NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1670 - 1676 of 2028

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Question 1670

Question

MCQ▾

If we applied grease or oil on door hinges, then the friction on hinges will:

Choices

Choice (4)Response

a.

Decrease

b.

Becomes zero

c.

Increase

d.

Remains same

Question 1671

Question

MCQ▾

A image is same size as object and virtual, then it is formed by:

Choices

Choice (4)Response

a.

Curved mirror

b.

Rough mirror

c.

Plane mirror

d.

None of the above

Question 1672

Question

MCQ▾

The voltage of common dry cell is:

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1673

Question

MCQ▾

Which of the following is used to read and write by blind persons?

Choices

Choice (4)Response

a.

Standard letter pattern

b.

Braille code

c.

Block cipher

d.

Question does not provide sufficient data or is vague

Question 1674

Question

MCQ▾

If and are the friction forces of surface A and surface B, then which of the following statement is true?

Smooth and Rough Surfaces

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1675

Question

MCQ▾

A solid cylinder is having mass . To displace this cylinder which of the following activities is easier to perform?

Choices

Choice (4)Response

a.

Lifting the cylinder and move

b.

Rolling a cylinder

c.

Dragging the cylinder

d.

All of the above

Question 1676

Question

MCQ▾

The direction friction force is:

Choices

Choice (4)Response

a.

Parallel to the relative motion

b.

Opposite to the relative motion

c.

Perpendicular to the relative motion

d.

None of the above

Developed by: