Q22
A shearer is deployed in a mine where the specific energy consumption for cutting coal is 800 kJ/m3. The specific gravity of coal is 1.2. If the machine produces 700 te/h, the electrical power consumption in kW of the shearer at 65% motor efficiency is
A.
149.4
B.
199.4
AnswerC.
219.4
D.
239.4
Answer: Option B
Solution
Answer: Option B
No explanation is given for this question Let's Discuss on Board