Liquid nitrogen containers can be made from ___________________?

Question: __________ is the most suitable lubricant for drawing mild steel wires?
[A].

Kerosene

[B].

Water

[C].

Sodium stearate

[D].

Lime water

Answer: Option C

Explanation:

No answer description available for this question.

Question: __________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.
[A].

Borosilicate

[B].

High silica

[C].

Supermax

[D].

Lead

Answer: Option C

Explanation:

No answer description available for this question.

Question: For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be
[A].

100% indirect reduction.

[B].

100% direct reduction.

[C].

50-60% indirect reduction.

[D].

30-40% indirect reduction.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Air-petrol ratio for maximum power generation in spark ignition engine is about
[A].

6:1

[B].

12 : 1

[C].

18 : 1

[D].

24 : 1

Answer: Option B

Explanation:

No answer description available for this question.