Chemical Engineering - Chemical Engineering Basics

46. 

The main constituent of bones is

A. CaF2
B. Ca3(PO4)2
C. CaCO3
D. CaCl2

Answer: Option B

Explanation:

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47. 

Globular form of cementite is formed during the __________ process.

A. spherodising
B. hardening
C. annealing
D. normalising

Answer: Option B

Explanation:

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48. 

Faraday's law of electrolysis is related to the

A. cation speed.
B. atomic number of the cation.
C. equivalent mass of the electrolyte.
D. none of these.

Answer: Option C

Explanation:

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49. 

The two elements required to form substitutional solid solution should not have

A. same crystalline structure.
B. same valancy
C. widely differing electronegativity.
D. same atomic sizes.

Answer: Option C

Explanation:

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50. 

Rankine cycle comprises of two isothermal and two __________ processes.

A. isobaric
B. polytropic
C. isentropic
D. none of these

Answer: Option D

Explanation:

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