# Applications of Wheatstone Bridge

This set of Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Applications of Wheatstone Bridge”.

1. Wheatstone bridge is a __________
a) a.c. bridge
b) d.c. bridge
c) high voltage bridge
d) power dissipation bridge

2. Wheatstone bridge is used to measure resistance in the range of ________
a) 1Ω to a few megaohms
b) 10kΩ to a few megaohms
c) 100MΩ to a few gegaohms
d) 100Ω to a few teraohms

3. Wheatstone bridge is used to measure the d.c. resistance of various types of wires for _________
a) determining their effective resistance
b) computing the power dissipation
c) quality control of wire
d) maintaining a source of constant e.m.f

4. Telephone companies make use of the Wheatstone bridge for _________
a) measuring the telephone resistance
b) computing the line strength
c) maintaining dialtone
d) locating the cable faults

5. The types of faults in a telephone line are ________
a) line to line or line to ground
b) triple line to line or line to ground
c) open circuit and short circuit
d) symmetrical and unsymmetrical

6. How can a Wheatstone bridge be used for the measurement of physical parameters?
a) in conjunction with a rectifier
b) along with an op amp
c) by connecting it to a thermistor
d) by making use of a transducer

7. By using the variations on a Wheatstone bridge we can _________
a) measure quantities such as voltage, current and power
b) measure high resistance values
c) measure quantities such as complex power
d) measure quantities such as capacitance, inductance and impedance

8. One of the simplest applications of a Wheatstone bridge is ________
a) voltage measurement
b) current measurement
c) light measurement
d) power measurement

9. Thermal compensation can be provided in a Wheatstone bridge by ________
a) using more than one resistive sensor
b) making use of a heat sink
c) using cooling fans
d) immersing the circuit into a liquid