Heat,Temperature and Pressure MCQ with Answers

Heat,Temperature and Pressure MCQ with Answers

26) Calculate the amount of heat required to raise the temperature of 85.5 gm of sand from 20 Degree C to 35 Degree C specific heat of sand = 0.1.

Answer is:

128.25 Joules

27) What is the specific heat of the material if we require 510 calories to raise the temperature of 170 gm of material from 50 Degree C to 80 Degree C?

Answer is:

0.1

28) How much quantity of heat is required to raise the temperature of 300 grams of copper (sp.heat 0.092 cal/gram) from 25 Degree C to 75 Degree C in Kcal?

Answer is:

1.38 Kcal

29) How much heat is absorbed by a copper ingot weighing 400 Kg is heated from 40 Degree C to 72 Degree C for the purpose of forging? (sp.heat of copper is 0.09)

Answer is:

1152 Kcal

30) What is called for the materials that restricts heat flow by radiation, conduction and convection?

Answer is:

Insulators

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