Question 1

He develop an amplifier for telephone conversation.

Accepted Answer

Robert von Lieben

Answer

Thomas Edison

Answer

Alexander Fleming

Answer

Lee de Forest

Question 2

Machine was developed during Industrial Age.

Accepted Answer

true

Answer

false

Question 3

Match $\bold{A}$ to Column $\bold{B}$.

Question 4

We live in this period.

Accepted Answer

New Age

Answer

Stone Age

Answer

Iron Age

Answer

Industrial Age

Question 5

They lived near the rivers and other bodies of water.

Accepted Answer

Mesolithic Period

Answer

Paleolitihc Period

Answer

Neolithic Period

Question 6

Which of these is/are characteristics of Stone Age?

Accepted Answer

They cooked their prey

Answer

They invent different machines

Answer

They discovered bronze, tin and alloy

Question 7

The ___________ was seen as more precious as gold.

Accepted Answer

metal

Question 8

During Bronze Age, they invented ______________.

Accepted Answer

Potter's Wheel

Question 9

He invented the light bulb

Accepted Answer

Thomas Edison

Question 10

He brought lamps to the market.

Accepted Answer

William Sawyer

Answer

Lee de Forest

Answer

Robert von Lieben

Answer

Thomas Edison

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