Book 1 Chapter 16: Piping, Expansion, Support & Insulation

Question 1

If only one expansion joint is used in the pipeline, it should be placed in the:
A) End of the line
B) Middle of the line
C) Beginning of the line
D) Line adjacent to the isolation valve

Answer 1

B) Middle of the line

Question 2

Vertical adjustment of a roller stand may be obtained by means of ______ adjustment bolts that raise or lower the roller upon which the pipe rests.
A) Four
B) Five
C) Three
D) Two

Answer 2

A) Four

Question 3

Which of the following is not a characteristic of materials suitable for use as insulation?
A) Long life
B) Vermin proof
C) Low insulating value
D) Ability to retain its shape and insulating value when wet

Answer 3

C) Low insulating value

Question 4

What is the temperature limit of refractory fibre insulation?
A) 1000ºC (1832ºF)
B) 1200ºC (2192ºF)
C) 2250ºC (4082ºF)
D) 1650ºC (3000ºF)

Answer 4

D) 1650ºC (3000ºF)

Question 5

Insulating pipes that carry substances lower than the ambient air temperature, will prevent _______ on the pipe and consequently dripping and corrosion.
A) Expansion
B) Discoloration
C) Water hammering
D) Sweating
E) Evaporation

Answer 5

D) Sweating

Question 6

The constant support type of hanger:
A) Controls the horizontal movement of the pipe
B) Restricts the axial movement of the pipe
C) Maintains constant force on the pipe
D) Keeps the pipe pitched properly
E) Maintains a level pipe position

Answer 6

C) Maintains constant force on the pipe

Question 7

What are the desirable characteristics of an insulating material used to insulate piping?
1. High insulating value and long life
2. Vermin proof and easy to apply
3. Non corrosive and safe in terms of toxicity and carcinogenic properties
4. Able to retain its shape and insulating value when wet

A) 1,2,3
B) 1,2,4
C) 1,2,3,4
D) 2,3,4
E) 1,3,4

Answer 7

C) 1,2,3,4

Question 8

The ASME requirement for piping is:
A) B31.1
B) B52.4
C) B21.8
D) B13.2
E) B51.6

Answer 8

A) B31.1

Question 9

The main advantage of corrugated expansion joints is that they:
A) Rarely develop leaks
B) Require less maintenance
C) Can be used up to 5000kPa
D) Require less space
E) Also act as a pipe support

Answer 9

D) Require less space

Question 10

Two types of adjustable overhead pipe hangers are:
A) Roller stand and constant support
B) Roller hanger and strap hanger
C) Roller hanger and roller stand
D) Strap hanger and anchor chair
E) Anchor chair and strap

Answer 10

B) Roller hanger and strap hanger

Question 11

The two types of expansion joints are the ________ and the slip expansion joint.
A) Bolted
B) Stationary
C) Rotating
D) Bellows
E) Fixed

Answer 11

D) Bellows

Question 12

A slip type expansion joint:
1. Allows more movement than a bellows type
2. Is actually a pipe within a pipe
3. Can have packing added in service
4. Has a lubrication fitting
5. Requires less space than the expansion bend

A) 1,2,3,4
B) 1,2,3,4,5
C) 1,2,5
D) 2,3,5
E) 1,3,4,5

Answer 12

B) 1,2,3,4,5

Question 13

The main purpose of installing insulation on pipe systems is to:
A) Prevent injury to personnel due to contact with the bare surfaces of the pipe
B) Prevent heat transfer
C) Provide a paint surface
D) Prevent condensate from evaporating in the lines
E) Give the pipe a neater appearance

Answer 13

B) Prevent heat transfer

Question 14

The pipe hanger system must be designed to carry the weight of the:
1. Pipe and insulation
2. Valves and fittings
3. A person climbing on it
4. Fluid contained within the pipe

