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 is the correct formula for the area of a circle?
.707
Fusion
4 to 20 milliamps
.7854 x D squared


2. A neutral reading on the PH scale is...
Set point
Strainer
(Total Height - Elevation) * .433 = psig
7.0


3. What is the welding position 2 - on the electrode mean?
MAPP - acetylene - and propane
Discharge
Flat and horizontal positions
Valve


4. When a flux joint is overheated it will not...
tangent 1/2 angle x radius
Fuse
4 1/2'(inch)
In the hot water heating pumps discharge piping.


5. OD for 8'(inch)

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


6. The best method to ensure that a plastic joint is made properly - you should...
Material Safety Data Sheet
.7854 x D squared
Insert pipe into fitting and turn 1/4 turn and hold
Mechanical return is used.


7. A rating of 150# refers to a flange's...
Remove the packing
Pressure rating
75 degrees - also 4 to 1
On high side of the system and turns gas to liquid.


8. What type of expansion joint utilizes mechanical movement?
Steam
Ball joint - Bellows Joint and Packed Joint
Eccentric reducer (flat on top)
discharge


9. 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.
Alloying
Body belts
Dry expansion type
Discharge


10. An increase in pressure will cause the boiling point of water to ________...
1.5
The flow of a liquid into a small space
Increase
Yellow.. think Dee Double U is yelloWWW


11. In a refrigeration system a condensable gas is...
.7854 x D squared
Ammonia
2 and 1
the core


12. An exit from a trench should be no more than...

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


13. 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.
dry expansion
2.31ft
1
Flat position only


14. What type of copper tubing joint requires use of a ferrule?
All position
compression
set point
Beam clamp


15. Where should the pressure enter a globe valve?
Quarter
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)
return fitting
Depends on the desired action if the disc or plug becomes detatched from the stem. (Fail open or Fail closed)


16. A mixing valve has ___ inlets and ___ outlets.
BUT
Pneumatics
The Evaporator
2 and 1


17. What is Hydronics?
Increase
Body belts
The science of heat transfer using water.
Guide - Anchor - Guide


18. The last two digits on an E-6010 electrode specify
The type of coating and current
lower hook
sewage
Pressure rating


19. Which of the following is NOT acceptable as part of a personal fall arrest system?
Body belts
Hydrostatics
blow the valves for a moment
The impeller


20. What does a + plus sign mean?
Pipe penetration
180
Vaporization
Hazard prevention and control.


21. What is the sum of all angles in a triangle?
DWV
180
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
ALWAYS


22. What should the outside attendant do to rescue a worker who shows physiological effects of exposure in a confined space?
Air Bound
Capillary action
Notify response team and allow them to rescue.
Dog Everything


23. What causes pressure drop?
protect worker safety and health
Hydraulics
The flux is in the filler material
Increase in friction


24. Which of the following is NOT a reason for using cutting oil when threading pipe?
near the middle of the jaws
3 to 15 psi
To protect the threads from rust.
The stud bolt is stronger than a machine bolt of the same size and material.


25. A diamond on an instrumentation loop diagram encloses information concerning...
foot valve
Set point
Eccentric reducers - flat on top
13/16'(inch)


26. When a loop is needed at any point between ends of a rope - the proper knot to tie is the...
galvanized
Strainer
Multiply the length of the hypotenuse of the roll and the set by 1.414
bowline on a bight


27. The specific gravity of a liquid can only be measured using the following instrument...
hydrometer
Up and Down
1
Two Hole


28. What do the first two digits mean in E7018 electrodes?
The tensile strength of the rod in PSI times 1 -000
Climbing the cross braces.
The impeller
take-off must be subtracted from the end-to-center measurement.


29. What is the welding position 3 - on the electrode mean?
Up and Down
Flat position only
return fitting
1728


30. Where should the high pressure condensate be piped to before entering the receiver?
1
the employer
Flash Tank
Flat position only


31. In a piping installation allowing for expansion in two directions - how should the anchor(s) and guide(s) be positioned relative to each other?
Guide - Anchor - Guide
Fusion
To provide movement cause from a change in temperature
piping


32. You should never blow your clothes off with oxygen because oxygen is a/an
When a large volume of condensate is generated
supporter of combustion
no valves permitted
Insert pipe into fitting and turn 1/4 turn and hold


33. What does the G stand for in the 2G - 5G and 6G weld positions?
Groove
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)
.7854 x D squared
bowline on a bight


34. A device that mechanically attaches to the side of a flange on a beam is called a...
Beam clamp
.135 cu ft
Too fast of a travel rate
The system temperature - thermal and dynamic movement of the pipe and vibration.


35. Ladders with visible defects - such as broken rungs - cracked side rails - or broken steps must be...
25 feet
.135 cu ft
Softener
Tagged and removed from service.


36. Why can flux be omitted in a brazed joint?
The flux is in the filler material
Coating
34 feet
Spiral


37. A _______________ reamer should NOT be used with power operated pipe threading equipment
Spiral
15 PSI
Basket
Red.. think M&M is RED


38. What are the main differences between soldering and brazing?
Expansion Device
On high side of the system and turns gas to liquid.
orthographic
The temperature that the joints are made - the flux and temperatures of the system


39. 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


40. Capillary action is used in...
15 PSI
Remove any paint or rust.
Solder joints
Up and Down


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

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


42. Which type of orifice plate is designed to measure flow of liquids containing solids?
In a pressure gauge
Segmental
Hazard prevention and control.
Erratic readings


43. The pipe fitting that makes a 180 degree turn is called a/an?
.075lbs
return fitting
compression
Solder joints


44. What is the purpose of the oxygen and acetylene regulators?
Level the 90 in horizontal position determine inside arc - backside arc and face to center dimensions for 60 degree elbow - mark and cut
Forced convection - because the FAN forces convection!
To reduce the pressure from the cylinders to safe and workable pressures
Notify response team and allow them to rescue.


45. When a pipe size is decreased by half - the carrying capacity of the pipe decreases by...
The same ID as the branch
Quarter
.01745 - 3.1416 - and .7854
8 5/8'(inch)


46. What is capillary action?
8 5/8'(inch)
Neutral
.491lbs
The flow of a liquid into a small space


47. OD for 6'(inch)

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


48. How many 2'(inch) pipes can be supplied from a 6'(inch) header?
1 5/16'(inch)
Prevailing wind speed and direction - environmental concerns - zoning requirements
Ground Fault Circuit Interrupter
9


49. A system which the refrigerant is in the shell and cools the fluid in the tubes is...
Loosen the far bolts first
pi * radius squared
Flooded
840


50. What does a condenser do?
On high side of the system and turns gas to liquid.
The science of heat transfer using water.
Center of the pipe
blow the valves for a moment