GK Questions and Answers on Everyday Science

 GK Questions and Answers on Everyday Science

We come across many things in our day to day life that can be attributed to scientific practices. We should know or recognize that the various things that we use daily or the things that is going on around us is due to scientific technology. The curd that we eat daily is ready overnight when prepared at home have you ever noticed how this happens ? Or the soap that cleans our hand and remove germs , what is in it that do so ? This is nothing but science which we use everyday. These questions will tell you about different types of scientific activities which we use daily and will also be helpful for various exams.

1. Which waves are used by the common TV remote control ?

A. Infrared waves .

2. What are the psychological manifestation of noise pollution ?

A. ● Constriction of blood vessels

●Increase in the rate of heartbeat

●Digestive spasms 

●Dilation of the pupil of the eye 

3. Which gas is safe and an effective extinguisher for all confined fires?

A. Carbondioxide .

4. Which one of the following statements is incorrect about laser?

■ It is a technique for producing intense beams of light, ultraviolet or infrared radiation of different wavelength.

■ Even the diamond laser beam can drill a hole.

■ A variety of lasers have been made from solids like ruby crystal and semi-conducting materials, liquids and gases.

■All waves in laser, travel in phase.

Ans. It is a technique for producing intense beams of light, ultraviolet or infrared radiation of different wavelength.

5. Which elements the drum of a Photostat machine is made up of:

A. Selenium .

6. If we say the child has an IQ of 100, what does this mean?

A. The mental age of the child is equal to his actual age.

7. Which bacteria are responsible for the formation of curd?

A. Lactobacillus Acidophilus .

8. Which one of the following bacteria present in the soil produces a peculiar smell if it rains on parched soil?

A. Streptomycetes .

9. In poorly ventilated buildings which one of the following inert gases can be accumulated?

A. Radon .

10. Honey is sweeter than cane sugar or corn syrup. Which one of the following carbon sugars is responsible for this?

A. Levulose .