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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 diamond on an instrumentation loop diagram encloses information concerning...
NEVER!
The same ID as the branch
Clean all surfaces
Set point

2. Which one of the following measures and takes action?
Green
Controller
Too fast of a travel rate
Body belts

3. When a loop is needed at any point between ends of a rope - the proper knot to tie is the...
bowline on a bight
Height * .433 = psig
Thermostatic - Thermodynamic and Mechanical
.625

4. One gallon of water weighs?
Immersion sensor
8.33 pounds
orthographic
.491lbs

5. In the cooling cycle - which component throttles the flow of refrigerant?
Expansion Device
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.
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

6. An increase in pressure will cause the boiling point of water to ________...
Not to scale - does not show locations of equipment. It shows pipe size and flow.
DWV
13/16'(inch)
Increase

7. What is the expansion and compression of water vapor in a pump?
Pneumatics
Cavitation
Before the strainer and fully open.
The flux is in the filler material

8. There are __________ gallons in a cubic foot.
7.0
handle will bend
7.48
All position

9. What are 3 fuel gases used for heating pipe or tubing?
Thermostatic - Thermodynamic and Mechanical
MAPP - acetylene - and propane
Green
Guide - Anchor - Guide

10. A guard rail system must withstand a minimum force of __________ pounds.
Loosen the far bolts first
200 lbs
Segmental
the type of coating and current

11. An up-feed steam heating system has the heating units...
On low side of the system and expands liquid to low pressure gas.
Above the main
.075lbs
Forced convection - because the FAN forces convection!

12. A rating of 150# refers to a flange's...
.0361
8.33 pounds
Water
Pressure rating

13. A system which the refrigerant is in the shell and cools the fluid in the tubes is...
Globe valve
tangent 1/2 angle x radius
Ball joint - Bellows Joint and Packed Joint
Flooded

14. A thermostatic steam trap that fails in the closed position would cause a heating unit to become...
Waterlogged
Erratic readings
Axis of pipe should be on a 45 degree
radius squared times PI

15. What is the function of the covering on the electrodes during the process of '(inch)Shielded Metal Arc Welding'(inch)?
bowline on a bight
6 5/8'(inch)
In the direction of flow
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.

16. When using a cable come-a-long - what safety device will indicate overloading?
handle will bend
Red.. think M&M is RED
7.48
(Total Height - Elevation) * .433 = psig

17. What is the minimum thickness for threading PVC pipe?
Two Hole
The stud bolt is stronger than a machine bolt of the same size and material.
Protection for loss of water in the boiler.
Sch 40

18. To fabricate a 60 degree elbow from a 90 you would...
Controller
Insufficient condensate drainage
The type of coating and current
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut

19. Which of the following is the decimal equivalent of 5/8'(inch)
Roller hangers
lower hook
.625
Hazard prevention and control.

20. When a flux joint is overheated it will not...
Multiply the length of the hypotenuse of the roll and the set by 1.414
Fuse
Up and Down
Increase the pressure when the temperature increases

21. What does GFCI stand for?
180
Insufficient condensate drainage
Ground Fault Circuit Interrupter
Insure progressively tighter fit

22. What is the formula to figure the area of a circle?
Allow moisture to escape
Multiply the length of the hypotenuse of the roll and the set by 1.414
steam and condensate flowing in the same direction
radius squared times PI

23. The last two digits on an E-6010 electrode specify...
the type of coating and current
Neutral
Mechanical/Thermostatic
Basket

24. Which of the following is a key element of a comprehensive safety and health program?
When a large volume of condensate is generated
Hazard prevention and control.
Thermostatic - Thermodynamic and Mechanical
Steam

25. When a liquid changes immediately to a vapor it is called...
The flux burns and the joint becomes ineffective
Flashing
Spring hanger
Before the strainer and fully open.

26. To sense the temperature remotely from the thermostat location you would use...
Remote bulb
The tensile strength of the rod in PSI times 1 -000
1:48 - because 1/4 of an inch is 1/48th of a foot
Raise the load

27. The specific gravity of a gas is relative to the specific weight of _______________ - which has a specific gravity of one.
Dry expansion type
Softener
Air
Never

28. What is typically a final control element?
true isometric
Ball joint - Bellows Joint and Packed Joint
Magnesium
Valve

29. Why is it necessary to use roller hangers?
To allow for thermal movement
The type of coating and current
Vaporization
250 degrees

30. There are __________ cubic inches in a gallon.
231
The flux is in the filler material
MAPP - acetylene - and propane
Quarter

31. What causes pressure drop?
8 5/8'(inch)
the employer
The temperature that the joints are made - the flux and temperatures of the system
Increase in friction

32. An oil separator is required on systems using...
Depends on the desired action if the disc or plug becomes detatched from the stem. (Fail open or Fail closed)
Hydrostatics
Ammonia
4 to 20 milliamps

33. A single line drawing of a piping system represents the...
8.33 pounds
Center of the pipe
soft tempered
Increase

34. What is the best gasket to use on a flanged joint on medium pressure steam?
Segmental
Spiral Wound
8.33lbs
None

35. When lifting objects with sharp edges you should use a...
Softener
the type of coating and current
The stud bolt is stronger than a machine bolt of the same size and material.
Sch 40

36. Which of the following methods of access to a scaffold is prohibited?
Center of the pipe
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut
Climbing the cross braces.
.135 cu ft

37. One gallon of water occupies how many cubic feet?
lower hook
The type of coating and current
.135 cu ft
Roller hangers

38. What type of valve should be used to bypass a control valve?
Globe valve
Condensate pump size
no valves permitted
Two Hole

39. Which one of the following alloys does not require flux when brazing copper to copper joints?
Sensor
The temperature that the joints are made - the flux and temperatures of the system
BCuP - Stands for Brazed Copper Phosphorus
Eccentric reducers - flat on top

40. When should you ream the end of a pipe?
Purge the line when brazing
After cutting
Thermostatic - Thermodynamic and Mechanical
.625

41. Which way should the bevel face on an orifice plate?
Roller hangers
Yellow.. think Dee Double U is yelloWWW
Down Stream
The stud bolt is stronger than a machine bolt of the same size and material.

42. 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?
MAPP - acetylene - and propane
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.
Protection for loss of water in the boiler.
maximum rated capacity

43. OD for 6'(inch)

44. The last two digits on an E-6010 electrode specify
Increase
Type K
The type of coating and current
Ball joint - Bellows Joint and Packed Joint

45. Which of the following is sometimes used as a shielding gas in the GTAW process?
hydrometer
The tubing has been cleaned for oxygen service
Argon
Roller hangers

46. What is the best valve for throttling?
Globe
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.
4 to 20 milliamps
In a pressure gauge

47. OD for 2'(inch)

48. Steam condensate lines should be installed on...
Roller hangers
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)
return fitting
Insert pipe into fitting and turn 1/4 turn and hold

49. When a cranes signaler's hand is pointed up with his finger moving in a circle it means to...
7.48
Raise the load
foot valve
Expansion loop.

50. What is the standard pressure range for a pneumatic signal?
36'(inch)
Center of the pipe
3 to 15 psi
The temperature that the joints are made - the flux and temperatures of the system