Online TestThyristor Gating Circuits Objective Questions Thyristor Gating Circuits Objective Questions Power Electronics Objective Questions & Answers 0% RB1 = 3 kΩ & RB2 = 6 kΩ. Find the intrinsic stand-off ratio (η) of the UJT 2/3 9 1/3 3 Correct!Wrong!- Continue >> The improved version of the UJT oscillator triggering circuit is the rc triggering ramp triggering ramp & pedal triggering cosine-pulse triggering Correct!Wrong!- Continue >> In the thyristor gating circuit, the supply to the pulse amplifier is provided by the isolation transformer zcd control signal generator synchronizing transformer Correct!Wrong!- Continue >> In the thyristor gating circuit, the ZCD is used to amplify the voltage used to step-down the voltage produce a train of pulses convert AC input the ramp voltage Correct!Wrong!- Continue >> If the RC firing circuit used for firing an SCR is to be used to fire a TRIAC then the diode should be replaced by a diac the capacitor should be removed the diode should be replaced by a bjt the diode should be shorted using a resistor Correct!Wrong!- Continue >> The decaying factor in the wave shape of the output pulses from the pulse transformer is its inductance transformer ratio capacitance resistance Correct!Wrong!- Continue >> The firing-angle delay is directly proportional to the control signal voltage inversely proportional to the control signal voltage inversely proportional to the synchronizing transformer voltage directly proportional to the synchronizing transformer voltage Correct!Wrong!- Continue >> The pulse gating is not suitable of It is suitable of every type of load RL loads R loads RC loads Correct!Wrong!- Continue >> In case of a cosine firing scheme, __________ is used to get a cosine wave a differentiator circuit ic 555 an integrator circuit a comparator Correct!Wrong!- Continue >> If the gating circuits generator negative pulses, then those can be removed by using zener diodes clampers clippers schmit triggers Correct!Wrong!- Continue >> Share the quiz to show your results ! Facebook Facebook Just tell us who you are to view your results ! Show my results >> Gating Circuits I got %%score%% of %%total%% right ↺ PLAY AGAIN ! Share With Your Friends Facebook Twitter LinkedIn Pinterest Email WhatsApp
