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. To raise the boom of a crane you would...
Anchors
Hydraulics
Point thumb up
Clove hitch with a half hitch


2. Why can flux be omitted in a brazed joint?
The flux is in the filler material
dry expansion
212 degrees F
Remove the packing


3. What effect does the fill pressure (static) have on a closed loop plumbing system?
8.33 pounds
None
Snubber
36'(inch)


4. A rating of 300# refers to a flange's...
Expansion loop.
100% of the rated capacity
Pressure Rating
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


5. Calculate head pressure of a vertical pipe at specific elevations.
Snubber
Point at the base and sweep the base with the extinguisher
Anchors
(Total Height - Elevation) * .433 = psig


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

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7. The specific weight of air and water is...
Positive
Increase
MAPP - acetylene - and propane
1


8. Where is a bourdon tube found?
In a pressure gauge
Latent
Alloying
3.1416


9. To view the west elevation the viewer's perspective is from the...
West of the building
Coating
Type K
orthographic


10. How high must you extend a ladder above the roof or deck?

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11. On a centrifugal pump what is rotated by the motor?
Roller hangers
lower hook
The impeller
Hydrostatics


12. What type of flame should be used to cut carbon steel?
The flux burns and the joint becomes ineffective
Ammonia
Neutral
The temperature that the joints are made - the flux and temperatures of the system


13. What is installed after the isolation valve and before the trap union on a standard trap assembly?
Strainer
3.1416
4 1/2'(inch)
Type K


14. The last two digits on an E-6010 electrode specify
Ammonia
Red.. think M&M is RED
Alloying
The type of coating and current


15. What type of expansion joint does NOT utilize mechanical movement?
Expansion loop.
dry expansion
The flow of a liquid into a small space
Air


16. When leaning a ladder against an object - the ladder should be at an approximate angle of __________ degrees.
.433psi
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)
soft tempered
75 degrees - also 4 to 1


17. 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.
return fitting
foot valve
Continuously
231


18. What do the first two digits mean in E7018 electrodes?
Before the strainer and fully open.
MAPP - acetylene - and propane
The tensile strength of the rod in PSI times 1 -000
Bumping


19. A neutral reading on the PH scale is...
Mechanical/Thermostatic
Globe
7.0
Magnesium


20. What is the function of the covering on the electrodes during the process of '(inch)Shielded Metal Arc Welding'(inch)?
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.
62.4lbs
Body belts
near the middle of the jaws


21. If a horizontal pipe connecting to the suction side of a pump requires a reducer - it should be connected with...
Protection for loss of water in the boiler.
231
an eccentric reducer flat on top
Positive


22. An oil separator is required on systems using...
Climbing the cross braces.
Basket
Ammonia
Waterlogged


23. OD for 8'(inch)

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24. One gallon of water weighs?
All position
Groove
The same ID as the branch
8.33 pounds


25. What should the outside attendant do to rescue a worker who shows physiological effects of exposure in a confined space?
ALWAYS
Notify response team and allow them to rescue.
Height * .433 = psig
The impeller


26. What size hole should be cut into a main to saddle IN a smaller pipe?
The same OD as the branch
Schedule 10
OD
30 Degrees


27. What causes water to move in a Hydronic system?
Valve
The pump creates a differential in pressure that moves the water.
Hydraulics
231


28. What would be the result of an incorrectly installed orifice plate?
Erratic readings
discharge
MAPP - acetylene - and propane
.01745 - 3.1416 - and .7854


29. What is the formula to figure the area of a circle?
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
9
radius squared times PI
Alloying


30. Theoretically - a pump can raise water by suction approximately __________ feet vertically.
Fuel - Heat - Oxygen
Controller
2 and 1
34 feet


31. Which of the following is NOT acceptable as part of a personal fall arrest system?
Flat and horizontal positions
MAPP - acetylene - and propane
14'(inch)
Body belts


32. One pound of water pressure is equal to...
2.31ft
Anchors
3.1416
Above the main


33. When a liquid changes immediately to a vapor it is called...
steam and condensate flowing in the same direction
The pump creates a differential in pressure that moves the water.
The stud bolt is stronger than a machine bolt of the same size and material.
Flashing


34. A Hartford loop is used for...
On high side of the system and turns gas to liquid.
Protection for loss of water in the boiler.
The impeller
3.1416


35. When arranging weld coupons for testing position 6G...
blow the valves for a moment
Axis of pipe should be on a 45 degree
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
To allow for thermal movement


36. Condensate lines should be pitched...
The temperature that the joints are made - the flux and temperatures of the system
Clean all surfaces
The tubing has been cleaned for oxygen service
In the direction of flow


37. Which rigging configuration has the greatest sling strength?
Erratic readings
Two Hole
Expansion Device
Basket


38. What is on the low side of the vapor compression cycle?
Spiral Wound
To protect the threads from rust.
14.7psia - always in PSI-A
The Evaporator


39. What type of copper is recommended for refrigeration?
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)
OD
Type K
5 9/16'(inch)


40. What does a condenser do?
All position
Solder joints
Manometer
On high side of the system and turns gas to liquid.


41. The face to center measurement of any welded angle fitting equals...
ALWAYS
tangent 1/2 angle x radius
2 3/8'(inch)
Backflow preventer


42. The only entity that has the responsibility and authority to appoint the competent person is...
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
Multiply the length of the hypotenuse of the roll and the set by 1.414
Choked position
the employer


43. OD for 3'(inch)

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44. A dielectric fitting should be used on...
Flat and horizontal positions
36'(inch)
steel to copper joints
To reduce the pressure from the cylinders to safe and workable pressures


45. The density of 1 cubic inch of Mercury is...
.491lbs
In the direction of flow
bowline on a bight
blow the valves for a moment


46. The amount of heat it takes to raise one pound of water one degree Fahrenheit is known as a...
Flat and horizontal positions
Magnesium
Globe
BUT


47. Oil is used on a pipe machine to...
cool and lubricate the die
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)
Blue... think b-LLLLue
8 5/8'(inch)


48. Annealing copper...
Softens it
.707 x Travel
discharge
25' from any worker


49. Where should the high pressure condensate be piped to before entering the receiver?
The type of coating and current
Flash Tank
Thermostatic - Thermodynamic and Mechanical
Too fast of a travel rate


50. OD for 4'(inch)

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