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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. To sense the temperature remotely from the thermostat location you would use...
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
.075lbs
75 degrees - also 4 to 1
Remote bulb

2. An ejector pump is typically used to pump __________.
Snubber
Strainer
sewage
To provide movement cause from a change in temperature

3. On a centrifugal pump what is rotated by the motor?
231
Clove hitch with a half hitch
The impeller
discharge

4. When arranging weld coupons for testing position 6G...
Axis of pipe should be on a 45 degree
Fuse
Water
Groove

5. Zinc chills or metal fume fever are caused from welding on __________ steel.
Strainer
foot valve
galvanized
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.

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

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7. What is Hydronics?
In the hot water heating pumps discharge piping.
Schedule 10
handle will bend
The science of heat transfer using water.

8. An abrasive wheel should never run faster than it...
62.4lbs
maximum rated capacity
Increase in friction
Point at the base and sweep the base with the extinguisher

9. What type of copper is recommended for refrigeration?
Type K
dry expansion
return fitting
Spiral Wound

10. A direct acting thermostat is used to...
14.7 psia
Increase the pressure when the temperature increases
Insure progressively tighter fit
The flux burns and the joint becomes ineffective

11. What is the formula to calculate thermal expansion?

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12. What is used to soften PVC and remove the gloss?
Hydraulics
Saturated
Tagged and removed from service.
Primer

13. What is the minimum safe clearance between cranes and energized power lines operating at 50kV or below?
Arrange a wire rope clamp so that the dead end has the U bolts
10 feet
Sch 40
34 feet

14. A __________ displacement pump discharges a definite quantity of liquid for each cycle.
The flow of a liquid into a small space
Body belts
Positive
Pipe strain

15. Where should the high pressure condensate be piped to before entering the receiver?
Flash Tank
25' from any worker
The science of heat transfer using water.
Magnesium

16. Ladders with visible defects - such as broken rungs - cracked side rails - or broken steps must be...
orthographic
To chemically prepare the pieces for soldering
Green
Tagged and removed from service.

17. The symbol for pi is equivalent to...
Insure progressively tighter fit
3.1416
Spiral
34 feet

18. What is not a requirement to size the steam trap on a heating unit?
9
Condensate pump size
Dry expansion type
Immersion sensor

19. What does the stamp Oxy-Med stand for on copper tubing?
Pipe strain
62.4lbs
an eccentric reducer flat on top
The tubing has been cleaned for oxygen service

20. Formula for a cubic foot of an unknown substances weight?
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
ALWAYS
orthographic
Ammonia

21. What instrument is best for measuring vacuum?
Mechanical return is used.
The temperature that the joints are made - the flux and temperatures of the system
1.5
Manometer

22. A fan coil uses ______ to distribute heating or cooling to the space.
Continuously
falls
near the middle of the jaws
Forced convection - because the FAN forces convection!

23. What does the crane signal with the index finger pointed forward in a swirling motion signal?
MAPP - acetylene - and propane
1
Raise the load
the type of coating and current

24. A tag line should be used on a crane lift...
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut
ALWAYS
steel to copper joints
.7854 x D squared

25. What should be done first when preparing a copper joint?
5 9/16'(inch)
Magnesium
Clean all surfaces
Pressure Rating

26. The smallest nominal size DWV copper tube is...

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27. What does a condenser do?
return fitting
orthographic
On high side of the system and turns gas to liquid.
14.7 psia

28. When a pipe size is decreased by half - the carrying capacity of the pipe decreases by...
Anchors
4 1/2'(inch)
Quarter
Increase in friction

29. Since _______________ is virtually incompressible - pressure has little effect on its volume.
Water
Discharge
8.33lbs
Expansion Device

30. What type of expansion joint utilizes mechanical movement?
ALWAYS
Insure progressively tighter fit
Ball joint - Bellows Joint and Packed Joint
the core

31. When a cranes signaler's hand is pointed up with his finger moving in a circle it means to...
Red.. think M&M is RED
Sensor
compression
Raise the load

32. What is the best valve for throttling?
Globe
.01745 - 3.1416 - and .7854
Groove
The temperature that the joints are made - the flux and temperatures of the system

33. Which of the following has the largest inside diameter?
8 5/8'(inch)
Schedule 10
Softens it
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.

34. When a loop is needed at any point between ends of a rope - the proper knot to tie is the...
Eccentric reducers - flat on top
Prevailing wind speed and direction - environmental concerns - zoning requirements
Equalizing line
bowline on a bight

35. The change in state from solid to liquid is known as...
Fusion
protect worker safety and health
Remove any paint or rust.
Strainer

36. What has the largest effect on pump alignment?
Pipe strain
Softens it
Fuel - Heat - Oxygen
Eccentric reducer (flat on top)

37. 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...
Before the strainer and fully open.
.075lbs
Red.. think M&M is RED
Capillary action

38. The last two digits on an E-6010 electrode specify...
.707 x Travel
Insure progressively tighter fit
the type of coating and current
2 3/8'(inch)

39. What is the best gasket to use on a flanged joint on medium pressure steam?
Air Bound
Spiral Wound
MAPP - acetylene - and propane
soft tempered

40. The maximum practical suction lift on positive displacement pumps is 22 feet and on centrifugal pumps it is __________ feet.
Mechanical/Thermostatic
Fuse
15 Feet
1728

41. If a horizontal pipe connecting to the suction side of a pump requires a reducer - it should be connected with...
steam and condensate flowing in the same direction
25 feet
an eccentric reducer flat on top
Groove

42. Which of the following is NOT a reason for using cutting oil when threading pipe?
Primer
DWV
Increase the pressure when the temperature increases
To protect the threads from rust.

43. When using a cable come-a-long - what safety device will indicate overloading?
.0361
handle will bend
Flash Tank
Cavitation

44. The ______ is used to protect the weld puddle from contamination in the SMAW process.
Red.. think M&M is RED
Expansion Device
Flux
the employer

45. Which of the following constants are used when working with circles and areas?
The pump creates a differential in pressure that moves the water.
200 lbs
.01745 - 3.1416 - and .7854
8.33 pounds

46. How far should a copper tube be inserted into a cup for a brazed joint?
Flat position only
14'(inch)
The temperature that the joints are made - the flux and temperatures of the system
All the way to the shoulder

47. A simple example of a lever is...
A pry bar
Condensate pump size
steel to copper joints
Sch 40

48. Which of the following is the decimal equivalent of 5/8'(inch)
Capillary action
.625
the type of coating and current
tangent 1/2 angle x radius

49. A schematic drawing is...
None
the type of coating and current
Not to scale - does not show locations of equipment. It shows pipe size and flow.
Controller

50. Guides are used near...
Discharge
Axis of pipe should be on a 45 degree
Never
Anchors