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

1 .

Which of the following is not greenhouse gas

A)

Methane

B)

Hydrogen

C)

Chlorofluro carbon

D)

Carbon Dioxide

Correct Answer : Hydrogen

2 .

An example for an artificial sweetener

A)

Sucrose

B)

Fructose

C)

Cyclamate

D)

Polyphenols

Correct Answer : Sucrose

This sweetener is about 600 times sweeter than table sugar but contains very few calories. Sucralose (Sucrose) is one of the most popular artificial sweeteners, and it is widely available. Manufacturers add it to a range of products from chewing gum to baked goods.

3 .

Which of the following is not considered as a part of the Abiotic Environment?

A)

Air

B)

Soil

C)

Water

D)

Plants

Correct Answer : Plants

4 .

A difference between 2 longitudes at equator is nearby equivalent to _____ km

A)

104

B)

111

C)

125

D)

142

Correct Answer : 111

5 .

Musa paradisiaca is the scientific name of which plant?

A)

mango

B)

Corn

C)

banana

D)

wheat

Correct Answer : banana

6 .

What does BOD5 refer to?

A)

Biochemical Oxygen Demand in 5 hours

B)

Biochemical Oxygen Demand in 5 minutes

C)

Biochemical Oxygen Demand in 5 Months

D)

Biochemical Oxygen Demand in 5 days

Correct Answer : Biochemical Oxygen Demand in 5 days

7 .

When does solar eclipse take place?

A)

When the moon is between the sun and earth

B)

When the moon does not lie on the line joining the sun and earth

C)

When the sun is between the moon and earth

D)

When the earth is between the moon and sun

Correct Answer : When the moon is between the sun and earth

8 .

Which of the following metals is stored in kerosene oil?

A)

Platinum

B)

Copper

C)

Sodium

D)

Gold

Correct Answer : Sodium

Sodium is stored in kerosene as it is a highly reactive metal.

9 .

The boundary between Earth's crust and mantle is _____

A)

Conrad discontinuity

B)

Moho discontinuity

C)

Gutenberg discontinuity

D)

Lehman discontinuity

Correct Answer : Moho discontinuity

10 .

The longest day of the year in the Northern Hemisphere occur on

A)

21st November

B)

21st July

C)

21st August

D)

21st June

Correct Answer : 21st June

On June 21, the Northern Hemisphere receives the longest period of daylight. At the summer solstice, the sun travels the longest path through the sky.