This set of Heat Transfer Multiple Choice Questions & Answers (MCQs) focuses on “Specific Heat”.
1. What is the value of specific heat for brick in J/kg K?
a) 835
b) 735
c) 635
d) 535
View Answer
Explanation: It is a block of ceramic materials. It is built to withstand high temperature, but a low thermal conductivity.
2. Which one is having the highest value of specific heat?
a) Asphalt
b) Bakelite
c) Chrome brick
d) Fire clay
View Answer
Explanation: Specific heat of bakelite is 1465 J/kg K while that of asphalt, chrome brick and fire clay are 920 J/kg K, 835 J/kg K and 960 J/kg K respectively.
3. What is the value of specific heat for asphalt in J/kg K?
a) 920
b) 820
c) 720
d) 620
View Answer
Explanation: Asphalt is a composite material used to surface roads and airports. It is produced by heating the asphalt binder to decrease its viscosity.
4. What is the value of specific heat for Bakelite in J/kg K?
a) 1665
b) 1565
c) 1465
d) 1365
View Answer
Explanation: It is also known as polyoxybenzylmethylenglycolanhysride. It is a thermosetting phenol formaldehyde resin. Bakelite was used for its electrical non conductivity.
5. Which one is having the lowest value of specific heat?
a) Coal
b) Clay
c) Banana
d) Concrete
View Answer
Explanation: Specific heat of concrete is 880 J/kg K while that of coal, banana and clay are1260 J/kg K, 3350 J/kg K and 890 J/kg K respectively.
6. What is the value of specific heat for coal in J/kg K?
a) 1260
b) 1360
c) 1460
d) 1560
View Answer
Explanation: The carbon content of coal is around 60% – 80%. The rest is composed of water, air, hydrogen and Sulphur.
7. What is the value of specific heat for cotton in J/kg K?
a) 1600
b) 1500
c) 1400
d) 1300
View Answer
Explanation: It is also known as polyethylene. These are highly strainly resistant and is used as cushioning and insulating materials in pillows.
8. Which one is having the highest value of specific heat?
a) Sand
b) Berea
c) Magnesite
d) Limestone
View Answer
Explanation: Specific heat of magnesite is 1130 J/kg K while that of sand, barea and limestone are 800 J/kg K, 745 J/kg K and 810 J/kg K respectively.
9. What is the value of specific heat for sand in J/kg K?
a) 800
b) 700
c) 600
d) 500
View Answer
Explanation: There is a weak bonding between the molecules of sand particles due to which it is exposed to high temperature when left free in the atmosphere.
10. Which one is having the lowest value of specific heat?
a) Ice
b) Pyrex
c) Paraffin
d) Rubber
View Answer
Explanation: Specific heat of pyrex is 835 J/kg K while that of ice, paraffin and rubber are 2040 J/kg K, 2890 J/kg K and 2010 J/kg K respectively.
Sanfoundry Global Education & Learning Series – Heat Transfer.
To practice all areas of Heat Transfer, here is complete set of 1000+ Multiple Choice Questions and Answers.
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