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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. The specific weight of mercury is...
The Evaporator
.0361
4 to 20 milliamps
Insert pipe into fitting and turn 1/4 turn and hold

2. If you double pipe size the carrying capacity is increased...
.075lbs
4 times
The same OD as the branch
.707 x Travel

3. Steam supply using parallel flow is...
.707 x Travel
steam and condensate flowing in the same direction
Flux
Remote bulb

4. The treatment of liquids in motion is known as...
Hydraulics
Spiral
3 to 15 psi
When a large volume of condensate is generated

5. The last two digits on an E-6010 electrode specify
The type of coating and current
The pump creates a differential in pressure that moves the water.
8.33 pounds
.0361

6. The proper way to extinguish a fire is to...
Ground Fault Circuit Interrupter
5 9/16'(inch)
3 to 15 psi
Point at the base and sweep the base with the extinguisher

7. There are __________ cubic inches in a gallon.
Globe valve
Eccentric reducer (flat on top)
Not to scale - does not show locations of equipment. It shows pipe size and flow.
231

8. The change in state from solid to liquid is known as...
Quarter
With the weld at a 45 degree angle
Fusion
Discharge

9. What does the stamp Oxy-Med stand for on copper tubing?
After cutting
Conduction - convection and radiant.
The tubing has been cleaned for oxygen service
Bumping

10. To view the west elevation the viewer's perspective is from the...
8.33 pounds
Multiply the length of the hypotenuse of the roll and the set by 1.414
14.7psia - always in PSI-A
West of the building

11. If the architectural scale is 1/4'(inch) equals 1 foot - the ratio would be...
Discharge
Hydraulics
1:48 - because 1/4 of an inch is 1/48th of a foot
protect worker safety and health

12. A vent is not needed on a condensate receiver when...
All position
Yellow.. think Dee Double U is yelloWWW
Mechanical return is used.
250 degrees

13. A sling is weakest in which position?
Conduction - convection and radiant.
Choked position
.433psi
Sensor

14. When a cranes signaler's hand is pointed up with his finger moving in a circle it means to...
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
tangent 1/2 angle x radius
Raise the load
Body belts

15. Factors in considering the site selection for a new cooling tower.
soft tempered
tangent 1/2 angle x radius
Prevailing wind speed and direction - environmental concerns - zoning requirements
7.48

16. To stop all crane movement the ______ signal should be used.
All position
Dog Everything
Ammonia
Tagged and removed from service.

17. 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.
Dry expansion type
1728
Flash Tank
Large end to smaller end to center(bull)

18. What is the sum of all angles in a triangle?
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
When a large volume of condensate is generated
25 feet
180

19. The main cause of undercutting is...
Hydrostatic
Point at the base and sweep the base with the extinguisher
.135 cu ft
Too fast of a travel rate

20. How far should a copper tube be inserted into a cup for a brazed joint?
Not to scale - does not show locations of equipment. It shows pipe size and flow.
Depends on the desired action if the disc or plug becomes detatched from the stem. (Fail open or Fail closed)
All the way to the shoulder
West of the building

21. The color code for type '(inch)K'(inch) copper is?
3 1/2'(inch)
BUT
the employer
Green

22. The density of 1 cubic inch of Mercury is...
Type K
62.4
no valves permitted
.491lbs

23. What does GFCI stand for?
Strainer
Globe
Ground Fault Circuit Interrupter
Hazard prevention and control.

24. One foot of water exerts...
Ground Fault Circuit Interrupter
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut
.433psi
In a pressure gauge

25. The best knot to use when lifting pipe vertically is the...
Remote bulb
A pry bar
Clove hitch with a half hitch
62.4lbs

26. The symbol for pi is equivalent to...
250 degrees
The pump creates a differential in pressure that moves the water.
A pry bar
3.1416

27. What is the weakest part of a chain hoist?
Choked position
lower hook
dry expansion
15 PSI

28. The centerline of piping in a horizontal plane on an isometric drawing is most generally drawn at __________ degrees from the horizontal.
Erratic readings
30 Degrees
Hydraulics
The temperature that the joints are made - the flux and temperatures of the system

29. What does the crane signal with the index finger pointed forward in a swirling motion signal?
Raise the load
Air
hydrometer
Dry expansion type

30. When arranging weld coupons for testing position 6G...
6 5/8'(inch)
Pipe penetration
Axis of pipe should be on a 45 degree
Hydraulics

31. In a typical residential air condittioning system - the evaporator is of the _______________ type - where the liquid refrigerant should be totally vaporized before it reaches the outlet of the evaporator.
Material Safety Data Sheet
Softens it
To allow for thermal movement
dry expansion

32. A single line drawing of a piping system represents the...
bowline on a bight
5 9/16'(inch)
Air
Center of the pipe

33. Name the three methods of transferring heat.
The temperature that the joints are made - the flux and temperatures of the system
Conduction - convection and radiant.
Softener
Protection for loss of water in the boiler.

34. The density of water is...
Condensate pump size
Snubber
62.4
handle will bend

35. Why is it necessary to use flux on a soldered joint?
To chemically prepare the pieces for soldering
The Evaporator
A pry bar
Purge the line when brazing

36. A __________ displacement pump discharges a definite quantity of liquid for each cycle.
Positive
After cutting
Beam clamp
Green

37. A device that mechanically attaches to the side of a flange on a beam is called a...
MAPP - acetylene - and propane
Beam clamp
1 foot
Expansion Device

38. Momentarily closing the starting switch to check the rotation of the pump is known as __________ the pump.
.135 cu ft
Raise the load
Globe
Bumping

39. OD for 8'(inch)

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40. Which of the following is the decimal equivalent of 5/8'(inch)
.625
Beam clamp
DWV
Controller

41. When leaning a ladder against an object - the ladder should be at an approximate angle of __________ degrees.
75 degrees - also 4 to 1
Remove the packing
To protect the threads from rust.
Steam

42. A gallon of water weighs...
Spring hanger
8.33lbs
Neutral
Manometer

43. An increase in pressure will cause the boiling point of water to ________...
A pry bar
Bight - running end and standing part
Increase
The Evaporator

44. What does a condenser do?
foot valve
On high side of the system and turns gas to liquid.
pi * radius squared
6 5/8'(inch)

45. OSHA was enacted to...
The type of coating and current
protect worker safety and health
Equalizing line
Backflow preventer

46. When a soldered joint is overheated...
After cutting
The flux burns and the joint becomes ineffective
.0361
On low side of the system and expands liquid to low pressure gas.

47. Which component in a closed control loop is the primary element?
Climbing the cross braces.
The flux burns and the joint becomes ineffective
MAPP - acetylene - and propane
Sensor

48. When a liquid changes immediately to a vapor it is called...
Pressure rating
14.7 psia
On high side of the system and turns gas to liquid.
Flashing

49. What is the welding position 2 - on the electrode mean?
MAPP - acetylene - and propane
Up and Down
Flat and horizontal positions
Material Safety Data Sheet

50. With a high pressure valve you should never _____ under pressure.
Sensor
Bumping
cool and lubricate the die
Remove the packing