Which of the following has the least carbon percentage?

Low carbon steels are those in which carbon percentage is around

A

0.1 to 0.35

B

0.4 to 0.7

C

0.8 to 1.5

D

1.5 to 2

The percentage of carbon in low carbon steel is

A

0.05%

B

0.15%

C

0.3%

D

0.5%

Carbon percentage in medium carbon steel is around

A

0.1 to 0.35

B

0.35 to 0.5

C

0.8 to 1.4

D

1 to 1. 5

High carbon steel carries carbon percentage

A

0.1 to 0.3%

B

0.3 to 0.6%

C

0.6 to 0.8%

D

0.8 to 1.5%

Which of the following contains the least percentage of carbon ?

A

Pig iron

B

Wrought iron

C

Cast iron

D

Malleable iron

Which one contains the least percentage of carbon?

A

Wrought iron

B

High speed steel

C

Cast iron

D

Pig iron

The carbon percentage is least in

A

low carbon steel

B

wrought iron

C

cast iron

D

malleable iron

Every atom of Carbon-di-oxide contains - Oxygen and - Carbon.

A

1, 2

B

2, 1

C

1, 1

D

2, 2

Plants are efficient at acquiring carbon than are fungi , in the form of carbon dioxide, and converting it to sugars.

A

at

B

on

C

more

D

energy

Choose the correct option to replace the quotation part of each sentence. 'Plants are more efficient at acquiring carbon than are fungi', in the form of carbon dioxide, and converting it to energy-rich sugars.

A

Plants are more efficient at acquiring carbon than are fungo

B

Plants are more efficient at acquiring carbon than fungi

C

Plants are more efficient than fungi at acquiring carbon

D

Plants, more efficient than fungi at acquiring carbon

Which of the following has the least carbon percentage?

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