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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. Steam in contact with the water it has been generated from is known as ________________ steam.
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
Saturated
Positive
Sensor

2. What has the largest effect on pump alignment?
The type of coating and current
dry expansion
Pipe strain
OD

3. What is not a requirement to size the steam trap on a heating unit?
bowline on a bight
BUT
Snubber
Condensate pump size

4. Which way should the bevel face on an orifice plate?
zinc
Down Stream
When a large volume of condensate is generated
In the hot water heating pumps discharge piping.

5. Guides are used near...
Anchors
maximum rated capacity
The flux is in the filler material
100% of the rated capacity

6. Before attaching regulators to an oxygen cylinder...
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
lower hook
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
blow the valves for a moment

7. When changing pipe sizes in the horizontal supply or return lines of a two-pipe hot water heating system use...
30 Degrees
Eccentric reducers - flat on top
14'(inch)
Set point

8. The combining of more than one metal is...
steam and condensate flowing in the same direction
9
Alloying
Never

9. What is the sum of all angles in a triangle?
Raise the load
180
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut
3.1416

10. The specific gravity of a liquid can only be measured using the following instrument...
In the hot water heating pumps discharge piping.
hydrometer
Spring hanger
Before the strainer and fully open.

11. One pound of water pressure is equal to...
2.31ft
the core
When a large volume of condensate is generated
Crimson... think aCRimson

12. A neutral reading on the PH scale is...
Increase in friction
Water
Capillary action
7.0

13. What do the first two digits mean in E7018 electrodes?
falls
Thermostatic - Thermodynamic and Mechanical
Raise the load
The tensile strength of the rod in PSI times 1 -000

14. What temperature does water boil at sea level?
212 degrees F
.0361
Climbing the cross braces.
Snubber

15. A bushing is NOT a good replacement for a reducer because...
handle will bend
galvanized
Its cheaper!
The science of heat transfer using water.

16. All of the following are process control elements EXCEPT...
1 foot
piping
30 Degrees
Clean all surfaces

17. What is the maximum pressure for an acetylene hose?
.075lbs
1.5
.433psi
15 PSI

18. If the travel of a 45 degree offset is known - what formula can be used to find the advance?
discharge
Multiply the length of the hypotenuse of the roll and the set by 1.414
.707 x Travel
BUT

19. How much heat is required to raise 1/2 pound of water 1 degree F?
Absolute
steel to copper joints
Flooded
1/2 BTU

20. OD for 1/2'(inch)

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21. Which component in a closed control loop is the primary element?
orthographic
Cavitation
Primer
Sensor

22. What should the outside attendant do to rescue a worker who shows physiological effects of exposure in a confined space?
.01745 - 3.1416 - and .7854
Notify response team and allow them to rescue.
Ammonia
Dog Everything

23. Which of the following is a key element of a comprehensive safety and health program?
Hazard prevention and control.
75 degrees - also 4 to 1
7.48
dry expansion

24. The color code for ACR copper is...
Depends on the desired action if the disc or plug becomes detatched from the stem. (Fail open or Fail closed)
Equalizing line
Crimson... think aCRimson
steel to copper joints

25. To fabricate a 60 degree elbow from a 90 you would...
Softens it
2 3/8'(inch)
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut
piping

26. A mixing valve has ___ inlets and ___ outlets.
Mechanical/Thermostatic
2 and 1
In the hot water heating pumps discharge piping.
On high side of the system and turns gas to liquid.

27. To assemble a 4 bolt flange...
dry expansion
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
Argon
8 5/8'(inch)

28. What causes water hammer?
Globe valve
Dog Everything
zinc
Insufficient condensate drainage

29. Which is the correct formula for the area of a circle?
Solder joints
.7854 x D squared
200 lbs
Basket

30. A system which the refrigerant is in the shell and cools the fluid in the tubes is...
Pressure Rating
Flooded
Groove
West of the building

31. Steam condensate lines should use...
Sch 80 Steel pipe
Fuel - Heat - Oxygen
Arrange a wire rope clamp so that the dead end has the U bolts
200 lbs

32. The last digit on a welding electrode refers to the __________ of the electrode.
34 feet
Coating
set point
Loosen the far bolts first

33. The only entity that has the responsibility and authority to appoint the competent person is...
Too fast of a travel rate
Pressure rating
the employer
Expansion loop.

34. OD for 3'(inch)

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35. A valve on the suction side of the pump should be...
Purge the line when brazing
Argon
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
Before the strainer and fully open.

36. Exits from a trench 150' long and 4' deep must be located within how many feet of a worker in the trench?
Mechanical return is used.
Pipe strain
25 feet
Prevailing wind speed and direction - environmental concerns - zoning requirements

37. The sum of atmospheric and gauge pressure is known as __________ pressure.
Absolute
Beam clamp
Large end to smaller end to center(bull)
Ball joint - Bellows Joint and Packed Joint

38. The density of 1 cubic inch of Mercury is...
Notify response team and allow them to rescue.
Height * .433 = psig
.491lbs
The temperature that the joints are made - the flux and temperatures of the system

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

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40. How far should a copper tube be inserted into a cup for a brazed joint?
bowline on a bight
Vaporization
.01745 - 3.1416 - and .7854
All the way to the shoulder

41. Where should the pressure enter a globe valve?
1:48 - because 1/4 of an inch is 1/48th of a foot
Depends on the desired action if the disc or plug becomes detatched from the stem. (Fail open or Fail closed)
Never
near the middle of the jaws

42. Momentarily closing the starting switch to check the rotation of the pump is known as __________ the pump.
Bumping
30 Degrees
Hazard prevention and control.
BCuP - Stands for Brazed Copper Phosphorus

43. When should a person designated as an attendant attempt to rescue a worker that is trapped?
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut
Schedule 10
Never
On high side of the system and turns gas to liquid.

44. What type of expansion joint does NOT utilize mechanical movement?
Discharge
Expansion loop.
Pipe strain
Hydrostatic

45. The specific weight of air and water is...
1
Red.. think M&M is RED
set point
Flash Tank

46. The weight of 1 cubic foot of water is...
25' from any worker
62.4lbs
15 Feet
8.33 pounds

47. The symbol for pi is equivalent to...
Eccentric reducers - flat on top
4 times
3.1416
The science of heat transfer using water.

48. What type of hanger uses a spring that splits the rod?
Sensor
Its cheaper!
Spring hanger
.0361

49. Calculate head pressure of a vertical pipe at specific elevations.
falls
Pressuretrol
On low side of the system and expands liquid to low pressure gas.
(Total Height - Elevation) * .433 = psig

50. To properly align a flange you must perform what is commonly called a ______ hole...
34 feet
Two Hole
orthographic
steam and condensate flowing in the same direction