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Plumbing Certification

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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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 is the welding position 2 - on the electrode mean?
9
Type K
Flat and horizontal positions
Argon

2. Both soldered and brazed joints are made by heating a properly prepared joint to the proper temperature and the flowing of a filler metal by means of...
maximum rated capacity
piping
Act as a safety device to shut off the motor if the operator's foot is removed from the switch.
Capillary action

3. OD for 6'(inch)

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4. What type of flame should be used to cut carbon steel?
Neutral
pi * radius squared
62.4
10 feet

5. What type of hanger uses a spring that splits the rod?
Schedule 10
The tensile strength of the rod in PSI times 1 -000
Argon
Spring hanger

6. Which of the following methods of access to a scaffold is prohibited?
62.4 pounds
250 degrees
Climbing the cross braces.
Multiply the length of the hypotenuse of the roll and the set by 1.414

7. In a Hydronic heating system - units at the top of the system not heating are likely to be...
Air Bound
MAPP - acetylene - and propane
1728
Raise the load

8. An increase in pressure will cause the boiling point of water to ________...
The flux is in the filler material
Up and Down
Increase
14'(inch)

9. What is the specific gravity of water?
In the hot water heating pumps discharge piping.
7.0
Snubber
1

10. Calculate head pressure in a section of vertical pipe?
Height * .433 = psig
Saturated
Ball joint - Bellows Joint and Packed Joint
Valve

11. To determine the set on a 45 degree offset you would multiply the travel by...
.707
Axis of pipe should be on a 45 degree
Dog Everything
Ammonia

12. What is typically a final control element?
Insert pipe into fitting and turn 1/4 turn and hold
To protect the threads from rust.
Eccentric reducers - flat on top
Valve

13. The last two digits on an E-6010 electrode specify...
34 feet
On high side of the system and turns gas to liquid.
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
the type of coating and current

14. What should be done first when preparing a copper joint?
Conduction - convection and radiant.
Remote bulb
Clean all surfaces
Immersion sensor

15. Which one of the following measures and takes action?
Hydrostatic
Controller
Too fast of a travel rate
The flow of a liquid into a small space

16. How often should the atmosphere be tested in a confined space?
Continuously
2 and 1
.707 x Travel
MAPP - acetylene - and propane

17. The pipe that connects the steam header to the boiler return connection is the...
Point at the base and sweep the base with the extinguisher
The type of coating and current
Equalizing line
Coating

18. The best knot to use when lifting pipe vertically is the...
Clove hitch with a half hitch
.0361
Dog Everything
1 foot

19. The specific weight of mercury is...
Pneumatics
.0361
Basket
Height * .433 = psig

20. Zinc chills or metal fume fever are caused from welding on __________ steel.
Climbing the cross braces.
To provide movement cause from a change in temperature
Red.. think M&M is RED
galvanized

21. When a soldered joint is overheated...
Purge the line when brazing
2.31ft
The flux burns and the joint becomes ineffective
Not to scale - does not show locations of equipment. It shows pipe size and flow.

22. How much heat is required to raise 1/2 pound of water 1 degree F?
DWV
Dry expansion type
2nd gear divided by primary gear. Example: A machine has a primary pulley of 6'(inch) and a secondary pulley of 24'(inch). Formula is 24/6=4 - so the ratio is 4 to 1
1/2 BTU

23. Which type of orifice plate is designed to measure flow of liquids containing solids?
(Total Height - Elevation) * .433 = psig
With the weld at a 45 degree angle
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
Segmental

24. Which of the following is NOT a reason to use stud bolts instead of machine bolts for bolting flanged piping joints?
Material Safety Data Sheet
Basket
The stud bolt is stronger than a machine bolt of the same size and material.
bowline on a bight

25. How much does 1 cubic foot of air weigh?
Green... think KKelly GREEN
3 1/2'(inch)
Condensate pump size
.075lbs

26. The color code for type '(inch)K'(inch) copper is?
set point
3 to 15 psi
Green
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.

27. When arranging weld coupons for testing position 6G...
Axis of pipe should be on a 45 degree
MAPP - acetylene - and propane
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)
4 to 20 milliamps

28. What is the purpose for a weep hole in a saddle pad?
.01745 - 3.1416 - and .7854
Globe
.075lbs
Allow moisture to escape

29. A simple example of a lever is...
Water
Down Stream
A pry bar
NEVER!

30. When a cranes signaler's hand is pointed up with his finger moving in a circle it means to...
Water
Hydraulics
Ammonia
Raise the load

31. To stop all crane movement the ______ signal should be used.
Above the main
Dog Everything
1.5
Flat and horizontal positions

32. A thermostatic steam trap that fails in the closed position would cause a heating unit to become...
an eccentric reducer flat on top
Waterlogged
Bight - running end and standing part
To protect the threads from rust.

33. When loosening the bolts on a flange one should...
Loosen the far bolts first
Fuel - Heat - Oxygen
To reduce the pressure from the cylinders to safe and workable pressures
Blue... think b-LLLLue

34. What should be done to prepare a flange for the gasket installation?
Bight - running end and standing part
Strainer
Fusion
Remove any paint or rust.

35. Theoretically - a pump can raise water by suction approximately __________ feet vertically.
62.4
34 feet
The type of coating and current
NEVER!

36. One pound of water pressure is equal to...
Red.. think M&M is RED
2.31ft
Condensate pump size
Anchors

37. In the cooling cycle - which component throttles the flow of refrigerant?
Blue... think b-LLLLue
4 times
Expansion Device
Fusion

38. Soldered joints should never be used on systems above...
(Total Height - Elevation) * .433 = psig
BUT
250 degrees
14.7psia - always in PSI-A

39. In one cubic foot there are _________ cubic inches.
Green... think KKelly GREEN
Positive
1728
Pressuretrol

40. What size hole should be cut into a main to saddle IN a smaller pipe?
galvanized
The same OD as the branch
Forced convection - because the FAN forces convection!
handle will bend

41. OD for 3'(inch)

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42. What does the stamp Oxy-Med stand for on copper tubing?
The tubing has been cleaned for oxygen service
Set point
Latent
The tensile strength of the rod in PSI times 1 -000

43. What type of sensor is directly in the process stream?
BCuP - Stands for Brazed Copper Phosphorus
Alloying
Immersion sensor
5 9/16'(inch)

44. What type of copper tubing joint requires use of a ferrule?
an eccentric reducer flat on top
Two Hole
The tubing has been cleaned for oxygen service
compression

45. The color code for DWV copper is...
Yellow.. think Dee Double U is yelloWWW
840
Set point
Choked position

46. The pipe size of a pipe changes from the ID to the OD on what pipe size?

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47. What would be the result of an incorrectly installed orifice plate?
Steam
Erratic readings
no valves permitted
Increase the pressure when the temperature increases

48. Oil is used on a pipe machine to...
cool and lubricate the die
steel to copper joints
true isometric
radius squared times PI

49. What does the crane signal with the index finger pointed forward in a swirling motion signal?
Raise the load
protect worker safety and health
Clean all surfaces
Quarter

50. What is the function of the covering on the electrodes during the process of '(inch)Shielded Metal Arc Welding'(inch)?
1728
ALWAYS
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.
2 3/8'(inch)

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Plumbing Certification

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