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. How often should the atmosphere be tested in a confined space?
25 feet
Continuously
sewage
Increase in friction

2. What has the largest effect on pump alignment?
Clove hitch with a half hitch
Capillary action
Basket
Pipe strain

3. Which of the following methods of access to a scaffold is prohibited?
Climbing the cross braces.
The flux is in the filler material
Expansion Device
orthographic

4. What type of sensor is directly in the process stream?
10 feet
tangent 1/2 angle x radius
Increase
Immersion sensor

5. OD for 8'(inch)

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6. When is it safe to remove the old packing from a valve that is under pressure?
NEVER!
Clove hitch with a half hitch
Act as a safety device to shut off the motor if the operator's foot is removed from the switch.
Flat and horizontal positions

7. What is the welding position 2 - on the electrode mean?
Hazard prevention and control.
Flat and horizontal positions
Latent
The science of heat transfer using water.

8. The change in state from solid to liquid is known as...
The temperature that the joints are made - the flux and temperatures of the system
Fusion
Softener
Flash Tank

9. What is the purpose of the oxygen and acetylene regulators?
Green
Eccentric reducer (flat on top)
To reduce the pressure from the cylinders to safe and workable pressures
1

10. The change in state from a liquid to gas is known as...
tangent 1/2 angle x radius
Vaporization
Pipe strain
Solder joints

11. OD for 1/2'(inch)

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12. Name the three methods of transferring heat.
ALWAYS
3 to 15 psi
To chemically prepare the pieces for soldering
Conduction - convection and radiant.

13. What type of copper tubing joint requires use of a ferrule?
compression
Pipe penetration
250 degrees
Spring hanger

14. The color code for DWV copper is...
Yellow.. think Dee Double U is yelloWWW
Conduction - convection and radiant.
Allow moisture to escape
Ammonia

15. The last two digits on an E-6010 electrode specify...
3 to 15 psi
Discharge
the type of coating and current
Hydrostatic

16. What is Hydronics?
Sch 40
foot valve
Pipe strain
The science of heat transfer using water.

17. When gripping a pipe with a pipe wrench - the wrench should be adjusted so the pipe is...
near the middle of the jaws
Increase in friction
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.
The tensile strength of the rod in PSI times 1 -000

18. Before attaching regulators to an oxygen cylinder...
blow the valves for a moment
(Total Height - Elevation) * .433 = psig
Equalizing line
lower hook

19. To determine the set on a 45 degree offset you would multiply the travel by...
All the way to the shoulder
MAPP - acetylene - and propane
an eccentric reducer flat on top
.707

20. A diamond on an instrumentation loop diagram encloses information concerning...
Before the strainer and fully open.
Ball joint - Bellows Joint and Packed Joint
Set point
Hydrostatics

21. A fan coil uses ______ to distribute heating or cooling to the space.
Forced convection - because the FAN forces convection!
25' from any worker
.491lbs
Expansion loop.

22. A direct acting thermostat is used to...
After cutting
Increase the pressure when the temperature increases
Axis of pipe should be on a 45 degree
zinc

23. What type of expansion joint utilizes mechanical movement?
return fitting
To provide movement cause from a change in temperature
Ball joint - Bellows Joint and Packed Joint
8.33lbs

24. The symbol for pi is equivalent to...
Spring hanger
Neutral
Flux
3.1416

25. When lifting objects with sharp edges you should use a...
Erratic readings
Softener
supporter of combustion
Increase in friction

26. What is the standard pressure range for a pneumatic signal?
hydrometer
Discharge
840
3 to 15 psi

27. If a horizontal pipe connecting to the suction side of a pump requires a reducer - it should be connected with...
Solder joints
compression
DWV
an eccentric reducer flat on top

28. The control point adjustment on a receiver is used to change the _______________.
Height * .433 = psig
set point
Allow moisture to escape
.625

29. What is capillary action?
212 degrees F
The flow of a liquid into a small space
.491lbs
Valve

30. The best knot to use when lifting pipe vertically is the...
DWV
Clove hitch with a half hitch
Eccentric reducers - flat on top
The type of coating and current

31. What is the standard for an electronic signal?
Climbing the cross braces.
62.4lbs
With the weld at a 45 degree angle
4 to 20 milliamps

32. Use of air as a power source is known as...
Pneumatics
Axis of pipe should be on a 45 degree
handle will bend
Choked position

33. Calculate head pressure in a section of vertical pipe?
Height * .433 = psig
13/16'(inch)
Insert pipe into fitting and turn 1/4 turn and hold
Insure progressively tighter fit

34. When a cranes signaler's hand is pointed up with his finger moving in a circle it means to...
.707
62.4lbs
Raise the load
4 1/2'(inch)

35. A dielectric fitting should be used on...
Red.. think M&M is RED
36'(inch)
62.4
steel to copper joints

36. A schematic drawing is...
Up and Down
Hydrostatics
Spiral
Not to scale - does not show locations of equipment. It shows pipe size and flow.

37. What is the best gasket to use on a flanged joint on medium pressure steam?
In the direction of flow
.0361
Spiral Wound
2.31ft

38. What instrument is best for measuring vacuum?
Flooded
Manometer
Remove any paint or rust.
Insert pipe into fitting and turn 1/4 turn and hold

39. A vent is not needed on a condensate receiver when...
Hydrostatic
30 Degrees
Mechanical return is used.
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

40. The final step in the galvanizing of pipe is to dip the pipe into a bath of molten _________?
All position
Spring hanger
With the weld at a 45 degree angle
zinc

41. What do the first two digits mean in E7018 electrodes?
Pipe strain
5 9/16'(inch)
Bumping
The tensile strength of the rod in PSI times 1 -000

42. What are the main differences between soldering and brazing?
Alloying
The temperature that the joints are made - the flux and temperatures of the system
8.33 pounds
Bight - running end and standing part

43. OSHA was enacted to...
protect worker safety and health
Remove any paint or rust.
dry expansion
.707

44. Capillary action is used in...
Spiral Wound
Globe valve
Solder joints
Two Hole

45. What is the specific gravity of water?
Act as a safety device to shut off the motor if the operator's foot is removed from the switch.
1
Ground Fault Circuit Interrupter
true isometric

46. The specific gravity of a liquid can only be measured using the following instrument...
Erratic readings
hydrometer
.433psi
25' from any worker

47. What does a + plus sign mean?
Multiply the length of the hypotenuse of the roll and the set by 1.414
West of the building
orthographic
Pipe penetration

48. How much heat is required to raise 1/2 pound of water 1 degree F?
In the direction of flow
1/2 BTU
180
Height * .433 = psig

49. One gallon of water occupies how many cubic feet?
231
In a pressure gauge
.135 cu ft
Expansion loop.

50. A tag line should be used on a crane lift...
ALWAYS
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
Flat and horizontal positions
Steam