Engineering Materials - General Engineering - Production & Industrial Engineering Previous Year Questions

1

2007 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2007

A component made of a material with a modulus of elasticity of 200 MPa and modulus of rigidity of 80 MPa experiences an axial strain of 1000. The lateral strain experienced by the component within the elastic limit is

A

250

B

400

C

500

D

800

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2

2007 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2007

"Matching Exercise". Choose the correct one out of the alternatives A,B,C,D

A

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

B

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

C

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

D

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

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3

2008 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2008

When 0.8% carbon eutectoid steel is slowly cooled from 750°C to room temperature,

A

austenite transforms to pearlite

B

pearlite transforms to austenite

C

austenite transforms to martensite

D

pearlite transforms to martensite

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4

2008 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2008

Match the following:

A

P–2, Q–3, R–4, S–1

B

P–3, Q–4, R–1, S–2

C

P–2, Q–3, R–1, S–4

D

P–2, Q–4, R–3, S–1

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5

2009 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2009

A typical Fe-C alloy containing greater than 0.8% C is known as

A

Eutectoid steel

B

Hypoeutectoid steel

C

Mild steel

D

Hypereutectoid steel

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6

2009 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2009

The capacity of a material to absorb energy when deformed elastically, and to release it back when unloaded is termed as

A

toughness

B

resilience

C

ductility

D

malleability

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7

2010 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2010

Which one among the following statements is TRUE?

A

Thermoplastic polymers have cross-linked chain structure

B

Thermosetting polymers have covalent bonded three-dimensional structure

C

Polyethylene is a thermosetting polymer

D

Thermoplastic polymers harden on heating and soften on cooling

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8

2010 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2010

Eutectic composition of iron-carbon alloy always corresponds to its

A

lowest melting temperature

B

highest melting temperature

C

least carbon percentage

D

highest fracture toughness

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9

2010 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2010

As the weight percentage of carbon increases in plain carbon steel, its

A

weldability decreases

B

ductility improves

C

tensile strength decreases

D

formability improves

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10

2010 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2010

Choose the most appropriate word from the options given below to complete the following sentence: If we manage to ______ our natural resources, we would leave a better planet for our children.

A

uphold

B

restrain

C

cherish

D

conserve

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11

2010 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2010

Choose the most appropriate word from the options given below to complete the following sentence:
If we manage to ____________ our natural resources, we would leave a better planet for our children.

A

uphold

B

restrain

C

cherish

D

conserve

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12

2010 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2010

Modern warfare has changed from large scale clashes of armies to suppression of civilian populations. Chemical agents that do their work silently appear to be suited to such warfare; and regrettably, there exist people in military establishments who think that chemical agents are useful tools for their cause.

Which of the following statements best sums up the meaning of the above passage?

A

Modern warfare has resulted in civil strife.

B

Chemical agents are useful in modern warfare.

C

Use of chemical agents in warfare would be undesirable.

D

People in military establishments like to use chemical agents in war.

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13

2011 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2011

A circular steel shaft is under elastic deformation due to torsion. The relationship between modulus of elasticity (E) and shear modulus of elasticity (G), taking v as Poisson's ratio, is

A

G = 2E(1 + v)

B

E = 2G(1 + v)

C

\(G = \frac{2E}{(1 + v)}\)

D

\(E = \frac{2G}{(1 + v)}\)

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14

2011 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2011

Which of the following is a surface (two-dimensional) imperfection in the crystal structure of common metals?

A

Vacancy

B

Dislocation

C

Grain boundary

D

Inclusion

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15

2011 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2011

Match the following materials with their most appropriate application:

A

1. Low carbon steel - P. Machine tool base
2. Stainless steel - Q. Aircraft parts
3. Gray cast iron - R. Kitchen utensils
4. Titanium alloys - S. Car body panels

B

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

C

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

D

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

E

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

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16

2011 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2011

Match the following :

Type of material	Name of material
1. Thermoplastics	P. SiAlON
2. Thermosets	Q. Polyvinylchloride
3. Elastomers	R. Epoxy
4. Ceramics	S. Latex

A

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

B

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

C

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

D

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

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17

2013 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2013 [Session 1]

For a ductile material, toughness is a measure of

A

resistance to scratching

B

ability to absorb energy up to fracture

C

ability to absorb energy till elastic limit

D

resistance to indentation

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18

2013 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2013 [Session 1]

A single riveted lap joint of two similar plates as shown in the figure below has the following geometrical and material details.
plate width w = 200 mm
plate thickness t = 5 mm
number of rivets n = 3
rivet diameter d_r = 10 mm
rivet hole diameter d_h = 11 mm
allowable tensile stress of plate σ_t = 200 MPa
allowable bearing stress of rivet σ_c = 150 MPa
If the plates are to be designed to avoid tearing failure, the maximum permissible load P in kN is

A

83

B

125

C

167

D

501

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19

2013 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2013 [Session 4]

A single riveted lap joint of two similar plates as shown in the figure below has the following geometrical and material details. plate width \( w = 200 \) mm, plate thickness \( t = 5 \) mm, number of rivets \( n = 3 \), rivet diameter \( d_r = 10 \) mm, rivet hole diameter \( d_h = 11 \) mm, allowable tensile stress of plate \( \sigma_p = 200 \) MPa, allowable bearing stress of rivet \( \sigma_c = 150 \) MPa. If the plates are to be designed to avoid tearing failure, the maximum permissible load \( P \) in kN is

A

83

B

125

C

167

D

501

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20

2014 · Production & Industrial Engineering · General Engineering · Engineering Materials

Production & Industrial Engineering (PI) 2014

Relationship between Young’s Modulus (E), Shear Modulus (G), and Poisson’s Ratio (μ), for a material obeying the Hooke’s Law, is

A

\(E = \frac{G}{(2+\mu)}\)

B

\(E = \frac{2G}{(1+\mu)}\)

C

\(E = G(1+\mu)\)

D

\(E = 2G(1+\mu)\)

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