Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

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71.
Probability of cavitation occuring becomes very high, when the local __________ resulting in water bubbles formation, which on rupture cause cavitation

A. Pressure falls below the vapour pressure

B. Pressure becomes very high

C. Temperature becomes low

D. All of the above

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72.
Tip of the match stick contains a mixture of

A. K + S

B. K + S + K₂Cr₂O₇

C. S + K₂Cr₂O₇ + White P

D. None of these

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73.
A friction lighter is normally used for lighting gas welding torch, because of the reason that

A. Its initial cost is very low

B. Duration of spark created is very small

C. Safety of welder is ensured

D. It is easier to operate & maintain

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74.
Gratings is associated with the measurement of

A. Linear displacement

B. Concavity/convexity

C. Surface texture

D. Flatness

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75.
Nickel is a __________ material.

A. Ferromagnetic

B. Semi-conductor

C. Paramagnetic

D. Ferroelectric

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76.
Coarse grained steels have

A. Low toughness

B. No tendency to distort

C. High density

D. Very high toughness

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77.
Colloids can be purified by

A. Dialysis

B. Reverse osmosis

C. Coagulation

D. Peptization

Answer & Solution Discuss in Board Save for Later

78.
An oxidation process is accompanied with decrease in the

A. Number of electrons

B. Oxidation number

C. Number of ions

D. All of the above

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79.
A reduction process is accompanied with increase in the

A. Number of electrons

B. Oxidation number

C. Both A & B

D. Neither A nor B

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80.
Ceramic compounds as compared to metallic compounds

A. Crystallise faster

B. Resist greater tensile stress at room temperature

C. Have higher melting temperature

D. Are better conductor of electricity at higher temperature

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Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

71. Probability of cavitation occuring becomes very high, when the local __________ resulting in water bubbles formation, which on rupture cause cavitation

Answer & Solution

72. Tip of the match stick contains a mixture of

Answer & Solution

73. A friction lighter is normally used for lighting gas welding torch, because of the reason that

Answer & Solution

74. Gratings is associated with the measurement of

Answer & Solution

75. Nickel is a __________ material.

Answer & Solution

76. Coarse grained steels have

Answer & Solution

77. Colloids can be purified by

Answer & Solution

78. An oxidation process is accompanied with decrease in the

Answer & Solution

79. A reduction process is accompanied with increase in the

Answer & Solution

80. Ceramic compounds as compared to metallic compounds

Answer & Solution

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71.
Probability of cavitation occuring becomes very high, when the local __________ resulting in water bubbles formation, which on rupture cause cavitation

72.
Tip of the match stick contains a mixture of

73.
A friction lighter is normally used for lighting gas welding torch, because of the reason that

74.
Gratings is associated with the measurement of

75.
Nickel is a __________ material.

76.
Coarse grained steels have

77.
Colloids can be purified by

78.
An oxidation process is accompanied with decrease in the

79.
A reduction process is accompanied with increase in the

80.
Ceramic compounds as compared to metallic compounds