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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. What type of expansion joint does NOT utilize mechanical movement?
Pipe penetration
5 9/16'(inch)
In the direction of flow
Expansion loop.

2. A __________ displacement pump discharges a definite quantity of liquid for each cycle.
BUT
Flat position only
Positive
Basket

3. The pressure exerted by a liquid at rest is...
On high side of the system and turns gas to liquid.
Erratic readings
Hydrostatic
Act as a safety device to shut off the motor if the operator's foot is removed from the switch.

4. What size hole should be cut into a main to saddle IN a smaller pipe?
The type of coating and current
The same OD as the branch
When a large volume of condensate is generated
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.

5. The color code for DWV copper is...
Yellow.. think Dee Double U is yelloWWW
Clean all surfaces
cool and lubricate the die
25 feet

6. Which of the following is an essential element necessary to produce an ordinary fire?
All the way to the shoulder
Red.. think M&M is RED
The stud bolt is stronger than a machine bolt of the same size and material.
Fuel - Heat - Oxygen

7. To determine the face to center measurement of a long radius 90 degree elbow - multiply the pipe size by...
1.5
maximum rated capacity
Hydraulics
the employer

8. The type of valve permitted downstream of a temperature and pressure relief valve on a water heater is...
no valves permitted
Condensate pump size
maximum rated capacity
Insufficient condensate drainage

9. What should be done first when preparing a copper joint?
To allow for thermal movement
With the weld at a 45 degree angle
the core
Clean all surfaces

10. How much does 1 cubic foot of air weigh?
Roller hangers
.075lbs
62.4lbs
On low side of the system and expands liquid to low pressure gas.

11. In one cubic foot there are _________ cubic inches.
A pry bar
Snubber
To reduce the pressure from the cylinders to safe and workable pressures
1728

12. What type of sensor is directly in the process stream?
Saturated
Remove any paint or rust.
Immersion sensor
Ground Fault Circuit Interrupter

13. What would be the result of an incorrectly installed orifice plate?
Protection for loss of water in the boiler.
25 feet
Ammonia
Erratic readings

14. What is the function of the covering on the electrodes during the process of '(inch)Shielded Metal Arc Welding'(inch)?
The same OD as the branch
Sch 40
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.
Water

15. The control point adjustment on a receiver is used to change the _______________.
Expansion Device
Fusion
Above the main
set point

16. What is the welding position 1 - on the electrode mean?
Flux
.075lbs
All position
Snubber

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

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18. For an extension ladder to be at the correct angle for safe use on a working surface 20ft high. The ladder must be located how many feet away from the base?
25' from any worker
1
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
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.

19. What type of copper is recommended for refrigeration?
Notify response team and allow them to rescue.
Type K
The tubing has been cleaned for oxygen service
Anchors

20. The proper way to extinguish a fire is to...
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.
Capillary action
Point at the base and sweep the base with the extinguisher
hydrometer

21. The color code for ACR copper is...
Crimson... think aCRimson
Air
Forced convection - because the FAN forces convection!
Not to scale - does not show locations of equipment. It shows pipe size and flow.

22. What has the largest effect on pump alignment?
Pipe strain
Before the strainer and fully open.
100% of the rated capacity
3.1416

23. Why is it necessary to use flux on a soldered joint?
BCuP - Stands for Brazed Copper Phosphorus
To chemically prepare the pieces for soldering
Pneumatics
7.48

24. What is the weakest part of a chain hoist?
no valves permitted
lower hook
A pry bar
Erratic readings

25. One pound of water pressure is equal to...
Too fast of a travel rate
supporter of combustion
231
2.31ft

26. What is the purpose of the expansion joint in a steam system?
To provide movement cause from a change in temperature
The flow of a liquid into a small space
When a large volume of condensate is generated
Fuse

27. What type of expansion joint utilizes mechanical movement?
In the hot water heating pumps discharge piping.
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
Hazard prevention and control.
Ball joint - Bellows Joint and Packed Joint

28. There are __________ cubic inches in a gallon.
231
DWV
Ground Fault Circuit Interrupter
Body belts

29. The final step in the galvanizing of pipe is to dip the pipe into a bath of molten _________?
To reduce the pressure from the cylinders to safe and workable pressures
8.33lbs
zinc
steam and condensate flowing in the same direction

30. Since _______________ is virtually incompressible - pressure has little effect on its volume.
Fusion
Controller
Water
Axis of pipe should be on a 45 degree

31. Which one of the following alloys does not require flux when brazing copper to copper joints?
Hazard prevention and control.
Green
Ammonia
BCuP - Stands for Brazed Copper Phosphorus

32. What causes water hammer?
Insufficient condensate drainage
Material Safety Data Sheet
Expansion loop.
.075lbs

33. An oil separator is required on systems using...
Equalizing line
Ammonia
Coating
Hazard prevention and control.

34. The sum of atmospheric and gauge pressure is known as __________ pressure.
Spring hanger
supporter of combustion
Pneumatics
Absolute

35. What does a condenser do?
On high side of the system and turns gas to liquid.
1:48 - because 1/4 of an inch is 1/48th of a foot
9
Condensate pump size

36. All of the following are process control elements EXCEPT...
Water
Its cheaper!
piping
Forced convection - because the FAN forces convection!

37. What type of copper tubing joint requires use of a ferrule?
Globe valve
compression
Height * .433 = psig
Axis of pipe should be on a 45 degree

38. What is the welding position 3 - on the electrode mean?
Protection for loss of water in the boiler.
Flat position only
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.
pi * radius squared

39. A rating of 150# refers to a flange's...
MAPP - acetylene - and propane
Pressure rating
1
Purge the line when brazing

40. Formula for area of a circle?
pi * radius squared
180
Ball joint - Bellows Joint and Packed Joint
.7854 x D squared

41. The type of drawing that most closely resembles an object as the eye would see it is referred to as a/an __________ drawing.
4 to 20 milliamps
Basket
Choked position
true isometric

42. The density of water is...
true isometric
Increase the pressure when the temperature increases
Multiply the length of the hypotenuse of the roll and the set by 1.414
62.4

43. What are 3 fuel gases used for heating pipe or tubing?
To protect the threads from rust.
MAPP - acetylene - and propane
Flux
The flux is in the filler material

44. The most that a crane should be loaded is...
100% of the rated capacity
West of the building
lower hook
the employer

45. An up-feed steam heating system has the heating units...
Clean all surfaces
Large end to smaller end to center(bull)
Above the main
Insure progressively tighter fit

46. Where is a bourdon tube found?
near the middle of the jaws
piping
In a pressure gauge
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.

47. A simple example of a lever is...
pi * radius squared
A pry bar
soft tempered
5 9/16'(inch)

48. The device that controls the pressure in a low pressure steam boiler is called a...
Sch 80 Steel pipe
Pressuretrol
To chemically prepare the pieces for soldering
Ammonia

49. What is Hydronics?
Schedule 10
The science of heat transfer using water.
Spiral
The stud bolt is stronger than a machine bolt of the same size and material.

50. OD for 3'(inch)

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