Question 11 : C filters are suitable for ___________ load resistances and L filters are suitable for _____________ load resistances.
1. low, low
2. high, high
3. high, low
4. low, high
View Answer   Discuss with Members

Question 12 : An LC filter will have ripple factor value___________ (For the same value of L & C)
1. lower than that obtained by L filter but higher than that obtained by C filter
2. lower than that obtained by C filter but higher than that obtained by L filter
3. lower than that obtained by either L or C filter
4. higher than that obtained by either L or C filter
View Answer   Discuss with Members

Question 13 : In case of an L filter connected with a rectifier in series with the load, it offers ________ impedance to ac whereas _______ resistance to dc respectively.
1. high, high
2. high, low
3. low, high
4. low, low
View Answer   Discuss with Members

Question 14 : In a three-phase half wave rectifier usually, the primary side of the transformer is delta connected because
1. it has no neutral connection
2. we can get greater output voltage
3. it provides a path for the triplen harmonics
4. it provides better temperature stability
View Answer   Discuss with Members

Question 15 : A capacitor filter or C filter can be used in a rectifier by connecting it
1. in parallel with the load
2. in series with the load
3. in parallel with the supply
4. in series with the supply
View Answer   Discuss with Members

Question 16 : In case of a C filter, if R (load resistance) is increased
1. ripple factor is reduced
2. ripple factor is increased
3. ripple factor is not affected
4. increases noise in the circuit
View Answer   Discuss with Members

Question 17 : In a single-phase full wave rectifier ___________ order harmonics are the most dominant
1. first
2. second
3. third
4. fourth
View Answer   Discuss with Members

Question 18 : In a three-phase half wave diode rectifier, if Vmp is the maximum phase voltage, then the output voltage on a R load varies from
1. 0 to Vmp
2. 0.5 Vmp to Vmp
3. Vmp to 3Vmp
4. -Vmp to Vmp
View Answer   Discuss with Members

Question 19 : A diode rectifier with a C filter will have average output voltage _______ than that obtained by a rectifier without the C filter.
1. lower than
2. higher than
3. same as
4. none of the mentioned
View Answer   Discuss with Members

Question 20 : An inductor filter connected in series with a resistive load provides a
1. smoothing of the output voltage waveform
2. smoothing of the input voltage waveform
3. smoothing of the output current waveform
4. smoothing of the input current waveform
View Answer   Discuss with Members