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 thermostatic steam trap that fails in the closed position would cause a heating unit to become...
14.7 psia
Ammonia
Waterlogged
A pry bar

2. The face to center measurement of any welded angle fitting equals...
The tensile strength of the rod in PSI times 1 -000
The Evaporator
250 degrees
tangent 1/2 angle x radius

3. The pressure exerted by a liquid at rest is...
tangent 1/2 angle x radius
Hydrostatic
Blue... think b-LLLLue
All the way to the shoulder

4. The treatment of liquids in motion is known as...
steam and condensate flowing in the same direction
.491lbs
62.4lbs
Hydraulics

5. The last digit on a welding electrode refers to the __________ of the electrode.
Coating
Point thumb up
30 Degrees
36'(inch)

6. What are the main differences between soldering and brazing?
supporter of combustion
The temperature that the joints are made - the flux and temperatures of the system
3 1/2'(inch)
The tubing has been cleaned for oxygen service

7. What is the function of the covering on the electrodes during the process of '(inch)Shielded Metal Arc Welding'(inch)?
62.4 pounds
Sensor
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.
Absolute

8. One gallon of water occupies how many cubic feet?
The flux is in the filler material
.135 cu ft
Manometer
None

9. What effect does the fill pressure (static) have on a closed loop plumbing system?
Flat and horizontal positions
None
Flooded
Sensor

10. What type of Copper tubing is not identified by color on the tubing itself?
Up and Down
soft tempered
Absolute
Climbing the cross braces.

11. A dielectric fitting should be used on...
4 times
steel to copper joints
near the middle of the jaws
Two Hole

12. The pipe that connects the steam header to the boiler return connection is the...
ALWAYS
West of the building
Equalizing line
near the middle of the jaws

13. The best method to ensure that a plastic joint is made properly - you should...
handle will bend
Insert pipe into fitting and turn 1/4 turn and hold
Purge the line when brazing
Axis of pipe should be on a 45 degree

14. With a high pressure valve you should never _____ under pressure.
Clean all surfaces
Remove the packing
Arrange a wire rope clamp so that the dead end has the U bolts
Insufficient condensate drainage

15. Which of the following is the decimal equivalent of 5/8'(inch)
2 and 1
Act as a safety device to shut off the motor if the operator's foot is removed from the switch.
Choked position
.625

16. The last two digits on an E-6010 electrode specify
15 Feet
Material Safety Data Sheet
The type of coating and current
212 degrees F

17. The type of drawing that views a building by looking directly at the front - top and side is referred to as a/an ___________ drawing.
Condensate pump size
25 feet
Fuel - Heat - Oxygen
orthographic

18. Which of the elements of a wire rope aid in absorbing '(inch)Shock Loads'(inch)?
the core
discharge
2 3/8'(inch)
Groove

19. What is the specific gravity of water?
13/16'(inch)
.707 x Travel
1
Notify response team and allow them to rescue.

20. What type of sensor is directly in the process stream?
Remove any paint or rust.
Pipe strain
Immersion sensor
Steam

21. A valve on the suction side of the pump should be...
4 1/2'(inch)
blow the valves for a moment
The flux burns and the joint becomes ineffective
Before the strainer and fully open.

22. OD for 3'(inch)

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23. The control point adjustment on a receiver is used to change the _______________.
Air
set point
Tagged and removed from service.
Neutral

24. The pipe fitting that makes a 180 degree turn is called a/an?
180
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
14.7psia - always in PSI-A
return fitting

25. Factors in considering the site selection for a new cooling tower.
Beam clamp
8.33lbs
Prevailing wind speed and direction - environmental concerns - zoning requirements
14.7 psia

26. If the travel of a 45 degree offset is known - what formula can be used to find the advance?
1/2 BTU
MAPP - acetylene - and propane
the core
.707 x Travel

27. When ordering ACR copper specify the size by...
The type of coating and current
sewage
OD
Flash Tank

28. The density of water is...
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)
Beam clamp
62.4
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.

29. Exits from a trench 150' long and 4' deep must be located within how many feet of a worker in the trench?
Center of the pipe
25 feet
1728
62.4lbs

30. The leading cause of on-the-job deaths in the construction industry is _______________.
(Total Height - Elevation) * .433 = psig
supporter of combustion
falls
piping

31. The color code for ACR copper is...
62.4lbs
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
62.4 pounds
Crimson... think aCRimson

32. 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.
foot valve
Anchors
Height * .433 = psig
To protect the threads from rust.

33. To determine the set on a 45 degree offset you would multiply the travel by...
.707
Flashing
1 5/16'(inch)
Expansion = Constant per 100ft multiplied by (Final Temp- Starting Temp) Example: 380' steel pipe (.0305 constant) is heated from 62 degrees to 171 degrees - how much did the pipe expand? Formula: .0305 * 3.8 (171-62) = 3 5/16'(inch)

34. A rating of 300# refers to a flange's...
Pneumatics
Pressure Rating
Raise the load
pi * radius squared

35. What is not a requirement to size the steam trap on a heating unit?
Segmental
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
Pipe strain
Condensate pump size

36. A sling is weakest in which position?
On high side of the system and turns gas to liquid.
Choked position
To protect the threads from rust.
Before the strainer and fully open.

37. There are __________ gallons in a cubic foot.
Climbing the cross braces.
On high side of the system and turns gas to liquid.
7.48
Manometer

38. Theoretically - a pump can raise water by suction approximately __________ feet vertically.
cool and lubricate the die
Quarter
34 feet
1:48 - because 1/4 of an inch is 1/48th of a foot

39. Which of the following types of copper tube has the smallest wall thickness?
Positive
1
DWV
15 Feet

40. An ejector pump is typically used to pump __________.
Remove any paint or rust.
Up and Down
Increase
sewage

41. What does the crane signal with the index finger pointed forward in a swirling motion signal?
Raise the load
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.
discharge
Hazard prevention and control.

42. What is Hydronics?
.135 cu ft
To protect the threads from rust.
Ammonia
The science of heat transfer using water.

43. Ladders with visible defects - such as broken rungs - cracked side rails - or broken steps must be...
Softener
To chemically prepare the pieces for soldering
.433psi
Tagged and removed from service.

44. How do you determine gear ratios?

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45. A vent is not needed on a condensate receiver when...
On low side of the system and expands liquid to low pressure gas.
Mechanical return is used.
near the middle of the jaws
pi * radius squared

46. When arranging weld coupons for testing position 6G...
231
14.7 psia
Alloying
Axis of pipe should be on a 45 degree

47. In the cooling cycle - which component throttles the flow of refrigerant?
Hydraulics
dry expansion
MAPP - acetylene - and propane
Expansion Device

48. The combining of more than one metal is...
Alloying
Air Bound
Multiply the length of the hypotenuse of the roll and the set by 1.414
Ammonia

49. What does the term '(inch)never saddle a dead horse'(inch) mean?
Arrange a wire rope clamp so that the dead end has the U bolts
Condensate pump size
Increase
Mechanical return is used.

50. Horizontal steam supply piping should be reduced in size by using...
Eccentric reducer (flat on top)
hydrometer
4 to 20 milliamps
Large end to smaller end to center(bull)