1.  (tc1 – tc2)/(th1 – th2)

2.  (th2 – tc2)/(th1 – tc1)

3.  (th1 – th2)/(th1 – tc1)

4.  (tc2 – tc1)/(th1 – tc1)

4
Correct Answer :

(th1 – th2)/(th1 – tc1)


Explanation :
No Explanation available for this question

1.  100%

2.  75%

3.  50%

4.  Between 25% and 45%

4
Correct Answer :

50\%


Explanation :
No Explanation available for this question

1.  Glazed surface

2.  Smooth surface

3.  Oil surface

4.  Coated surface

4
Correct Answer :

Oil surface


Explanation :
No Explanation available for this question

1.  Parallel flow

2.  Counter flow

3.  Cross flow

4.  Same in all above

4
Correct Answer :

Same in all above


Explanation :
No Explanation available for this question

1.  Equal to that for current flow

2.  Greater than that for counter flow

3.  Smaller than that for counter flow

4.  Very much smaller than that for counter flow

4
Correct Answer :

Equal to that for current flow


Explanation :
No Explanation available for this question

1.  The outlet temperature of the fluid streams is not known as a priori

2.  Outlet temperature of the fluid stream is known as a pair

3.  The Outlet temperature of the hot fluid stream is known but that of the cold fluid stream is not known as a priori

4.  Inlet temperature of the fluid streams is known as a priori

4
Correct Answer :

The outlet temperature of the fluid streams is not known as a priori


Explanation :
No Explanation available for this question

1.  Prevent the stagnation of shell side fluid

2.  Improve heat transfer

3.  Provide support for tubes

4.  All of these

4
Correct Answer :

All of these


Explanation :
No Explanation available for this question

1.  10 μ

2.  5 μ

3.  0.25 μ

4.  0.025 μ

4
Correct Answer :

5 μ


Explanation :
No Explanation available for this question

1.  To increase overall heat transfer coefficient water side velocity can be increased if water is on the tube side

2.  Condenser can act as a storage unit for condensed steam

3.  Rate of condensation of stem is invariably smaller than the mass flow rate of cooling water

4.   It is easier to maintain vacuum on the shell side than on the tube side

4
Correct Answer :

To increase overall heat transfer coefficient water side velocity can be increased if water is on the tube side


Explanation :
No Explanation available for this question

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