Production and Industrial Engineering
GATE PI format:mcq PYQs
Build your understanding with focused practice from past exam papers.
Questions 81–90 of 367. Imported answers require independent review unless marked reviewed.
Question 14
Open questionPIMCQ1 markNeeds review
A thin copper wire carries electric current and is insulated by putting a sleeve of thickness
, over it. In steady state conditions, the rate of heat loss from the insulated wire per unit length is
. Which of the following is TRUE?Your answerChoose one option.
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Open questionPIMCQ1 markNeeds review
The solidification time of a cube and a cylinder of the same material, produced through the same sand casting process, is found to be equal. Each side of the cube is
, and the radius and the length of the cylinder are
and
, respectively. If the solidification time is governed by Chvorinov’s equation, then the ratio
isYour answerChoose one option.
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Open questionPIMCQ1 markNeeds review
Match each of the listed defects in deep drawing cup with the corresponding reason in the table.
Defect in deep drawing cup | Reason |
|---|---|
P: Orange peel on the surface of cup | 1: No blank holding force |
Q: Wrinkling at the flange of cup | 2: Very small corner radius of the punch |
R: Tearing at the bottom corner of cup | 3: Large grain size in the blank material |
S: Earing at the top edge of the cup | 4: Anisotropy of the blank material |
Your answerChoose one option.
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Open questionPIMCQ1 markNeeds review
Which one of the following pure metals has the hexagonal close packed (HCP) crystal structure at room temperature?
Your answerChoose one option.
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To create 12 divisions on a disc by using simple indexing and dividing head on a horizontal milling machine, choose the correct option for the rotation of the crank pin.
Your answerChoose one option.
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Open questionPIMCQ1 markNeeds review
The following layout of four departments P, Q, R and S is provided as input to CRAFT (Computerized Relative Allocation of Facilities Technique). Which one of the following department pairs cannot be considered for exchange in CRAFT?
Your answerChoose one option.
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Which of the following concepts is not closely inter-related with INTERCHANGEABILITY in the context of product design?
Your answerChoose one option.
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Which one of the following THERBLIGS does not advance the progress of the work and can be eliminated by applying the principles of motion economy?
Your answerChoose one option.
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If work sampling is carried out using a large number of observations, then the required sample size is estimated using
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Open questionPIMCQ1 markNeeds review
Which of the following is NOT an assumption of a linear programming problem?
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