In a co-current double pipe heat exchanger used for condensing saturated steam over the inner tube, if the entrance and exit conditions of the coolant are interchanged, then the rate of condensation will

Heat Transfer
In a co-current double pipe heat exchanger used for condensing saturated steam over the inner tube, if the entrance and exit conditions of the coolant are interchanged, then the rate of condensation will

Decrease

Remain unchanged

Either increase or decrease; depends on the coolant flow rate

Increase

Decrease

Remain unchanged

Either increase or decrease; depends on the coolant flow rate

Increase

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid

none of the listed here

for fluids in laminar flow

when Grashhoff number is very important

for fluids in tubulent flow

none of the listed here

for fluids in laminar flow

when Grashhoff number is very important

for fluids in tubulent flow

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
In a shell and tube heat exchanger, square pitch compared to triangular pitch

None of these

Gives a higher shell side pressure drop

Gives a lower shell side pressure drop

Can pack more surface area into a shell of given diameter

None of these

Gives a higher shell side pressure drop

Gives a lower shell side pressure drop

Can pack more surface area into a shell of given diameter

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
What is the steam economy in case of a single effect evaporator system?

>1

< 1

1

0.1

>1

< 1

1

0.1

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
In a shell and tube heat exchanger,

The relationship is not generalised

There is no relationship between temperature drop and resistance

The temperature drop is inversely proportional to the resistance across which the drop occurs

The temperature drops in the two fluids and the wall are proportional to individual resistances

The relationship is not generalised

There is no relationship between temperature drop and resistance

The temperature drop is inversely proportional to the resistance across which the drop occurs

The temperature drops in the two fluids and the wall are proportional to individual resistances

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
The radiation heat flux from a heating element at a temperature of 800°C, in a furnace maintained at 300°C is 8 kW/m². The flux, when the element temperature is increased to 1000°C for the same furnace temperature is

14.6 kW/m²

11.2 kW/m²

16.5 kW/m²

12.0 kW/m²

14.6 kW/m²

11.2 kW/m²

16.5 kW/m²

12.0 kW/m²

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer

Heat Transfer In a co-current double pipe heat exchanger used for condensing saturated steam over the inner tube, if the entrance and exit conditions of the coolant are interchanged, then the rate of condensation will

Heat Transfer Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid

Heat Transfer In a shell and tube heat exchanger, square pitch compared to triangular pitch

Heat Transfer What is the steam economy in case of a single effect evaporator system?

Heat Transfer In a shell and tube heat exchanger,

Heat Transfer The radiation heat flux from a heating element at a temperature of 800°C, in a furnace maintained at 300°C is 8 kW/m². The flux, when the element temperature is increased to 1000°C for the same furnace temperature is

Heat Transfer
In a co-current double pipe heat exchanger used for condensing saturated steam over the inner tube, if the entrance and exit conditions of the coolant are interchanged, then the rate of condensation will

Heat Transfer
Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid

Heat Transfer
In a shell and tube heat exchanger, square pitch compared to triangular pitch

Heat Transfer
What is the steam economy in case of a single effect evaporator system?

Heat Transfer
In a shell and tube heat exchanger,

Heat Transfer
The radiation heat flux from a heating element at a temperature of 800°C, in a furnace maintained at 300°C is 8 kW/m². The flux, when the element temperature is increased to 1000°C for the same furnace temperature is