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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 pipe fitting that makes a 180 degree turn is called a/an?
The stud bolt is stronger than a machine bolt of the same size and material.
Coating
return fitting
the core

2. When changing pipe sizes in the horizontal supply or return lines of a two-pipe hot water heating system use...
Eccentric reducers - flat on top
8 5/8'(inch)
Climbing the cross braces.
4 1/2'(inch)

3. To determine the travel for a 45 degree rolling offset you would...
Multiply the length of the hypotenuse of the roll and the set by 1.414
Controller
return fitting
Loosen the far bolts first

4. The best method to ensure that a plastic joint is made properly - you should...
All the way to the shoulder
Insert pipe into fitting and turn 1/4 turn and hold
Two Hole
Strainer

5. What is the formula to figure the area of a circle?
radius squared times PI
4 times
The temperature that the joints are made - the flux and temperatures of the system
near the middle of the jaws

6. The proper way to extinguish a fire is to...
25 feet
Remove the packing
Schedule 10
Point at the base and sweep the base with the extinguisher

7. What is the purpose of the oxygen and acetylene regulators?
To reduce the pressure from the cylinders to safe and workable pressures
Hydraulics
2 and 1
BCuP - Stands for Brazed Copper Phosphorus

8. Which of the following is sometimes used as a shielding gas in the GTAW process?
Fusion
Insure progressively tighter fit
the employer
Argon

9. Steam condensate lines should use...
Sch 80 Steel pipe
Insert pipe into fitting and turn 1/4 turn and hold
OD
Point at the base and sweep the base with the extinguisher

10. With a high pressure valve you should never _____ under pressure.
Remove the packing
Spiral
Condensate pump size
To provide movement cause from a change in temperature

11. If a pump is operating under static suction lift conditions - a __________ may be installed in the suction line to avoid losing the pump's prime each time the pump shuts off.
foot valve
Neutral
Blue... think b-LLLLue
To reduce the pressure from the cylinders to safe and workable pressures

12. The color code for ACR copper is...
Solder joints
Notify response team and allow them to rescue.
Crimson... think aCRimson
ALWAYS

13. When selecting a hanger for a piping system you should consider...
The system temperature - thermal and dynamic movement of the pipe and vibration.
Dog Everything
tangent 1/2 angle x radius
Air

14. What is not a requirement to size the steam trap on a heating unit?
On low side of the system and expands liquid to low pressure gas.
231
Remove any paint or rust.
Condensate pump size

15. A condensate receiver is used when...
cool and lubricate the die
1 5/16'(inch)
To chemically prepare the pieces for soldering
When a large volume of condensate is generated

16. Steam condensate lines should be installed on...
Valve
Roller hangers
The Evaporator
The type of coating and current

17. Why is it necessary to use roller hangers?
protect worker safety and health
Pressure rating
To allow for thermal movement
25' from any worker

18. The color code for DWV copper is...
Pipe penetration
Before the strainer and fully open.
Latent
Yellow.. think Dee Double U is yelloWWW

19. The only entity that has the responsibility and authority to appoint the competent person is...
Arrange a wire rope clamp so that the dead end has the U bolts
foot valve
the employer
steam and condensate flowing in the same direction

20. What would be the result of an incorrectly installed orifice plate?
1
Erratic readings
Sch 40
.491lbs

21. What is the minimum safe clearance between cranes and energized power lines operating at 50kV or below?
10 feet
Flooded
4 times
Arrange a wire rope clamp so that the dead end has the U bolts

22. What is the maximum pressure for an acetylene hose?
15 PSI
Pipe strain
Crimson... think aCRimson
Cavitation

23. Guides are used near...
All position
14.7 psia
Anchors
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.

24. Which of the following is an essential element necessary to produce an ordinary fire?
Fuel - Heat - Oxygen
Never
250 degrees
soft tempered

25. Capillary action is used in...
On low side of the system and expands liquid to low pressure gas.
Solder joints
25' from any worker
Clean all surfaces

26. Which one of the following measures and takes action?
zinc
14.7psia - always in PSI-A
62.4
Controller

27. When lifting objects with sharp edges you should use a...
foot valve
Spiral Wound
Quarter
Softener

28. What should be done first when preparing a copper joint?
1 5/16'(inch)
Yellow.. think Dee Double U is yelloWWW
Clean all surfaces
75 degrees - also 4 to 1

29. The face to center measurement of any welded angle fitting equals...
tangent 1/2 angle x radius
The impeller
15 Feet
BUT

30. What is the function of the covering on the electrodes during the process of '(inch)Shielded Metal Arc Welding'(inch)?
231
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.
250 degrees
Clean all surfaces

31. What type of copper tubing joint requires use of a ferrule?
7.0
Fuse
compression
Segmental

32. One gallon of water occupies how many cubic feet?
cool and lubricate the die
.135 cu ft
Green
no valves permitted

33. A rating of 150# refers to a flange's...
Raise the load
Thermostatic - Thermodynamic and Mechanical
62.4
Pressure rating

34. In the cooling cycle - which component throttles the flow of refrigerant?
Ammonia
On high side of the system and turns gas to liquid.
Expansion Device
100% of the rated capacity

35. The function of a steam trap is to prevent the flow of ________________ - while allowing condensate and non-condensable gases to pass through.
Groove
Solder joints
Sch 80 Steel pipe
Steam

36. When arranging weld coupons for testing position 6G...
Flat position only
Axis of pipe should be on a 45 degree
Hydraulics
Expansion loop.

37. What is installed after the isolation valve and before the trap union on a standard trap assembly?
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.
Expansion loop.
The temperature that the joints are made - the flux and temperatures of the system
Strainer

38. 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?
BCuP - Stands for Brazed Copper Phosphorus
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.
Segmental
take-off must be subtracted from the end-to-center measurement.

39. The main cause of undercutting is...
2 3/8'(inch)
Too fast of a travel rate
take-off must be subtracted from the end-to-center measurement.
Clove hitch with a half hitch

40. Which of the following is NOT a reason to use stud bolts instead of machine bolts for bolting flanged piping joints?
The stud bolt is stronger than a machine bolt of the same size and material.
840
Expansion loop.
Alloying

41. Condensate lines should be pitched...
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut
In the direction of flow
.491lbs
25 feet

42. The density of 1 cubic inch of Mercury is...
.491lbs
MAPP - acetylene - and propane
Alloying
Strainer

43. What is the formula to figure take off on a 45 degree elbow?

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44. What is the best valve for throttling?
Set point
Globe
Fuse
Notify response team and allow them to rescue.

45. OD for 8'(inch)

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46. Since _______________ is virtually incompressible - pressure has little effect on its volume.
Above the main
soft tempered
Water
Before the strainer and fully open.

47. Annealing copper...
62.4 pounds
Red.. think M&M is RED
protect worker safety and health
Softens it

48. A Hartford loop is used for...
steam and condensate flowing in the same direction
piping
Spring hanger
Protection for loss of water in the boiler.

49. On a centrifugal pump what is rotated by the motor?
Schedule 10
The impeller
blow the valves for a moment
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

50. An exit from a trench should be no more than...

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