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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. How far should a copper tube be inserted into a cup for a brazed joint?
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
Increase in friction
All the way to the shoulder
Dog Everything

2. Which of the following is a key element of a comprehensive safety and health program?
an eccentric reducer flat on top
.135 cu ft
Hazard prevention and control.
With the weld at a 45 degree angle

3. What does the term '(inch)never saddle a dead horse'(inch) mean?
Arrange a wire rope clamp so that the dead end has the U bolts
9
The tensile strength of the rod in PSI times 1 -000
When a large volume of condensate is generated

4. When brazing for medical gas or refrigeration always...
Purge the line when brazing
.01745 - 3.1416 - and .7854
Pipe strain
Magnesium

5. The amount of heat necessary bring about a change of state from solid to liquid or liquid to gas is known as _______________ heat.
6 5/8'(inch)
34 feet
Latent
Globe valve

6. What is the purpose of the oxygen and acetylene regulators?
180
Absolute
To reduce the pressure from the cylinders to safe and workable pressures
Eccentric reducers - flat on top

7. An abrasive wheel should never run faster than it...
(Total Height - Elevation) * .433 = psig
maximum rated capacity
Tagged and removed from service.
Vaporization

8. One cubic foot of water weighs?
Fusion
sewage
Red.. think M&M is RED
62.4 pounds

9. With a high pressure valve you should never _____ under pressure.
MAPP - acetylene - and propane
None
3 to 15 psi
Remove the packing

10. What is the minimum thickness for threading PVC pipe?
Sch 40
Flux
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut
The flux is in the filler material

11. How much heat is required to raise 1/2 pound of water 1 degree F?
Remove the packing
Clean all surfaces
1/2 BTU
Yellow.. think Dee Double U is yelloWWW

12. Which of the following is sometimes used as a shielding gas in the GTAW process?
231
Argon
3 to 15 psi
steam and condensate flowing in the same direction

13. 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
75 degrees - also 4 to 1
the employer
Latent

14. The pipe fitting that makes a 180 degree turn is called a/an?
Increase
Allow moisture to escape
radius squared times PI
return fitting

15. Condensate lines should be pitched...
In the direction of flow
62.4lbs
lower hook
1

16. One gallon of water occupies how many cubic feet?
.135 cu ft
4 to 20 milliamps
Sch 80 Steel pipe
zinc

17. OD for 1'(inch)

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18. The ______ is used to protect the weld puddle from contamination in the SMAW process.
Dry expansion type
Arrange a wire rope clamp so that the dead end has the U bolts
Bight - running end and standing part
Flux

19. An up-feed steam heating system has the heating units...
Roller hangers
Above the main
the core
The stud bolt is stronger than a machine bolt of the same size and material.

20. Which one of the following measures and takes action?
Flat position only
piping
2 and 1
Controller

21. When arranging weld coupons for testing position 6G...
West of the building
Increase
Axis of pipe should be on a 45 degree
sewage

22. What type of copper is recommended for refrigeration?
Type K
Segmental
blow the valves for a moment
To allow for thermal movement

23. A mixing valve has ___ inlets and ___ outlets.
Above the main
14.7psia - always in PSI-A
2 and 1
Neutral

24. What causes water to move in a Hydronic system?
The pump creates a differential in pressure that moves the water.
Controller
4 times
Hazard prevention and control.

25. Which of the elements of a wire rope aid in absorbing '(inch)Shock Loads'(inch)?
In the direction of flow
the core
25 feet
8.33lbs

26. Steam supply using parallel flow is...
Softens it
zinc
steam and condensate flowing in the same direction
The flux burns and the joint becomes ineffective

27. The pipe that connects the steam header to the boiler return connection is the...
Quarter
Increase in friction
Hydrostatics
Equalizing line

28. When a liquid changes immediately to a vapor it is called...
Multiply the length of the hypotenuse of the roll and the set by 1.414
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
Flashing
36'(inch)

29. How many 2'(inch) pipes can be supplied from a 6'(inch) header?
Multiply the length of the hypotenuse of the roll and the set by 1.414
840
231
9

30. Before attaching regulators to an oxygen cylinder...
.707 x Travel
blow the valves for a moment
DWV
The same OD as the branch

31. What is the standard for an electronic signal?
Valve
The impeller
When a large volume of condensate is generated
4 to 20 milliamps

32. To fabricate a 60 degree elbow from a 90 you would...
Air Bound
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut
1728
Spiral

33. What is the sum of all angles in a triangle?
Guide - Anchor - Guide
180
Hydrostatic
Clean all surfaces

34. One pound of water pressure is equal to...
15 Feet
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
Equalizing line
2.31ft

35. 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?
4 times
25' from any worker
Water
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.

36. What does a + plus sign mean?
The stud bolt is stronger than a machine bolt of the same size and material.
Pipe penetration
Primer
Forced convection - because the FAN forces convection!

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

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38. What causes pressure drop?
Too fast of a travel rate
Yellow.. think Dee Double U is yelloWWW
Point at the base and sweep the base with the extinguisher
Increase in friction

39. Which of the following is an essential element necessary to produce an ordinary fire?
Fuel - Heat - Oxygen
Raise the load
Protection for loss of water in the boiler.
7.0

40. What should be done to prepare a flange for the gasket installation?
15 Feet
Remove any paint or rust.
1.25'(inch)
Point at the base and sweep the base with the extinguisher

41. When using a cable come-a-long - what safety device will indicate overloading?
Snubber
The system temperature - thermal and dynamic movement of the pipe and vibration.
The temperature that the joints are made - the flux and temperatures of the system
handle will bend

42. The last digit on a welding electrode refers to the __________ of the electrode.
Ball joint - Bellows Joint and Packed Joint
the type of coating and current
Flux
Coating

43. What is the function of the covering on the electrodes during the process of '(inch)Shielded Metal Arc Welding'(inch)?
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.
Flat and horizontal positions
BCuP - Stands for Brazed Copper Phosphorus

44. When a pipe size is decreased by half - the carrying capacity of the pipe decreases by...
steel to copper joints
Eccentric reducers - flat on top
Quarter
Expansion Device

45. OD for 3'(inch)

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46. The only entity that has the responsibility and authority to appoint the competent person is...
Continuously
Argon
8 5/8'(inch)
the employer

47. OSHA was enacted to...
lower hook
discharge
protect worker safety and health
Groove

48. How do you determine gear ratios?

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49. The letters MSDS stand for...
Air Bound
.707
Prevailing wind speed and direction - environmental concerns - zoning requirements
Material Safety Data Sheet

50. In a refrigeration system a condensable gas is...
.7854 x D squared
Remove the packing
Ammonia
near the middle of the jaws