Demand Factor MCQ Quiz in বাংলা - Objective Question with Answer for Demand Factor - বিনামূল্যে ডাউনলোড করুন [PDF]
Last updated on Mar 18, 2025
Latest Demand Factor MCQ Objective Questions
Top Demand Factor MCQ Objective Questions
Demand Factor Question 1:
The definition of demand factor is:
Answer (Detailed Solution Below)
Demand Factor Question 1 Detailed Solution
Demand factor: It is defined as the ratio of maximum demand on the power station to its connected load.
Demand factor = Maximum demand / Total connected load
The value of the demand factor is usually less than 1. It is because maximum demand is always less than the connected load. The knowledge of the demand factor is vital in determining the capacity of the plant equipment.Demand Factor Question 2:
A domestic lighting installation has fifteen 60 W lamps operated as follows:
5 lamps from 6 pm to 8 pm
10 lamps from 8 pm to 10 pm
6 lamps from 10 pm to 12 pm
Determine connected load, maximum demand and demand factor respectively.Answer (Detailed Solution Below)
Demand Factor Question 2 Detailed Solution
Concept:
Demand factor:
It is the ratio of maximum demand on the power station to its connected load i.e.,
Demand factor = (maximum demand)/(connected load)
The value of the demand factor is usually less than 1. It is expected because the maximum demand on the power station is generally less than the connected load.
Calculation:
Given,
15 lamps have 60 W each
Operated as follows
5 lamps for 2hrs
10 lamps for 2hrs
6 lamps for 2hrs
Total connected load = 15 × 60 W = 900 W.
Daily energy consumption = ( 5×2 + 10×2 + 6×2) × 60 W = 2520 Wh.
Maximum load = 10 × 60 W = 600 W (during 8 pm – 10 pm)
Demand factor\(\; = \frac{{600}}{{900}} \times 100 = 66.667\% \)