GATE ME 2017 Paper 1 — page 17

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

Circular arc on a part profile is being machined on a vertical CNC milling machine. CNC part program using metric units with absolute dimensions is listed below:

N60 G01 X 30 Y 55 Z -5 F50 N70 G02 X 50 Y 35 R 20 N80 G01 Z 5

The coordinates of the centre of the circular arc are:

Your answerChoose one option.

(30, 55)

(50, 55)

(50, 35)

(30, 35)

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Assume that the surface roughness profile is triangular as shown schematically in the figure. If the peak to valley height is 20 μm, the central line average surface roughness

(in μm) is

Diagram for Mechanical Engineering question 50

Your answerChoose one option.

6.67

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Two models, P and Q, of a product earn profits of Rs. 100 and Rs. 80 per piece, respectively. Production times for P and Q are 5 hours and 3 hours, respectively, while the total production time available is 150 hours. For a total batch size of 40, to maximize profit, the number of units of P to be produced is ________

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2017 · Paper 1

Question 49

Question 50

Question 51