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. What should the outside attendant do to rescue a worker who shows physiological effects of exposure in a confined space?
Sensor
Notify response team and allow them to rescue.
hydrometer
pi * radius squared


2. There are __________ cubic inches in a gallon.
Ball joint - Bellows Joint and Packed Joint
Hydraulics
Insufficient condensate drainage
231


3. OD for 8'(inch)

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4. Guides are used near...
Anchors
Flash Tank
steam and condensate flowing in the same direction
.0361


5. What is the sum of all angles in a triangle?
Positive
Sensor
180
Tagged and removed from service.


6. What does the evaporator do?
Point thumb up
Dry expansion type
On low side of the system and expands liquid to low pressure gas.
Quarter


7. OD for 1'(inch)

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8. A dielectric fitting should be used on...
The flux is in the filler material
Manometer
steel to copper joints
Green


9. A sling is weakest in which position?
Choked position
Condensate pump size
Saturated
Dry expansion type


10. Which one of the following alloys does not require flux when brazing copper to copper joints?
Pneumatics
Latent
BCuP - Stands for Brazed Copper Phosphorus
Large end to smaller end to center(bull)


11. What is the welding position 1 - on the electrode mean?
West of the building
All position
.433psi
Remove any paint or rust.


12. The specific gravity of a liquid can only be measured using the following instrument...
hydrometer
return fitting
an eccentric reducer flat on top
Erratic readings


13. The treatment of liquids in motion is known as...
Hydraulics
Increase the pressure when the temperature increases
The pump creates a differential in pressure that moves the water.
1


14. Steam condensate lines should use...
Its cheaper!
Spiral Wound
ALWAYS
Sch 80 Steel pipe


15. Which of the following methods of access to a scaffold is prohibited?
.433psi
Climbing the cross braces.
Air
The stud bolt is stronger than a machine bolt of the same size and material.


16. In a Hydronic heating system - units at the top of the system not heating are likely to be...
sewage
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
Flooded
Air Bound


17. What is the standard for an electronic signal?
.01745 - 3.1416 - and .7854
4 to 20 milliamps
Air Bound
Hydrostatic


18. Which of the following is the decimal equivalent of 5/8'(inch)
Dry expansion type
.625
Strainer
OD


19. When a pipe size is decreased by half - the carrying capacity of the pipe decreases by...
4 times
To provide movement cause from a change in temperature
Mechanical return is used.
Quarter


20. What is the purpose of the oxygen and acetylene regulators?
Spiral Wound
To reduce the pressure from the cylinders to safe and workable pressures
near the middle of the jaws
100% of the rated capacity


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

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22. A concentric reducer could be used to connect to a horizontal pump _______________ line.
supporter of combustion
The tensile strength of the rod in PSI times 1 -000
Discharge
25 feet


23. A single line drawing of a piping system represents the...
4 1/2'(inch)
.0361
Center of the pipe
.707 x Travel


24. In the cooling cycle - which component throttles the flow of refrigerant?
Coating
Climbing the cross braces.
All the way to the shoulder
Expansion Device


25. Where is a bourdon tube found?
The system temperature - thermal and dynamic movement of the pipe and vibration.
Segmental
the core
In a pressure gauge


26. The amount of heat it takes to raise one pound of water one degree Fahrenheit is known as a...
BUT
Ball joint - Bellows Joint and Packed Joint
The type of coating and current
180


27. A bushing is NOT a good replacement for a reducer because...
Its cheaper!
Sch 40
In the hot water heating pumps discharge piping.
Provide oxygen barrier - stabilize and direct the force of the arc and to gather impurities in the form of slag.


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

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29. Horizontal steam supply piping should be reduced in size by using...
Eccentric reducer (flat on top)
Flux
bowline on a bight
After cutting


30. What is capillary action?
The flow of a liquid into a small space
Flashing
To chemically prepare the pieces for soldering
The tubing has been cleaned for oxygen service


31. Ladders with visible defects - such as broken rungs - cracked side rails - or broken steps must be...
Up and Down
Controller
Tagged and removed from service.
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)


32. Formula for a cubic foot of an unknown substances weight?
West of the building
the employer
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
All the way to the shoulder


33. What is installed after the isolation valve and before the trap union on a standard trap assembly?
Strainer
Point thumb up
return fitting
NEVER!


34. What type of sensor is directly in the process stream?
steel to copper joints
return fitting
Dog Everything
Immersion sensor


35. When should you ream the end of a pipe?
1
After cutting
cool and lubricate the die
Flux


36. Which is the correct formula for the area of a circle?
.7854 x D squared
.707
The same OD as the branch
Raise the load


37. Which rigging configuration has the greatest sling strength?
Absolute
The Evaporator
Basket
.01745 - 3.1416 - and .7854


38. What does the term '(inch)never saddle a dead horse'(inch) mean?
Arrange a wire rope clamp so that the dead end has the U bolts
1
10 feet
Flooded


39. How many 2'(inch) pipes can be supplied from a 6'(inch) header?
an eccentric reducer flat on top
Large volumes of condensate flash back to liquid in the tank so it removes trapped steam from the condensate.
840
9


40. The pipe fitting that makes a 180 degree turn is called a/an?
The Evaporator
return fitting
foot valve
Backflow preventer


41. When lifting objects with sharp edges you should use a...
Softener
galvanized
In the hot water heating pumps discharge piping.
25 feet


42. What does the stamp Oxy-Med stand for on copper tubing?
Pipe penetration
The tubing has been cleaned for oxygen service
(Total Height - Elevation) * .433 = psig
Increase in friction


43. A gallon of water weighs...
Segmental
Flat and horizontal positions
8.33lbs
Capillary action


44. What instrument is best for measuring vacuum?
tangent 1/2 angle x radius
Manometer
Spring hanger
Solder joints


45. What is the purpose of the expansion joint in a steam system?
Anchors
To provide movement cause from a change in temperature
Bight - running end and standing part
Expansion loop.


46. A valve on the suction side of the pump should be...
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)
Roller hangers
Axis of pipe should be on a 45 degree
Before the strainer and fully open.


47. OD for 4'(inch)

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48. What causes water to move in a Hydronic system?
8 5/8'(inch)
Erratic readings
2 3/8'(inch)
The pump creates a differential in pressure that moves the water.


49. What temperature does water boil at sea level?
falls
Choked position
212 degrees F
25 feet


50. The face to center measurement of any welded angle fitting equals...
Increase the pressure when the temperature increases
tangent 1/2 angle x radius
Set up opposite bolts fairly tight - then tighten all bolts equally for inspection purposes.
Discharge