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 does the term '(inch)never saddle a dead horse'(inch) mean?
Segmental
Arrange a wire rope clamp so that the dead end has the U bolts
Red.. think M&M is RED
Its cheaper!


2. The treatment of liquids at rest is known as...
Saturated
Hydrostatics
Yellow.. think Dee Double U is yelloWWW
Remote bulb


3. Steam supply using parallel flow is...
Never
piping
steam and condensate flowing in the same direction
After cutting


4. Annealing copper...
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
Ammonia
200 lbs
Softens it


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

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6. If a horizontal pipe connecting to the suction side of a pump requires a reducer - it should be connected with...
Coating
pi * radius squared
an eccentric reducer flat on top
cool and lubricate the die


7. What do the first two digits mean in E7018 electrodes?
Backflow preventer
.625
Yellow.. think Dee Double U is yelloWWW
The tensile strength of the rod in PSI times 1 -000


8. .433 psig is equal to how high of a water column?
Guide - Anchor - Guide
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.
1 foot
To provide movement cause from a change in temperature


9. A thermostatic steam trap that fails in the closed position would cause a heating unit to become...
Axis of pipe should be on a 45 degree
Waterlogged
On low side of the system and expands liquid to low pressure gas.
Capillary action


10. A vertical line in an isometric drawing represents...
Magnesium
true isometric
Globe valve
Up and Down


11. To order a reducing tee you should specify the size by...
OD
100% of the rated capacity
Large end to smaller end to center(bull)
Never


12. What is the best gasket to use on a flanged joint on medium pressure steam?
bowline on a bight
The flux is in the filler material
Schedule 10
Spiral Wound


13. What is the standard for an electronic signal?
Sch 80 Steel pipe
Condensate pump size
4 to 20 milliamps
840


14. Both soldered and brazed joints are made by heating a properly prepared joint to the proper temperature and the flowing of a filler metal by means of...
180
Capillary action
Eccentric reducers - flat on top
Controller


15. To assemble a 4 bolt flange...
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
On high side of the system and turns gas to liquid.
true isometric
The science of heat transfer using water.


16. When changing pipe sizes in the horizontal supply or return lines of a two-pipe hot water heating system use...
Eccentric reducers - flat on top
Center of the pipe
Blue... think b-LLLLue
Too fast of a travel rate


17. Why is it necessary to use flux on a soldered joint?
To chemically prepare the pieces for soldering
25' from any worker
.491lbs
maximum rated capacity


18. The last digit on a welding electrode refers to the __________ of the electrode.
Coating
Softens it
Condensate pump size
Remove any paint or rust.


19. Use of air as a power source is known as...
1/2 BTU
Remote bulb
Pneumatics
1:48 - because 1/4 of an inch is 1/48th of a foot


20. OD for 3'(inch)

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21. A direct acting thermostat is used to...
Vaporization
cool and lubricate the die
Increase the pressure when the temperature increases
Increase


22. When arranging weld coupons for testing position 6G...
Pneumatics
Axis of pipe should be on a 45 degree
Depends on the desired action if the disc or plug becomes detatched from the stem. (Fail open or Fail closed)
Large end to smaller end to center(bull)


23. On a centrifugal pump what is rotated by the motor?
Sch 40
Spring hanger
A pry bar
The impeller


24. In a piping installation allowing for expansion in two directions - how should the anchor(s) and guide(s) be positioned relative to each other?
Anchors
Center of the pipe
Guide - Anchor - Guide
Raise the load


25. The color code for type '(inch)K'(inch) copper is?
200 lbs
180
Green
Fusion


26. Which of the following types of clamps are used to dampen a pipe's movement?
Axis of pipe should be on a 45 degree
.707
steam and condensate flowing in the same direction
Snubber


27. What is the expansion and compression of water vapor in a pump?
.707 x Travel
Up and Down
Cavitation
7.0


28. The centerline of piping in a horizontal plane on an isometric drawing is most generally drawn at __________ degrees from the horizontal.
30 Degrees
Spring hanger
.01745 - 3.1416 - and .7854
Flux


29. The leading cause of on-the-job deaths in the construction industry is _______________.
falls
Bight - running end and standing part
Manometer
The temperature that the joints are made - the flux and temperatures of the system


30. When using a cable come-a-long - what safety device will indicate overloading?
Condensate pump size
4 1/2'(inch)
Alloying
handle will bend


31. The maximum practical suction lift on positive displacement pumps is 22 feet and on centrifugal pumps it is __________ feet.
13/16'(inch)
15 Feet
Clove hitch with a half hitch
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


32. What does GFCI stand for?
Ground Fault Circuit Interrupter
4 times
Backflow preventer
Pneumatics


33. One atmosphere is equal to...
near the middle of the jaws
14.7psia - always in PSI-A
Anchors
4 to 20 milliamps


34. Calculate head pressure in a section of vertical pipe?
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
.433psi
Hydraulics
Height * .433 = psig


35. Horizontal steam supply piping should be reduced in size by using...
Multiply the length of the hypotenuse of the roll and the set by 1.414
Eccentric reducer (flat on top)
pi * radius squared
Hydrostatic


36. The symbol for pi is equivalent to...
orthographic
1:48 - because 1/4 of an inch is 1/48th of a foot
3.1416
Capillary action


37. An exit from a trench should be no more than...

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

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39. Which of the following is NOT a reason to use stud bolts instead of machine bolts for bolting flanged piping joints?
OD
The stud bolt is stronger than a machine bolt of the same size and material.
maximum rated capacity
falls


40. Which of the following is NOT a reason for using cutting oil when threading pipe?
Insufficient condensate drainage
In the hot water heating pumps discharge piping.
To protect the threads from rust.
Clean all surfaces


41. What is the formula to calculate thermal expansion?

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42. The change in state from a liquid to gas is known as...
Vaporization
an eccentric reducer flat on top
34 feet
The flux is in the filler material


43. What type of expansion joint does NOT utilize mechanical movement?
Absolute
36'(inch)
Expansion loop.
Ammonia


44. Factors in considering the site selection for a new cooling tower.
Prevailing wind speed and direction - environmental concerns - zoning requirements
Spring hanger
Large end to smaller end to center(bull)
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.


45. Oil is used on a pipe machine to...
250 degrees
Large end to smaller end to center(bull)
cool and lubricate the die
piping


46. The last two digits on an E-6010 electrode specify
The type of coating and current
Before the strainer and fully open.
Increase
Two Hole


47. The pipe size of a pipe changes from the ID to the OD on what pipe size?

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48. One pound of water pressure is equal to...
840
The Evaporator
2.31ft
Mechanical/Thermostatic


49. What type of copper is recommended for refrigeration?
Type K
Fusion
In the direction of flow
discharge


50. A triple-duty valve is installed...
62.4lbs
Expansion loop.
In the hot water heating pumps discharge piping.
Eccentric reducers - flat on top