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

1 .

Azadirachta indica is the scientific name of

A)

Mango Tree

B)

Neem Tree

C)

Papaya Tree

D)

Pipal tree

Correct Answer : Option (B) - Neem Tree

Neem tree is mainly cultivated in the Indian subcontinent. Neem is a member of the mahogany family, Meliaceae. Today it is known by the botanical name Azadirachta indica.

2 .

Who called "Protoplasm" as the "Physical basis of life"

A)

Darwin

B)

Lamarck

C)

Huxley

D)

Oparin

Correct Answer : Option (C) - Huxley

Thomas Huxley (1869) later referred to it as the "physical basis of life" and considered that the property of life resulted from the distribution of molecules within this substance.

3 .

The device which does not have frequency dependent properties of its own is known as

A)

Resistor

B)

Capacitor

C)

Inductor

D)

All of the above

Correct Answer : Option (A) - Resistor

4 .

Human Beings belong to which category of the ecosystem?

A)

Zooplankton

B)

Herbivores

C)

Carnivores

D)

Omnivores

Correct Answer : Option (D) - Omnivores

5 .

A hard coal containing little volatile matter is called

A)

Loess

B)

Anthracite

C)

Lava

D)

Atoll

Correct Answer : Option (B) - Anthracite

6 .

Epigraphy is the study of which of the following?

A)

Inscriptions

B)

Temples

C)

Birds

D)

Coins

Correct Answer : Option (A) - Inscriptions

Epigraphy (Ancient Greek: á¼πιγραφÎ®, "inscription") is the study of inscriptions, or epigraphs, as writing; it is the science of identifying graphemes, clarifying their meanings, classifying their uses according to dates and cultural contexts, and drawing conclusions about the writing and the writers.

7 .

Major portion of the earth's crust is mainly constituted by

A)

Silicon and Iron

B)

Silicon and Aluminium

C)

Oxygen and Silicon

D)

Oxygen and Iron

Correct Answer : Option (C) - Oxygen and Silicon

Silicon 28%, aluminum 8.2%, iron 5.6%, calcium 4.2%, sodium 2.5%, magnesium 2.4%, potassium, 2.0%, and titanium 0.61% also comprise the crust. Given the abundance of oxygen and silicon, the silicates are the most abundant minerals in the earth's crust.

8 .

A wide inlet of the sea usually concave in shape, is termed as a:

A)

Fjord

B)

Bay

C)

strait

D)

Sound

Correct Answer : Option (B) - Bay

9 .

Which of these resources cannot be renewed?

A)

Coal

B)

Natural gas

C)

Petroleum

D)

All of the above

Correct Answer : Option (D) - All of the above

Non-renewable resources are those natural resources that are available in limited quantity. These resources cannot be renewed or replenished in short duration.

Examples are : Natural gas, Petroleum, Coal,...

10 .

Which acid is released when an Ant bites?

A)

Hydrochloric Acid

B)

Formic Acid

C)

Phosphoric Acid

D)

Acetic Acid

Correct Answer : Option (B) - Formic Acid