HomeAE/JE exam EEPractice MCQ electrical branch Practice MCQ electrical branch Education May 05, 2023 0 1➤ In metropolitan areas most commonly employed distribution scheme is Radial schemeInterconnected systemRing scheme Anyone from the above2➤ An efficient method to reduce the steepness of a wave front is.By connecting an inductor between line and earth wireBy connecting a capacitor between line and earth wire By connecting an inductor in series with the lineEither (2) and (3)3➤ A point charge P generates an electric field of circular shape and another point charge Q is rotated along this circle. What is the work done by the electric field on the rotating charge in one complete revolution? zero at all pointspositive at the centernegative at the centerzero if the charge P is at the center and nonzero at other points 4➤ The power factor of induction motor at no load have the value approximately 0.9 lead0.2 lag0.2 lead0.9 lag5➤ Iron loss in a transformer occurs in: CoreInsulating oil RotationWinding6➤ The use of higher flux density in the transformer designIncreases weight per kWNo relation with weight of transformerReduces weight per KVAIncreases the weight per KVA7➤ In the protection of transformer, harmonic restraint is used to guard against Unbalanced operationMagnetizing inrush currentOver voltageLighting8➤ What is the force of attraction between two electric charges of opposite polarity having 1 Coulomb each when placed at 1 m? 4π x 10⁹ Newton8.857 × 10¹² Newton5.54 x 10¹¹Newton9 × 10⁹ Newton9➤ Which of the following has highest permeability?VacuumDiamagnetic materialFerromagnetic materialParamagnetic material10➤ Five capacitors each of 5 µF are connected in series, the equivalent capacitance of the system will be 1 μF5 μF10 μF 25 μF11➤ A 50-Hz, 6-pole turbo generators rated 100 MVA, 14 KV has inertia constant of 15 MJ/MVA. Find stored energy in the rotor at synchronous speed. 150 MJ100 MJ1500 MJ1000 MJ12➤ Among the following, identify the incorrect statement. An oscillator is an amplifier that supplies its own input signalIn-phase feedback is called positive feedback.All oscillators generate sine waveAn oscillator is a circuit that produces AC output always13➤ In which of the following reluctant power is developed TransformerNon salient pole alternator Squirrel cage induction motor Salient pole alternator14➤ What happens when alternating current passes through a conductor? Portion of conductor near the surface carries less current as compared to the coreEntire current passes through the core of the conductorIt remains uniformly distributed throughout the section of conductorPortion of conductor near the surface carries more current as compared to the core15➤ The early effect in BJT is related to Avalanche breakdownBase narrowing Thermal runaway Zener breakdown 16➤ The motor used on a small lathe is usually 3-Phase Synchronous MotorSingle-phase capacitor run Motor D.C shunt MotorUniversal Motor17➤ To which of the following power plants are the terms 'fire point' and 'flash point' related?. Nuclear power plantDiesel power plantSolar Power PlantHydroelectric power plant 18➤ To measure the resistance of about 8 0hm which instrument should be used? Wheatstone's bridgeWattmeterMeggerKelvin's double bridge19➤ A limiter circuit is also known as a:chopper circuitclamp circuitChopping circuitClipper circuit20➤ Lumens can be calculated as Candle power x Solid angle Brightness x normal angle Candle power x normal angleFilament power x Solid angle 21➤ What is the condition for reciprocity and symmetry in Y- parameter representation? Y21=Y11 and Y22=Y21Y21=Y12 and Y11=Y22Both a and bNone22➤ Superposition theorem is applicable for:Linear and lateral network Linear and bilateral networks Non linear and lateral network Non Linear and bilateral networks SubmitYour score is Tags AE/JE exam EE Newer Older