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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. Where should the pressure enter a globe valve?
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
Latent
orthographic
Depends on the desired action if the disc or plug becomes detatched from the stem. (Fail open or Fail closed)

2. The density of 1 cubic inch of Mercury is...
.491lbs
Hydrostatics
Globe valve
OD

3. A float and thermostatic trap is a...
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
Globe
MAPP - acetylene - and propane
Mechanical/Thermostatic

4. What type of valve should be used to bypass a control valve?
galvanized
Globe valve
Spiral
Softens it

5. A sling is weakest in which position?
8.33lbs
Eccentric reducers - flat on top
Choked position
Raise the load

6. When ordering ACR copper specify the size by...
Flat and horizontal positions
The same OD as the branch
The type of coating and current
OD

7. When a soldered joint is overheated...
DWV
Snubber
The flux burns and the joint becomes ineffective
Height * .433 = psig

8. What do the first two digits mean in E7018 electrodes?
1.5
Conduction - convection and radiant.
Set point
The tensile strength of the rod in PSI times 1 -000

9. The color code for DWV copper is...
hydrometer
Point at the base and sweep the base with the extinguisher
NEVER!
Yellow.. think Dee Double U is yelloWWW

10. A device that mechanically attaches to the side of a flange on a beam is called a...
Raise the load
Beam clamp
Conduction - convection and radiant.
Loosen the far bolts first

11. What type of sensor is directly in the process stream?
.7854 x D squared
180
Immersion sensor
NEVER!

12. A concentric reducer could be used to connect to a horizontal pump _______________ line.
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
Center of the pipe
discharge
Tagged and removed from service.

13. What type of expansion joint utilizes mechanical movement?
Ball joint - Bellows Joint and Packed Joint
set point
Strainer
Sch 40

14. The specific gravity of a gas is relative to the specific weight of _______________ - which has a specific gravity of one.
Increase
Air
Allow moisture to escape
1 foot

15. The leading cause of on-the-job deaths in the construction industry is _______________.
34 feet
Pneumatics
falls
Beam clamp

16. The face to center measurement of any welded angle fitting equals...
Quarter
tangent 1/2 angle x radius
Erratic readings
Down Stream

17. A mixing valve has ___ inlets and ___ outlets.
2 and 1
To reduce the pressure from the cylinders to safe and workable pressures
Axis of pipe should be on a 45 degree
14.7psia - always in PSI-A

18. What is the formula to figure take off on a 45 degree elbow?

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19. Which one of the following alloys does not require flux when brazing copper to copper joints?
.707
BCuP - Stands for Brazed Copper Phosphorus
Alloying
Flashing

20. The pipe fitting that makes a 180 degree turn is called a/an?
75 degrees - also 4 to 1
Tagged and removed from service.
return fitting
soft tempered

21. To determine the travel for a 45 degree rolling offset you would...
Pressure Rating
an eccentric reducer flat on top
Multiply the length of the hypotenuse of the roll and the set by 1.414
Its cheaper!

22. What type of expansion joint does NOT utilize mechanical movement?
Expansion loop.
In a pressure gauge
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
supporter of combustion

23. To determine the set on a 45 degree offset you would multiply the travel by...
take-off must be subtracted from the end-to-center measurement.
.707
To reduce the pressure from the cylinders to safe and workable pressures
13/16'(inch)

24. Which is the correct formula for the area of a circle?
Height * .433 = psig
Primer
.7854 x D squared
Increase in friction

25. When a loop is needed at any point between ends of a rope - the proper knot to tie is the...
Conduction - convection and radiant.
Cavitation
bowline on a bight
8 5/8'(inch)

26. How much does 1 cubic foot of air weigh?
A pry bar
Pressuretrol
The impeller
.075lbs

27. Which of the following is NOT acceptable as part of a personal fall arrest system?
Body belts
Too fast of a travel rate
Red.. think M&M is RED
The flow of a liquid into a small space

28. The last digit on a welding electrode refers to the __________ of the electrode.
14.7 psia
galvanized
Coating
lower hook

29. What does a condenser do?
Point at the base and sweep the base with the extinguisher
The science of heat transfer using water.
25' from any worker
On high side of the system and turns gas to liquid.

30. When a liquid changes immediately to a vapor it is called...
Flashing
set point
Remove the packing
Continuously

31. What does the stamp Oxy-Med stand for on copper tubing?
The tubing has been cleaned for oxygen service
The flow of a liquid into a small space
In a pressure gauge
Clean all surfaces

32. How far should a copper tube be inserted into a cup for a brazed joint?
soft tempered
Flat and horizontal positions
All the way to the shoulder
Eccentric reducer (flat on top)

33. When changing pipe sizes in the horizontal supply or return lines of a two-pipe hot water heating system use...
The same ID as the branch
Eccentric reducers - flat on top
7.48
75 degrees - also 4 to 1

34. How often should the atmosphere be tested in a confined space?
Cavitation
Large end to smaller end to center(bull)
14'(inch)
Continuously

35. The specific gravity of a liquid can only be measured using the following instrument...
Guide - Anchor - Guide
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
hydrometer
the employer

36. What size hole should be cut into a main to saddle ON a smaller pipe?
.7854 x D squared
The same ID as the branch
840
None

37. What type of copper tubing joint requires use of a ferrule?
250 degrees
compression
Down Stream
Point at the base and sweep the base with the extinguisher

38. Steam condensate lines should use...
Hydrostatic
Sch 80 Steel pipe
30 Degrees
8.33lbs

39. Oil is used on a pipe machine to...
cool and lubricate the die
34 feet
Insufficient condensate drainage
Remove the packing

40. When a flux joint is overheated it will not...
Fuse
the type of coating and current
8.33lbs
Ammonia

41. The best method to ensure that a plastic joint is made properly - you should...
return fitting
1728
Insert pipe into fitting and turn 1/4 turn and hold
Crimson... think aCRimson

42. An ejector pump is typically used to pump __________.
To protect the threads from rust.
Eccentric reducers - flat on top
sewage
Remove any paint or rust.

43. Which of the following is NOT a reason to use stud bolts instead of machine bolts for bolting flanged piping joints?
The same ID as the branch
.707
180
The stud bolt is stronger than a machine bolt of the same size and material.

44. What does GFCI stand for?
1
hydrometer
Ground Fault Circuit Interrupter
Hazard prevention and control.

45. What has the largest effect on pump alignment?
Insert pipe into fitting and turn 1/4 turn and hold
14.7psia - always in PSI-A
13/16'(inch)
Pipe strain

46. OD for 8'(inch)

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47. Which of the elements of a wire rope aid in absorbing '(inch)Shock Loads'(inch)?
.625
Flooded
the core
Material Safety Data Sheet

48. To figure the end-to-end measurement of a piece of pipe when the end-to-end center measurement is known the...
take-off must be subtracted from the end-to-center measurement.
Act as a safety device to shut off the motor if the operator's foot is removed from the switch.
tangent 1/2 angle x radius
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.

49. The amount of heat it takes to raise one pound of water one degree Fahrenheit is known as a...
Roller hangers
BCuP - Stands for Brazed Copper Phosphorus
BUT
8 5/8'(inch)

50. What is the welding position 3 - on the electrode mean?
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
When a large volume of condensate is generated
62.4lbs
Flat position only