Targate4(ME)

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Targate4(ME)

Postby AnonymouSS » Mon Nov 26, 2012 10:55 pm

I think the solutions of some questions asked in TG4 are wrong............
those are (1) the question asked on stress concentration factor (carrying 1 mark).....the solution is wrong the formula will be 2*a/b. check formula from v b bhandari,
(2) the direction of flow from which point to which point(carrying 1 mark)..........the solution is probably wrong.
(3) the solution of integration of function ((e^x)+(e^-x))/((e^x)-(e^-x)) (carrying 2 marks)..........will be none of these but the solution is given log((e^x)+(e^-x))....



!!!NEED A QUICK REPLY PLEASE!!!!!
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Re: Targate4(ME)

Postby himansh56 » Mon Nov 26, 2012 11:43 pm

yes you are right... some solutions are incorrect..
but i think solution of only que no-27 and que no-65 are incorrect...
just check it and reply.....
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Re: Targate4(ME)

Postby AnonymouSS » Tue Nov 27, 2012 12:10 am

............
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Re: Targate4(ME)

Postby himansh56 » Wed Nov 28, 2012 4:51 pm

please ckeck it again...
they did calculation with "density=(area/population)"
the correct ans should b "hyderabad"
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Re: Targate4(ME)

Postby AnonymouSS » Wed Nov 28, 2012 11:57 pm

the solution they have done is right but answer key is wrong.....
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Re: Targate4(ME)

Postby utsavshah » Thu Nov 29, 2012 12:42 pm

1. Q6- STRES CONCENTRATION FACTOR WOULD BE 1+(2A/B)
2. I THINK IN Q12 IT IS NOT CLEARLY MENTIONED WHAT THEY'VE WRITTEN IN THE SOLUTION. CORRECT ANSWER SHOULD BE "A"
3. IN Q42 , HOW TO DIFFERENTIATE BETWEEN ANS"A" AND ANS"B" ? BOTH ARE EQUALLY LOGICAL
4. WELL IN SOLUTION OF ANS 51, THEY HAVE SAID ENTROPY OF THE SYSTEM CANNOT BE NEGATIVE... BUT HERE I AM PRETTY SURE THAT ENTROPY OF THE ''UNIVERSE'' CAN NOT BE NEGATIVE...NEGATIVE ENTROPY OF THE ''SYSTEM'' DEPICTS IRREVERSIBLE PROCESS WHILE POSITIVE ENTROPY OF THE ''SYSTEM'' DEPICTS IMPOSSIBLE PROCESS. SO I THINK CORRECT ANSWER SHOULD BE ''B'' AND NOT ''C''....MOREOVER THE SUMMATION OF ENTROPY CHANGES OF SYSTEM AND SURROUNDINGS HERE IS POSITIVE WHICH ALSO DEPICTS IRREVERSIBLE PROCESS AND NOT IMPOSSIBLE. MOREOVER ,AS EASILY CAN BE SEEN ENERGY IS ALSO CONSERVED.

5. APART FROM THE LOGIC THEY HAVE APPLIED IN MANY OF THE VERBAL QUESTIONS (WHICH IS NOT WRONG,BUT OTHER ANSWERS MIGHT BE APPLICABLE), SOLUTION OF Q-65 IS UNDOUBTEDLY WRONG. CORRECT ANSWER SHOULD BE HYDERABAD .

# CORRECT ME IF I AM WRONG.
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Re: Targate4(ME)

Postby utsavshah » Thu Nov 29, 2012 12:44 pm

CAN SOMEONE PLEASE JUSTIFY THE ANSWER OF THE Q-15 ?? PLEASE EXPLAIN HOW IT IS ISOBARIC PROCESS ...
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Re: Targate4(ME)

Postby utsavshah » Thu Nov 29, 2012 12:58 pm

IN Q32 ALSO..IN THE SOLUTION THERE IS A MINOR CALCULATION ERROR. (SIGMA Y) IS SUPPOSED TO BE 3320 AND NOT 3220...SO THE CORRECT ANSWER OF THE QUESTION 32 SHOULD BE ''864'' WHICH IS NOWHERE IN THE OPTIONS.
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Re: Targate4(ME)

Postby vishnu05 » Fri Nov 30, 2012 12:57 am

i think answers of many questions are wrong as
6)formula is (1+2a/b)=(1+2/2)=2 ans:(D)
27) ans solved has calculation mistake ans is (D) none of these;log(e^x-e^-x)+c.
33) ans.should be (A) as per bhandari.(as per example no 8.4,page no.279,third edition)transverse position fails due to tension and parallel position fails due to shear.
50) ans should be (C) as per Nag. as heat given to system is positive and work taken from the system is negative. here heat given is 1200kj and 800kj while taken out is 600kj and 200kj.
similarly ans of 51 also changes.
65)population density=pop./area. hydb=75.75/609=.12; mumbai=212.55/777=.27
hence ans is hydb.(D).
and solution of que no.(12) is not clear.
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Re: Targate4(ME)

Postby vishnu05 » Fri Nov 30, 2012 1:09 am

in que 42) as calculating max moment between A and E it is at mid of those not at E. hence (A) is correct option.
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