Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering Page-9 section-12

Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Section 7 Section 8 Section 9 Section 10 Section 11 Section 12 Section 13

81.
The noble metals

A. Are exemplified by Na, K and Li

B. Do not resist corrosion very strongly

C. Are the lowermost in the electro-chemical series of metals

D. None of these

Answer & Solution Discuss in Board Save for Later

82.
Filler material used in welding should have __________ as compared to the parent metal to be welded.

A. Lower melting temperature

B. Same melting temperature

C. Same composition

D. Both B & C

Answer & Solution Discuss in Board Save for Later

83.
The leaching solvent used in Baeyer's process for the purification of bauxite is

A. Ammonium hydroxide

B. Sodium carbonate

C. Sodium hydroxide

D. Ammonium carbonate

Answer & Solution Discuss in Board Save for Later

84.
The unit of g_c is

A. lb_m/lb_f . ft/seC₂

B. lb_f/lb_m . ft/seC₂

C. lb_m/lb_f . seC₂/ft

D. lb_f/lb_m . seC₂/ft

Answer & Solution Discuss in Board Save for Later

85.
A thermally thin body is the one for which

A. Biot number is less than 0.1

B. Gallileo number is less than 0.1

C. Fourier number is less than 0.1

D. Fourier number is greater than 0.1

Answer & Solution Discuss in Board Save for Later

86.
Euler number is defined as the ratio of inertia force to __________ force.

A. Pressure

B. Elastic

C. Gravity

D. Viscous

Answer & Solution Discuss in Board Save for Later

87.
Existence of velocity potential implies that the fluid is

A. Irrotational

B. Ideal

C. Compressible

D. In continuum

Answer & Solution Discuss in Board Save for Later

88.
The property of material, by which a given amount of energy is absorbed by it without plastic deformation, is called the

A. Resilience

B. Toughness

C. Ductility

D. Impact strength

Answer & Solution Discuss in Board Save for Later

89.
Pick out the wrong statement.

A. Both annealing and normalising release the internal stresses of the material besides improving the mechanical properties

B. Low carbon steel does not respond to the heat treatment for hardening of the material, hence it is subjected to case hardening or surface hardening processes like cyniding, carburising, nitriding etc.

C. Induction hardening and flame hardening techniques are also used for surface hardening

D. Martempering of a material is a hardening process

Answer & Solution Discuss in Board Save for Later

90.
Preheating before welding is done to

A. Make the plate softer

B. Burn oil & grease sticking to plate surfaces

C. Avoid plate distortion

D. Prevent cold cracks

Answer & Solution Discuss in Board Save for Later

1 2 3 4 5 6 7 8 9 10

Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

81. The noble metals

Answer & Solution

82. Filler material used in welding should have __________ as compared to the parent metal to be welded.

Answer & Solution

83. The leaching solvent used in Baeyer's process for the purification of bauxite is

Answer & Solution

84. The unit of gc is

Answer & Solution

85. A thermally thin body is the one for which

Answer & Solution

86. Euler number is defined as the ratio of inertia force to __________ force.

Answer & Solution

87. Existence of velocity potential implies that the fluid is

Answer & Solution

88. The property of material, by which a given amount of energy is absorbed by it without plastic deformation, is called the

Answer & Solution

89. Pick out the wrong statement.

Answer & Solution

90. Preheating before welding is done to

Answer & Solution

Read More Section(Chemical Engineering Basics)

81.
The noble metals

82.
Filler material used in welding should have __________ as compared to the parent metal to be welded.

83.
The leaching solvent used in Baeyer's process for the purification of bauxite is

84.
The unit of g_c is

85.
A thermally thin body is the one for which

86.
Euler number is defined as the ratio of inertia force to __________ force.

87.
Existence of velocity potential implies that the fluid is

88.
The property of material, by which a given amount of energy is absorbed by it without plastic deformation, is called the

89.
Pick out the wrong statement.

90.
Preheating before welding is done to