Power Electronics Mcqs

Q.  DIAC are specifically designed to trigger______________?

a. TRIAC
b. SCR
c. GTO
d. Only (a) and (b)


ANSWER: See Answer
 
No explanation is available for this question!
TasDia Network - Mcqs | Signature | Lyrics
MCQs:  An ideal switch is___________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  In ac – dc conversion, when the switch is closed then the sum of voltages around the loop is____________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  If a shunt motor is started with its field winding open then?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  A rectifier with an external low pass filter is an example of______________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  The power demand can be estimated approximately by___________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  4 thyristors rated 200 V in series. The operating voltage of the string is 600 V. Derating factor of the string is_____________________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Unipolar modulation is generally used in____________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Dynamic equalizing circuit is used for________________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  A string of n parallel SCRs is operated at 72 KA, the rating of each SCR is 1 KA. If derating factor of the string is 0.1. value of n will be___________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  60 thyrsistors are connected in series and parallel to form a 10 KV and 5.5 KA switch. Each thyristor is rated for 1.2 KV, 1 KA. The no. of parallel path are 6. The efficiency of the switch is______________________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Maximum di / dt in a SCR is________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  A thyristor string is made of a no. of SCR connected in series and parallel. The string have volume and current of 11 KV and 4 KA. The voltage and current rating of available SCRs are 1800 V and 1000 A. For a string efficiency of 90 % let the number of SCRs in series and parallel are a and b respectively. Then the value of a and b will be_____________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  For series connected SCR’s dynamic equalising circuit consists of___________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  By which one of the following we can measure the reliability of a string_____________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Anode current in an SCR consists of____________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  To meet high current demand we use SCRs in______________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Dynamic equalising circuit is useful____________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  SCRs are used in series to meet_______________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Which following is a two terminal three layer device?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts
MCQs:  ON state voltage drop across SCR lie between the range_____________?
Category: Electrical Engineering Questions,   Published by: T-Code Scripts