Science and Technology - General Knowledge Questions

1 .

Haustoria or sucking roots are found in which of the following?

Mango

Chestnut

Wheat

Cuscuta

Correct Answer : Cuscuta

2 .

Which instrument is used for measuring the altitude, direction and velocity of clouds

Nephelumeter

Pyrgeometer

Nephoscope

Venturimeter

Correct Answer : Nephoscope

3 .

Soap removes grease by

Osmosis

Emulsification

Adsorption

Coagulation

Correct Answer : Emulsification

4 .

Nylon was first invented by

Wallace Carothers

C. Goodyear

E. G. Rochow

L. Pauling

Correct Answer : Wallace Carothers

5 .

Which of the following instruments is used for checking proper functioning of heart

C.T. Scan

Glucometer

E.C.G

Sonography

Correct Answer : E.C.G

6 .

What is the source of electric energy in an artificial satellite

A thermopile

A dynamo

A mini nuclear reactor

Solar cells

Correct Answer : Solar cells

7 .

Which of the following types of waves are used in a night vision equipment

Infrared wave

Micro wave

Radio wave

None of the above

Correct Answer : Infrared wave

8 .

Which one of the following is an artificial ecosystem

Forest

Crop field

Lake

Pond

Correct Answer : Crop field

9 .

A cellulose fibre is

Wool

Cotton

Polyester

Rayon

Correct Answer : Rayon

10 .

The first scientist to see the cell under a microscope was

T. Schwann

M. Schleiden

Robert Hooke

None of the above

Correct Answer : Robert Hooke

Robert Hooke FRS was an English scientist, architect, and polymath, who, using a microscope, was the first to visualize a micro-organism. An impoverished scientific inquirer in young adulthood, he found wealth and esteem by performing over half of the architectural surveys after London's great fire of 1666.