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. When should a person designated as an attendant attempt to rescue a worker that is trapped?
Never
Pressure rating
Prevailing wind speed and direction - environmental concerns - zoning requirements
180

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

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

3. What are the three types of steam traps?
Thermostatic - Thermodynamic and Mechanical
62.4 pounds
Ground Fault Circuit Interrupter
Bumping

4. A __________ displacement pump discharges a definite quantity of liquid for each cycle.
Choked position
Eccentric reducers - flat on top
Positive
Primer

5. Since _______________ is virtually incompressible - pressure has little effect on its volume.
Water
5ft - the 4 to 1 rule - every 4 feet high the base must move 1 foot back.
Tagged and removed from service.
Latent

6. What are the three rope parts used in tying knots and hitches?
Increase the pressure when the temperature increases
the type of coating and current
Bight - running end and standing part
Two Hole

7. The pipe size of a pipe changes from the ID to the OD on what pipe size?

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

8. The centerline of piping in a horizontal plane on an isometric drawing is most generally drawn at __________ degrees from the horizontal.
.707
30 Degrees
.433psi
Pressure rating

9. The smallest nominal size DWV copper tube is...

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

10. Steam condensate lines should use...
Pipe penetration
Valve
Insert pipe into fitting and turn 1/4 turn and hold
Sch 80 Steel pipe

11. Guides are used near...
Hydrostatics
Height * .433 = psig
Anchors
supporter of combustion

12. An oil separator is required on systems using...
Argon
4 to 20 milliamps
Ammonia
Backflow preventer

13. OD for 3'(inch)

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

14. What occurs in a flash tank?
BUT
Dog Everything
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
NEVER!

15. What is not a requirement to size the steam trap on a heating unit?
Anchors
Eccentric reducers - flat on top
no valves permitted
Condensate pump size

16. An ejector pump is typically used to pump __________.
sewage
bowline on a bight
14.7 psia
pi * radius squared

17. What are 3 fuel gases used for heating pipe or tubing?
Conduction - convection and radiant.
Hydraulics
The science of heat transfer using water.
MAPP - acetylene - and propane

18. The final step in the galvanizing of pipe is to dip the pipe into a bath of molten _________?
4 to 20 milliamps
In a pressure gauge
zinc
Hydrostatic

19. What has the largest effect on pump alignment?
Pipe strain
Ground Fault Circuit Interrupter
To provide movement cause from a change in temperature
2.31ft

20. One cubic foot of water weighs?
200 lbs
Climbing the cross braces.
62.4 pounds
Remote bulb

21. Oil is used on a pipe machine to...
cool and lubricate the die
Spring hanger
Alloying
Continuously

22. What does the crane signal with the index finger pointed forward in a swirling motion signal?
1/2 BTU
Raise the load
200 lbs
an eccentric reducer flat on top

23. Zinc chills or metal fume fever are caused from welding on __________ steel.
To reduce the pressure from the cylinders to safe and workable pressures
Quarter
galvanized
Body belts

24. To figure the end-to-end measurement of a piece of pipe when the end-to-end center measurement is known the...
take-off must be subtracted from the end-to-center measurement.
Allow moisture to escape
After cutting
Condensate pump size

25. A tag line should be used on a crane lift...
return fitting
The science of heat transfer using water.
ALWAYS
Multiply the length of the hypotenuse of the roll and the set by 1.414

26. What is the formula to figure the area of a circle?
BUT
Capillary action
radius squared times PI
Expansion Device

27. Steam supply using parallel flow is...
100% of the rated capacity
4 times
14'(inch)
steam and condensate flowing in the same direction

28. Which rigging configuration has the greatest sling strength?
Basket
Pneumatics
Before the strainer and fully open.
Fuse

29. An up-feed steam heating system has the heating units...
Mechanical return is used.
Above the main
Waterlogged
Absolute

30. A device that mechanically attaches to the side of a flange on a beam is called a...
Globe valve
Flux
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
Beam clamp

31. What is typically a final control element?
Mechanical return is used.
Valve
7.48
The type of coating and current

32. A mixing valve has ___ inlets and ___ outlets.
Globe valve
2 and 1
Mechanical return is used.
Magnesium

33. When a flux joint is overheated it will not...
Expansion Device
Fuse
Continuously
Bumping

34. Theoretically - a pump can raise water by suction approximately __________ feet vertically.
Ammonia
no valves permitted
34 feet
Loosen the far bolts first

35. A gallon of water weighs...
Saturated
8.33lbs
radius squared times PI
protect worker safety and health

36. What is the main reason for the taper on a pipe thread?
62.4lbs
Ball joint - Bellows Joint and Packed Joint
Insure progressively tighter fit
Purge the line when brazing

37. When should you ream the end of a pipe?
Height * .433 = psig
Solder joints
Dry expansion type
After cutting

38. Which of the following types of clamps are used to dampen a pipe's movement?
Loosen the far bolts first
Snubber
Primer
Latent

39. What type of expansion joint utilizes mechanical movement?
Ball joint - Bellows Joint and Packed Joint
5 9/16'(inch)
Saturated
Mechanical/Thermostatic

40. Soldered joints should never be used on systems above...
true isometric
250 degrees
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)
Softener

41. Condensate lines should be pitched...
Pipe strain
Backflow preventer
(Total Height - Elevation) * .433 = psig
In the direction of flow

42. Before attaching regulators to an oxygen cylinder...
The impeller
blow the valves for a moment
Yellow.. think Dee Double U is yelloWWW
set point

43. A cooling tower must have a ________ or be open-site.
Neutral
Backflow preventer
14'(inch)
sewage

44. The specific weight of mercury is...
8.33lbs
true isometric
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
.0361

45. Which of the following is the decimal equivalent of 5/8'(inch)
Raise the load
.625
Green... think KKelly GREEN
Remove any paint or rust.

46. What is the weakest part of a chain hoist?
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
Air Bound
lower hook
.625

47. To fabricate a 60 degree elbow from a 90 you would...
Flashing
1 foot
Anchors
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut

48. What causes water hammer?
Not to scale - does not show locations of equipment. It shows pipe size and flow.
Type K
Insufficient condensate drainage
On low side of the system and expands liquid to low pressure gas.

49. The leading cause of on-the-job deaths in the construction industry is _______________.
Point at the base and sweep the base with the extinguisher
To provide movement cause from a change in temperature
falls
All the way to the shoulder

50. A concentric reducer could be used to connect to a horizontal pump _______________ line.
Discharge
Choked position
Above the main
In the hot water heating pumps discharge piping.