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Plumbing Certification

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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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. To assemble a 4 bolt flange...
an eccentric reducer flat on top
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
Up and Down
Pressure rating

2. Formula for a cubic foot of an unknown substances weight?
Immersion sensor
Clean all surfaces
212 degrees F
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

3. What does GFCI stand for?
Height * .433 = psig
cool and lubricate the die
Ground Fault Circuit Interrupter
Prevailing wind speed and direction - environmental concerns - zoning requirements

4. What temperature does water boil at sea level?
Softener
Positive
212 degrees F
compression

5. Which of the following methods of access to a scaffold is prohibited?
Climbing the cross braces.
To chemically prepare the pieces for soldering
25' from any worker
Pressure Rating

6. The color code for type L copper is...
falls
The temperature that the joints are made - the flux and temperatures of the system
Blue... think b-LLLLue
To protect the threads from rust.

7. The anode rod used in a hot water heater to protect it from corrosion is made of...
Point thumb up
Magnesium
Conduction - convection and radiant.
Discharge

8. The treatment of liquids at rest is known as...
Sch 80 Steel pipe
Hydrostatics
The Evaporator
Allow moisture to escape

9. A system which the refrigerant is in the shell and cools the fluid in the tubes is...
Sch 40
Fuel - Heat - Oxygen
Hydraulics
Flooded

10. Ladders with visible defects - such as broken rungs - cracked side rails - or broken steps must be...
The science of heat transfer using water.
The flux is in the filler material
Tagged and removed from service.
To protect the threads from rust.

11. What type of sensor is directly in the process stream?
Immersion sensor
None
Two Hole
Alloying

12. When leaning a ladder against an object - the ladder should be at an approximate angle of __________ degrees.
212 degrees F
The type of coating and current
75 degrees - also 4 to 1
sewage

13. Condensate lines should be pitched...
In the direction of flow
Material Safety Data Sheet
Water
Flat position only

14. The maximum practical suction lift on positive displacement pumps is 22 feet and on centrifugal pumps it is __________ feet.
NEVER!
Spiral Wound
return fitting
15 Feet

15. Calculate head pressure of a vertical pipe at specific elevations.
(Total Height - Elevation) * .433 = psig
Controller
When a large volume of condensate is generated
To reduce the pressure from the cylinders to safe and workable pressures

16. In a refrigeration system a condensable gas is...
Ammonia
Never
62.4 pounds
pi * radius squared

17. What causes pressure drop?
Act as a safety device to shut off the motor if the operator's foot is removed from the switch.
Increase in friction
Notify response team and allow them to rescue.
Erratic readings

18. What is capillary action?
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.
Beam clamp
The flow of a liquid into a small space
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.

19. When is it safe to remove the old packing from a valve that is under pressure?
62.4 pounds
When a large volume of condensate is generated
After cutting
NEVER!

20. A concentric reducer could be used to connect to a horizontal pump _______________ line.
Cavitation
Discharge
Waterlogged
Not to scale - does not show locations of equipment. It shows pipe size and flow.

21. The purpose of the foot switch on a power-operated pipe cutting and threading machine is to?

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22. OD for 2'(inch)

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23. The main cause of undercutting is...
1/2 BTU
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)
Too fast of a travel rate
1 foot

24. Which of the following is sometimes used as a shielding gas in the GTAW process?
15 Feet
the core
Argon
Ball joint - Bellows Joint and Packed Joint

25. Which component in a closed control loop is the primary element?
Sensor
no valves permitted
To chemically prepare the pieces for soldering
Clove hitch with a half hitch

26. Which of the elements of a wire rope aid in absorbing '(inch)Shock Loads'(inch)?
Crimson... think aCRimson
take-off must be subtracted from the end-to-center measurement.
bowline on a bight
the core

27. A guard rail system must withstand a minimum force of __________ pounds.
200 lbs
840
Hydraulics
The same OD as the branch

28. To stop all crane movement the ______ signal should be used.
None
Groove
Strainer
Dog Everything

29. The ______ is used to protect the weld puddle from contamination in the SMAW process.
Flux
Tagged and removed from service.
On high side of the system and turns gas to liquid.
set point

30. OD for 1/2'(inch)

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31. One gallon of water occupies how many cubic feet?
protect worker safety and health
Roller hangers
.135 cu ft
Blue... think b-LLLLue

32. Steam in contact with the water it has been generated from is known as ________________ steam.
Forced convection - because the FAN forces convection!
Sch 40
Saturated
Set point

33. Guides are used near...
Water
All the way to the shoulder
BUT
Anchors

34. Momentarily closing the starting switch to check the rotation of the pump is known as __________ the pump.
Bumping
Two Hole
pi * radius squared
212 degrees F

35. If you double pipe size the carrying capacity is increased...
Snubber
DWV
4 times
OD

36. Which type of orifice plate is designed to measure flow of liquids containing solids?
Choked position
Segmental
The temperature that the joints are made - the flux and temperatures of the system
Manometer

37. What does the term '(inch)never saddle a dead horse'(inch) mean?
212 degrees F
To allow for thermal movement
Arrange a wire rope clamp so that the dead end has the U bolts
Notify response team and allow them to rescue.

38. When a cranes signaler's hand is pointed up with his finger moving in a circle it means to...
.707 x Travel
Raise the load
foot valve
Argon

39. When brazing for medical gas or refrigeration always...
Purge the line when brazing
25' from any worker
.075lbs
3 to 15 psi

40. What does a condenser do?
On high side of the system and turns gas to liquid.
Quarter
Erratic readings
Forced convection - because the FAN forces convection!

41. 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...
Flash Tank
Valve
15 PSI
Capillary action

42. The color code for type M copper is...
Hydraulics
After cutting
Red.. think M&M is RED
Air

43. Zinc chills or metal fume fever are caused from welding on __________ steel.
Primer
Immersion sensor
Ground Fault Circuit Interrupter
galvanized

44. A bushing is NOT a good replacement for a reducer because...
Its cheaper!
Increase the pressure when the temperature increases
Green
Multiply the length of the hypotenuse of the roll and the set by 1.414

45. Which of the following is a key element of a comprehensive safety and health program?
Hazard prevention and control.
supporter of combustion
After cutting
6 5/8'(inch)

46. A vertical line in an isometric drawing represents...
Hazard prevention and control.
A pry bar
In the direction of flow
Up and Down

47. An up-feed steam heating system has the heating units...
.707 x Travel
Fuse
Latent
Above the main

48. A gallon of water weighs...
Waterlogged
62.4lbs
8.33lbs
Clove hitch with a half hitch

49. What is the purpose for a weep hole in a saddle pad?
Softens it
34 feet
Expansion = Constant per 100ft multiplied by (Final Temp- Starting Temp) Example: 380' steel pipe (.0305 constant) is heated from 62 degrees to 171 degrees - how much did the pipe expand? Formula: .0305 * 3.8 (171-62) = 3 5/16'(inch)
Allow moisture to escape

50. The amount of heat it takes to raise one pound of water one degree Fahrenheit is known as a...
After cutting
5 9/16'(inch)
BUT
Mechanical/Thermostatic

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Plumbing Certification

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