Chapter 16 Piping Expansion, Support & Insulation

Question 1

1.The service temperature limit of Glass Fibre insulation is:

A. 1038°C (1900°F)

B. 650°C (1200°F)

C. 454°C (850°F)

D. 104°C (219°F)

E. 320°C (608°F)

Answer 1

C. 454°C (850°F)

Question 2

2. One of the methods in common use for providing expansion in pipelines is by using:

A. Long radius elbows

B. Expansion bends

C. Loose couplings

D. Long pipe runs

E. Short pipe runs

Answer 2

B. Expansion bends

Question 3

3. Which of the following is not a characteristic of materials suitable for use as insulation?

A. Long life

B. Vermin proof

C. High insulating value

D. Ability to retain its shape and insulating value when wet

E. Corrosive

Answer 3

E. Corrosive

Question 4

4. The constant support hanger makes use of a _____ to maintain a constant supporting force on the pipe.

A. Hydraulic piston

B. Coiled helical spring

C. Pneumatic piston

D. Cable sling

E. Steel rod

Answer 4

B. Coiled helical spring

Question 5

5. The slip expansion joint is suitable for:

A. Low and medium pressures

B. Medium and high pressures

C. Low and medium temperatures

D. Medium and high temperatures

E. Low and high pressures

Answer 5

A. Low and medium pressures

Question 6

6. The service temperature limit of Calcium Silicate insulation is:

A. 454°C (850°F)

B. 650°C (1200°F)

C. 1038°C (1900°F)

D. 104°C (219°F)

E. 320°C (608°F)

Answer 6

B. 650°C (1200°F)

Question 7

7. The service temperature limit of Mineral Fibre (Rock and Slag Wool) insulation is:

A. 104°C (219°F)

B. 650°C (1200°F)

C. 454°C (850°F)

D. 1038°C (1900°F)

E. 320°C (608°F)

Answer 7

D. 1038°C (1900°F)

Question 8

8. The service temperature limit of Elastomeric insulation is:

A. 1038°C (1900°F)

B. 650°C (1200°F)

C. 454°C (850°F)

D. 320°C (608°F)

E. 104°C (219°F)

Answer 8

E. 104°C (219°F)

NOTE: temperature limit of Elastomeric insulation is:

Question 9

9. The service temperature limit of Foamed Plastic insulation is:

A. 150°C (302°F)

B. 650°C (1200°F)

C. 454°C (850°F)

D. 320°C (608°F)

E. 104°C (219°F)

Answer 9

A. 150°C (302°F)

Question 10

10. The slip expansion joint requires _____ than the expansion bend.

A. More space

B. Lower temperatures

C. Higher temperatures

D. Less space

E. Higher pressures

Answer 10

D. Less space

Question 11

11. The service temperature limit of refractory fiber insulation is:

A. 1000°C (1832°F)

B. 1650°C (3000°F)

C. 2250°C (4082°F)

D. 1200°C (2192°F)

E. 1038°C (1900°F)

Answer 11

A. 1000°C (1832°F)

Question 12

12. The coefficient of thermal conductivity (k) of a material is a measure of the amount of heat that will be _____ the material.

A. Transmitted through

B. Radiated from

C. Absorbed into

D. Generated by

E. Reflected by

Answer 12

A. Transmitted through

Question 13

13. The service temperature of Reflective Metal Insulation is above:

A. 1000°C (1832°F)

B. 1650°C (3000°F)

C. 2250°C (4082°F)

D. 1200°C (2192°F)

E. 1040°C (1904°F)

Answer 13

E. 1040°C (1904°F)

Question 14

14. The service temperature limit of Magnesia (85%) pipe insulation is:

A. 1038°C (1900°F)

B. 650°C (1200°F)

C. 454°C (850°F)

D. 320°C (608°F)

E. 104°C (219°F)

Answer 14

D. 320°C (608°F)

Question 15

15. Piping must be supported:

A. To allow its weight to be carried by the equipment to which it is attached

B. To allow the pipe to sag freely

C. To prevent free movement of the pipe due to expansion or contraction

D. And does not have to carry the weight of the pipe, valves, fittings, and insulation

E. To carry the weight of the fluid contained within the pipe

Answer 15

E. To carry the weight of the fluid contained within the pipe

Question 16

16. Vertical adjustment of a roller stand may be obtained by means of _____ adjustment bolts which raise or lower the roller upon which the pipe rests.

A. Four

B. Five

C. Three

D. Two

E. One

Answer 16

A. Four