A canal was designed for a full supply discharge of 60 cumec. The average supply discharge in the canal is 40 cumec. The capacity factor of the canal is:

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  1. 6.0
  2. 0.67
  3. 0.45
  4. 4.00

Answer (Detailed Solution Below)

Option 2 : 0.67
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Concept:

Capacity Factor:

a) The capacity factor of a canal is the duty based on the discharge at the canal headworks.

b) The capacity factor is defined as the ratio of mean supply discharge in a canal during a period to its design full capacity. 

Capacity Factor of the canal = \(\frac{Average \ supply \ discharge}{Full \ supply \ discharge}\)

Calculation:

Given Data:

Full supply discharge = 60 cumec

Average supply discharge = 40 cumec

Capacity Factor of the canal = \(\frac{Average \ supply \ discharge}{Full \ supply \ discharge}\)

Capacity Factor of the canal = 40/60

Capacity Factor of the canal = 0.666

Capacity Factor of the canal = 0.67

Additional Information
Time Factor:
It is the ratio of the number of days the canal actually runs during a watering period to the total number of days of the watering period.

Outlet Discharge Factor: The outlet discharge factor is the duty of water of a crop at the outlet of the canal.

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