Instrumentation Transducers

Self Balancing Bridges

Question 1
Marks : +2 | -2
Pass Ratio : 100%
Which of the following represents DC Bridge?
Used to measure impedance
AC supply for excitation
Wein bridge
None of the mentioned
Explanation:
Dc Bridge will be excited from DC supply and is used for measuring resistance.
Question 2
Marks : +2 | -2
Pass Ratio : 100%
Which of the following bridge can function as voltage to the current converter?
Carey-foster bridge
Kelvin Bridge
Fontana Bridge
H-bridge
Explanation:
Fontana Bridge is a type of bridge that implements a wide frequency band voltage to current converter.
Question 3
Marks : +2 | -2
Pass Ratio : 100%
Which of the following bridge can be used for measuring very low quality factor?
Hay’s Bridge
Maxwell Bridge
Anderson Bridge
None of the mentioned
Explanation:
Anderson Bridge is used in very low quality factor coils and Hay Bridge, Maxwell Bridge are used for medium value of the quality factor.
Question 4
Marks : +2 | -2
Pass Ratio : 100%
Which of the following represents the arrangement of Wheatstone bridge?
Potentiometer
Weinbridge
Schering bridge
None of the mentioned
Explanation:
Weinbridge is an AC application of Wheatstone bridge.
Question 5
Marks : +2 | -2
Pass Ratio : 100%
Wheatstone bridge is used to measure ________________
Resistance
Inductance
Capacitance
All of the mentioned
Explanation:
Wheatstone bridge on a different arrangement can be used for measuring different parameters like resistance, inductance and capacitance.
Question 6
Marks : +2 | -2
Pass Ratio : 100%
Which of the following is not an AC bridge?
Kelvin bridge
Maxwell bridge
Hay bridge
Schering bridge
Explanation:
Kelvin Bridge is a DC bridge used for measuring resistance.
Question 7
Marks : +2 | -2
Pass Ratio : 100%
Anderson bridge is an AC bridge.
True
False
Explanation:
Anderson Bridge is an AC bridge which is excited by AC supply.
Question 8
Marks : +2 | -2
Pass Ratio : 100%
Maxwell Bridge is used for measuring_______________
Low quality coil (Q<1)
Medium quality coil (1<Q<10)
High quality coil (Q>10)
All quality coil (any value of Q)
Explanation:
Maxwell Bridge is well suited for measurement in medium quality coils.
Question 9
Marks : +2 | -2
Pass Ratio : 100%
Why Kelvin Bridge is known as a double bridge?
Two power supplies
Two unknowns
Two ratio arms
None of the mentioned
Explanation:
Two ratio arms are connected to galvanometers to remove the effect of connecting lead of electrical resistance.
Question 10
Marks : +2 | -2
Pass Ratio : 100%
Which of the following bridge can be used to measure very low resistance?
Wein Bridge
Schering Bridge
Maxwell Bridge
Carey-foster bridge
Explanation:
Carey foster bridge is used for measuring low resistance as well as the difference between two large resistances.