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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. The symbol for pi is equivalent to...
Globe valve
14'(inch)
Too fast of a travel rate
3.1416

2. Soldered joints should never be used on systems above...
All the way to the shoulder
250 degrees
galvanized
To protect the threads from rust.

3. A bushing is NOT a good replacement for a reducer because...
10 feet
Globe valve
Pipe penetration
Its cheaper!

4. What do the first two digits mean in E7018 electrodes?
The tensile strength of the rod in PSI times 1 -000
Never
2 3/8'(inch)
The same ID as the branch

5. A vent is not needed on a condensate receiver when...
Mechanical return is used.
7.0
pi * radius squared
Increase the pressure when the temperature increases

6. What is used to soften PVC and remove the gloss?
(Total Height - Elevation) * .433 = psig
Primer
Increase
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)

7. To sense the temperature remotely from the thermostat location you would use...
.7854 x D squared
BCuP - Stands for Brazed Copper Phosphorus
Remote bulb
Allow moisture to escape

8. Which of the following types of copper tube has the smallest wall thickness?
DWV
West of the building
orthographic
To allow for thermal movement

9. An increase in pressure will cause the boiling point of water to ________...
34 feet
Increase
On low side of the system and expands liquid to low pressure gas.
75 degrees - also 4 to 1

10. Which of the following has the largest inside diameter?
Immersion sensor
Schedule 10
Quarter
75 degrees - also 4 to 1

11. What is the standard pressure range for a pneumatic signal?
After cutting
Spiral Wound
Alloying
3 to 15 psi

12. The color code for type L copper is...
Blue... think b-LLLLue
galvanized
Beam clamp
25 feet

13. What is installed after the isolation valve and before the trap union on a standard trap assembly?
The Evaporator
Softens it
Flat position only
Strainer

14. Before attaching regulators to an oxygen cylinder...
Its cheaper!
When a large volume of condensate is generated
Mechanical return is used.
blow the valves for a moment

15. When a liquid changes immediately to a vapor it is called...
Notify response team and allow them to rescue.
Type K
Flashing
A pry bar

16. The specific weight of mercury is...
.0361
Controller
1 foot
Backflow preventer

17. A mixing valve has ___ inlets and ___ outlets.
Hydrostatic
2 3/8'(inch)
2 and 1
The type of coating and current

18. A schematic drawing is...
set point
Not to scale - does not show locations of equipment. It shows pipe size and flow.
The temperature that the joints are made - the flux and temperatures of the system
Globe

19. An abrasive wheel should never run faster than it...
maximum rated capacity
840
Sch 40
Body belts

20. What is the welding position 1 - on the electrode mean?
return fitting
Green
Sch 40
All position

21. The sum of atmospheric and gauge pressure is known as __________ pressure.
Raise the load
discharge
.7854 x D squared
Absolute

22. When ordering ACR copper specify the size by...
OD
Arrange a wire rope clamp so that the dead end has the U bolts
Globe valve
Point thumb up

23. What size hole should be cut into a main to saddle IN a smaller pipe?
The same OD as the branch
A pry bar
1.25'(inch)
1/2 BTU

24. When using a cable come-a-long - what safety device will indicate overloading?
handle will bend
Remove the packing
Ball joint - Bellows Joint and Packed Joint
Ammonia

25. The 6G welding position is...
With the weld at a 45 degree angle
Climbing the cross braces.
Raise the load
To allow for thermal movement

26. When loosening the bolts on a flange one should...
pi * radius squared
2 and 1
Loosen the far bolts first
Clean all surfaces

27. A single line drawing of a piping system represents the...
steel to copper joints
Mechanical/Thermostatic
ALWAYS
Center of the pipe

28. An up-feed steam heating system has the heating units...
Coating
Ground Fault Circuit Interrupter
The impeller
Above the main

29. What is the purpose for a weep hole in a saddle pad?
Allow moisture to escape
All the way to the shoulder
MAPP - acetylene - and propane
lower hook

30. The color code for DWV copper is...
After cutting
BCuP - Stands for Brazed Copper Phosphorus
Axis of pipe should be on a 45 degree
Yellow.. think Dee Double U is yelloWWW

31. There are __________ cubic inches in a gallon.
231
15 PSI
Clean all surfaces
1 foot

32. Which of the following is NOT acceptable as part of a personal fall arrest system?
Globe valve
Increase
7.0
Body belts

33. The specific gravity of a gas is relative to the specific weight of _______________ - which has a specific gravity of one.
Fusion
Air
None
BUT

34. The last two digits on an E-6010 electrode specify...
Expansion loop.
The flow of a liquid into a small space
the type of coating and current
cool and lubricate the die

35. Condensate lines should be pitched...
In the direction of flow
Increase in friction
Dog Everything
Guide - Anchor - Guide

36. What is the sum of all angles in a triangle?
180
Spring hanger
Condensate pump size
Point at the base and sweep the base with the extinguisher

37. Which of the following types of clamps are used to dampen a pipe's movement?
Allow moisture to escape
Type K
Snubber
true isometric

38. 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.
Flashing
62.4 pounds
In the hot water heating pumps discharge piping.
foot valve

39. What type of sensor is directly in the process stream?
Immersion sensor
the employer
The same OD as the branch
Clove hitch with a half hitch

40. The change in state from a liquid to gas is known as...
Pipe strain
Neutral
Expansion Device
Vaporization

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

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42. When a loop is needed at any point between ends of a rope - the proper knot to tie is the...
Strainer
bowline on a bight
Equalizing line
All position

43. The pipe fitting that makes a 180 degree turn is called a/an?
3 1/2'(inch)
return fitting
Hydrostatics
Center of the pipe

44. The ______ is used to protect the weld puddle from contamination in the SMAW process.
orthographic
Flux
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 flow of a liquid into a small space

45. To figure the end-to-end measurement of a piece of pipe when the end-to-end center measurement is known the...
Clean all surfaces
1.25'(inch)
take-off must be subtracted from the end-to-center measurement.
the employer

46. How far should a copper tube be inserted into a cup for a brazed joint?
All the way to the shoulder
Act as a safety device to shut off the motor if the operator's foot is removed from the switch.
Remove any paint or rust.
Pipe strain

47. What is the formula to figure the area of a circle?
Sch 40
Expansion Device
radius squared times PI
.491lbs

48. A Hartford loop is used for...
Protection for loss of water in the boiler.
Guide - Anchor - Guide
Two Hole
orthographic

49. What size hole should be cut into a main to saddle ON a smaller pipe?
The same ID as the branch
2 3/8'(inch)
1 5/16'(inch)
Anchors

50. What would be the result of an incorrectly installed orifice plate?
Fuel - Heat - Oxygen
Erratic readings
Center of the pipe
Globe