Production and Industrial Engineering
GATE PI topic:industrial-engineering PYQs
Build your understanding with focused practice from past exam papers.
Questions 341–350 of 650. Imported answers require independent review unless marked reviewed.
Question 6
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Pearlite microstructure in an eutectoid steel consists of alternating layers of two phases, namely α ferrite and
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Which one of the following defects is NOT associated with welding processes?
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Match the component with the corresponding manufacturing process in the table below.
Component | Manufacturing process |
|---|---|
P: Aluminum alloy piston for IC engine | 1: Blow molding |
Q: Low carbon steel oil pan | 2: Powder metallurgy |
R: Tungsten carbide cutting tool insert | 3: Sand casting |
S: Plastic bottle | 4: Deep drawing |
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In a turning operation, doubling the cutting speed (
) reduces the tool life (
) to
th of the original tool life. The exponent
in the Taylor’s tool life equation,
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Which one among the following mechanisms is NOT used for transforming rotation to translation in machine tools?
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Match the measuring feature with the corresponding measuring instrument in the table below.
Measuring feature | Measuring instrument |
|---|---|
P: Flatness error of a surface plate | 1: Auto collimator |
Q: Profile of a cam | 2: Tool maker’s microscope |
R: Alignment error of a machine tool slide way | 3: Dividing head and dial gauge |
S: Pitch and angle errors of screw thread | 4: Optical interferometer |
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The frequency of pulsing in a die-sinking electric discharge machine (EDM) is 10 kHz. The pulse off-time is set at 40 micro-seconds. The duty factor at this setting is
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A cantilever beam of length 0.3 m is subjected to a uniformly distributed load
kN/m, as shown in the figure. The bending (flexural) rigidity of the beam is 5000 Nm². Neglecting the self-weight of the beam, the magnitude of beam curvature in m⁻¹ at the fixed end is 
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A circular rod of length
m is subjected to a compressive load
, as shown in the figure. The bending (flexural) rigidity of the rod is 2000 Nm
. If both ends are pinned, then the critical load
in N (rounded to the nearest integer) at which the rod buckles elastically is 
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Two cylindrical parts of equal length
, as shown in the figure, made of steel having Young’s modulus
GPa and Poisson’s ratio
are press fitted upon one another. If radial interference
mm, and radii
mm and
mm, then the contact pressure
in MPa at the interface upon press fit is 
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