Latest Science and Technology General Knowledge(GK) Questions and answers

1 .

A temperature of 60â°C is equal to

A)

120â°F

B)

130â°F

C)

140â°F

D)

150â°F

Correct Answer : Option (C) - 140â°F

2 .

Genes are made-up of

A)

B)

C)

D)

Nucleic acids

Correct Answer : Option (D) - Nucleic acids

3 .

The unit used to measure the supersonic speed is

A)

Hertz

B)

Richter

C)

Mach

D)

Knots

Correct Answer : Option (C) - Mach

Supersonic speeds are described by their "Mach number", broadly defined as the ratio of the speed of the aeroplane to the speed of sound in air of the same temperature and density.

4 .

The Binomial nomenclature was introduced by

A)

Carl Linnaeus

B)

Charles Darwin

C)

Georges Cuvier

D)

Aristotle

Correct Answer : Option (A) - Carl Linnaeus

Linnaeus established the practice of binomial nomenclature—that is, the denomination of each kind of plant by two words, the genus name and the specific name, as Rosa canina, the dog rose.

5 .

The maintenance functions of living organisms are performed by the

A)

physical processes

B)

life processes

C)

chemical processes

D)

None of the above

Correct Answer : Option (B) - life processes

6 .

In MICR, what does 'I' stands for?

A)

Instruction

B)

Interactive

C)

Information

D)

Ink

Correct Answer : Option (D) - Ink

MICR is widely used in banking, where people have to work with a large number of checks. ... While OCR is Optical Character recognition, MICR stands for Magnetic Ink Character Recognition.

7 .

Which of the following trees shed their leaves once in a year?

A)

Coniferous trees

B)

Deciduous trees

C)

Evergreen trees

D)

Both deciduous and coniferous trees

Correct Answer : Option (B) - Deciduous trees

8 .

Evidence suggests that life on Earth has existed for about

A)

3.5 million years

B)

35 million years

C)

3.5 billion years

D)

35 billion years

Correct Answer : Option (C) - 3.5 billion years

Evidence suggests that life on Earth has existed for about 3.5 billion years. The earliest known fossils on Earth date from 3.5 billion years ago and there is evidence that biological activity took place even earlier - just at the end of the period of late heavy bombardment.

9 .

Triton is the moon of which planet?

A)

Neptune

B)

Venus

C)

Uranus

D)

Saturn

Correct Answer : Option (A) - Neptune

10 .

Which colour is formed when Blue and Green are mixed?

A)

Brown

B)

Cyan

C)

Black

D)

Violet

Correct Answer : Option (B) - Cyan