Two large diffuse gray parallel plates, separated by a small distance, have sur

Sail E0 Webinar

Question

Two large diffuse gray parallel plates, separated by a small distance, have surface temperatures of 400 K and 300 K. If the emissivities of the surfaces are 0.8 and the Stefan-Boltzmann constant is 5.67 * 10-8W/m2K4, the net radiation heat exchange rate in kW/m2 between the two plates is

Options:

A . 0.66

B . 0.79

C . 0.99

D . 3.96

Answer: Option A

-NA-

Was this answer helpful ?

Next Question

Submit Solution

More Questions on This Topic :

Question 1. The probability that a student knows the correct answer to a multiple choice question is 2/3. If the student does not k....conditional probability that the student knows the correct answer is

Question 2. The solution to the differential equation d2u/dx2 - k du/dx = 0 where k is a constant, subjected to the boundary condit....boundary conditions u(0) = 0 and u(L) = U, is

Question 3. The pressure, temperature and velocity of air flowing in a pipe are 5 bar, 500 K and 50 m/s, respectively. The specifi....the available energy in kJ/kg of the air stream is

Question 4. In abrasive jet machining, as the distance between the nozzle tip and the work surface increases, the material removal ....tip and the work surface increases, the material removal rate

Question 5. Oil flows through a 200 mm diameter horizontal cast iron pipe (friction factor, f = 0.0225) of length 500 m. The volume....m) due to friction is (assume g = 9.81 m/s2)

Question 6. During normalizing process of steel, the specimen is heated ....

Question 7. Match the following metal forming processes with their associated stresses in the workpiece.Metal forming process .... R. Tensile and compressive4. Deep Drawing S. Compressive

Question 8. Air enters an adiabatic nozzle at 300 kPa, 500 K with a velocity of 10 m/s. It leaves the nozzle at 100 kPa with a velo....1008 J/kg.K.The exit area of the nozzle in cm2 is

Question 9. Air enters an adiabatic nozzle at 300 kPa, 500 K with a velocity of 10 m/s. It leaves the nozzle at 100 kPa with a velo....Cp is 1008 J/kg.K.The exit temperature of the air is

Question 10. The cost function for a product in a firm is given by 5q2, where q is the amount of production. The firm can sell the p....by the firm such that the profit is maximized is

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

GPOE / GPA Combined 1 Free Mock Test SAIL JO E-0 2024

Chapter 3.1 : INTRODUCTION Chapter 3 : Sinter Plant SAIL E0 - GPOE/GPA 2024

Chapter 2.3 : COAL HANDLING PLANT - Set 1 Chapter 2 : Coke Ovens and Coal Chemicals SAIL E0 - GPOE/GPA 2024

Chapter 1.1 : INTRODUCTION Chapter 1 : Raw Material Handling Plant SAIL E0 - GPOE/GPA 2024

DSP Combined 1 Free Revision Test SAIL JO E-0