A) 1,4
B) 1,2,3,4
C) 1,2,3
D) 1,2,4
E) 2,3,4

Answer 14

D) 1,2,4

Question 15

Correctly installed pipe hangers help to align the pipe, ensure a proper drainage slope, and:
A) Are attached to the floor
B) Require constant lubrication
C) Keep the pipe out of the way of foot traffic
D) Are not adjustable
E) Allow for axial pipe expansion

Answer 15

E) Allow for axial pipe expansion

Question 16

Which of the following insulating materials is best suited for low temperature applications?
A) Magnesia
B) Foamed plastic
C) Glass fibre
D) Insulating cement
E) Refractory fibre

Answer 16

B) Foamed plastic

Question 17

Expansion bends or joints are implemented in piping systems to:
A) Reduce pipe costs
B) Allow for correct pipe drainage
C) Allow for expansion and contraction of the piping
D) Give allowance for pressure increases
E) Protect against water hammer damage

Answer 17

C) Allow for expansion and contraction of the piping

Question 18

Which of the following is not a desirable characteristic for piping insulation?
A) Vermin proof
B) Easy to apply
C) Safe to use
D) High insulating value
E) A high thermal conductivity (k) value

Answer 18

E) A high thermal conductivity (k) value

Question 19

The slip expansion joint requires ______ than the expansion bend.
A) Higher temperature
B) Higher pressures
C) Lower temperature
D) Less space
E) More space

Answer 19

D) Less space

Question 20

The service temperature limit of Glass Fibre insulation is:
A) 320ºC (608ºF)
B) 454ºC (850ºF)
C) 104ºC (219ºF)
D) 1038ºC (1900ºF)
E) 650ºC (1200ºF)

Answer 20

B) 454ºC (850ºF)

Question 21

Which of the following is not a characteristic of materials suitable for use as insulation?
A) Ability to retain its shape and insulating value when wet
B) High insulating value
C) Vermin proof
D) Corrosive
E) Long life

Answer 21

D) Corrosive

Question 22

The service temperature limit of refractory fibre insulation is:
A) 1650ºC (3000ºF)
B) 1038ºC (1900ºF)
C) 1000ºC (1832ºF)
D) 2250ºC (4082ºF)
E) 1200ºC (2192ºF)

Answer 22

A) 1650ºC (3000ºF)

Question 23

If only one expansion joint is used in the pipeline, it should be placed in the:
A) Line adjacent to the isolation valve
B) Perpendicular to the line
C) Middle of the line
D) End of the line
E) Beginning of the line

Answer 23

C) Middle of the line

Question 24

Allowance for expansion and contraction of piping is necessary because of the ________ changes the piping material is subjected to.
A) Pressure
B) Temperature
C) Mass
D) Density
E) Content

Answer 24

B) Temperature

Question 25

The constant support hanger makes use of a ______ to maintain a constant supporting force on the pipe.
A) Steel rod
B) Cable sling
C) Hydraulic piston
D) Coiled helical spring
E) Pneumatic piston

Answer 25

D) Coiled helical spring

Question 26

The service temperature limit of Calcium Silicate insulation is:
A) 454ºC (850ºF)
B) 1038ºC (1900ºF)
C) 320ºC (608ºF)
D) 104ºC (219ºF)
E) 650ºC (1200ºF)

Answer 26

E) 650ºC (1200ºF)

Question 27

The service temperature of Reflective Metal Insulation is above:
A) 1650ºC (3000ºF)
B) 2250ºC (4082ºF)
C) 1000ºC (1832ºF)
D) 1200ºC (2192ºF)
E) 1040ºC (1904ºF)

Answer 27

E) 1040ºC (1904ºF)

Question 28

The service temperature limit of Elastomeric insulation is:
A) 650ºC (1200ºF)
B) 1038ºC (1900ºF)
C) 104ºC (219ºF)
D) 454ºC (850ºF)
E) 320ºC (608ºF)

Answer 28

C) 104ºC (219ºF)