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. What causes water to move in a Hydronic system?
The pump creates a differential in pressure that moves the water.
steam and condensate flowing in the same direction
1728
180

2. What type of sensor is directly in the process stream?
Immersion sensor
Yellow.. think Dee Double U is yelloWWW
Climbing the cross braces.
1.5

3. A valve on the suction side of the pump should be...
2 and 1
Before the strainer and fully open.
Two Hole
bowline on a bight

4. Although the model codes usually say the melting point of a brazing alloy must be at least 1000º F - the technical temperature specified by the Copper Development Association and the American Welding Society is __________ degrees Fahrenheit.
To provide movement cause from a change in temperature
Tagged and removed from service.
840
NEVER!

5. 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?
Its cheaper!
100% of the rated capacity
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.
Snubber

6. An ejector pump is typically used to pump __________.
steel to copper joints
1
sewage
Coating

7. What does the evaporator do?
discharge
Solder joints
Allow moisture to escape
On low side of the system and expands liquid to low pressure gas.

8. When a flux joint is overheated it will not...
Blue... think b-LLLLue
near the middle of the jaws
14'(inch)
Fuse

9. To determine the set on a 45 degree offset you would multiply the travel by...
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
.707
1:48 - because 1/4 of an inch is 1/48th of a foot
Expansion loop.

10. When a cranes signaler's hand is pointed up with his finger moving in a circle it means to...
Globe valve
200 lbs
On low side of the system and expands liquid to low pressure gas.
Raise the load

11. What are the three rope parts used in tying knots and hitches?
Bight - running end and standing part
Clove hitch with a half hitch
Two Hole
Basket

12. A fan coil uses ______ to distribute heating or cooling to the space.
Forced convection - because the FAN forces convection!
Coating
The pump creates a differential in pressure that moves the water.
discharge

13. What type of copper is recommended for refrigeration?
Bumping
75 degrees - also 4 to 1
Expansion loop.
Type K

14. One gallon of water occupies how many cubic feet?
Neutral
an eccentric reducer flat on top
bowline on a bight
.135 cu ft

15. What is the purpose of the expansion joint in a steam system?
All position
14.7 psia
Argon
To provide movement cause from a change in temperature

16. The density of water is...
Too fast of a travel rate
62.4
Clean all surfaces
Immersion sensor

17. A __________ displacement pump discharges a definite quantity of liquid for each cycle.
6 5/8'(inch)
Positive
Controller
.7854 x D squared

18. A _______________ reamer should NOT be used with power operated pipe threading equipment
Spiral
Eccentric reducer (flat on top)
To allow for thermal movement
5 9/16'(inch)

19. How much heat is required to raise 1/2 pound of water 1 degree F?
The science of heat transfer using water.
1/2 BTU
Material Safety Data Sheet
sewage

20. All of the following are process control elements EXCEPT...
piping
bowline on a bight
Fuse
ALWAYS

21. The treatment of liquids in motion is known as...
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.
Before the strainer and fully open.
Hydraulics
6 5/8'(inch)

22. How often should the atmosphere be tested in a confined space?
Continuously
soft tempered
Flat position only
Remove the packing

23. The type of drawing that views a building by looking directly at the front - top and side is referred to as a/an ___________ drawing.
orthographic
Controller
Globe
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.

24. A triple-duty valve is installed...
6 5/8'(inch)
In the hot water heating pumps discharge piping.
2.31ft
25' from any worker

25. A sling is weakest in which position?
.0361
Choked position
Discharge
Pipe strain

26. How many 2'(inch) pipes can be supplied from a 6'(inch) header?
9
Center of the pipe
Two Hole
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.

27. In one cubic foot there are _________ cubic inches.
Beam clamp
Absolute
hydrometer
1728

28. In the cooling cycle - which component throttles the flow of refrigerant?
Globe valve
Expansion Device
The tensile strength of the rod in PSI times 1 -000
8.33lbs

29. Oil is used on a pipe machine to...
Bight - running end and standing part
cool and lubricate the die
.0361
piping

30. Before attaching regulators to an oxygen cylinder...
Forced convection - because the FAN forces convection!
None
blow the valves for a moment
13/16'(inch)

31. What is the welding position 3 - on the electrode mean?
The temperature that the joints are made - the flux and temperatures of the system
Remove any paint or rust.
Flat position only
Magnesium

32. Which rigging configuration has the greatest sling strength?
Ball joint - Bellows Joint and Packed Joint
Basket
dry expansion
BCuP - Stands for Brazed Copper Phosphorus

33. What are the main differences between soldering and brazing?
The flux burns and the joint becomes ineffective
The temperature that the joints are made - the flux and temperatures of the system
Snubber
Crimson... think aCRimson

34. On a centrifugal pump what is rotated by the motor?
.491lbs
5 9/16'(inch)
The impeller
Coating

35. What does GFCI stand for?
.625
Raise the load
Ground Fault Circuit Interrupter
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)

36. Which of the following is the decimal equivalent of 5/8'(inch)
.625
Green
galvanized
The flux is in the filler material

37. In a Hydronic heating system - units at the top of the system not heating are likely to be...
return fitting
Air Bound
Insufficient condensate drainage
.491lbs

38. Guides are used near...
8 5/8'(inch)
Insure progressively tighter fit
Anchors
Purge the line when brazing

39. To view the west elevation the viewer's perspective is from the...
Pipe penetration
West of the building
handle will bend
Dry expansion type

40. What size hole should be cut into a main to saddle ON a smaller pipe?
Roller hangers
The same ID as the branch
231
Large end to smaller end to center(bull)

41. A Hartford loop is used for...
In the hot water heating pumps discharge piping.
Protection for loss of water in the boiler.
The flux burns and the joint becomes ineffective
Not to scale - does not show locations of equipment. It shows pipe size and flow.

42. What size hole should be cut into a main to saddle IN a smaller pipe?
The same OD as the branch
Latent
Flat and horizontal positions
sewage

43. What is the expansion and compression of water vapor in a pump?
steel to copper joints
radius squared times PI
Cavitation
200 lbs

44. When using a cable come-a-long - what safety device will indicate overloading?
The same OD as the branch
handle will bend
Expansion Device
(Total Height - Elevation) * .433 = psig

45. Which of the following is NOT acceptable as part of a personal fall arrest system?
Argon
Body belts
14.7psia - always in PSI-A
Sch 40

46. Which of the elements of a wire rope aid in absorbing '(inch)Shock Loads'(inch)?
The tubing has been cleaned for oxygen service
100% of the rated capacity
the core
Air Bound

47. What is the purpose of the oxygen and acetylene regulators?
In the hot water heating pumps discharge piping.
To reduce the pressure from the cylinders to safe and workable pressures
Body belts
1/2 BTU

48. If the travel of a 45 degree offset is known - what formula can be used to find the advance?
To reduce the pressure from the cylinders to safe and workable pressures
180
.707 x Travel
near the middle of the jaws

49. To determine the face to center measurement of a long radius 90 degree elbow - multiply the pipe size by...
1.5
Down Stream
Tagged and removed from service.
Globe

50. When a soldered joint is overheated...
8 5/8'(inch)
The flux burns and the joint becomes ineffective
Pressure rating
4 to 20 milliamps