Test your basic knowledge |

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. Which component in a closed control loop is the primary element?
Height * .433 = psig
OD
62.4
Sensor

2. When a cranes signaler's hand is pointed up with his finger moving in a circle it means to...
Raise the load
Above the main
zinc
Manometer

3. What are the three types of steam traps?
Thermostatic - Thermodynamic and Mechanical
falls
Insert pipe into fitting and turn 1/4 turn and hold
Protection for loss of water in the boiler.

4. An abrasive wheel should never run faster than it...
dry expansion
Red.. think M&M is RED
maximum rated capacity
Never

5. What is the purpose for a weep hole in a saddle pad?
BCuP - Stands for Brazed Copper Phosphorus
steel to copper joints
Allow moisture to escape
With the weld at a 45 degree angle

6. The pipe that connects the steam header to the boiler return connection is the...
1
To provide movement cause from a change in temperature
Equalizing line
Backflow preventer

7. A concentric reducer could be used to connect to a horizontal pump _______________ line.
Schedule 10
Mechanical/Thermostatic
Discharge
no valves permitted

8. The symbol for pi is equivalent to...
3.1416
.491lbs
Flat position only
Point at the base and sweep the base with the extinguisher

9. Steam in contact with the water it has been generated from is known as ________________ steam.
The pump creates a differential in pressure that moves the water.
Ball joint - Bellows Joint and Packed Joint
25 feet
Saturated

10. The best knot to use when lifting pipe vertically is the...
Increase the pressure when the temperature increases
Clove hitch with a half hitch
handle will bend
piping

11. What is the minimum thickness for threading PVC pipe?
The science of heat transfer using water.
To protect the threads from rust.
Sch 40
On high side of the system and turns gas to liquid.

12. OSHA was enacted to...
Hydrostatic
orthographic
protect worker safety and health
Erratic readings

13. The centerline of piping in a horizontal plane on an isometric drawing is most generally drawn at __________ degrees from the horizontal.
34 feet
30 Degrees
The temperature that the joints are made - the flux and temperatures of the system
14.7psia - always in PSI-A

14. How much heat is required to raise 1/2 pound of water 1 degree F?
1/2 BTU
Insert pipe into fitting and turn 1/4 turn and hold
steam and condensate flowing in the same direction
Above the main

15. What is Hydronics?
compression
The science of heat transfer using water.
250 degrees
Yellow.. think Dee Double U is yelloWWW

16. What does a condenser do?
Sensor
Continuously
On high side of the system and turns gas to liquid.
1728

17. An oil separator is required on systems using...
Ammonia
Increase in friction
hydrometer
Backflow preventer

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

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19. What causes pressure drop?
Point thumb up
36'(inch)
Axis of pipe should be on a 45 degree
Increase in friction

20. What are the main differences between soldering and brazing?
The temperature that the joints are made - the flux and temperatures of the system
The flow of a liquid into a small space
Above the main
1728

21. There are __________ cubic inches in a gallon.
3 1/2'(inch)
Expansion loop.
231
The temperature that the joints are made - the flux and temperatures of the system

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

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

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24. Calculate head pressure of a vertical pipe at specific elevations.
Increase
Guide - Anchor - Guide
(Total Height - Elevation) * .433 = psig
dry expansion

25. Capillary action is used in...
Increase in friction
.707 x Travel
Solder joints
The tensile strength of the rod in PSI times 1 -000

26. A tag line should be used on a crane lift...
ALWAYS
Absolute
1.5
Continuously

27. Which of the following is a key element of a comprehensive safety and health program?
the core
pi * radius squared
NEVER!
Hazard prevention and control.

28. A cooling tower must have a ________ or be open-site.
30 Degrees
radius squared times PI
Backflow preventer
Point thumb up

29. The type of valve permitted downstream of a temperature and pressure relief valve on a water heater is...
Alloying
no valves permitted
.433psi
3 to 15 psi

30. To assemble a 4 bolt flange...
1.25'(inch)
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
Tagged and removed from service.
Pressuretrol

31. The last digit on a welding electrode refers to the __________ of the electrode.
Coating
14.7psia - always in PSI-A
Too fast of a travel rate
To chemically prepare the pieces for soldering

32. To stop all crane movement the ______ signal should be used.
Notify response team and allow them to rescue.
Dog Everything
Globe
the type of coating and current

33. An ejector pump is typically used to pump __________.
sewage
Raise the load
30 Degrees
Condensate pump size

34. What is not a requirement to size the steam trap on a heating unit?
Condensate pump size
dry expansion
sewage
Blue... think b-LLLLue

35. What is the welding position 2 - on the electrode mean?
Arrange a wire rope clamp so that the dead end has the U bolts
Prevailing wind speed and direction - environmental concerns - zoning requirements
200 lbs
Flat and horizontal positions

36. The amount of heat necessary bring about a change of state from solid to liquid or liquid to gas is known as _______________ heat.
After cutting
Pipe strain
Latent
To chemically prepare the pieces for soldering

37. The final step in the galvanizing of pipe is to dip the pipe into a bath of molten _________?
On high side of the system and turns gas to liquid.
Increase
Yellow.. think Dee Double U is yelloWWW
zinc

38. What causes water to move in a Hydronic system?
The pump creates a differential in pressure that moves the water.
Sch 40
Globe
To provide movement cause from a change in temperature

39. To determine the face to center measurement of a long radius 90 degree elbow - multiply the pipe size by...
BUT
.491lbs
Remove any paint or rust.
1.5

40. What type of flame should be used to cut carbon steel?
.075lbs
Spiral Wound
Neutral
34 feet

41. What is the purpose of the oxygen and acetylene regulators?
Axis of pipe should be on a 45 degree
13/16'(inch)
To reduce the pressure from the cylinders to safe and workable pressures
Sch 40

42. A rating of 150# refers to a flange's...
Set point
Alloying
Pressure rating
Magnesium

43. Use of air as a power source is known as...
maximum rated capacity
Erratic readings
Fuel - Heat - Oxygen
Pneumatics

44. An increase in pressure will cause the boiling point of water to ________...
radius squared times PI
The impeller
Air
Increase

45. What would be the result of an incorrectly installed orifice plate?
Protection for loss of water in the boiler.
Erratic readings
All position
840

46. What type of valve should be used to bypass a control valve?
Increase
Capillary action
Forced convection - because the FAN forces convection!
Globe valve

47. The type of drawing that most closely resembles an object as the eye would see it is referred to as a/an __________ drawing.
30 Degrees
falls
the type of coating and current
true isometric

48. For an extension ladder to be at the correct angle for safe use on a working surface 20ft high. The ladder must be located how many feet away from the base?
Waterlogged
Sensor
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.
Set point

49. To order a reducing tee you should specify the size by...
Fusion
On high side of the system and turns gas to liquid.
Large end to smaller end to center(bull)
2.31ft

50. One gallon of water weighs?
Two Hole
Fuse
.135 cu ft
8.33 pounds