Production and Industrial Engineering
GATE PI format:mcq PYQs
Build your understanding with focused practice from past exam papers.
Questions 281–290 of 367. Imported answers require independent review unless marked reviewed.
Question 32
Open questionPIMCQ2 marksNeeds review
A 100 mm long cylindrical workpiece of diameter 50 mm is reduced to 25 mm diameter using extrusion process. The flow curve for the metal has strength coefficient as
MPa and the strain hardening co-efficient is 0.15. Assuming no friction and no redundant work, the required ram pressure (in MPa) is closest toYour answerChoose one option.
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Open questionPIMCQ2 marksNeeds review
An LPP is defined as
Minimize
subject to,
The objective function of the dual of this LPP is
Your answerChoose one option.
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Open questionPIMCQ2 marksNeeds review
A 20 mm HS drill with a point angle of 118° is used for drilling a through hole on a metallic plate of thickness 100 mm with a cutting speed of 333.33 mm/s and feed of 0.22 mm/rev. Assuming that the drill is touching the surface of the plate at the start, the drilling time (in s) is closest to
Your answerChoose one option.
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Open questionPIMCQ2 marksNeeds review
An acceptance sampling plan is selected with sample size
, acceptance number
for a lot size of 10,000 units. The probability of accepting the lot is based on Poisson distribution. Assuming rectification inspection, if incoming lot quality
is 0.03 and mean (
) is 2.4, the average outgoing quality (AOQ) is closest toYour answerChoose one option.
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Open questionPIMCQ2 marksNeeds review
The mean time to repair (MTR) for a repairable system is 30 minutes. When maintenance time changes from 20 minutes to 40 minutes, the net increase in maintainability is closest to
Your answerChoose one option.
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Open questionPIMCQ2 marksNeeds review
A company invests Rs.50 thousand in assets. The initial investment is Rs.30 thousand with two subsequent investments of Rs.10 thousand each at the end of 1st year and 2nd year. The useful life of the assets is 10 years with no salvage value at the end. If the interest rate is 10% and the minimum attractive rate of return (MARR) is 12%, the annual capital recovery and return (CRR) in thousands of Rs. is
Your answerChoose one option.
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Open questionPIMCQ2 marksNeeds review
The man-hours required (
) to manufacture the
unit in a plant is given by
, where
at the 80% learning rate. If the manufacturing time for the first unit (
) is 80 man-hours, the total time (in man-hours) required to manufacture the first 4 units, at 80% learning rate, isYour answerChoose one option.
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Open questionPIMCQ2 marksNeeds review
A firm, with a production target of 50,000 units/year, has the following data for the selection of a new location for its plant:
Location | Fixed cost (Rs.) | Variable cost per unit (Rs.) |
|---|---|---|
P | 110,000 | 2 |
Q | 95,000 | 2.5 |
R | 80,000 | 3 |
S | 75,000 | 3.5 |
The most economical location for the firm is
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Open questionPIMCQ2 marksNeeds review
Considering included angle
of the thread to be 60° using the Best-Wire method, the difference between the effective diameter (
) and the dimension under the wire (
) for M10 × 1.0 mm is closest toYour answerChoose one option.
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Open questionGAMCQ1 markNeeds review
“The dress ______ her so well that they all immediately ______ her on her appearance.”
The words that best fill the blanks in the above sentence are
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