GATE 2016- Set 2 By: Lohit K Yadav

For a certain job, the cost of metal cutting is Rs. 18C/V and the cost of tooling is Rs. 270 C/(TV), where Cis a constant, V is the cutting speed in m/min and T is the tool life in minutes. The Taylor's tool life equation is VTo.25 15e The cutting speed (in m/min) for he minimum total cost is

218 C 270

8 C 5 04 so 18 C 2 x1 o 3 x 230

The voltage-length characteristic of a direct current arc in an arc welding process is -100 401, where 1 is the length of the arc in mm and V is arc voltage in volts. During a welding operation length varies between 1 and 2 mm and the welding current is in the range 200-250 A Assuming a linear power source, the short circuit current is A. rc

given deta

180V, 12 = 200 A 250 Vou 1sc 200 1s Voc

So Lsc oc Divici 1toi-25) 40 180

Sc Jsc - 230 SC 21s = 850

In a binary system of A and B, a liquid of 20% A (80% B) is coexisting with a solid of 70% A (30% B). For an overall composition having 40% A, the fraction of solid is (A) 0.40 (C) 0.60 (B) 0.50 (D) 0.75

L AS s+ s 02 0:3

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Lohit Kumar Yadav

IRSME. Graduated in Mechanical engineering. Secured AIR 1 in ESE 2017. Believes in Quality Education for all.

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Premila raut

7 months ago

your are awsome sir... boht helpful lecture hai. thanku

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Sorry Saktiman

2 years ago

sir I want to know that how many time you have revised all syllabus during your prepration time.. to clear gate / ESE exams??

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Lohit Kumar Yadav

2 years ago

Covered this part in ESE strategy course

Sorry Saktiman

2 years ago

thank you..

Abhishek M

2 years ago

sir ese 19 ke liye made easy m weekend batch job ke Saath join karna Tek h.please give your suggestions

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Lohit Kumar Yadav

2 years ago

go through my YouTube videos

Abhishek M

2 years ago

ok

Sorry Saktiman

2 years ago

sir I want to know that how many time you have revised all syllabus during your prepration time.. to clear gate / ESE exams??

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