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. Factors in considering the site selection for a new cooling tower.
Prevailing wind speed and direction - environmental concerns - zoning requirements
The type of coating and current
Pipe strain
Fuse

2. Which of the following is the decimal equivalent of 5/8'(inch)
.625
Point at the base and sweep the base with the extinguisher
Hydrostatics
Saturated

3. The maximum practical suction lift on positive displacement pumps is 22 feet and on centrifugal pumps it is __________ feet.
Equalizing line
Remove any paint or rust.
In a pressure gauge
15 Feet

4. Name the three methods of transferring heat.
falls
3.1416
Ground Fault Circuit Interrupter
Conduction - convection and radiant.

5. Which component in a closed control loop is the primary element?
The system temperature - thermal and dynamic movement of the pipe and vibration.
250 degrees
Sensor
1:48 - because 1/4 of an inch is 1/48th of a foot

6. A fan coil uses ______ to distribute heating or cooling to the space.
100% of the rated capacity
Forced convection - because the FAN forces convection!
NEVER!
1:48 - because 1/4 of an inch is 1/48th of a foot

7. What is the formula to figure take off on a 45 degree elbow?

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8. Which one of the following measures and takes action?
Controller
an eccentric reducer flat on top
Green
Globe valve

9. The color code for type '(inch)K'(inch) copper is?
8 5/8'(inch)
Green
Alloying
4 times

10. What is the welding position 3 - on the electrode mean?
ALWAYS
Clean all surfaces
Flat position only
hydrometer

11. An up-feed steam heating system has the heating units...
Neutral
Above the main
West of the building
Expansion loop.

12. The density of 1 cubic inch of Mercury is...
Schedule 10
Remote bulb
Segmental
.491lbs

13. The type of valve permitted downstream of a temperature and pressure relief valve on a water heater is...
In a pressure gauge
The flux is in the filler material
Immersion sensor
no valves permitted

14. The last two digits on an E-6010 electrode specify...
1 5/16'(inch)
the type of coating and current
In the direction of flow
Axis of pipe should be on a 45 degree

15. A __________ displacement pump discharges a definite quantity of liquid for each cycle.
Pressuretrol
8.33 pounds
Ammonia
Positive

16. Steam supply using parallel flow is...
Anchors
10 feet
steam and condensate flowing in the same direction
62.4 pounds

17. Formula for a cubic foot of an unknown substances weight?
Allow moisture to escape
Point thumb up
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
A pry bar

18. You should never blow your clothes off with oxygen because oxygen is a/an
supporter of combustion
Multiply the length of the hypotenuse of the roll and the set by 1.414
Water
Hydraulics

19. When changing pipe sizes in the horizontal supply or return lines of a two-pipe hot water heating system use...
Eccentric reducers - flat on top
Loosen the far bolts first
1728
14.7 psia

20. The proper way to extinguish a fire is to...
Dog Everything
Solder joints
Controller
Point at the base and sweep the base with the extinguisher

21. Which of the following is an essential element necessary to produce an ordinary fire?
Bumping
Fuel - Heat - Oxygen
Strainer
Too fast of a travel rate

22. When leaning a ladder against an object - the ladder should be at an approximate angle of __________ degrees.
62.4 pounds
The pump creates a differential in pressure that moves the water.
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)
75 degrees - also 4 to 1

23. Zinc chills or metal fume fever are caused from welding on __________ steel.
cool and lubricate the die
4 to 20 milliamps
galvanized
steel to copper joints

24. Which of the following is a key element of a comprehensive safety and health program?
Depends on the desired action if the disc or plug becomes detatched from the stem. (Fail open or Fail closed)
Softener
Hazard prevention and control.
set point

25. The function of a steam trap is to prevent the flow of ________________ - while allowing condensate and non-condensable gases to pass through.
Anchors
On low side of the system and expands liquid to low pressure gas.
Steam
Green... think KKelly GREEN

26. The ______ is used to protect the weld puddle from contamination in the SMAW process.
Remove any paint or rust.
Vaporization
3.1416
Flux

27. Calculate head pressure in a section of vertical pipe?
Height * .433 = psig
Softens it
13/16'(inch)
Water

28. OD for 8'(inch)

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29. OD for 1/2'(inch)

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30. Where is a bourdon tube found?
Coating
Eccentric reducer (flat on top)
Magnesium
In a pressure gauge

31. What type of expansion joint utilizes mechanical movement?
Flooded
Ball joint - Bellows Joint and Packed Joint
Argon
.491lbs

32. How far should a copper tube be inserted into a cup for a brazed joint?
15 PSI
Remove any paint or rust.
All the way to the shoulder
62.4 pounds

33. What is capillary action?
Above the main
Flat position only
Waterlogged
The flow of a liquid into a small space

34. Which of the following methods of access to a scaffold is prohibited?
Capillary action
no valves permitted
Climbing the cross braces.
Globe valve

35. One gallon of water weighs?
Act as a safety device to shut off the motor if the operator's foot is removed from the switch.
8.33 pounds
Before the strainer and fully open.
Hydraulics

36. A tag line should be used on a crane lift...
hydrometer
ALWAYS
Condensate pump size
Valve

37. The treatment of liquids at rest is known as...
Hydrostatics
blow the valves for a moment
dry expansion
Protection for loss of water in the boiler.

38. Since _______________ is virtually incompressible - pressure has little effect on its volume.
62.4lbs
orthographic
Prevailing wind speed and direction - environmental concerns - zoning requirements
Water

39. .433 psig is equal to how high of a water column?
62.4
62.4lbs
231
1 foot

40. Which of the following has the largest inside diameter?
Schedule 10
.7854 x D squared
Depends on the desired action if the disc or plug becomes detatched from the stem. (Fail open or Fail closed)
Blue... think b-LLLLue

41. A sling is weakest in which position?
West of the building
62.4
Condensate pump size
Choked position

42. What is the function of the covering on the electrodes during the process of '(inch)Shielded Metal Arc Welding'(inch)?
Large end to smaller end to center(bull)
true isometric
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.

43. A vent is not needed on a condensate receiver when...
an eccentric reducer flat on top
Quarter
Mechanical return is used.
Erratic readings

44. The last two digits on an E-6010 electrode specify
true isometric
Capillary action
Increase
The type of coating and current

45. When a cranes signaler's hand is pointed up with his finger moving in a circle it means to...
Raise the load
OD
Remove the packing
protect worker safety and health

46. What does GFCI stand for?
Ground Fault Circuit Interrupter
Insert pipe into fitting and turn 1/4 turn and hold
Flat and horizontal positions
Softens it

47. A _______________ reamer should NOT be used with power operated pipe threading equipment
Hydrostatics
In the hot water heating pumps discharge piping.
Spiral
3 to 15 psi

48. How many 2'(inch) pipes can be supplied from a 6'(inch) header?
Ball joint - Bellows Joint and Packed Joint
9
2 3/8'(inch)
Pressure Rating

49. The specific weight of mercury is...
.0361
Flooded
Crimson... think aCRimson
galvanized

50. The density of water is...
piping
Raise the load
62.4
Flashing