MCQs

The thermal efficiency of Steam Power Plant is about: 25 – 28% 37 – 41% 63 – 67% 84 – 87% Correct answer: 1. 25 – 28%

The cheapest power plant in terms of maintenance and operations is: Nuclear power plant Diesel power plant Steam power plant Hydroelectric power plant Correct answer: 4. Hydroelectric power plant A hydroelectric power plant is the cheapest power plant in terms of maintenance and operations. Also see MCQ on: Nuclear power plant MCQ Diesel Power Station … Read more

Working of Nuclear Power Plant is Based on which process: Fission Fusion Both of these None of these Correct answer: 1. Fission The Working of Nuclear Power Plant is Based on the Fission process. Nuclear fission is the phenomenon in which a large nucleus splits into two smaller nuclei while releasing a huge amount of … Read more

The Peak Electrical Power Demand which hours: 8 A.M to 1 P.M 1 P.M to 6 P.M 6 A.M to 11 P.M 11 P.M to 5 A.M Correct answer: 3. 6 A.M to 11 P.M The peak electric demand occurs from 6 A.M to 11 P.M

Load Factor, Maximum Demand and Average Load are mathematically related by formula: Load factor = Average Load – Maximum demand Load factor = Average Load + Maximum demand Load factor = Average Load/Maximum demand Load factor = Maximum demand/Average load Corret answer: 3. Load factor = Average Load/Maximum demand

The correct formula for Reserve Capacity in Power Plants: Reserve capacity = Max demand – Plant Capacity Reserve capacity = Max demand + Plant Capacity Reserve capacity = Plant capacity – Max demand Reserve capacity = Max demand – Average demand Correct answer: 3. Reserve capacity = Plant capacity – Max demand Reserve capacity is … Read more

The Single Phase Motor which has the lowest Speed: Shaded pole Universal Hysteresis All have equal speed Correct answer: 1. Shaded pole Of all the mentioned motors the shaded pole motor has the lowest speed.

In Single phase Induction motor the main winding and starting winding are connected in _____________ to the supply: Series Parallel Series-Parallel None of these Correct answer: 2. Parallel In Single phase Induction motor the main winding and starting winding are connected in parallel to the supply

The Resistance Split-phase induction motor is recommended for: Low inertia loads High inertia loads Very high inertia loads None of these Correct answer: 1. Low inertia loads Explanation: The Resistance Split-phase induction motor is recommended for low inertia loads

The capacity of the Power Plant is always kept ______________ percent higher than the maximum demand: 5 – 10% 15 – 20% 40-50% 50 – 60% Correct answer: 15 – 20% Explanation: The capacity of the Power Plant is always kept 15-20% higher than the maximum demand