tag:blogger.com,1999:blog-5597800477484578300.post6211208621304303452..comments2019-06-06T20:25:21.290+05:30Comments on Gift your experience Here: BARC OCES/DGFS recruitment interview questions - Part 2Saikrishna Nadellahttp://www.blogger.com/profile/00076903460318754661noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-5597800477484578300.post-90127263850683238562019-06-06T20:25:21.290+05:302019-06-06T20:25:21.290+05:30Yes, thank you very much for responding. Yes, thank you very much for responding. dineshhttps://www.blogger.com/profile/10146226799980422837noreply@blogger.comtag:blogger.com,1999:blog-5597800477484578300.post-88767364308045918312019-06-04T17:43:32.832+05:302019-06-04T17:43:32.832+05:30Are you asking about qn 3?
Actually, from equilibr...Are you asking about qn 3?<br />Actually, from equilibrium analysis<br />P/(2.sin (theta)) = W<br />It seems "One cannot make theta zero by any amount of weight W as far as P is non_zero". Saikrishna Nadellahttps://www.blogger.com/profile/00076903460318754661noreply@blogger.comtag:blogger.com,1999:blog-5597800477484578300.post-46444972455250932272019-06-04T14:51:35.888+05:302019-06-04T14:51:35.888+05:30or we have to use equilibrium analysis.
or we have to use equilibrium analysis.<br />dineshhttps://www.blogger.com/profile/10146226799980422837noreply@blogger.comtag:blogger.com,1999:blog-5597800477484578300.post-15290200179806715312019-06-04T14:46:14.298+05:302019-06-04T14:46:14.298+05:30in question no 2 for making theta to zero the valu...in question no 2 for making theta to zero the value of p must be 0.<br />dineshhttps://www.blogger.com/profile/10146226799980422837noreply@blogger.comtag:blogger.com,1999:blog-5597800477484578300.post-43123746731245320622019-05-19T13:36:01.222+05:302019-05-19T13:36:01.222+05:30for horizontal (or flat) profile at the end you ma...for horizontal (or flat) profile at the end you may denote time as "infinity"Saikrishna Nadellahttps://www.blogger.com/profile/00076903460318754661noreply@blogger.comtag:blogger.com,1999:blog-5597800477484578300.post-11155479359278805732019-05-19T13:34:04.696+05:302019-05-19T13:34:04.696+05:30Hello Dinesh,
6th question is indeed an unsteady ...Hello Dinesh,<br /> 6th question is indeed an unsteady problem. Since they are asking only to draw the temperature profiles at some typical instances of time (t>0), you can approach problem like this... First see the typical shape of profile in transient heat conduction through infinite media (ref Incropera or Cengel). then draw that profile on both sides with 300 K in remaining middle portion. after some time, both the profiles start interacting. so, you can make next instance by rising the center portion temperature to certain higher value. then reduce the valley size to approach the horizontal profile (as both ends are at same temperature). <br /><br />Question 10: scaling of heat exchanger tubes can be identified by comparing the pressure drop and overall duty of the exchanger with benchmark values. the benchmark values are nothing but those values obtained during initial operation of the heat exchanger. if pressure drop on tube side increases with same flow rate, then scaling might have occurred. duty of heat exchanger may or may not be affected depending on whether tube side transfer coefficient is dominating or not. Saikrishna Nadellahttps://www.blogger.com/profile/00076903460318754661noreply@blogger.comtag:blogger.com,1999:blog-5597800477484578300.post-4794103484673525432019-05-17T11:02:25.779+05:302019-05-17T11:02:25.779+05:306th is a unsteady state problem how to solve such ...6th is a unsteady state problem how to solve such problems.<br />Can you answer this 10. How can you find whether scaling occurred on condenser tubes or not?<br /><br /><br />dineshhttps://www.blogger.com/profile/17705952535918378352noreply@blogger.com