engineering recuitment BEL Probationary Engineers Mock Test 2025 Thermodynamics First Law of Thermodynamics Steady Flow Energy Equation
Find the efficiency of a pump (rated 400 W) that can lift 500 kg of water by 30 m in 10 minutes. (Use g = 10m/s2)
1
92.00%
2
77.50%
3
84.00%
4
62.50%