Test your basic knowledge |

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 device that mechanically attaches to the side of a flange on a beam is called a...
Its cheaper!
maximum rated capacity
Beam clamp
Spring hanger

2. What is the formula to figure the area of a circle?
Waterlogged
true isometric
radius squared times PI
A pry bar

3. When should you ream the end of a pipe?
Hydraulics
an eccentric reducer flat on top
The flux is in the filler material
After cutting

4. The main cause of undercutting is...
Too fast of a travel rate
To chemically prepare the pieces for soldering
Air
4 times

5. What is the welding position 3 - on the electrode mean?
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
Flat position only
Quarter
orthographic

6. If a pump is operating under static suction lift conditions - a __________ may be installed in the suction line to avoid losing the pump's prime each time the pump shuts off.
Point thumb up
foot valve
dry expansion
Red.. think M&M is RED

7. OD for 8'(inch)

8. The centerline of piping in a horizontal plane on an isometric drawing is most generally drawn at __________ degrees from the horizontal.
30 Degrees
blow the valves for a moment
Valve
steel to copper joints

9. OD for 1'(inch)

10. The type of valve permitted downstream of a temperature and pressure relief valve on a water heater is...
Insufficient condensate drainage
NEVER!
25' from any worker
no valves permitted

11. When brazing for medical gas or refrigeration always...
Purge the line when brazing
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
maximum rated capacity
steel to copper joints

12. What are the three types of steam traps?
Condensate pump size
Controller
Conduction - convection and radiant.
Thermostatic - Thermodynamic and Mechanical

13. All of the following are process control elements EXCEPT...
Insure progressively tighter fit
Vaporization
7.0
piping

14. On a centrifugal pump what is rotated by the motor?
14'(inch)
near the middle of the jaws
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
The impeller

15. A cooling tower must have a ________ or be open-site.
.01745 - 3.1416 - and .7854
The temperature that the joints are made - the flux and temperatures of the system
Backflow preventer
4 1/2'(inch)

16. A tag line should be used on a crane lift...
ALWAYS
Mechanical/Thermostatic
A pry bar
Argon

17. The control point adjustment on a receiver is used to change the _______________.
Softens it
set point
The pump creates a differential in pressure that moves the water.
Protection for loss of water in the boiler.

18. A dielectric fitting should be used on...
Expansion Device
A pry bar
Hydraulics
steel to copper joints

19. To raise the boom of a crane you would...
Point thumb up
9
pi * radius squared
Choked position

20. A float and thermostatic trap is a...
Flat and horizontal positions
All position
Mechanical/Thermostatic
Flooded

21. The final step in the galvanizing of pipe is to dip the pipe into a bath of molten _________?
zinc
To allow for thermal movement
Red.. think M&M is RED
Increase the pressure when the temperature increases

22. Where should the pressure enter a globe valve?
Eccentric reducers - flat on top
Cavitation
Increase
Depends on the desired action if the disc or plug becomes detatched from the stem. (Fail open or Fail closed)

23. When leaning a ladder against an object - the ladder should be at an approximate angle of __________ degrees.
75 degrees - also 4 to 1
Red.. think M&M is RED
13/16'(inch)
3.1416

24. 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...
In the direction of flow
Capillary action
The science of heat transfer using water.
Condensate pump size

25. What is not a requirement to size the steam trap on a heating unit?
Dog Everything
Condensate pump size
Neutral
The science of heat transfer using water.

26. The specific gravity of a gas is relative to the specific weight of _______________ - which has a specific gravity of one.
foot valve
Sch 40
Air
Backflow preventer

27. In the cooling cycle - which component throttles the flow of refrigerant?
Ball joint - Bellows Joint and Packed Joint
Expansion Device
Axis of pipe should be on a 45 degree
NEVER!

28. The anode rod used in a hot water heater to protect it from corrosion is made of...
Increase in friction
Flat and horizontal positions
Magnesium
.707

29. When gripping a pipe with a pipe wrench - the wrench should be adjusted so the pipe is...
near the middle of the jaws
All position
Cavitation
25' from any worker

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

31. A gallon of water weighs...
8.33lbs
falls
discharge
Allow moisture to escape

32. The proper way to extinguish a fire is to...
Point at the base and sweep the base with the extinguisher
1:48 - because 1/4 of an inch is 1/48th of a foot
250 degrees
Latent

33. The most that a crane should be loaded is...
Clean all surfaces
100% of the rated capacity
OD
3 to 15 psi

34. Which of the following is NOT a reason for using cutting oil when threading pipe?
Pressure rating
Snubber
To protect the threads from rust.
Too fast of a travel rate

35. What is the maximum pressure for an acetylene hose?
Yellow.. think Dee Double U is yelloWWW
The type of coating and current
15 PSI
falls

36. The letters MSDS stand for...
Crimson... think aCRimson
Protection for loss of water in the boiler.
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
Material Safety Data Sheet

37. One foot of water exerts...
.433psi
3 1/2'(inch)
.707 x Travel
Bumping

38. What do the first two digits mean in E7018 electrodes?
36'(inch)
falls
Valve
The tensile strength of the rod in PSI times 1 -000

39. The specific weight of air and water is...
Absolute
Manometer
1
Sensor

40. Which of the following is sometimes used as a shielding gas in the GTAW process?
The science of heat transfer using water.
Flux
Argon
piping

41. The amount of heat necessary bring about a change of state from solid to liquid or liquid to gas is known as _______________ heat.
the employer
Choked position
Latent
Basket

42. Which of the following is NOT acceptable as part of a personal fall arrest system?
Blue... think b-LLLLue
Body belts
falls
galvanized

43. .433 psig is equal to how high of a water column?
Argon
Pipe penetration
Discharge
1 foot

44. What is the purpose for a weep hole in a saddle pad?
Tagged and removed from service.
Allow moisture to escape
Multiply the length of the hypotenuse of the roll and the set by 1.414
10 feet

45. What occurs in a flash tank?
In a pressure gauge
2.31ft
blow the valves for a moment
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.

46. To fabricate a 60 degree elbow from a 90 you would...
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut
1.5
The same ID as the branch
62.4

47. One atmosphere is equal to...
Solder joints
Beam clamp
14.7psia - always in PSI-A
The stud bolt is stronger than a machine bolt of the same size and material.

48. OD for 6'(inch)

49. When a liquid changes immediately to a vapor it is called...
15 Feet
Flashing
Set point
Axis of pipe should be on a 45 degree

50. OSHA was enacted to...
Ammonia
Roller hangers
Material Safety Data Sheet
protect worker safety and health