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. When a cranes signaler's hand is pointed up with his finger moving in a circle it means to...
discharge
Loosen the far bolts first
Mechanical return is used.
Raise the load

2. The type of drawing that views a building by looking directly at the front - top and side is referred to as a/an ___________ drawing.
The pump creates a differential in pressure that moves the water.
Pipe strain
orthographic
Roller hangers

3. What are the three types of steam traps?
Thermostatic - Thermodynamic and Mechanical
Spring hanger
8.33lbs
The flux is in the filler material

4. A concentric reducer could be used to connect to a horizontal pump _______________ line.
discharge
Latent
Set point
Pressure rating

5. What size hole should be cut into a main to saddle IN a smaller pipe?
Blue... think b-LLLLue
The same OD as the branch
MAPP - acetylene - and propane
Hydrostatic

6. The letters MSDS stand for...
Center of the pipe
200 lbs
Material Safety Data Sheet
Groove

7. What are 3 fuel gases used for heating pipe or tubing?
MAPP - acetylene - and propane
The pump creates a differential in pressure that moves the water.
6 5/8'(inch)
Sensor

8. What does the term '(inch)never saddle a dead horse'(inch) mean?
On low side of the system and expands liquid to low pressure gas.
To provide movement cause from a change in temperature
Arrange a wire rope clamp so that the dead end has the U bolts
Alloying

9. What does the evaporator do?
On low side of the system and expands liquid to low pressure gas.
Equalizing line
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)
Anchors

10. The symbol for pi is equivalent to...
3.1416
Fuse
zinc
radius squared times PI

11. A vertical line in an isometric drawing represents...
All the way to the shoulder
9
Up and Down
Not to scale - does not show locations of equipment. It shows pipe size and flow.

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

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13. What type of hanger uses a spring that splits the rod?
Spring hanger
Raise the load
compression
Increase in friction

14. Which one of the following measures and takes action?
8 5/8'(inch)
Insert pipe into fitting and turn 1/4 turn and hold
Controller
Remove any paint or rust.

15. To order a reducing tee you should specify the size by...
Down Stream
231
tangent 1/2 angle x radius
Large end to smaller end to center(bull)

16. A __________ displacement pump discharges a definite quantity of liquid for each cycle.
Equalizing line
6 5/8'(inch)
Crimson... think aCRimson
Positive

17. The pipe fitting that makes a 180 degree turn is called a/an?
Mechanical return is used.
The system temperature - thermal and dynamic movement of the pipe and vibration.
return fitting
no valves permitted

18. The ______ is used to protect the weld puddle from contamination in the SMAW process.
30 Degrees
Water
The science of heat transfer using water.
Flux

19. The device that controls the pressure in a low pressure steam boiler is called a...
Pressuretrol
Coating
Forced convection - because the FAN forces convection!
Blue... think b-LLLLue

20. The 6G welding position is...
cool and lubricate the die
With the weld at a 45 degree angle
14.7psia - always in PSI-A
falls

21. Which of the following is NOT a reason for using cutting oil when threading pipe?
To protect the threads from rust.
hydrometer
Purge the line when brazing
Above the main

22. What are the main differences between soldering and brazing?
14.7psia - always in PSI-A
9
Neutral
The temperature that the joints are made - the flux and temperatures of the system

23. What is the minimum thickness for threading PVC pipe?
an eccentric reducer flat on top
Sch 40
the core
The system temperature - thermal and dynamic movement of the pipe and vibration.

24. Formula for area of a circle?
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)
Two Hole
34 feet
pi * radius squared

25. When a loop is needed at any point between ends of a rope - the proper knot to tie is the...
Globe
Flash Tank
handle will bend
bowline on a bight

26. In the cooling cycle - which component throttles the flow of refrigerant?
Red.. think M&M is RED
Yellow.. think Dee Double U is yelloWWW
Its cheaper!
Expansion Device

27. A schematic drawing is...
Not to scale - does not show locations of equipment. It shows pipe size and flow.
Crimson... think aCRimson
The system temperature - thermal and dynamic movement of the pipe and vibration.
protect worker safety and health

28. Which of the following types of copper tube has the smallest wall thickness?
Blue... think b-LLLLue
DWV
.075lbs
set point

29. To sense the temperature remotely from the thermostat location you would use...
Protection for loss of water in the boiler.
Remote bulb
Prevailing wind speed and direction - environmental concerns - zoning requirements
Arrange a wire rope clamp so that the dead end has the U bolts

30. 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
200 lbs
radius squared times PI
Blue... think b-LLLLue

31. What is Hydronics?
After cutting
2 and 1
The science of heat transfer using water.
set point

32. What does GFCI stand for?
Ground Fault Circuit Interrupter
8.33 pounds
Condensate pump size
Arrange a wire rope clamp so that the dead end has the U bolts

33. When should you ream the end of a pipe?
Increase in friction
Increase
Discharge
After cutting

34. What should be done to prepare a flange for the gasket installation?
Pressure rating
set point
Remove any paint or rust.
1728

35. The anode rod used in a hot water heater to protect it from corrosion is made of...
Above the main
supporter of combustion
protect worker safety and health
Magnesium

36. Since _______________ is virtually incompressible - pressure has little effect on its volume.
Type K
2 3/8'(inch)
Steam
Water

37. The last digit on a welding electrode refers to the __________ of the electrode.
cool and lubricate the die
The flux burns and the joint becomes ineffective
Coating
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.

38. An increase in pressure will cause the boiling point of water to ________...
Mechanical return is used.
Increase
Globe
Green

39. To determine the face to center measurement of a long radius 90 degree elbow - multiply the pipe size by...
1.5
dry expansion
maximum rated capacity
lower hook

40. To assemble a 4 bolt flange...
an eccentric reducer flat on top
soft tempered
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
Type K

41. An exit from a trench should be no more than...

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42. What is the minimum safe clearance between cranes and energized power lines operating at 50kV or below?
6 5/8'(inch)
Raise the load
10 feet
36'(inch)

43. When a liquid changes immediately to a vapor it is called...
piping
Flashing
Tagged and removed from service.
Pressure Rating

44. One gallon of water occupies how many cubic feet?
Backflow preventer
7.48
.135 cu ft
180

45. The final step in the galvanizing of pipe is to dip the pipe into a bath of molten _________?
zinc
All the way to the shoulder
200 lbs
30 Degrees

46. When arranging weld coupons for testing position 6G...
All position
8.33 pounds
Axis of pipe should be on a 45 degree
25 feet

47. A rating of 150# refers to a flange's...
Steam
NEVER!
Pressure rating
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.

48. What is the specific gravity of water?
1
Solder joints
Never
15 PSI

49. To view the west elevation the viewer's perspective is from the...
200 lbs
Pressure rating
West of the building
1:48 - because 1/4 of an inch is 1/48th of a foot

50. Which rigging configuration has the greatest sling strength?
BCuP - Stands for Brazed Copper Phosphorus
Segmental
Erratic readings
Basket