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. Which of the following methods of access to a scaffold is prohibited?
Snubber
Center of the pipe
Climbing the cross braces.
BUT

2. The sum of atmospheric and gauge pressure is known as __________ pressure.
tangent 1/2 angle x radius
Absolute
Point at the base and sweep the base with the extinguisher
Hydrostatic

3. What should be done to prepare a flange for the gasket installation?
Immersion sensor
Remove any paint or rust.
The flux burns and the joint becomes ineffective
Green... think KKelly GREEN

4. What should the outside attendant do to rescue a worker who shows physiological effects of exposure in a confined space?
Spiral
Notify response team and allow them to rescue.
take-off must be subtracted from the end-to-center measurement.
Pipe strain

5. OSHA was enacted to...
cool and lubricate the die
.075lbs
protect worker safety and health
Solder joints

6. What is the best valve for throttling?
compression
Globe
Insert pipe into fitting and turn 1/4 turn and hold
.707

7. Where should the high pressure condensate be piped to before entering the receiver?
Flash Tank
Strainer
3 1/2'(inch)
Steam

8. To fabricate a 60 degree elbow from a 90 you would...
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut
1728
Air
Insert pipe into fitting and turn 1/4 turn and hold

9. One cubic foot of water weighs?
Neutral
Pneumatics
14'(inch)
62.4 pounds

10. In one cubic foot there are _________ cubic inches.
The flux burns and the joint becomes ineffective
falls
1728
Up and Down

11. To figure the end-to-end measurement of a piece of pipe when the end-to-end center measurement is known the...
the core
Ground Fault Circuit Interrupter
1
take-off must be subtracted from the end-to-center measurement.

12. The last two digits on an E-6010 electrode specify...
bowline on a bight
Spiral Wound
the type of coating and current
Bight - running end and standing part

13. What are 3 fuel gases used for heating pipe or tubing?
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
Above the main
Hydraulics
MAPP - acetylene - and propane

14. A device that mechanically attaches to the side of a flange on a beam is called a...
In the hot water heating pumps discharge piping.
Axis of pipe should be on a 45 degree
Beam clamp
Manometer

15. A fan coil uses ______ to distribute heating or cooling to the space.
soft tempered
The pump creates a differential in pressure that moves the water.
Forced convection - because the FAN forces convection!
36'(inch)

16. Which of the elements of a wire rope aid in absorbing '(inch)Shock Loads'(inch)?
the core
Crimson... think aCRimson
Remote bulb
Before the strainer and fully open.

17. In the cooling cycle - which component throttles the flow of refrigerant?
Expansion Device
(Total Height - Elevation) * .433 = psig
2 3/8'(inch)
Increase the pressure when the temperature increases

18. Which of the following has the largest inside diameter?
Clean all surfaces
The stud bolt is stronger than a machine bolt of the same size and material.
5 9/16'(inch)
Schedule 10

19. A diamond on an instrumentation loop diagram encloses information concerning...
Spring hanger
Set point
radius squared times PI
hydrometer

20. How many 2'(inch) pipes can be supplied from a 6'(inch) header?
Alloying
9
true isometric
1

21. The main cause of undercutting is...
set point
Ground Fault Circuit Interrupter
take-off must be subtracted from the end-to-center measurement.
Too fast of a travel rate

22. When gripping a pipe with a pipe wrench - the wrench should be adjusted so the pipe is...
Flashing
near the middle of the jaws
West of the building
Point at the base and sweep the base with the extinguisher

23. A tag line should be used on a crane lift...
Primer
1 foot
ALWAYS
Hydrostatics

24. Which one of the following measures and takes action?
Controller
62.4 pounds
Globe valve
Insufficient condensate drainage

25. What is capillary action?
The flow of a liquid into a small space
Multiply the length of the hypotenuse of the roll and the set by 1.414
Solder joints
The system temperature - thermal and dynamic movement of the pipe and vibration.

26. In a piping installation allowing for expansion in two directions - how should the anchor(s) and guide(s) be positioned relative to each other?
piping
1
On low side of the system and expands liquid to low pressure gas.
Guide - Anchor - Guide

27. Theoretically - a pump can raise water by suction approximately __________ feet vertically.
4 times
With the weld at a 45 degree angle
34 feet
Bight - running end and standing part

28. A concentric reducer could be used to connect to a horizontal pump _______________ line.
Discharge
4 to 20 milliamps
Point thumb up
To reduce the pressure from the cylinders to safe and workable pressures

29. What do the first two digits mean in E7018 electrodes?
Softener
Clean all surfaces
The tensile strength of the rod in PSI times 1 -000
protect worker safety and health

30. Steam condensate lines should be installed on...
1
6 5/8'(inch)
Roller hangers
Down Stream

31. What are the three types of steam traps?
Thermostatic - Thermodynamic and Mechanical
Sensor
8.33 pounds
1

32. 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.
Set point
dry expansion
Groove
The system temperature - thermal and dynamic movement of the pipe and vibration.

33. When brazing for medical gas or refrigeration always...
Purge the line when brazing
Softener
9
Sch 80 Steel pipe

34. OD for 1/2'(inch)

35. What is used to soften PVC and remove the gloss?
Raise the load
Magnesium
Increase in friction
Primer

36. What type of Copper tubing is not identified by color on the tubing itself?
The science of heat transfer using water.
soft tempered
falls
Flashing

37. Where is a bourdon tube found?
In a pressure gauge
1 5/16'(inch)
Pipe strain
Clean all surfaces

38. When a pipe size is decreased by half - the carrying capacity of the pipe decreases by...
Neutral
Quarter
The impeller
Too fast of a travel rate

39. What are the three rope parts used in tying knots and hitches?
galvanized
Mechanical return is used.
10 feet
Bight - running end and standing part

40. Condensate lines should be pitched...
62.4 pounds
With the weld at a 45 degree angle
In the direction of flow
Softener

41. The density of water is...
To allow for thermal movement
62.4
In the hot water heating pumps discharge piping.
Its cheaper!

42. What are the main differences between soldering and brazing?
Beam clamp
Steam
The temperature that the joints are made - the flux and temperatures of the system
Hydraulics

43. A simple example of a lever is...
true isometric
14'(inch)
A pry bar
Capillary action

44. The most that a crane should be loaded is...
1
With the weld at a 45 degree angle
Prevailing wind speed and direction - environmental concerns - zoning requirements
100% of the rated capacity

45. What is the minimum safe clearance between cranes and energized power lines operating at 50kV or below?
10 feet
Body belts
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut
discharge

46. OD for 8'(inch)

47. When a loop is needed at any point between ends of a rope - the proper knot to tie is the...
bowline on a bight
34 feet
pi * radius squared
Flux

48. What size hole should be cut into a main to saddle ON a smaller pipe?
Pressure rating
The same ID as the branch
ALWAYS
4 1/2'(inch)

49. What is the maximum pressure for an acetylene hose?
Point at the base and sweep the base with the extinguisher
discharge
Yellow.. think Dee Double U is yelloWWW
15 PSI

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