Class 7 Online Courses

Chapter 12: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 12

Heat Transfer Quiz Questions and Answers PDF - 15

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Heat Transfer Questions & Answers PDF Download: MCQ Quiz 15

MCQ 71: The loss of heat in winter is a major waste of

A) fuel
B) electricity
C) power
D) energy

MCQ 72: Low 'infrared waves'

A) cannot pass through glass
B) can pass through glass
C) cannot pass through walls
D) can pass through walls

MCQ 73: Electric companies use thermal imaging camera to identify

A) the resistivity of a wire
B) the resistivity of a resistor
C) overheating of wires and power lines
D) the heat released by electrical appliance

MCQ 74: At night, the convection current of land and sea

A) remains same
B) stops
C) is reversed
D) is converted to radiation current

MCQ 75: When heating element from cooker is turned out, at first it emits

A) heat energy
B) gamma rays
C) infrared waves
D) radio waves

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Heat Transfer App (Android & iOS)

Heat Transfer App (Android & iOS)

7th Grade Science App (Android & iOS)

7th Grade Science App (Android & iOS)

Earth Science App (Android & iOS)

Earth Science App (Android & iOS)

8th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)