Complete GATE PI 2017 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 49–51 of 65. Imported answers require review unless explicitly marked reviewed.

Paper practice 65 questionsPage 17 of 22

Question 49

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PIMCQ2 marksNeeds review
In a machine shop, four jobs need to be assigned to four different machines. Each of the jobs is to be assigned to one machine only at a time. The time taken to complete the job in different machines is given in the Table.
Jobs / Machines
M₁
M₂
M₃
M₄
J₁
15
13
14
17
J₂
11
12
15
13
J₃
13
12
10
11
J₄
15
17
14
16
In order to ensure that the total time required to complete all the jobs is minimum, the optimal assignment of the job is
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Question 50

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A hose coupling manufacturing company has production capacity of 2,500 units per year. The unit selling price of the item is Rs. 150. The fixed cost of production is Rs. 80,000 and variable cost of production per unit is Rs. 70. If the company wishes to achieve a profit of Rs. 20,000 during the calendar year, then the minimum quantity to be produced is

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Question 51

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Schematic diagram of pouring basin and sprue of a gating system is shown in the Figure.
Diagram for Production and Industrial Engineering question 51

Depth of molten metal in the pouring basin is 100 mm and the height of the sprue is 1,500 mm. Considering the cross-section of the sprue is circular, the ratio

to avoid aspiration is
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