Book 1 Chapter 16: Piping, Expansion, Support & Insulation Flashcards
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
B) Middle of the line
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
A) Four
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
C) Low insulating value
What is the temperature limit of refractory fibre insulation?
A) 1000ºC (1832ºF)
B) 1200ºC (2192ºF)
C) 2250ºC (4082ºF)
D) 1650ºC (3000ºF)
D) 1650ºC (3000ºF)
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
D) Sweating
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
C) Maintains constant force on the pipe
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
C) 1,2,3,4
The ASME requirement for piping is:
A) B31.1
B) B52.4
C) B21.8
D) B13.2
E) B51.6
A) B31.1
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
D) Require less space
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
B) Roller hanger and strap hanger
The two types of expansion joints are the ________ and the slip expansion joint.
A) Bolted
B) Stationary
C) Rotating
D) Bellows
E) Fixed
D) Bellows
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
B) 1,2,3,4,5
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
B) Prevent heat transfer
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
D) 1,2,4
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
E) Allow for axial pipe expansion
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
B) Foamed plastic
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
C) Allow for expansion and contraction of the piping
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
E) A high thermal conductivity (k) value
The slip expansion joint requires ______ than the expansion bend.
A) Higher temperature
B) Higher pressures
C) Lower temperature
D) Less space
E) More space
D) Less space
The service temperature limit of Glass Fibre insulation is:
A) 320ºC (608ºF)
B) 454ºC (850ºF)
C) 104ºC (219ºF)
D) 1038ºC (1900ºF)
E) 650ºC (1200ºF)
B) 454ºC (850ºF)
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
D) Corrosive
The service temperature limit of refractory fibre insulation is:
A) 1650ºC (3000ºF)
B) 1038ºC (1900ºF)
C) 1000ºC (1832ºF)
D) 2250ºC (4082ºF)
E) 1200ºC (2192ºF)
A) 1650ºC (3000ºF)
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
C) Middle of the line
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
B) Temperature
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
D) Coiled helical spring
The service temperature limit of Calcium Silicate insulation is:
A) 454ºC (850ºF)
B) 1038ºC (1900ºF)
C) 320ºC (608ºF)
D) 104ºC (219ºF)
E) 650ºC (1200ºF)
E) 650ºC (1200ºF)
The service temperature of Reflective Metal Insulation is above:
A) 1650ºC (3000ºF)
B) 2250ºC (4082ºF)
C) 1000ºC (1832ºF)
D) 1200ºC (2192ºF)
E) 1040ºC (1904ºF)
E) 1040ºC (1904ºF)
The service temperature limit of Elastomeric insulation is:
A) 650ºC (1200ºF)
B) 1038ºC (1900ºF)
C) 104ºC (219ºF)
D) 454ºC (850ºF)
E) 320ºC (608ºF)
C) 104ºC (219ºF)
