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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. What is the sum of all angles in a triangle?
the employer
180
All the way to the shoulder
discharge

2. A mixing valve has ___ inlets and ___ outlets.
Coating
Large end to smaller end to center(bull)
The Evaporator
2 and 1

3. The color code for type M copper is...
Above the main
Solder joints
the type of coating and current
Red.. think M&M is RED

4. Which way should the bevel face on an orifice plate?
Down Stream
Point thumb up
.7854 x D squared
1728

5. When a loop is needed at any point between ends of a rope - the proper knot to tie is the...
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.
Mechanical return is used.
bowline on a bight
To allow for thermal movement

6. The letters MSDS stand for...
BCuP - Stands for Brazed Copper Phosphorus
Green
Material Safety Data Sheet
The flow of a liquid into a small space

7. Why is it necessary to use roller hangers?
galvanized
Red.. think M&M is RED
To allow for thermal movement
Waterlogged

8. What instrument is best for measuring vacuum?
Allow moisture to escape
Latent
Manometer
Depends on the desired action if the disc or plug becomes detatched from the stem. (Fail open or Fail closed)

9. One foot of water exerts...
.433psi
Coating
Tagged and removed from service.
Set point

10. The best knot to use when lifting pipe vertically is the...
On high side of the system and turns gas to liquid.
Bight - running end and standing part
Clove hitch with a half hitch
Thermostatic - Thermodynamic and Mechanical

11. The pressure exerted by a liquid at rest is...
Hydrostatic
All position
.135 cu ft
Insure progressively tighter fit

12. A neutral reading on the PH scale is...
All the way to the shoulder
7.0
.075lbs
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.

13. Where should the pressure enter a globe valve?
Depends on the desired action if the disc or plug becomes detatched from the stem. (Fail open or Fail closed)
Body belts
Segmental
foot valve

14. If a horizontal pipe connecting to the suction side of a pump requires a reducer - it should be connected with...
Increase in friction
9
Increase
an eccentric reducer flat on top

15. The device that controls the pressure in a low pressure steam boiler is called a...
Pressuretrol
Guide - Anchor - Guide
Saturated
Valve

16. A thermostatic steam trap that fails in the closed position would cause a heating unit to become...
Waterlogged
set point
Notify response team and allow them to rescue.
Beam clamp

17. The only entity that has the responsibility and authority to appoint the competent person is...
the employer
supporter of combustion
Ground Fault Circuit Interrupter
.707

18. What should the outside attendant do to rescue a worker who shows physiological effects of exposure in a confined space?
Anchors
hydrometer
Point at the base and sweep the base with the extinguisher
Notify response team and allow them to rescue.

19. On a centrifugal pump what is rotated by the motor?
handle will bend
The tubing has been cleaned for oxygen service
The impeller
.7854 x D squared

20. There are __________ gallons in a cubic foot.
Quarter
West of the building
Latent
7.48

21. Since _______________ is virtually incompressible - pressure has little effect on its volume.
Water
.707 x Travel
8.33lbs
near the middle of the jaws

22. Which of the following constants are used when working with circles and areas?
.707
Two Hole
.01745 - 3.1416 - and .7854
4 1/2'(inch)

23. What type of expansion joint does NOT utilize mechanical movement?
Sch 40
Expansion loop.
Raise the load
Above the main

24. What does the term '(inch)never saddle a dead horse'(inch) mean?
The stud bolt is stronger than a machine bolt of the same size and material.
Arrange a wire rope clamp so that the dead end has the U bolts
2 3/8'(inch)
NEVER!

25. Which of the following is NOT a reason to use stud bolts instead of machine bolts for bolting flanged piping joints?
handle will bend
The same OD as the branch
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 stud bolt is stronger than a machine bolt of the same size and material.

26. To determine the set on a 45 degree offset you would multiply the travel by...
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
1.5
.707
Sch 40

27. Guides are used near...
Anchors
Neutral
The pump creates a differential in pressure that moves the water.
Yellow.. think Dee Double U is yelloWWW

28. The type of drawing that views a building by looking directly at the front - top and side is referred to as a/an ___________ drawing.
.707 x Travel
On low side of the system and expands liquid to low pressure gas.
Equalizing line
orthographic

29. The amount of heat necessary bring about a change of state from solid to liquid or liquid to gas is known as _______________ heat.
Latent
1 5/16'(inch)
Hazard prevention and control.
4 1/2'(inch)

30. One atmosphere is equal to...
Remove the packing
14.7psia - always in PSI-A
Air
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

31. The leading cause of on-the-job deaths in the construction industry is _______________.
falls
Eccentric reducer (flat on top)
Pressure rating
Allow moisture to escape

32. A diamond on an instrumentation loop diagram encloses information concerning...
Positive
Set point
Dog Everything
The Evaporator

33. What causes water hammer?
Continuously
.135 cu ft
the type of coating and current
Insufficient condensate drainage

34. Standard atmospheric pressure at sea level is _____...
Clean all surfaces
Basket
Body belts
14.7 psia

35. OD for 5'(inch)

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36. What should be done first when preparing a copper joint?
Eccentric reducers - flat on top
On low side of the system and expands liquid to low pressure gas.
Type K
Clean all surfaces

37. How far should a copper tube be inserted into a cup for a brazed joint?
To allow for thermal movement
lower hook
All the way to the shoulder
8.33 pounds

38. Why can flux be omitted in a brazed joint?
Hydrostatics
The flux is in the filler material
.707
1

39. What is the standard pressure range for a pneumatic signal?
On low side of the system and expands liquid to low pressure gas.
3 to 15 psi
Point thumb up
Set point

40. What should be done to prepare a flange for the gasket installation?
Remove any paint or rust.
1.5
After cutting
.135 cu ft

41. A valve on the suction side of the pump should be...
orthographic
Forced convection - because the FAN forces convection!
Yellow.. think Dee Double U is yelloWWW
Before the strainer and fully open.

42. The change in state from a liquid to gas is known as...
Vaporization
840
Pipe penetration
DWV

43. A concentric reducer could be used to connect to a horizontal pump _______________ line.
discharge
Erratic readings
Equalizing line
62.4lbs

44. 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.
14'(inch)
Pressure rating
Fusion

45. When is it safe to remove the old packing from a valve that is under pressure?
Axis of pipe should be on a 45 degree
3 1/2'(inch)
NEVER!
62.4 pounds

46. An oil separator is required on systems using...
Ammonia
Strainer
protect worker safety and health
The pump creates a differential in pressure that moves the water.

47. Ladders with visible defects - such as broken rungs - cracked side rails - or broken steps must be...
Two Hole
Green... think KKelly GREEN
Tagged and removed from service.
Choked position

48. Where is a bourdon tube found?
The tubing has been cleaned for oxygen service
The temperature that the joints are made - the flux and temperatures of the system
Increase the pressure when the temperature increases
In a pressure gauge

49. A tag line should be used on a crane lift...
the employer
14'(inch)
Yellow.. think Dee Double U is yelloWWW
ALWAYS

50. An increase in pressure will cause the boiling point of water to ________...
In the direction of flow
Not to scale - does not show locations of equipment. It shows pipe size and flow.
Increase
2 3/8'(inch)