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

1 .

Soap and detergents help remove dirt from clothes. It does so because of having two parts

A)

Neutrophilic, Hydrophobic

B)

Hydrophilic, neutrophilic

C)

Both the hydrophobic

D)

Hydrophilic and hydrophobic

Correct Answer : Option (D) - Hydrophilic and hydrophobic

2 .

We observe objects around us due to

A)

Reflection of light

B)

Absorption of light

C)

Refraction of light

D)

All of the above

Correct Answer : Option (A) - Reflection of light

We are able to see objects in front of us due to the light reflected by it. ... So we see the objects because it reflects light and that light enters our eyes. So the answer to the question is option (B)- The light reflected from the object enters our eyes.

3 .

El NINO phenomenon is associated with

A)

Cloud Bursting

B)

Earthquake

C)

Acid Rain

D)

Global Warming

Correct Answer : Option (D) - Global Warming

El Niño is a climate pattern that describes the unusual warming of surface waters in the eastern tropical Pacific Ocean. El Nino is the “warm phase” of a larger phenomenon called the El Nino-Southern Oscillation (ENSO). ... El Niño was recognized by fishers off the coast of Peru as the appearance of unusually warm water.

4 .

Myopia is also known as

A)

Extreme sightedness

B)

Poor sightedness

C)

Nearsightedness

D)

Far sightedness

Correct Answer : Option (C) - Nearsightedness

Nearsightedness (myopia) is a common vision condition in which you can see objects near to you clearly, but objects farther away are blurry.

5 .

Benzene Hexachloride is very effective as

A)

Herbicide

B)

Pesticide

C)

Pain killer

D)

Stimulant

Correct Answer : Option (B) - Pesticide

Lindane, also known as gamma-hexachlorocyclohexane, gammaxene, Gammallin, and benzene hexachloride, is an organochlorine useful as an agricultural insecticide and as a pharmaceutical agent to eliminate lice and scabies (Ahmed et al., 2008).

6 .

The Kelvin scale of temperature for boiling point of water is

A)

456.2 K

B)

373.2 K

C)

270.5 K

D)

100 K

Correct Answer : Option (B) - 373.2 K

The freezing point of water on the Kelvin scale is 273.15 K, while the boiling point is 373.15 K.

7 .

Which of the following metals is mixed with iron to produce stainless steel

A)

Chromium

B)

Titanium

C)

Zinc

D)

Tin

Correct Answer : Option (A) - Chromium

8 .

Henry is the standard unit of

A)

Pressure

B)

Angular Motion

C)

Electrical resistance

D)

Electrical inductance

Correct Answer : Option (D) - Electrical inductance

9 .

Which of the following cannot be beaten into Sheets?

A)

Aluminum

B)

Silver

C)

Potassium

D)

Gold

Correct Answer : Option (C) - Potassium

10 .

Terrestrial life-forms require ____________ water for life processes.

A)

saline

B)

salt

C)

sour

D)

fresh

Correct Answer : Option (D) - fresh