Change of state namely evaportation condensation, freezing and melting is an __________ process.

Question: Methyl orange indicator turns
[A].

orange yellow in alkaline medium.

[B].

orange yellow in acidic medium.

[C].

colourless in acidic medium.

[D].

colourless in basic medium.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Identify the false statement
[A].

Martensitic steels are less susceptible to pitting corrosion than austenitic steels.

[B].

Pitting corrosion is usually very localised.

[C].

Hydrogen embrittlement is facilitated by tensile stress.

[D].

Stress corrosion cracking is facilitated by tensile stress.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Machinability of hard alloys and tool steels is improved by
[A].

spherodising

[B].

annealing

[C].

tempering

[D].

normalising

Answer: Option B

Explanation:

No answer description available for this question.