MASS FLOW RATE OF ONE OF THE FLUIDS IS FAR GREATER OF THESE STATEME...

3. Mass flow rate of one of the fluids is far greater

Of

these

statements:

(a) 1 and 2 are correct

(b) 1 and 3 are correct

(c) 2 and 3 are correct

(d) 1, 2 and 3 are correct

IES-7.

Which one of the following diagrams correctly shows the temperature

distribution for a gas-to-gas counterflow heat exchanger?

[IES-1994; 1997]

IES-8.

Match List-I with List-II and select the correct answer using the codes

given below the lists:

[IES-1995]

List-I

List-II

A. Regenerative heat exchanger

1. Water cooling tower

B. Direct contact heat exchanger

2. Lungstrom air heater

C. Conduction through a cylindrical wall

3. Hyperbolic curve

D. Conduction through a spherical wall

4. Logarithmic curve

Codes:

A

B

C

D

A

B

C

D

(a)

1

4

2

3

(b)

3

1

4

2

(c)

2

1

3

4

(d)

2

1

4

3

IES-9.

Match List-I (Application) with List-II (Type of heat exchanger) and

select the correct answer using the code given below the lists:[IES-2008]

List-I

List-II

A. Gas to liquid

1. Compact

B. Space vehicle

2. Shell and Tube

C. Condenser

3. Finned tube

D. Air pre-heater

4. Regenerative

Codes: A

B

C

D

A

B

C

D

(a)

2

4

3

1

(b)

3

1

2

4

(c)

2

1

3

4

(d)

3

4

2

1

IES-10. Match List-I with List-II and select the correct answer

[IES-1994]

A. Number of transfer units

1. Recuperative type heat exchanger

B.

Periodic flow heat exchanger

2. Regenerator type heat exchanger

Page 65 of 97

C. Chemical additive

3. A measure of the heat exchanger

size

D. Deposition on heat exchanger surface

4. Prolongs drop-wise condensation