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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. A system which the refrigerant is in the shell and cools the fluid in the tubes is...
4 times
steam and condensate flowing in the same direction
Its cheaper!
Flooded

2. A gallon of water weighs...
14.7psia - always in PSI-A
36'(inch)
8.33lbs
On low side of the system and expands liquid to low pressure gas.

3. The type of drawing that most closely resembles an object as the eye would see it is referred to as a/an __________ drawing.
Equalizing line
true isometric
Point at the base and sweep the base with the extinguisher
Controller

4. Capillary action is used in...
Green... think KKelly GREEN
A pry bar
Bumping
Solder joints

5. There are __________ gallons in a cubic foot.
10 feet
Blue... think b-LLLLue
Hydrostatic
7.48

6. When changing pipe sizes in the horizontal supply or return lines of a two-pipe hot water heating system use...
Continuously
The type of coating and current
Eccentric reducers - flat on top
14.7 psia

7. What does the crane signal with the index finger pointed forward in a swirling motion signal?
14'(inch)
Raise the load
The flux is in the filler material
8 5/8'(inch)

8. A simple example of a lever is...
840
A pry bar
ALWAYS
62.4lbs

9. What instrument is best for measuring vacuum?
Manometer
34 feet
Forced convection - because the FAN forces convection!
The science of heat transfer using water.

10. To determine the travel for a 45 degree rolling offset you would...
Multiply the length of the hypotenuse of the roll and the set by 1.414
Spiral
Up and Down
Erratic readings

11. Which of the following is a key element of a comprehensive safety and health program?
Spiral Wound
Hazard prevention and control.
30 Degrees
Increase

12. Formula for a cubic foot of an unknown substances weight?
Dry expansion type
25 feet
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
Spiral Wound

13. What does the term '(inch)never saddle a dead horse'(inch) mean?
The same OD as the branch
Sensor
Arrange a wire rope clamp so that the dead end has the U bolts
Pipe strain

14. What type of valve should be used to bypass a control valve?
Pipe penetration
Flux
.135 cu ft
Globe valve

15. The letters MSDS stand for...
15 Feet
All position
Magnesium
Material Safety Data Sheet

16. A fan coil uses ______ to distribute heating or cooling to the space.
Pressure rating
Forced convection - because the FAN forces convection!
Bumping
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.

17. What is the purpose of the expansion joint in a steam system?
Notify response team and allow them to rescue.
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
To provide movement cause from a change in temperature
Absolute

18. Calculate head pressure in a section of vertical pipe?
Pneumatics
Saturated
.01745 - 3.1416 - and .7854
Height * .433 = psig

19. The only entity that has the responsibility and authority to appoint the competent person is...
the employer
Center of the pipe
discharge
7.0

20. What size hole should be cut into a main to saddle IN a smaller pipe?
Roller hangers
The same OD as the branch
13/16'(inch)
30 Degrees

21. Which rigging configuration has the greatest sling strength?
.625
steam and condensate flowing in the same direction
The flux is in the filler material
Basket

22. In a Hydronic heating system - units at the top of the system not heating are likely to be...
Remote bulb
Its cheaper!
Air Bound
handle will bend

23. The maximum practical suction lift on positive displacement pumps is 22 feet and on centrifugal pumps it is __________ feet.
Discharge
36'(inch)
15 Feet
lower hook

24. A vent is not needed on a condensate receiver when...
Mechanical return is used.
Depends on the desired action if the disc or plug becomes detatched from the stem. (Fail open or Fail closed)
Continuously
Tagged and removed from service.

25. In a refrigeration system a condensable gas is...
Ammonia
The flow of a liquid into a small space
Guide - Anchor - Guide
handle will bend

26. What effect does the fill pressure (static) have on a closed loop plumbing system?
Pressure rating
supporter of combustion
When a large volume of condensate is generated
None

27. Why can flux be omitted in a brazed joint?
an eccentric reducer flat on top
MAPP - acetylene - and propane
The science of heat transfer using water.
The flux is in the filler material

28. A Hartford loop is used for...
62.4
Protection for loss of water in the boiler.
7.0
The temperature that the joints are made - the flux and temperatures of the system

29. How often should the atmosphere be tested in a confined space?
Never
Continuously
the type of coating and current
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

30. What is not a requirement to size the steam trap on a heating unit?
compression
The tensile strength of the rod in PSI times 1 -000
Condensate pump size
250 degrees

31. OD for 2'(inch)

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32. The weight of 1 cubic foot of water is...
9
4 to 20 milliamps
62.4lbs
maximum rated capacity

33. One pound of water pressure is equal to...
Air Bound
2.31ft
30 Degrees
Arrange a wire rope clamp so that the dead end has the U bolts

34. Calculate head pressure of a vertical pipe at specific elevations.
(Total Height - Elevation) * .433 = psig
Body belts
Absolute
The system temperature - thermal and dynamic movement of the pipe and vibration.

35. A schematic drawing is...
Not to scale - does not show locations of equipment. It shows pipe size and flow.
Softens it
Tagged and removed from service.
Clean all surfaces

36. A tag line should be used on a crane lift...
Backflow preventer
Neutral
ALWAYS
Anchors

37. What causes water hammer?
To chemically prepare the pieces for soldering
Insufficient condensate drainage
The pump creates a differential in pressure that moves the water.
1:48 - because 1/4 of an inch is 1/48th of a foot

38. To raise the boom of a crane you would...
Point thumb up
1 5/16'(inch)
tangent 1/2 angle x radius
Waterlogged

39. What is the best gasket to use on a flanged joint on medium pressure steam?
Beam clamp
Discharge
Ammonia
Spiral Wound

40. What does the stamp Oxy-Med stand for on copper tubing?
return fitting
The tubing has been cleaned for oxygen service
Fuel - Heat - Oxygen
14'(inch)

41. 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
Pipe penetration
Climbing the cross braces.
Hydrostatic

42. Horizontal steam supply piping should be reduced in size by using...
Notify response team and allow them to rescue.
Eccentric reducer (flat on top)
true isometric
Type K

43. Which of the following is NOT acceptable as part of a personal fall arrest system?
.135 cu ft
Schedule 10
1.25'(inch)
Body belts

44. Annealing copper...
Cavitation
Its cheaper!
Softens it
30 Degrees

45. Theoretically - a pump can raise water by suction approximately __________ feet vertically.
Eccentric reducer (flat on top)
34 feet
set point
Snubber

46. With a high pressure valve you should never _____ under pressure.
OD
Remove the packing
Erratic readings
1728

47. What is Hydronics?
212 degrees F
Absolute
The science of heat transfer using water.
Set point

48. Which of the following constants are used when working with circles and areas?
.01745 - 3.1416 - and .7854
62.4 pounds
Pressure rating
2.31ft

49. What is the purpose for a weep hole in a saddle pad?
Hydrostatics
1.25'(inch)
Pressuretrol
Allow moisture to escape

50. What type of sensor is directly in the process stream?
To provide movement cause from a change in temperature
Immersion sensor
Axis of pipe should be on a 45 degree
Green... think KKelly GREEN