Home / Online Test / Thyristors Questions and Answers – Part 1 Online Test Thyristors Questions and Answers – Part 1 S Bharadwaj ReddyLeave a comment Thyristor Questions and Answers Power Electronics Objective Questions & Answers 0% If the cathode of an SCR is made positive with respect to the anode & no gate current is applied then all the junctions are reversed biased only the middle junction is reversed biased all the junctions are forward biased only the middle junction is forward biased Correct! Wrong! - Continue >> An SCR is a three layer, single junction device four layer, four junction device four layer, three junction device four layer, two junction device Correct! Wrong! - Continue >> Choose the false statement. In SCR the gate is the controlling terminal SCR is a bidirectional device SCR are used for high-power applications SCR is a controlled device Correct! Wrong! - Continue >> For an SCR in the reverse blocking mode, (practically) leakage current flows from cathode to anode leakage current does not flow leakage current flows from gate to anode leakage current flows from anode to cathode Correct! Wrong! - Continue >> Which terminal does not belong to the SCR? Cathode Anode Gate Base Correct! Wrong! - Continue >> In the SCR structure the gate terminal is located in between the anode & cathode terminal near the anode terminal near the cathode terminal none of the mentioned Correct! Wrong! - Continue >> A thyristor (SCR) is a P-N-P-N device P-N device P-N-P device N-P-N device Correct! Wrong! - Continue >> With the anode positive with respect to the cathode & the gate circuit open, the SCR is said to be in the reverse blocking mode forward blocking mode reverse conduction mode forward conduction mode Correct! Wrong! - Continue >> The static V-I curve for the SCR is plotted for Ia vs Va with Ig as a parameter Ig vs Vg with Ia as a parameter Ia (anode current) vs Ig (gate current), Va (anode – cathode voltage) as a parameter Va vs Ig with Ia as a parameter Correct! Wrong! - Continue >> For an SCR in the forward blocking mode (practically) leakage current flows from cathode to anode leakage current flows from anode to cathode leakage current does not flow leakage current flows from gate to anode 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 >> Thyristors-1 I got %%score%% of %%total%% right Share your results Facebook Facebook Twitter Google+ ↺ PLAY AGAIN !
