Multiple choice questions on Power Generation. Part 11 MCQ#1 Statement: A hydroelectric power plant is supplied from a reservoir having a capacity of 7*106 cubic meters and a head of 220 meters. What is the total available energy if the overall efficiency of the plant is 82% 1.65 * 106 kWh 3.44 * 106 kWh … Read more
Parallel Circuit analysis MCQ Questions. Parallel Circuit analysis MCQ#1 Consider the circuit given below and then answer the questions provided below: Equivalent resistance Example What is equivalent resistance of circuit: 2k ohm 6k ohm 10k ohm 15k ohm Correct answer: 2. 6k ohm Req = 1/(1/R1 + 1/R2) = 1/(1/10 + 1/15) = 6k ohm … Read more
Electrical Engineering MCQ Question on Power Transmission and Distribution Engineering. Charging current in the transmission line is: Introduced due to imperfection of dielectric Associated with capacitance of transmission line Dependent on voltage and frequency All of above Correct answer: 4. All of above Charging current in the transmission line is associated with capacitance of transmission … Read more
HVDC or High voltage Direct Current use direct current for bulk transmission of electric power. Unlike AC (which uses three conductors) it uses two conductors (thus requires less material). HVDC MCQ Questions Pros of HVDC Power Which of the following are pros of HVDC over AC: Absence of Capacitance Absence of inductance Absence of phase … Read more
Electrical Engineering MCQ Questions with brief explanatory answers on the Microprocessors. The oldest commercially produced microprocessor is The oldest commercially produced microprocessor is: Intel 4004 Texas Instruments TMS1000 ARM Atmel AVR32 Correct answer: 1. Intel 4004 Number of Threads meaning in Microprocessor The number of threads indicates: The maximum number of memory channels Basic ordered … Read more
Electrical Engineering multiple choice questions on Delta to Wye conversion. Circuit 1 In circuit above the formula for Rx is defined mathematically: Rx = R1/(R1 + R2 + R3) Rx = R2.R3/(R1) Rx = R2.R3/(R1 + R2 + R3) Rx = R2.R3/(R2 + R3) Correct answer: 3. Rx = R2.R3/(R1 + R2 + R3)
The diversity factor is always: Less than 1 Equal to 1 Greater than 1 None of the above Correct answer: 3. Greater than 1 Diversity factor is defined as ratio of sum of individual maximum demands to maximum demand on power station. Mathematically, Diversity factor = Sum of individual maximum demands/Max demand on the power … Read more
What is Ceiling fan motor named: Synchronous motor Induction motor Stepper Motor Any of above Correct answer: 2. Induction motor The name of motor used in ceiling fan is induction motor.
Electrical Engineering MCQ Question on Induction Motor. Statement: Slip of an induction motor is defined as: s = ( (1-ηslip ) / ηsync) * 100% s = (ηsync / ηslip) * 100% s = (ηslip/ ηsync) * 100% None of the above Correct answer: 3. s = (ηslip/ ηsync) * 100% Slip of an induction … Read more
Ladder diagram MCQ Questions with Answers Behavior of normally-open contact under different bits A normally-open type contact will __________ when its bit is 0 and ________ when its bit is 1: Open, Close Close, Open Open, Open Closed, Close Correct answer: 1. Open, Close Explanation: A normally-open type contact will open when its bit is … Read more