Heat-Transfer of Heat (CBSE Class-7 Science): Questions 1 - 6 of 6

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Question number: 1

» Heat » Transfer of Heat » Conduction

MCQ▾

Question

Applications of conduction are:

Choices

Choice (4) Response

a.

Cooking utensils

AND

Woollen clothes

b.

Refrigerators

c.

Double layer blankets

d.

All a. , b. and c. are correct

Question number: 2

» Heat » Transfer of Heat » Convection

MCQ▾

Question

Convection is:

Choices

Choice (4) Response

a.

Mode of transfer of heat in a fluid

b.

In convection the molecules themselves carry heat from hotter region to a colder region

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

Question number: 3

» Heat » Transfer of Heat » Conduction

MCQ▾

Question

Transfer of heat in solid objects generally takes place through:

Choices

Choice (4) Response

a.

Convection

b.

Radiation

c.

Conduction

d.

All of the above

Question number: 4

» Heat » Transfer of Heat » Radiation

MCQ▾

Question

The transfer of heat in absence of a medium is called as:

Choices

Choice (4) Response

a.

Conduction

b.

Radiations

c.

Convection

d.

All of the above

Question number: 5

» Heat » Transfer of Heat » Convection

MCQ▾

Question

On which principle sea breeze and land breeze are formed:

Choices

Choice (4) Response

a.

Convection

b.

Radiations

c.

Conduction

d.

None of the above

Question number: 6

» Heat » Transfer of Heat » Convection

MCQ▾

Question

Houses in older times had very high roofs with ventilators provided high up based on the principle of:

Choices

Choice (4) Response

a.

Convection

b.

Conduction

c.

Radiations

d.

All of the above

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