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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. A dielectric fitting should be used on...
hydrometer
Vaporization
Hydrostatic
steel to copper joints

2. What is installed after the isolation valve and before the trap union on a standard trap assembly?
1/2 BTU
Strainer
Clean all surfaces
radius squared times PI

3. When should a person designated as an attendant attempt to rescue a worker that is trapped?
Raise the load
62.4lbs
Crimson... think aCRimson
Never

4. What is capillary action?
Insure progressively tighter fit
The flow of a liquid into a small space
4 times
Blue... think b-LLLLue

5. What are the three types of steam traps?
Solder joints
The flux burns and the joint becomes ineffective
Thermostatic - Thermodynamic and Mechanical
near the middle of the jaws

6. What type of copper is recommended for refrigeration?
The tensile strength of the rod in PSI times 1 -000
Type K
Guide - Anchor - Guide
Blue... think b-LLLLue

7. One gallon of water weighs?
2 and 1
8.33 pounds
Height * .433 = psig
14.7psia - always in PSI-A

8. All of the following are process control elements EXCEPT...
maximum rated capacity
piping
Act as a safety device to shut off the motor if the operator's foot is removed from the switch.
Neutral

9. The last two digits on an E-6010 electrode specify
The type of coating and current
Solder joints
A pry bar
Hazard prevention and control.

10. Which of the following is NOT a reason for using cutting oil when threading pipe?
Prevailing wind speed and direction - environmental concerns - zoning requirements
The tubing has been cleaned for oxygen service
Globe valve
To protect the threads from rust.

11. One foot of water exerts...
galvanized
3 to 15 psi
.433psi
36'(inch)

12. The color code for type K copper is...
Green... think KKelly GREEN
The stud bolt is stronger than a machine bolt of the same size and material.
the core
Saturated

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

14. Guides are used near...
Red.. think M&M is RED
Anchors
Mechanical return is used.
Flooded

15. When selecting a hanger for a piping system you should consider...
Hazard prevention and control.
1 5/16'(inch)
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
The system temperature - thermal and dynamic movement of the pipe and vibration.

16. When is it safe to remove the old packing from a valve that is under pressure?
(Total Height - Elevation) * .433 = psig
2.31ft
NEVER!
Hydrostatics

17. What is Hydronics?
13/16'(inch)
Capillary action
Height * .433 = psig
The science of heat transfer using water.

18. OD for 3'(inch)

19. The type of drawing that views a building by looking directly at the front - top and side is referred to as a/an ___________ drawing.
Pipe strain
orthographic
Forced convection - because the FAN forces convection!
Latent

20. To sense the temperature remotely from the thermostat location you would use...
discharge
14.7 psia
Remote bulb
On low side of the system and expands liquid to low pressure gas.

21. The proper way to extinguish a fire is to...
Point at the base and sweep the base with the extinguisher
62.4lbs
Mechanical return is used.
Multiply the length of the hypotenuse of the roll and the set by 1.414

22. What is the sum of all angles in a triangle?
All position
Flux
180
cool and lubricate the die

23. A triple-duty valve is installed...
Flat and horizontal positions
Flash Tank
In the hot water heating pumps discharge piping.
The flux burns and the joint becomes ineffective

24. The specific weight of mercury is...
.0361
Point at the base and sweep the base with the extinguisher
The impeller
an eccentric reducer flat on top

25. Oil is used on a pipe machine to...
handle will bend
Increase the pressure when the temperature increases
Equalizing line
cool and lubricate the die

26. Which rigging configuration has the greatest sling strength?
On low side of the system and expands liquid to low pressure gas.
Insure progressively tighter fit
Basket
orthographic

27. What has the largest effect on pump alignment?
75 degrees - also 4 to 1
Arrange a wire rope clamp so that the dead end has the U bolts
Pipe strain
Dog Everything

28. An oil separator is required on systems using...
Insufficient condensate drainage
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
4 1/2'(inch)
Ammonia

29. Since _______________ is virtually incompressible - pressure has little effect on its volume.
Green
25 feet
Water
To provide movement cause from a change in temperature

30. What type of valve should be used to bypass a control valve?
Solder joints
Choked position
Globe valve
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.

31. What type of flame should be used to cut carbon steel?
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
Never
soft tempered
Neutral

32. A simple example of a lever is...
Primer
Eccentric reducers - flat on top
Increase the pressure when the temperature increases
A pry bar

33. Steam condensate lines should be installed on...
Down Stream
Set point
62.4lbs
Roller hangers

34. One pound of water pressure is equal to...
1.25'(inch)
2.31ft
West of the building
Type K

35. When should you ream the end of a pipe?
After cutting
Hydrostatics
DWV
Material Safety Data Sheet

36. You should never blow your clothes off with oxygen because oxygen is a/an
The flux is in the filler material
Body belts
Erratic readings
supporter of combustion

37. Standard atmospheric pressure at sea level is _____...
lower hook
4 1/2'(inch)
14.7 psia
1728

38. How much heat is required to raise 1/2 pound of water 1 degree F?
1/2 BTU
The flux burns and the joint becomes ineffective
Type K
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

39. What does the stamp Oxy-Med stand for on copper tubing?
The tubing has been cleaned for oxygen service
an eccentric reducer flat on top
orthographic
Expansion Device

40. When brazing for medical gas or refrigeration always...
Purge the line when brazing
Green... think KKelly GREEN
handle will bend
All the way to the shoulder

41. An abrasive wheel should never run faster than it...
All the way to the shoulder
1 5/16'(inch)
maximum rated capacity
dry expansion

42. An up-feed steam heating system has the heating units...
Manometer
840
Above the main
Allow moisture to escape

43. The sum of atmospheric and gauge pressure is known as __________ pressure.
Absolute
Strainer
3.1416
8 5/8'(inch)

44. How far should a copper tube be inserted into a cup for a brazed joint?
BUT
dry expansion
West of the building
All the way to the shoulder

45. Why is it necessary to use flux on a soldered joint?
Magnesium
near the middle of the jaws
On high side of the system and turns gas to liquid.
To chemically prepare the pieces for soldering

46. Momentarily closing the starting switch to check the rotation of the pump is known as __________ the pump.
lower hook
Bumping
Saturated
Groove

47. The type of drawing that most closely resembles an object as the eye would see it is referred to as a/an __________ drawing.
true isometric
Bight - running end and standing part
Absolute
Segmental

48. The color code for type '(inch)K'(inch) copper is?
return fitting
Green
Anchors
the core

49. The symbol for pi is equivalent to...
3.1416
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
DWV
Neutral

50. Although the model codes usually say the melting point of a brazing alloy must be at least 1000º F - the technical temperature specified by the Copper Development Association and the American Welding Society is __________ degrees Fahrenheit.
840
Conduction - convection and radiant.
Globe
.625

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