Mechanical Metallurgy MCQ Questions and Answers | Metallurgical Engineering Page-4 section-1

31.
For the manufacture of thin foil of aluminium, the following rolling mill is used:

A. Three high rolling mill

B. Sendzimir mill

C. Four stand continuous mill

D. Planetary mill

Answer & Solution Discuss in Board Save for Later

32.
If a cylindrical billet of height 1.0 m and diameter 0.5 m is upset forged to form a cylindrical pancake of height 0.25 m, the diameter of the pancake (in m) is

A. 0.4

B. 0.6

C. 1

D. 1.8

Answer & Solution Discuss in Board Save for Later

33.
The most serious manufacturing defect from fracture toughness point of view is

A. surface roughness

B. pore

C. spherical inclusion

D. crack

Answer & Solution Discuss in Board Save for Later

34.
Match the processes given in Group 1 with corresponding typical defects in Group 2.

Group 1 Group 2

P. Forging 1. Alligatoring

Q. Rolling 2. Cold shut

R. Deep drawing 3. Chevron Cracks

S. Extrusion 4. Wrinkles

A. P-1, Q-2, R-3, S-4

B. P-2, Q-1, R-4, S-3

C. P-2, Q-1, R-3, S-4

D. P-3, Q-1, R-4, S-2

Answer & Solution Discuss in Board Save for Later

35.
Match the deformation processes in Column I with the corresponding stress states listed in Column II.

Column I Column II

P. Wire Drawing 1. Direct Compression

Q. Forging 2. Indirect Compression

R. Stretch Forming 3. Tension

S. Cutting 4. Shear

A. P-1, Q-2, R-3, S-4

B. P-1, Q-2, R-4, S-3

C. P-2, Q-1, R-3, S-4

D. P-2, Q-1, R-4, S-3

Answer & Solution Discuss in Board Save for Later

36.
Match the fracture processes in Group 1 to the fracture surface morphologies in Group 2.

Group 1 Group 2

P. Ductile fracture 1. Clevage

Q. Brittle fracture 2. Dimples

R. Fatigue fracture 3. Striations

4. Veins

A. P-4, Q-2, R-3

B. P-2, Q-1, R-3

C. P-2, Q-3, R-1

D. P-4, Q-4, R-3

Answer & Solution Discuss in Board Save for Later

37.
The maximum possible reduction in a single pass for cold rolling of a 200 mm slab is (given the co-efficient of friction 0.1 and roll diameter is 400 mm) . . . . . . . . mm.

A. 5

B. 3

C. 2

D. 1

Answer & Solution Discuss in Board Save for Later

38.
Patenting process is a

A. wire drawing process

B. heat treatment for drawn wires

C. coating process for wires

D. deep drawing process

Answer & Solution Discuss in Board Save for Later

39.
Match the following components with their method of production.

P. Automobile crankshaft 1. Powder metallurgy

Q. Boiler drum 2. Submerged arc welding

R. Tungsten 3. Extrusion

S. Seamless tube 4. Forging

A. P-4, Q-2, R-3, S-1

B. P-4, Q-2, R-1, S-3

C. P-4, Q-3, R-2, S-1

D. P-3, Q-2, R-4, S-1

Answer & Solution Discuss in Board Save for Later

40.
A steel plate of 10 mm thickness is to be cold rolled. The mill has rolls of diameter 72 mm. If the co-efficient of friction μ = 0.3 the maximum possible thickness reduction in the first pass will approximately be . . . . . . . . %.

