Important MCQ on Power systems - 9
1. When a pumped storage power plant is operated in conjunction with a steam power plant a. The operating cost of the steam plant becomes optimum b. Load factor of the steam plant is increased c. Chances of the tripping of the system decreases because of the use of two heterogeneous types of plants d. Operation of the storage plant in the pumping mode during the low-load period improves the steam-plant stability 2. Usage of materials in components of a nuclear reactor: Graphite is used in moderators; Boron is used in control rods ; Sodium is used as a coolant ; Concrete is used as a shield 3. A 100km long transmission line is loaded at 110kV. If the loss of line is 15MW and the load is 150MVA, t...