Online TestAC Voltage Controllers Objective Questions – 1 AC Voltage Controllers Objective Questions Power Electronics Objective Questions & Answers 0% In AC voltage controllers the variable dc with variable frequency is obtained variable dc with fixed frequency is obtained variable ac with variable frequency is obtained variable ac with fixed frequency is obtained Correct! Wrong! - Continue >> In the principle of phase control control cannot be achieved control is achieved by adjusting the firing angle of the devices the load is on for some cycles and off for some cycles control is achieved by adjusting the number of on off cycles Correct! Wrong! - Continue >> The AC voltage controllers are used in __________ applications. power generation electric heating conveyor belt motion power transmission Correct! Wrong! - Continue >> AC voltage controllers convert variable ac to variable dc fixed ac to fixed dc variable ac to fixed ac fixed ac to variable ac Correct! Wrong! - Continue >> The below given controller circuit is a none of the mentioned full wave controller half wave controller will depend upon the firing angle Correct! Wrong! - Continue >> Earlier then the semiconductor technology, ___________ devices were used for voltage control applications. cycloconverters tap changing transformer vacuum tubes induction machine Correct! Wrong! - Continue >> In the below given voltage controller circuit none of the mentioned the negative half cycle at the load is same as the supply Vs the positive half cycle at the load is same as the supply Vs the positive and negative half cycles at the load are identical to the supply Correct! Wrong! - Continue >> The below shown controller circuit is a will depend upon the firing angle half wave controller full wave controller none of the mentioned Correct! Wrong! - Continue >> In the below given voltage controller circuit only the positive cycle can be controlled none of the mentioned both the cycles can be controlled only the negative cycle can be controlled Correct! Wrong! - Continue >> A single-phase half wave voltage controller consists of one SCR is parallel with one diode two SCRs in anti parallel two SCRs in parallel one SCR is anti parallel with one diode 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 >> AC Voltage Controllers-1 I got %%score%% of %%total%% right ↺ PLAY AGAIN ! Share With Your Friends Facebook Twitter LinkedIn Pinterest Email WhatsApp