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GATE 2017 Set 2
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1. GATE 2017- Set2 By: Lohit K Yadav

2. Which one of the following statements is TRUE for the ultrasonic machining (USM) process? In USM, the tool vibrates at subsonic frequency. USM does not employ magnetostrictive transducer. USM is an excellent process for machining ductile materials. USM often uses a slurry comprising abrasive-particles and water. A) B) C) D)

3. The standard deviation of linear dimensions P and Q are 3 micro-m and 4micro-m,respectively. When assembled, the standard deviation (in micro-m) of the resulting linear dimension (P+Q) is,

4. =2S

5. The emissive power of a blackbody is P. If its absolute temperature is doubled, the emissive power becomes. a) 2P b) 4P c) 8P d) 16P

6. The state of stress at a point is 0 and 50MPa. The maximum normal stress (in MPa) at that point is

7. Ven- S.gn= SO HPa n

8. Two coins are tossed simultaneously. The probability (upto two decimal points accuracy) of getting at least one head is

9. M,M M, 7 1, n) 0.25

10. Thank You