Answer: uve earned 5 b point for helping us
Explanation:well know I'm not helping u
Answer:
Power required to drive the escalator shall be equal to the rate at which the energies of the persons is increased.

As we infer from the above equation If the velocity of the escalator is doubled then the Power required will also be doubled and become 31.215kW
Answer:
Detailed solution is given and calculations are done
Answer:
(A) Adding Nitrogen
Explanation:
R11 or R123 are flammable substance under certain conditions when mixed with Oxygen, adding Nitrogen is a safety procedure used in displacing any R11 or R123 which are considered as hazardous when mixed with Oxygen.
Answer:
The rate of irreversible loss will be "55.22 MW".
Explanation:
The given values are:
Elevation,
h = 120 m
Flow of water,
Q = 100 m³/s
Efficiency,
= 80%
i.e,
= 0.8
Efficiency turbine,
= 50 MW
Now,
Without any loss,
The power generated by turbine will be:
⇒ 
On substituting the values, we get
⇒ 
⇒ 
Power generated in actual will be:
= 
= 
Hence,
Throughout the piping system,
The rate of irreversible loss is:
= 
= 
= 