Meno

125 Questions | By Meno281 | Updated: Mar 21, 2022 | Attempts: 1865

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1.

A run of a screw pipe is being installed in the field. What should be done before inserting a threaded pipe in a fitting ?
- A.
  
  Cut threads deeper
- B.
  
  Apply anti-seize
- C.
  
  Apply a thin coat of oil
- D.
  
  Apply pipe dope
2.

Why are regular orfice flanges installed in a pipe ?
- A.
  
  To reduce the pressure on the control valve
- B.
  
  To provide taps for instrumentation
- C.
  
  To increase the flow of product through a section of pipe
- D.
  
  To provide quick installation for a gate and globe valves
3.

During hydro testing , gate valves within a piping system are normally ?
- A.
  
  Opened half way
- B.
  
  Used to control the amount of pressure on the pipe
- C.
  
  Used to ensure the water pressure is within specification tolerance
- D.
  
  Blocked open
4.

For personal protection , insulation install on pipes that are hotter than 110% F must be at least ?
- A.
  
  7 ft
- B.
  
  6 ft
- C.
  
  5 ft
- D.
  
  4 ft
5.

A pre-hydro testing checklist will contain all of the following requirements EXEPT ?
- A.
  
  All valves and blinds are installed properly
- B.
  
  Piping system matches ISOs orthographics and P&IDs
- C.
  
  There is air vent at the high point in the system
- D.
  
  All welds are insulated an jacketed
6.

On a horizontal run, what type of support is attached vertically from above the pipe ?
- A.
  
  Slide
- B.
  
  Hanger
- C.
  
  Structural
- D.
  
  Base
7.

What should be worn when cutting with an oxy-acetylene rig ?
- A.
  
  Low-top shoes
- B.
  
  Short-sleeved shirt
- C.
  
  Cotton clothing
- D.
  
  Three. Cuffed trousers
8.

The standard identification color for piping used in fire protection, Materials and equipment is:
- A.
  
  Blue
- B.
  
  Green
- C.
  
  Yellow
- D.
  
  Red
9.

If the centerline elevation of a 4-inch diameter schedule 40 pipe is 11 feet 7 inches, what is the bottom pipe elevation?
- A.
  
  11 feet 4 1/2 inches.
- B.
  
  11 feet 4 3/4 inches.
- C.
  
  11 feet 6 1/4 inches.
- D.
  
  11 feet 6 3/4 inches.
10.

In an excavation 6' deep in type C soil, what is the angle required for sloping the banks?
- A.
  
  1/2 to 1 foot
- B.
  
  3/4 to 1 foot
- C.
  
  1 to 1 foot
- D.
  
  1 1/2 to 1 foot
11.

What is the circumference of a 6-inch schedule 80 carbon steel pipe?
- A.
  
  12 inches
- B.
  
  20 9/16 inches
- C.
  
  20 13/16 inches
- D.
  
  21 inches
12.

What is the takeoff for a 6" x 4" LR reducing 90-degree ell?
- A.
  
  4 inches
- B.
  
  6 inches
- C.
  
  9 inches
- D.
  
  10 inches
13.

The needle valve is used to
- A.
  
  Start and stop flow
- B.
  
  Regulate flow
- C.
  
  Relieve pressure
- D.
  
  Regulate the direction of flow
14.

A 3-foot 6-inch elevation change is to be made on a 6-inch pipe using 90-degree long radius ells. What is the pipe cut lenght?
- A.
  
  1 foot
- B.
  
  1 foot 11 3/4 inches
- C.
  
  2 feet
- D.
  
  2 feet 11 3/4 inches
15.

Which of the following is the decimal equivalent of 3/4 inch?
- A.
  
  0.25
- B.
  
  0.34
- C.
  
  0.75
- D.
  
  1.41
16.

When bolting up a pair of 6-inch flanges that will NOT line up, what tool should be used to assist in lining up the flanges?
- A.
  
  Two hole pins.
- B.
  
  Drift pin.
- C.
  
  Pry bar.
- D.
  
  Hi-lo gauge.
17.

What is the most common flare angle for flared fittings?
- A.
  
  22 1/2
- B.
  
  37
- C.
  
  45
- D.
  
  56 1/2
18.

A speader bar with two slings attached is to be used to lift a 2,000-pound concrete beam. The beam will place a 1 ton load on each leg of the sling if the lift angle from horizontal is
- A.
  
  90 degrees.
- B.
  
  60 degrees.
- C.
  
  45 degrees.
- D.
  
  30 degrees.
19.

What is used to open flanges for the installation of a test blind?
- A.
  
  Hammer and wedge
- B.
  
  C-clamp
- C.
  
  Flange spreader
- D.
  
  Pry bar
20.

What type of drawing shows the height, width, and depth of a pipeline?
- A.
  
  Isometric
- B.
  
  P&ID
- C.
  
  Plan
- D.
  
  Section
21.

A strainer installed in a system is used to catch
- A.
  
  Water
- B.
  
  Oil
- C.
  
  Antifreeze
- D.
  
  Debris
22.

All of the following piping can be joined by grooved couplings EXCEPT:
- A.
  
  Carbon steel
- B.
  
  Fiber glass
- C.
  
  Stainless steel
- D.
  
  Ductile iron
23.

The angle globe valve is used to:
- A.
  
  Start and stop flow.
- B.
  
  Regulate flow.
- C.
  
  Relieve pressure.
- D.
  
  Regulate the direction of flow
24.

A piping and instrumentation drawing would show which of the following?
- A.
  
  Direction of flow
- B.
  
  Bill of material
- C.
  
  Elevation
- D.
  
  Plan view
25.

When finding the lenght of any side of a right triangle, the Pythagorean theorem states that:
- A.
  
  A^2/b^2 = c^2
- B.
  
  A^2xb^2 = c^2
- C.
  
  A^2-b^2 = c^2
- D.
  
  A^2+b^2 = c^2