What is the minimum thickness for threading PVC pipe?
Alloying
Backflow preventer
Sch 40
return fitting

33. Calculate head pressure of a vertical pipe at specific elevations.
Spiral Wound
West of the building
(Total Height - Elevation) * .433 = psig
foot valve

34. What is the formula to figure the area of a circle?
radius squared times PI
Dry expansion type
.625
Bumping

35. The color code for type '(inch)K'(inch) copper is?
To provide movement cause from a change in temperature
.01745 - 3.1416 - and .7854
Green
Strainer

36. There are __________ cubic inches in a gallon.
Expansion Device
Loosen the far bolts first
Saturated
231

37. Steam condensate lines should use...
Globe
Sch 80 Steel pipe
All the way to the shoulder
Coating

38. What size hole should be cut into a main to saddle ON a smaller pipe?
(Total Height - Elevation) * .433 = psig
The same ID as the branch
A pry bar
The flux is in the filler material

39. There are __________ gallons in a cubic foot.
7.48
Absolute
ALWAYS
Never

40. A guard rail system must withstand a minimum force of __________ pounds.
Allow moisture to escape
Softens it
200 lbs
1 5/16'(inch)

41. The only entity that has the responsibility and authority to appoint the competent person is...
the employer
Segmental
In the direction of flow
Coating

42. What type of copper is recommended for refrigeration?
Type K
soft tempered
Dog Everything
Groove

43. Which way should the bevel face on an orifice plate?
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)
take-off must be subtracted from the end-to-center measurement.
Choked position
Down Stream

44. What type of valve should be used to bypass a control valve?
Ground Fault Circuit Interrupter
Blue... think b-LLLLue
Globe valve
Not to scale - does not show locations of equipment. It shows pipe size and flow.

45. What type of Copper tubing is not identified by color on the tubing itself?
Flashing
250 degrees
soft tempered
Mechanical/Thermostatic

46. Why is it necessary to use flux on a soldered joint?
set point
Clove hitch with a half hitch
Sch 80 Steel pipe
To chemically prepare the pieces for soldering

47. Where should the high pressure condensate be piped to before entering the receiver?
Fusion
.075lbs
Flash Tank
Erratic readings

48. A concentric reducer could be used to connect to a horizontal pump _______________ line.
Anchors
discharge
8 5/8'(inch)
Hydraulics

49. Where is a bourdon tube found?
Ball joint - Bellows Joint and Packed Joint
set point
In a pressure gauge
Conduction - convection and radiant.

50. Exits from a trench 150' long and 4' deep must be located within how many feet of a worker in the trench?
MAPP - acetylene - and propane
25 feet
tangent 1/2 angle x radius
13/16'(inch)