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Questions - Part 2 (in Hindi)
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Questions on Entropy Change and Volume of Solid of Revolution.

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

U
Unacademy user
  1. SOLUTION AND ANALYSIS OF ONE MARK QUESTIONS (IN HINDI) GRADUATE APTITUDE TEST IN ENGINEERING Forenoon Session BY: LOHIT KUMAR YADAV


  2. ABOUT ME: Secured AIR 1 in ESE 2017. Appeared for ISRO, BARC, BEL, BPCL, IOCL Interviews 2 years professional experience AFSB Mysore, 2014 Educator on Unacademy since December, 2017 Hobbies: Reading Fictional Novels, Cooking, Playing Piano.


  3. A parabola x - y with o s x s 1 is shown in the figure. The volume of the solid of rotation obtained by rotating the shaded area by 360 around the x-axis is (a) 2 (c) jx /2 (d) 4


  4. Reference Lesson: Questions 15 ( Calculus 2) Ques: The parabolic arc y = Vx , 1 volume of the solid of revolution is x 2 is revolved around the x-axis. The a) b) c) d) /4 /2 3T/4 37/2


  5. 1.5 0:5 0 0.5 1.5



  6. Right Answer : (b) / 2


  7. Air of mass 1 kg, initially at 300 K and 10 bar, is allowed to expand isothermally till it reaches a pressure of 1 bar. Assuming air as an ideal gas with gas constant of 0.287 kJ/kgK, the change in entropy of air (in kJ/kgK, round off to two decimal places) is