NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1617 - 1623 of 2028

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Question 1617

Question

MCQ▾

Blood is consisting of:

Choices

Choice (4)Response

a.

Platelets

b.

RBC (red blood cells)

c.

Plasma

d.

All a., b. and c. are correct

Question 1618

Question

MCQ▾

The speed of sound in a medium varies with:

Choices

Choice (4)Response

a.

Temperature

b.

Humidity

c.

Density

d.

All a., b. and c. are correct

Question 1619

Question

MCQ▾

The velocity of the sound on moon is:

Choices

Choice (4)Response

a.

0

b.

c.

d.

Question 1620

Question

MCQ▾

A cylindrical container filled with water as shown in figure. are closed holes of equal diameter at different height of the container. If we open these holes, through which hole, water covers a maximum horizontal distance?

A Container with Holes

Choices

Choice (4)Response

a.

S

b.

P

c.

R

d.

Q

Question 1621

Question

MCQ▾

The atmospheric pressure is measured by:

Choices

Choice (4)Response

a.

Thermometer

b.

Anemometer

c.

Barometer

d.

All of the above

Question 1622

Question

MCQ▾

Friction force is decreased by:

Choices

Choice (4)Response

a.

Using oil on the surface of contact

b.

Making surface smooth

c.

Decrease the weight of body

d.

All a., b. and c. are correct

Question 1623

Question

MCQ▾

If the height of the water surface above the bottom of given vessels is same, then in which of the following vessel, the pressure of the water on the bottom of vessel is greatest?

Four Vessels Containing Water

Choices

Choice (4)Response

a.

Vessel – 2

b.

Same pressure at bottom for all vessels.

c.

Vessel – 3

d.

Vessel – 4

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