Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

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51.
Alcohols are not suitable as diesel engine fuel because the cetane number of alcohols is

A. Very low which prevents their ignition by compression

B. Very high which prevents their ignition by compression

C. Zero

D. None of these

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52.
During brazing, if the fluxes are entrapped, it results in the

A. Distortion of brazed joints

B. Cracking of joints

C. Presence of gas pockets

D. Corrosion

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53.
Which of the following is a disaccharide?

A. Lactose

B. Starch

C. Cellulose

D. Fructose

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54.
Which one of the following is incombustible?

A. H₂

B. CCl₄

C. C₂H₂

D. S

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55.
The entropy change for a spontaneous process is

A. > 0 for the system

B. < 0 for the system

C. > 0 for the system & the surrounding

D. < 0 for the system & the surrounding

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56.
The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the 'Curie temperature'. Its value for cobalt is __________ °C.

A. 768

B. 1127

C. 1359

D. 1480

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57.
Baffles provided on the shell side of a shell and tube heat exchanger are meant for

A. Providing support for the tubes

B. Improving heat transfer

C. Both A & B

D. Preventing the fouling of tubes & stagnation of shell side fluid

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58.
Iron content in Indian iron ore is about __________ percent.

A. 80-85

B. 60-65

C. 40-45

D. 20-25

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59.
Suitability of steel for its use in cable is judged by its strength in

A. Tension

B. Compression

C. Torsion

D. Shear

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60.
Which of the following is the largest quantum of pressure?

A. 1 kg/cm²

B. 1 bar

C. 1 atmosphere

D. 1 kilo Pascal

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Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

51. Alcohols are not suitable as diesel engine fuel because the cetane number of alcohols is

Answer & Solution

52. During brazing, if the fluxes are entrapped, it results in the

Answer & Solution

53. Which of the following is a disaccharide?

Answer & Solution

54. Which one of the following is incombustible?

Answer & Solution

55. The entropy change for a spontaneous process is

Answer & Solution

56. The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the 'Curie temperature'. Its value for cobalt is __________ °C.

Answer & Solution

57. Baffles provided on the shell side of a shell and tube heat exchanger are meant for

Answer & Solution

58. Iron content in Indian iron ore is about __________ percent.

Answer & Solution

59. Suitability of steel for its use in cable is judged by its strength in

Answer & Solution

60. Which of the following is the largest quantum of pressure?

Answer & Solution

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51.
Alcohols are not suitable as diesel engine fuel because the cetane number of alcohols is

52.
During brazing, if the fluxes are entrapped, it results in the

53.
Which of the following is a disaccharide?

54.
Which one of the following is incombustible?

55.
The entropy change for a spontaneous process is

56.
The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the 'Curie temperature'. Its value for cobalt is __________ °C.

57.
Baffles provided on the shell side of a shell and tube heat exchanger are meant for

58.
Iron content in Indian iron ore is about __________ percent.

59.
Suitability of steel for its use in cable is judged by its strength in

60.
Which of the following is the largest quantum of pressure?