A gold ring (k = 65 W/m K) measuring 15 * 10 * 60 cm is exposed to a surface whe

Question

A gold ring (k = 65 W/m K) measuring 15 * 10 * 60 cm is exposed to a surface where h = 11.5 W/m² K. Find the value of biot number

Options:

A . 0.68

B . 0.58

C . 0.48

D . 0.38

Answer: Option C
Answer: (c).0.48

Was this answer helpful ?

Next Question

More Questions on This Topic :

Question 1. Lumped parameter analysis for transient heat conduction is essentially valid for....

Question 2. In the non-dimensional Biot number, the characteristics length is the ratio of....

Question 3. A water line is buried underground in dry soil that has an assumed initial temperature of 4.5 degree Celsius. The pipe m....kg/m³Specific heat = 1843J/kg degreeThermal conductivity = 0.345 W/m degree

Question 4. The temperature and rate of heat conduction are undoubtedly dependent on....

Question 5. Glass spheres of 2 mm radius and at 500 degree Celsius are to be cooled by exposing them to an air stream at 25 degree C....kg/m³ Specific heat = 850 J/kg K Conductivity = 1.5 W/m K

Question 6. Which is true regarding lumped system analysis? (i) Conductive resistance = 0 (ii) Convective resistance = 0 (iii) The....conductivity = 0 (iv) Thermal conductivity = infinity Identify the correct statements

Question 7. What is the criterion for the applicability of lump system analysis?....

Question 8. Which of the following is an example of lump system analysis?....

Question 9. The boundary conditions in case of transient heat conduction in infinite thick solids are (i) t (x = 0) = t i (ii) t (0....t i for T greater than zero Identify the correct statements

Question 10. A large steel ingot, which has been uniformly heated to 750 degree Celsius, is hardened by quenching it in an oil bath t....m²/s. The ingot may be approximated as a flat plate

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

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI

Tabulation - Test Paper 2 Data Interpretation Reasoning & DI

Test Paper 1 Direction Sense Test Reasoning & DI

ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0

GFM Combined 1 Free Revision Test SAIL JO E-0