Bridges MCQs | AC Bridges MCQs

1. Maxwell inductance bridge is used for coils of Q value

1. less than 1
2. less than 10
3. greater than 1 and less than 10
4. more than 100

2. In an Anderson bridge, the unknown inductance is measured in term of known

1. resistance
2. capacitance
3. inductance and resistance
4. resistance and capacitance

3. Hay’s bridge is suitable for the measurement of which one of the following?

1. inductance with Q< 10
2. Inductance with Q>10
3. Capacitance with high dissipating factors
4. Capacitors with low dissipating factors

4. Inductance is measured by which one of the following?

1. Wien bridge
2. Schering bridge
3. Maxwell bridge
4. Owen bridge

5. An imperfect capacitor is represented by a capacitance C in parallel with a resistance R. The value of the dissipation factor tanδ is

1. ωCR
2. ω²CR
3. 1/ω²CR
4. 1/ωCR

6. Which bridge is used to determine frequency?

1. Anderson bridge
2. De Sauty bridge
3. Wien bridge
4. Campbell bridge

7. Which one of the following is a frequency sensitive bridge?

1. Maxwell bridge
2. De Sauty bridge
3. Wien bridge
4. Schering bridge

8. Schering bridge can be used to measure which one of the following?

1. Q of a coil
2. Inductance and its Q value
3. very small resistance
4. capacitance and its power factor

9. Dissipation factor, tanδ, of a capacity measured by which bridge?

1. Anderson bridge
2. Hay bridge
3. Schering bridge
4. Wien bridge

10. The dielectric loss of a capacitor can be measured by which one of the following?

1. Maxwell bridge
2. De Sauty bridge
3. Wien bridge
4. Schering bridge

11. D.C. bridges are used for

1. measurement of resistance
2. measurement of capacitance
3. measurement of current
4. measurement of inductance

12. In the simplest form, an AC bridge consists of

1. arms, source and a detector
2. arms and source
3. source and detector
4. arms and detector

13. Relationship at balance condition between the component values of the four arms of a bridge is known as

1. full load condition
2. open circuit condition
3. short circuit condition
4. balancing condition

14. AC bridge is an outcome of 

1. Kelvin bridge
2. Megger
3. De Sauty bridge
4. Wheatstone bridge

15. Vibration galvanometers are used for

1. very high frequency
2. very low frequency
3. low audio frequency
4. high audio frequency