A. 10

B. 20

C. 30

D. 40

Answer & Solution Discuss in Board Save for Later

Group 1	Group 2
P. Forging	1. Alligatoring
Q. Rolling	2. Cold shut
R. Deep drawing	3. Chevron Cracks
S. Extrusion	4. Wrinkles

Column I	Column II
P. Wire Drawing	1. Direct Compression
Q. Forging	2. Indirect Compression
R. Stretch Forming	3. Tension
S. Cutting	4. Shear

Group 1	Group 2
P. Ductile fracture	1. Clevage
Q. Brittle fracture	2. Dimples
R. Fatigue fracture	3. Striations
	4. Veins

P. Automobile crankshaft	1. Powder metallurgy
Q. Boiler drum	2. Submerged arc welding
R. Tungsten	3. Extrusion
S. Seamless tube	4. Forging

Mechanical Metallurgy MCQ Questions and Answers | Metallurgical Engineering

31. For the manufacture of thin foil of aluminium, the following rolling mill is used:

Answer & Solution

32. If a cylindrical billet of height 1.0 m and diameter 0.5 m is upset forged to form a cylindrical pancake of height 0.25 m, the diameter of the pancake (in m) is

Answer & Solution

33. The most serious manufacturing defect from fracture toughness point of view is

Answer & Solution

34. Match the processes given in Group 1 with corresponding typical defects in Group 2. Group 1 Group 2 P. Forging 1. Alligatoring Q. Rolling 2. Cold shut R. Deep drawing 3. Chevron Cracks S. Extrusion 4. Wrinkles

Answer & Solution

35. Match the deformation processes in Column I with the corresponding stress states listed in Column II. Column I Column II P. Wire Drawing 1. Direct Compression Q. Forging 2. Indirect Compression R. Stretch Forming 3. Tension S. Cutting 4. Shear

Answer & Solution

36. Match the fracture processes in Group 1 to the fracture surface morphologies in Group 2. Group 1 Group 2 P. Ductile fracture 1. Clevage Q. Brittle fracture 2. Dimples R. Fatigue fracture 3. Striations 4. Veins

Answer & Solution

37. The maximum possible reduction in a single pass for cold rolling of a 200 mm slab is (given the co-efficient of friction 0.1 and roll diameter is 400 mm) . . . . . . . . mm.

Answer & Solution

38. Patenting process is a

Answer & Solution

39. Match the following components with their method of production. P. Automobile crankshaft 1. Powder metallurgy Q. Boiler drum 2. Submerged arc welding R. Tungsten 3. Extrusion S. Seamless tube 4. Forging

Answer & Solution

40. A steel plate of 10 mm thickness is to be cold rolled. The mill has rolls of diameter 72 mm. If the co-efficient of friction μ = 0.3 the maximum possible thickness reduction in the first pass will approximately be . . . . . . . . %.

Answer & Solution

31.
For the manufacture of thin foil of aluminium, the following rolling mill is used:

32.
If a cylindrical billet of height 1.0 m and diameter 0.5 m is upset forged to form a cylindrical pancake of height 0.25 m, the diameter of the pancake (in m) is

33.
The most serious manufacturing defect from fracture toughness point of view is

34.
Match the processes given in Group 1 with corresponding typical defects in Group 2.

Group 1 Group 2

P. Forging 1. Alligatoring

Q. Rolling 2. Cold shut

R. Deep drawing 3. Chevron Cracks

S. Extrusion 4. Wrinkles

35.
Match the deformation processes in Column I with the corresponding stress states listed in Column II.

Column I Column II

P. Wire Drawing 1. Direct Compression

Q. Forging 2. Indirect Compression

R. Stretch Forming 3. Tension

S. Cutting 4. Shear

36.
Match the fracture processes in Group 1 to the fracture surface morphologies in Group 2.

Group 1 Group 2

P. Ductile fracture 1. Clevage

Q. Brittle fracture 2. Dimples

R. Fatigue fracture 3. Striations

4. Veins

37.
The maximum possible reduction in a single pass for cold rolling of a 200 mm slab is (given the co-efficient of friction 0.1 and roll diameter is 400 mm) . . . . . . . . mm.

38.
Patenting process is a

39.
Match the following components with their method of production.

P. Automobile crankshaft 1. Powder metallurgy

Q. Boiler drum 2. Submerged arc welding

R. Tungsten 3. Extrusion

S. Seamless tube 4. Forging

40.
A steel plate of 10 mm thickness is to be cold rolled. The mill has rolls of diameter 72 mm. If the co-efficient of friction μ = 0.3 the maximum possible thickness reduction in the first pass will approximately be . . . . . . . . %.