DC Motors In which of the following tests only one motor is required? Hopkinson's test Swinburne's test Brake test Field's test Hopkinson's test Swinburne's test Brake test Field's test ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor if the back emf is absent Motor will run at very high speed Motor will run at very slow speed Motor will not run at all Motor will burn Motor will run at very high speed Motor will run at very slow speed Motor will not run at all Motor will burn ANSWER DOWNLOAD EXAMIANS APP
DC Motors The starting resistance of a DC motor is generally Around 500 Ω 1000 Ω Low Infinitely large Around 500 Ω 1000 Ω Low Infinitely large ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following law can be used to determine the direction of rotation of dc motor? Faraday's law Lenz's law Fleming's left hand rule Coloumb's law Faraday's law Lenz's law Fleming's left hand rule Coloumb's law ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which method of braking is generally used in elevators? Rheostat braking Plugging None of these Regenerative braking Rheostat braking Plugging None of these Regenerative braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors Small dc motors up to 5 HP usually have 2 poles 4 poles 6 poles 8 poles 2 poles 4 poles 6 poles 8 poles ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS