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 is typically a final control element?
Spiral
falls
Valve
Hazard prevention and control.

2. What is the expansion and compression of water vapor in a pump?
Water
Immersion sensor
13/16'(inch)
Cavitation

3. A cooling tower must have a ________ or be open-site.
an eccentric reducer flat on top
Depends on the desired action if the disc or plug becomes detatched from the stem. (Fail open or Fail closed)
Backflow preventer
Coating

4. Which one of the following alloys does not require flux when brazing copper to copper joints?
Positive
BCuP - Stands for Brazed Copper Phosphorus
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut
Controller

5. When brazing for medical gas or refrigeration always...
Expansion loop.
Purge the line when brazing
.0361
The Evaporator

6. A Hartford loop is used for...
Remove any paint or rust.
14'(inch)
To allow for thermal movement
Protection for loss of water in the boiler.

7. The best knot to use when lifting pipe vertically is the...
Clove hitch with a half hitch
tangent 1/2 angle x radius
cool and lubricate the die
A pry bar

8. The symbol for pi is equivalent to...
galvanized
Red.. think M&M is RED
Coating
3.1416

9. The most that a crane should be loaded is...
Primer
100% of the rated capacity
handle will bend
Vaporization

10. In the cooling cycle - which component throttles the flow of refrigerant?
Ground Fault Circuit Interrupter
Expansion Device
OD
Spiral

11. The pipe fitting that makes a 180 degree turn is called a/an?
return fitting
Allow moisture to escape
Globe
Fusion

12. What is the minimum thickness for threading PVC pipe?
Eccentric reducer (flat on top)
Sch 40
Neutral
To provide movement cause from a change in temperature

13. Annealing copper...
DWV
Softens it
Down Stream
Hazard prevention and control.

14. Which one of the following measures and takes action?
Remove any paint or rust.
With the weld at a 45 degree angle
Controller
3 to 15 psi

15. The device that controls the pressure in a low pressure steam boiler is called a...
supporter of combustion
Pressuretrol
Ammonia
Conduction - convection and radiant.

16. A valve on the suction side of the pump should be...
ALWAYS
Insufficient condensate drainage
Before the strainer and fully open.
Snubber

17. A schematic drawing is...
maximum rated capacity
Not to scale - does not show locations of equipment. It shows pipe size and flow.
Saturated
1.5

18. What type of hanger uses a spring that splits the rod?
Coating
9
Spring hanger
.491lbs

19. What are the three rope parts used in tying knots and hitches?
Bight - running end and standing part
Flux
Ammonia
Loosen the far bolts first

20. When using a cable come-a-long - what safety device will indicate overloading?
handle will bend
Never
Continuously
West of the building

21. When a soldered joint is overheated...
take-off must be subtracted from the end-to-center measurement.
Height * .433 = psig
Quarter
The flux burns and the joint becomes ineffective

22. The last two digits on an E-6010 electrode specify...
the type of coating and current
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
5 9/16'(inch)
Remove the packing

23. A single line drawing of a piping system represents the...
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)
Before the strainer and fully open.
Center of the pipe
Never

24. The main cause of undercutting is...
Too fast of a travel rate
foot valve
DWV
Tagged and removed from service.

25. What has the largest effect on pump alignment?
.01745 - 3.1416 - and .7854
Two Hole
Pipe strain
.707

26. What does the crane signal with the index finger pointed forward in a swirling motion signal?
Backflow preventer
Raise the load
an eccentric reducer flat on top
Increase

27. A bushing is NOT a good replacement for a reducer because...
.0361
Its cheaper!
Pipe penetration
galvanized

28. Both soldered and brazed joints are made by heating a properly prepared joint to the proper temperature and the flowing of a filler metal by means of...
Capillary action
Purge the line when brazing
take-off must be subtracted from the end-to-center measurement.
The Evaporator

29. A mixing valve has ___ inlets and ___ outlets.
Not to scale - does not show locations of equipment. It shows pipe size and flow.
Center of the pipe
2 and 1
4 times

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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

31. The function of a steam trap is to prevent the flow of ________________ - while allowing condensate and non-condensable gases to pass through.
Steam
Multiply the length of the hypotenuse of the roll and the set by 1.414
Spiral
.707 x Travel

32. If you double pipe size the carrying capacity is increased...
an eccentric reducer flat on top
Positive
soft tempered
4 times

33. What should be done first when preparing a copper joint?
Eccentric reducer (flat on top)
Arrange a wire rope clamp so that the dead end has the U bolts
zinc
Clean all surfaces

34. Ladders with visible defects - such as broken rungs - cracked side rails - or broken steps must be...
compression
Choked position
Tagged and removed from service.
Water

35. The amount of heat necessary bring about a change of state from solid to liquid or liquid to gas is known as _______________ heat.
When a large volume of condensate is generated
Latent
BUT
Notify response team and allow them to rescue.

36. A condensate receiver is used when...
When a large volume of condensate is generated
Groove
Large end to smaller end to center(bull)
galvanized

37. What effect does the fill pressure (static) have on a closed loop plumbing system?
4 to 20 milliamps
None
Body belts
Material Safety Data Sheet

38. How often should the atmosphere be tested in a confined space?
Coating
To allow for thermal movement
13/16'(inch)
Continuously

39. Which of the following constants are used when working with circles and areas?
Strainer
Too fast of a travel rate
.01745 - 3.1416 - and .7854
Never

40. An abrasive wheel should never run faster than it...
Before the strainer and fully open.
All position
maximum rated capacity
The flow of a liquid into a small space

41. What is the formula to calculate thermal expansion?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

42. One gallon of water weighs?
The tubing has been cleaned for oxygen service
.491lbs
8.33 pounds
NEVER!

43. One cubic foot of water weighs?
62.4 pounds
Remove any paint or rust.
Controller
Point at the base and sweep the base with the extinguisher

44. When a pipe size is decreased by half - the carrying capacity of the pipe decreases by...
Dry expansion type
The temperature that the joints are made - the flux and temperatures of the system
Quarter
Solder joints

45. What are the main differences between soldering and brazing?
Eccentric reducer (flat on top)
Condensate pump size
The temperature that the joints are made - the flux and temperatures of the system
Solder joints

46. With a high pressure valve you should never _____ under pressure.
1/2 BTU
The flow of a liquid into a small space
Remove the packing
Fuse

47. In a typical residential air conditioning system - the evaporator is of the _______________ type - where the liquid refrigerant should be totally vaporized before it reaches the outlet of the evaporator.
Positive
Dry expansion type
Cavitation
Clean all surfaces

48. What type of sensor is directly in the process stream?
.0361
DWV
Immersion sensor
foot valve

49. The treatment of liquids at rest is known as...
an eccentric reducer flat on top
To chemically prepare the pieces for soldering
Hydrostatics
Never

50. The color code for ACR copper is...
Crimson... think aCRimson
Positive
Pipe strain
cool and lubricate the die