A-07 Intro To Fluid Handling Technology

Question 1

The three general types of flange connections are the screwed, the Van Stone and the _____?

A. Bolted
B. Ring joint
C. Raised face
D. Welded

Answer 1

D. Welded

Question 2

One disadvantage of using threaded connections to join pipes and fittings is that it:

A. Is more costly
B. Weakens the pipe
C. Difficult to insulate
D. Requires the services of a pipe fitter

Answer 2

B. Weakens the pipe

Question 3

The service designation of a pipe fitting indicates ______

A. The location where the valve was manufactured
B. The Canadian registration number for the valve
C. The temperature-pressure rating of the valve
D. The seat and packing material designation

Answer 3

C. The temperature-pressure rating of the valve

Question 4

A bellows corrugated expansion joint is suitable for pressures up to approximately ______ kPa:

A. 500
B. 1000
C. 2000
D. Unlimited

Answer 4

C. 2000

Question 5

Cast iron pipe has a high resistance to:

A. Water pressure
B. Impacts
C. Temperature changes
D. Corrosion

Answer 5

D. Corrosion

Question 6

When admitting steam to a steam piping system it is imperative to:

A. Use the glycol tracing to warm the line
B. First ensure that no water exists or can accumulate in the piping
C. Ensure drain valves are closed to prevent steam loss
D. Add nitrogen to steam to prevent corrosion

Answer 6

B. First ensure that no water exists or can accumulate in the piping

Question 7

Pipe insulation, when installed on pipes that carry cold fluids, prevents

A. The requirements for heat tracing
B. Water hammer at elbows
C. Expansion or contraction
D. Sweating and corrosion

Answer 7

D. Sweating and corrosion

Question 8

In most sizes of pipe, Schedule 40 corresponds to _____ wall thickness

A. Welded only
B. Threaded only
C. Extra strong (xs)
D. Standard

Answer 8

D. Standard

Question 9

In piping systems, the three main types of flange gaskets are the full face, the ring joint, and the:

A. Corrugated bellows type
B. Can stone type
C. Flat ring type
D. Segmental ring type

Answer 9

C. Flat ring type

Question 10

A steam trap should be installed below the _____ point in piping system it serves.

A. Coldest
B. Hottest
C. Highest
D. Lowest

Answer 10

D. Lowest

Question 11

Gaskets are installed between pipe flanges to:

A. Prevent leakage due to imperfections in the flange face
B. Allow pipe expansion between flange joints
C. Account for misalignment of the pipe
D. Provide cushioning against water hammer

Answer 11

A. Prevent leakage due to imperfections in the flange face

Question 12

A slip type expansion joint:

A. Requires no maintenance
B. Is suitable only for low pressures and temperatures
C. Requires lubrication
D. Will adjust for misalignment of lines

Answer 12

C. Requires lubrication

Question 13

Which gasket had an oval cross-section?

A. Flat ring
B. Full face
C. Cut asbestos
D. Ring joint

Answer 13

D. Ring joint

Question 14

The three markings mandatory on valves to be used in pressure piping include manufacturers name, material designation and ______?

A. Weight designation
B. CRN number
C. Valve type
D. Service designation

Answer 14

D. Service designation

Question 15

Which two systems are used to designate nominal pipe size?

A. Si uses NPS and USCS assigns a DN
B. USCS used NPS, and SI assigns a DN
C. Nominal inside diameter and actual outside diameter
D. Schedule numbers and nominal size

Answer 15

B. USCS uses NPS, and SI assigns a DN

Question 16

What kings of damage occur on the valve seat?

A. Scaling and pitting
B. Grinding and chipping
C. Grooving and wire drawing
D. Stretching and shrinking

Answer 16

B. Grooving and wire drawing

Question 17

Two main categories of manufactured steel piping are

A. Seamless and welded
B. Welded or screwed
C. Piping and tubing
D. Pressure and water

Answer 17

A. Seamless and welded

Question 18

What does valve trim consist of?

A. Disc, seat ring, stuffing box
B. Disc, wheel, guide brushings
C. Disc, wheel, gland packing
D. Disc, seat ring, guide bushings

Answer 18

D. Disc, seat ring, guide bushings

Question 19

The material designation marking on a valve _____

A. Indicates which manufacturing branch it originates from
B. Indicates the material that the valves is made from
C. Gives the maximum temperature for the valve material
D. Is associated with the Canadian registration number

Answer 19

B. Indicates the material that the valve is made from

Question 20

To extend the life of valve packing, we can ______

A. Operate the valve at lower temperatures
B. Lubricate the valve stem with oil
C. Operate the valve slowly
D. Operate the valve on a regular basis

Answer 20

B. Lubricate the valve stem with oil