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 is the best valve for throttling?
BCuP - Stands for Brazed Copper Phosphorus
Allow moisture to escape
The science of heat transfer using water.
Globe


2. The color code for type '(inch)K'(inch) copper is?
NEVER!
Valve
Green
2 3/8'(inch)


3. To stop all crane movement the ______ signal should be used.
Flash Tank
Dog Everything
34 feet
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.


4. Which of the following is NOT a reason for using cutting oil when threading pipe?
To protect the threads from rust.
Hydrostatic
the employer
foot valve


5. How much heat is required to raise 1/2 pound of water 1 degree F?
1/2 BTU
Flash Tank
Vaporization
foot valve


6. 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.
DWV
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
the core
foot valve


7. A vertical line in an isometric drawing represents...
true isometric
Up and Down
Red.. think M&M is RED
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.


8. When should a person designated as an attendant attempt to rescue a worker that is trapped?
15 PSI
Never
In the hot water heating pumps discharge piping.
8.33 pounds


9. What should the outside attendant do to rescue a worker who shows physiological effects of exposure in a confined space?
Notify response team and allow them to rescue.
Softener
Solder joints
Type K


10. What has the largest effect on pump alignment?
Magnesium
Pipe strain
take-off must be subtracted from the end-to-center measurement.
None


11. What type of flame should be used to cut carbon steel?
.7854 x D squared
Neutral
Hydrostatic
Not to scale - does not show locations of equipment. It shows pipe size and flow.


12. To view the west elevation the viewer's perspective is from the...
When a large volume of condensate is generated
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.
Eccentric reducers - flat on top
West of the building


13. To sense the temperature remotely from the thermostat location you would use...
Up and Down
Mechanical return is used.
Remote bulb
handle will bend


14. When using a cable come-a-long - what safety device will indicate overloading?
Axis of pipe should be on a 45 degree
Anchors
Globe
handle will bend


15. The specific weight of air and water is...
5 9/16'(inch)
1
14.7psia - always in PSI-A
62.4 pounds


16. Zinc chills or metal fume fever are caused from welding on __________ steel.
BUT
galvanized
Axis of pipe should be on a 45 degree
Softens it


17. OD for 6'(inch)

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18. The centerline of piping in a horizontal plane on an isometric drawing is most generally drawn at __________ degrees from the horizontal.
Dry expansion type
30 Degrees
Dog Everything
Basket


19. Guides are used near...
steel to copper joints
Blue... think b-LLLLue
(Total Height - Elevation) * .433 = psig
Anchors


20. Which component in a closed control loop is the primary element?
Sensor
cool and lubricate the die
Flash Tank
hydrometer


21. In a refrigeration system a condensable gas is...
orthographic
Ammonia
All the way to the shoulder
Expansion loop.


22. An increase in pressure will cause the boiling point of water to ________...
250 degrees
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
Increase
To provide movement cause from a change in temperature


23. When a pipe size is decreased by half - the carrying capacity of the pipe decreases by...
Quarter
15 Feet
Vaporization
840


24. Where should the high pressure condensate be piped to before entering the receiver?
Center of the pipe
Primer
Flash Tank
take-off must be subtracted from the end-to-center measurement.


25. What is the specific gravity of water?
the employer
1
Blue... think b-LLLLue
4 times


26. OD for 3'(inch)

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27. A __________ displacement pump discharges a definite quantity of liquid for each cycle.
4 1/2'(inch)
protect worker safety and health
Sch 80 Steel pipe
Positive


28. A rating of 150# refers to a flange's...
Vaporization
NEVER!
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)
Pressure rating


29. A system which the refrigerant is in the shell and cools the fluid in the tubes is...
Globe
Flooded
Pipe penetration
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)


30. What is the best gasket to use on a flanged joint on medium pressure steam?
Spiral Wound
Bight - running end and standing part
West of the building
1 5/16'(inch)


31. Momentarily closing the starting switch to check the rotation of the pump is known as __________ the pump.
Water
supporter of combustion
Bumping
Too fast of a travel rate


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

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33. Which way should the bevel face on an orifice plate?
180
1728
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.
Down Stream


34. What causes pressure drop?
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.
Allow moisture to escape
Increase in friction
Protection for loss of water in the boiler.


35. Which of the elements of a wire rope aid in absorbing '(inch)Shock Loads'(inch)?
7.48
the core
Argon
In a pressure gauge


36. How much does 1 cubic foot of air weigh?
75 degrees - also 4 to 1
.075lbs
set point
BCuP - Stands for Brazed Copper Phosphorus


37. Which of the following is a key element of a comprehensive safety and health program?
Argon
cool and lubricate the die
Hazard prevention and control.
Above the main


38. In the cooling cycle - which component throttles the flow of refrigerant?
In the direction of flow
Flat position only
Expansion Device
14.7psia - always in PSI-A


39. What is the minimum safe clearance between cranes and energized power lines operating at 50kV or below?
Controller
10 feet
Raise the load
Pressure rating


40. OD for 1'(inch)

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41. Name the three methods of transferring heat.
2 3/8'(inch)
Center of the pipe
Conduction - convection and radiant.
Eccentric reducers - flat on top


42. Annealing copper...
To provide movement cause from a change in temperature
Act as a safety device to shut off the motor if the operator's foot is removed from the switch.
Softens it
bowline on a bight


43. The type of drawing that views a building by looking directly at the front - top and side is referred to as a/an ___________ drawing.
Sch 80 Steel pipe
.0361
orthographic
radius squared times PI


44. What are 3 fuel gases used for heating pipe or tubing?
None
MAPP - acetylene - and propane
The flow of a liquid into a small space
set point


45. In a piping installation allowing for expansion in two directions - how should the anchor(s) and guide(s) be positioned relative to each other?
BCuP - Stands for Brazed Copper Phosphorus
Tagged and removed from service.
Guide - Anchor - Guide
.7854 x D squared


46. How do you determine gear ratios?

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47. The density of 1 cubic inch of Mercury is...
8.33 pounds
.491lbs
7.48
The type of coating and current


48. An ejector pump is typically used to pump __________.
3.1416
Alloying
hydrometer
sewage


49. What causes water hammer?
Insufficient condensate drainage
Raise the load
212 degrees F
3 1/2'(inch)


50. What is the standard pressure range for a pneumatic signal?
Vaporization
14'(inch)
Alloying
3 to 15 psi