Everyday science mcqs | GK MCQ Preparation Material

1- Most of the ozone in the atmosphere is concentrated in the _____________?

B. Troposphere

Stratosphere

ionosphere

Mesosphere

2- An iceberg is floating in sea. How much of its mass will remain above the surface of water?

One fifth

One third

One tenth

One fourth

3- An astronaut inside a spacecraft is in a state of weightlessness. This implies that?

Gravity inside the spacecraft ceases to act

The astronaut and the spacecraft are both in a free-failing state

The astronaut is outside the influence of the earthâ€™s gravitational force

The mass of the astronaut is reduced to zero

4- The sun appears red at sunrise and sunset while it appears white at noon, because

Of refraction

It is cooler at sunrise and at sunset

Of diffraction leading to red end of the spectrum reaching the earth.

Of Scattering of light due to dust particles and air molecules.

5- A lake starts freezing because of the cold atmosphere. It will first freeze

At the bottom

Uniformly throughout the water body

ln the middle pan

At the top surface

6- The beautiful color patterns exhibited by a peacock in its tail feathers are due to ?

Sinterference of light

Selective absorption of light

selective re ection of light

Natural colour pattern of feathers

7- What is the average adult pulse rate?

115-125

140-150

72-80

8- When a person enters a dark room from bright light he is not able to see clearly for a little while because the?

Retina becomes insensitive momentarily

Distance between the lens and retina take time to adjust

Eye is unable to adjust itself immediately

Iris is unable to dilate the pupil immediately

9- Which part of the Camera is analogue to the retina in the human eye?

Lens

Film

Shutter

Aperture

10- Dolly is the name of the ?

First cloned monkey

First test-tube baby

First human fossil

First cloned sheep

11- The most important stimulant in tea leaves is?

Caffeine

Theine

Brucine

Phenylalanine

12- Dialysis is used for the treatment of__________?

None of these

Brain diseases

Heart weakness

Kidney failure

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