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. A diamond on an instrumentation loop diagram encloses information concerning...
BUT
Set point
To provide movement cause from a change in temperature
Softener

2. A cooling tower must have a ________ or be open-site.
To chemically prepare the pieces for soldering
the type of coating and current
6 5/8'(inch)
Backflow preventer

3. How much does 1 cubic foot of air weigh?
Softens it
.075lbs
To provide movement cause from a change in temperature
Spiral Wound

4. All of the following are process control elements EXCEPT...
MAPP - acetylene - and propane
piping
Pipe strain
true isometric

5. The color code for type K copper is...
Spring hanger
Green... think KKelly GREEN
Softener
In the direction of flow

6. To raise the boom of a crane you would...
Point thumb up
Too fast of a travel rate
Sch 40
Solder joints

7. OD for 3'(inch)

8. Which one of the following measures and takes action?
.135 cu ft
Controller
Point at the base and sweep the base with the extinguisher
When a large volume of condensate is generated

9. A Hartford loop is used for...
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
Globe valve
Protection for loss of water in the boiler.
Expansion loop.

10. The last two digits on an E-6010 electrode specify...
Spiral
the type of coating and current
Water
13/16'(inch)

11. The color code for DWV copper is...
Yellow.. think Dee Double U is yelloWWW
zinc
10 feet
30 Degrees

12. The specific weight of mercury is...
.0361
25' from any worker
ALWAYS
Hazard prevention and control.

13. What does GFCI stand for?
In a pressure gauge
Softens it
Basket
Ground Fault Circuit Interrupter

14. What should be done first when preparing a copper joint?
All the way to the shoulder
Clean all surfaces
Act as a safety device to shut off the motor if the operator's foot is removed from the switch.
180

15. What type of hanger uses a spring that splits the rod?
The pump creates a differential in pressure that moves the water.
Spring hanger
Magnesium
Two Hole

16. An increase in pressure will cause the boiling point of water to ________...
The flow of a liquid into a small space
Globe
Increase
Equalizing line

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.
Softener
hydrometer
BUT
Dry expansion type

18. When a liquid changes immediately to a vapor it is called...
Pressuretrol
Hydraulics
Absolute
Flashing

19. Which of the elements of a wire rope aid in absorbing '(inch)Shock Loads'(inch)?
the core
Red.. think M&M is RED
250 degrees
Softener

20. Annealing copper...
Flat position only
Alloying
Softens it
On low side of the system and expands liquid to low pressure gas.

21. What do the first two digits mean in E7018 electrodes?
Expansion Device
Point thumb up
The tensile strength of the rod in PSI times 1 -000
36'(inch)

22. If you double pipe size the carrying capacity is increased...
4 times
Bumping
All position
When a large volume of condensate is generated

23. What type of copper is recommended for refrigeration?
Type K
Spiral
1728
4 times

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

25. To determine the travel for a 45 degree rolling offset you would...
All position
Multiply the length of the hypotenuse of the roll and the set by 1.414
To provide movement cause from a change in temperature
Up and Down

26. OD for 1'(inch)

27. When loosening the bolts on a flange one should...
Loosen the far bolts first
The science of heat transfer using water.
Equalizing line
Absolute

28. .433 psig is equal to how high of a water column?
14'(inch)
the core
1 foot
lower hook

29. What is installed after the isolation valve and before the trap union on a standard trap assembly?
Strainer
3.1416
200 lbs
Conduction - convection and radiant.

30. Where should the pressure enter a globe valve?
1/2 BTU
Two Hole
Too fast of a travel rate
Depends on the desired action if the disc or plug becomes detatched from the stem. (Fail open or Fail closed)

31. The proper way to extinguish a fire is to...
Point at the base and sweep the base with the extinguisher
Climbing the cross braces.
no valves permitted
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.

32. To properly align a flange you must perform what is commonly called a ______ hole...
return fitting
DWV
On low side of the system and expands liquid to low pressure gas.
Two Hole

33. What size hole should be cut into a main to saddle IN a smaller pipe?
Spiral Wound
7.0
Center of the pipe
The same OD as the branch

34. A gallon of water weighs...
8.33lbs
Raise the load
Green
The pump creates a differential in pressure that moves the water.

35. The last two digits on an E-6010 electrode specify
Red.. think M&M is RED
Notify response team and allow them to rescue.
The type of coating and current
Axis of pipe should be on a 45 degree

36. Which type of orifice plate is designed to measure flow of liquids containing solids?
Green
Water
Segmental
2nd gear divided by primary gear. Example: A machine has a primary pulley of 6'(inch) and a secondary pulley of 24'(inch). Formula is 24/6=4 - so the ratio is 4 to 1

37. When a loop is needed at any point between ends of a rope - the proper knot to tie is the...
62.4 pounds
bowline on a bight
Blue... think b-LLLLue
Ammonia

38. What causes water to move in a Hydronic system?
15 Feet
Ground Fault Circuit Interrupter
The pump creates a differential in pressure that moves the water.
Protection for loss of water in the boiler.

39. What type of sensor is directly in the process stream?
Immersion sensor
Bumping
Axis of pipe should be on a 45 degree
30 Degrees

40. Oil is used on a pipe machine to...
Pipe strain
cool and lubricate the die
Large end to smaller end to center(bull)
Anchors

41. Steam condensate lines should use...
Saturated
Mechanical return is used.
Sch 80 Steel pipe
The pump creates a differential in pressure that moves the water.

42. What is the function of the covering on the electrodes during the process of '(inch)Shielded Metal Arc Welding'(inch)?
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.
Pressure Rating
The same OD as the branch
BCuP - Stands for Brazed Copper Phosphorus

43. Which one of the following alloys does not require flux when brazing copper to copper joints?
The impeller
soft tempered
Softens it
BCuP - Stands for Brazed Copper Phosphorus

44. A concentric reducer could be used to connect to a horizontal pump _______________ line.
discharge
Cavitation
pi * radius squared
To chemically prepare the pieces for soldering

45. The type of drawing that most closely resembles an object as the eye would see it is referred to as a/an __________ drawing.
Thermostatic - Thermodynamic and Mechanical
Clove hitch with a half hitch
true isometric
Ground Fault Circuit Interrupter

46. In the cooling cycle - which component throttles the flow of refrigerant?
840
8 5/8'(inch)
Expansion Device
Expansion loop.

47. Condensate lines should be pitched...
9
5 9/16'(inch)
Guide - Anchor - Guide
In the direction of flow

48. What is the expansion and compression of water vapor in a pump?
bowline on a bight
DWV
The tensile strength of the rod in PSI times 1 -000
Cavitation

49. The sum of atmospheric and gauge pressure is known as __________ pressure.
the employer
3 1/2'(inch)
Absolute
2nd gear divided by primary gear. Example: A machine has a primary pulley of 6'(inch) and a secondary pulley of 24'(inch). Formula is 24/6=4 - so the ratio is 4 to 1

50. The final step in the galvanizing of pipe is to dip the pipe into a bath of molten _________?
zinc
Axis of pipe should be on a 45 degree
1/2 BTU
the core