BASIC ELECTRICAL MCQ

Q.147 The efficiency of a transformer at full load, 0.8 p.f lag is 90%. It efficiency at full load, 0.8 p.f lead will be A. less than 90% B. more than 90% C. 90% D. 80% More questions http://mcqelectrical4u.com/electrical-engineering/electrical-engineering-mcq_09

Q.20 The correct expression of back emf is__ A. Eb = NPфZ/ 60 B. Eb = NPфZ/ 120A C. Eb = NPфZ/ 60A D. Eb = NPфZA/ 60 More questions http://mcqelectrical4u.com/dc-motor-quiz/electrical-machine-quiz_89-dc-motor_02

Q.17 In the circuit the load current is ____ to the power factor. A. directly proportional B. directly proportional to the square of power factor C. inversely proportional D. any of the above More MCQS http://mcqelectrical4u.com/power-factor-improvement-quiz/power-system-quiz_38power-factor-improvement_02

Q.30 In power system, at zero degree with inductive reactance the power transmitted is __ A. maximum B. minimum C. zero D. infinity More MCQS👇🏻 http://mcqelectrical4u.com/author/electricalworld

Q.17 Maximum power is transmitted when the power angle is___ in transmission line. A. 45° B. 0° C. 90° D. 180° More MCQS, pdf etc.... http://mcqelectrical4u.com/supply-system/power-system-mcq_65supply-system_02

Q.181 According to Faraday’s law of electromagnetic induction an emf is induced in a conductor when A. it lies in an electric field B. it cuts the magnetic flux C. it lies in magnetic field D. it moves parallel to magnetic More MCQ, PDF, VIDEOS etc... http://mcqelectrical4u.com/electromagnetism/basic-electrical-engineering-mcq_67_1electromagnetism

Q.77 A teaser transformer, the number of turns are ____ the respective turns on the main transformer. A. 0.866 times B. 0.966 times C. 0.766 D. 2 times More MCQ http://mcqelectrical4u.com/3-phase-transformer-quiz/electrical-machine-quiz_23dc-generator_06

Q.46 If a synchronous motor is operated at no load with over excitation A. it takes current that leads the voltage nearly by 90° B. motor is behave like a capacitor C. motor is called a synchronous capacitor D. all of the above More Questions/Quiz http://mcqelectrical4u.com/3-phase-synchronous-motor-quiz/electrical-machine-quiz_423-phase-synchronous-motor_4

Q.35 In ac circuit the current drops to zero after _     A. every one cycle     B. every two cycles     C. every half cycle     D. none of the above More MCQ, Videos, PDF etc.. http://mcqelectrical4u.com/category/power-system-protection

Q.31 A Synchronous motor takes a leading current when it is __ A. Under excited B. Over excited C. Normal excited D. Any of the above http://mcqelectrical4u.com/power-factor-improvement-quiz/power-system-quiz_39power-factor-improvement_03

Q.132 Which of the following generator is used in Megger? A. Induction generator B. dc generator C. shunt dc generator D. hand driven dc generator More mcqs etc... http://mcqelectrical4u.com/measuring-instruments-quiz/measurement-quiz_09

Q. 5 what is the effect of fringing?     A. the effective cross sectional area of the air gap increased     B. the flux density in the air gap is reduced     C. Both A and B     D. none of the above MORE MCQS, VIDEOS ETC... http://mcqelectrical4u.com/electromagnetism/__trashed-2 GK https://societyofknowledge.blogspot.com/2021/07/national-parks-and-its-establishment08.html

Q. Current is vector quantity or scalar quantity?? More questions, mcqs, pdf, videos etc...👇👇 http://mcqelectrical4u.com/ And https://societyofknowledge.blogspot.com/2021/11/indias-most-popular-temples01.html

Q.5 Electric stress is expressed in _.     A. Ohms/ cm     B. Farad / cm    C. Henry / cm    D. KV/cm Daily updates http://mcqelectrical4u.com/engineering-materials/basic-electrical-engineering-mcq_43engineering-materials

Q.303 The surge impedance loading of the line will be_____ if the length of the line is doubled. A. doubled B. four times C. remains same D. became half More IMPORTANT MCQS http://mcqelectrical4u.com/electrical-engineering/electrical-engineering-mcq_19

Q.149 A Mho relay is A. voltage restrained directional relay B. directional restrained over voltage relay C. voltage controlled over current relay D. directional restrained over current relay More MCQS, PDF etc.. http://mcqelectrical4u.com/electrical-engineering/electrical-engineering-mcq_09

Q.59 In a transmission line if booster transformers are be used, preferred location will be A. At the receiving end B. At the sending end C. At the intermediate point D. anywhere in the line More MCQS... http://mcqelectrical4u.com/electrical-engineering/electrical-engineering-mcq_03

Q.102 In a power plant, a reserve generating capacity which is not in service but is in operation is known as A. hot reserve B. Spinning reserve C. Cold reserve D. firm reserve More MCQs, PDF etc... http://mcqelectrical4u.com/electrical-engineering/electrical-engineering-mcq_06 General Knowledge https://societyofknowledge.blogspot.com/2021/11/indias-most-popular-temples01.html

Q.507 Slip rings of a phase wound induction motor are made of A. Wood B. Cast Iron C. Steel D. Copper More MCQs http://mcqelectrical4u.com/category/electrical-engineering General knowledge https://societyofknowledge.blogspot.com/2021/11/indias-most-popular-temples01.html

602. If the supply frequency to the transformer is increased, the iron loss A. Will increase B. Will decrease C. Will not change D. May reach zero More MCQ, quiz etc.. http://mcqelectrical4u.com/electrical-engineering/electrical-engineering-mcq_38 GK https://societyofknowledge.blogspot.com/