GATE ME · 2025 · ME
Question 33: Heat Transfer
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Question 33
MENAT1 markNeeds review
During a welding operation, thermal power of 2500 W is incident normally on a metallic surface. As shown in the figure below (figure is NOT to scale), the heated area is circular. Out of the incident power, 85% of the power is absorbed within a circle of radius 5 mm while 65% is absorbed within an inner concentric circle of radius 3 mm. The power density in the shaded area is __________ W m
(rounded off to 2 decimal places). 
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2025ME
GATE ME 2025 · Paper 1
Mechanical Engineering · Original paper archive
- Section
- Mechanical Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 1 mark
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