HomeElectrical MCQ for AE JEMix Electrical MCQ Mix Electrical MCQ Education March 15, 2023 0 1➤ In single phase full wave controlled bridge rectifier, minimum output voltage and maximum output voltage are obtained at which conduction angles?180°,180° 0°, 180°180°,0°0°,0°2➤ If load torque Varies with sqaure of speed and terminal volatage of DC shunt motor is half then speedWill be halvedWill be double Remains constantBecomes triple3➤ Which of the following digital devices required an external refresh circuit?DRAMFlash memoryEEPROMSRAM4➤ The most economic load on an underground cable isEqual to surge impedance loadingGreater than its surge impedance loading Less than surge impedance loading All of these5➤ A low pass circuit with large time constant can be used asDiffrentiatorAmplifier AlternatorIntegrator 6➤ The main drawback of JFET is it's Higher input impedance Lower gainLower input impedance Higher noise7➤ What type of earthing is found in 11 KV substationPlate typePipe typeNone of theseStrip type8➤ The advantage of double squirrel cage induction motor over single cage rotor is that it'sStarting current is lowerPower factor is higherSlip is largerEfficiency is higher9➤ Symmetrical breaking capacity of circuit breaker isEqual to asymetrical breaking capacityLess than asymetrical breaking capacityNot related Greater than asymetrical breaking capacity10➤ Transistor acts as an amplifier in which of following area of operation?Barrier areaSaturation regionActive areaCutoff region11➤ HRC fuse provides best protection against Open circuit OverloadReverse currentShort circuit12➤ The main advantage of active filter is that it can be realised without usingInductorCapacitorTransistorResistor13➤ The identification of fault location in an HV cable is done byLife testImpulse testPartial discharge scanning testNone of these14➤ The purpose of interconnector used in ring main system isTo increase voltage dropTo increase reliability To reduce voltage drop All of these15➤ In DC chopper per unit ripple is maximum when duty cycle D is0.51Less than 0.5All of these16➤ Which is not related to tachometer?Rotation speed of shaftFour strokeRevolution counterRPM gauge 17➤ Which model of transmission line has the lowest magnitude of A?Nominal T modelSending end capacitor modelReceiving end capacitor modelAll of these18➤ What is function of turbine in hydro power plant?Produce electrical powerProduce hydro powerProduce mechanical powerProduce heat power19➤ The measurement of resistance by carry foster bridge no error is introduced due toConnecting leadsAll of these Thermoelectric emfsContact resistance 20➤ At what level of current flow during electric shock death is possible50 to 100mA1 to 8 mA10 to 20mA20 to 50 mA21➤ What is other name of unit impulse function?Direct delta functionArea function Dirac delta function Unit function 22➤ Self reactance of coil can be measured usinfSlide wire potentiometer Brooks deflection potentiometer Vernier potentiometer Polar type potentiometer 23➤ For both overexcited and underexcited synchronous motor when load is increased p.f tends to becomeUnityDecrease leadingDecrease laggingZero24➤ The normal voltage for dielectric heating is1500 v30KV15 KV33 KV25➤ Which of following is not addressing modes in 8085 up?Direct addressing modesIndirect addressing modesregister addressing modes None of these SubmitYour score is Tags Electrical MCQ for AE JE Newer Older