Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

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71.
Which of the, following is not associated with the functioning of a petrol engine ?

A. Compression ignition system

B. Spark plug

C. Carburettor

D. Otto cycle

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72.
With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________ is not affected.

A. Impact strength

B. Percent elongation

C. Hardness

D. Both B & C

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73.
Which of the following fastening devices has a head at one end and a nut fitted to the other?

A. Bolt

B. Stud

C. Top bolt

D. None of these

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74.
Evaporative cooling process employs a combination of cooling and humidification in which the

A. Sensible heat is added

B. Sensible heat is removed and the latent heat is added

C. Latent heat is removed

D. Sensible heat is added and latent heat is removed

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75.
Difference at any instant between the value of the controlled variable and the set point is called the

A. Deviation

B. Derivative time

C. Error ratio

D. Differential gap

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76.
A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K For the same temperature drop and heat loss, this refractory wall can be replaced by a layer of diatomaceous earth of thermal conductivity 0.14 W/m.K and thickness __________ metre.

A. 0.01

B. 0.1

C. 0.25

D. 0.5

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77.
Large scale fire on fuel gas line is normally extinguished by

A. Water

B. Steam

C. Foam

D. Nitrogen

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78.
Theoretical volume of oxygen required for complete combustion of 1 Nm³ of acetylene, in oxy-acetylene welding is __________ Nm³ .

A. 0.5

B. 1

C. 2

D. 2.5

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79.
Annealing of a material does not

A. Permit its further cold working

B. Soften it

C. Case harden it

D. None of these

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80.
Multistage compression is necessary for high efficiency,

A. If the ratio of the delivery pressure to the intake pressure exceeds 5:1

B. When large amount of gas is to be compressed

C. When the delivered gas is desired at very high velocity

D. None of these

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Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

71. Which of the, following is not associated with the functioning of a petrol engine ?

Answer & Solution

72. With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________ is not affected.

Answer & Solution

73. Which of the following fastening devices has a head at one end and a nut fitted to the other?

Answer & Solution

74. Evaporative cooling process employs a combination of cooling and humidification in which the

Answer & Solution

75. Difference at any instant between the value of the controlled variable and the set point is called the

Answer & Solution

76. A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K For the same temperature drop and heat loss, this refractory wall can be replaced by a layer of diatomaceous earth of thermal conductivity 0.14 W/m.K and thickness __________ metre.

Answer & Solution

77. Large scale fire on fuel gas line is normally extinguished by

Answer & Solution

78. Theoretical volume of oxygen required for complete combustion of 1 Nm3 of acetylene, in oxy-acetylene welding is __________ Nm3 .

Answer & Solution

79. Annealing of a material does not

Answer & Solution

80. Multistage compression is necessary for high efficiency,

Answer & Solution

Read More Section(Chemical Engineering Basics)

71.
Which of the, following is not associated with the functioning of a petrol engine ?

72.
With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________ is not affected.

73.
Which of the following fastening devices has a head at one end and a nut fitted to the other?

74.
Evaporative cooling process employs a combination of cooling and humidification in which the

75.
Difference at any instant between the value of the controlled variable and the set point is called the

76.
A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K For the same temperature drop and heat loss, this refractory wall can be replaced by a layer of diatomaceous earth of thermal conductivity 0.14 W/m.K and thickness __________ metre.

77.
Large scale fire on fuel gas line is normally extinguished by

78.
Theoretical volume of oxygen required for complete combustion of 1 Nm³ of acetylene, in oxy-acetylene welding is __________ Nm³ .

79.
Annealing of a material does not

80.
Multistage compression is necessary for high efficiency,