1. Electric trains are of two types. A. True B. False 2. The shape of pantograph collector is _________________ A. Square B. Pentagon C. Circle D. Hexagon 3. There are typically three types of pantograph. A. True B. False 4. Full form of EMU is ____________ A. Electronics Multiple Unit B. Electrical …
Solar and Battery Powered Drives MCQ 1. A solar cell converts light energy into __________ A. Electrical energy B. Thermal energy C. Sound energy D. Heat energy 2. There are three types of solar cells. A. True B. False 3. Series and parallel combination of the solar cell is known as _________ …
1. When was the first electric car invented? A. 1830 B. 1985 C. 1832 D. 1945 2. The moving coil instrument measures the ___________ of the signal. A. Average value B. R.M.S value C. Zero value D. Half value 3. The PMMC instrument measures the average value of the signal. A. True B. …
1. The output power of the centrifugal pump is proportional to the _________ of the speed. A. Square B. Cube C. Square-root D. Cube-root 2. There are four types of Water pumps. A. True B. False 3. The output of the Solar panel is DC. A. True B. False 4. Which of …
1. A solar cell converts light energy into __________ A. Electrical energy B. Thermal energy C. Sound energy D. Heat energy 2. There are three types of solar cells. A. True B. False 3. Series and parallel combination of the solar cell is known as _________ A. Solar array B. Solar light C. …
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Solid-State Switching Circuit MCQ 1. In a Half-wave controlled rectifier calculate the average value of the voltage if the supply is 13sin(25t) and the firing angle is 13°. A. 4.08 V B. 4.15 V C. 3.46 V D. 5.48 V 2. Calculate the extinction angle as a purely inductive load if the firing …
1. The use of the inductor in CSI is to make the source current constant. A. True B. False 2. The output voltage of CSI depends upon the load. A. True B. False 3. Which one of the elements is used to make R load commutating? A. Inductor B. Capacitor C. Resistor D. …
1. Rectifiers are used to convert DC power into variable AC power. A. True B. False 2. Short circuit problem is severe in case of current source inverter. A. True B. False 3. Full form of KERS is ___________ A. The kinetic energy recovery system B. The kinetic ever recovery system C. Kin …
1. Inverters are used to convert DC power into variable AC power. A. True B. False 2. Short circuit problem is severe in case of Voltage source inverter. A. True B. False 3. Switches used in VSI are ___________ A. Unipolar & Unidirectional B. Bipolar & Bidirectional C. Unipolar & Bidirectional D. Unidirectional …
1. Inverters are used to convert DC power into variable AC power. A. True B. False 2. Short circuit problem is severe in case of Voltage source inverter. A. True B. False 3. Switches used in VSI are ___________ A. Unipolar & Unidirectional B. Bipolar & Bidirectional C. Unipolar & Bidirectional D. Unidirectional …
