# Un-bonded strain gauges are _____.

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Un-bonded strain gauges are exclusively used for transducer applications.

## Related questions

Draw and explain the operation of pressure transducer having diaphragm as a primary sensor and four strain gauges as secondary sensors.

Explain in brief the working principle of strain gauge. Define gauge factor and list out types of strain gauges.

The Semiconductor strain gauges typically have much higher gauge factors than those of metallic strain gauges, primarily due to : (A) higher temperature sensitivity (B) higher Poisson’s ratio (C) higher piezoresitive coefficient (D) higher magnetostrictive coefficient

Dummy strain gauge is used in conjunction with the main strain gauge to _____.

The frequency and time domain are related through _____.

The transient currents are due to _____.

Those materials are well suited for making permanent magnets which have _____ retentivity and _______ coercivity.

Dummy strain gauges are used for : -  a) compensation of temperature changes b) increasing the sensitivity of bridge in which they are included c) compensating for different expansion d) calibration of strain gauge

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Gauge factor of strain gauge is defined as the ratio of per unit change in the ______.

If Poisson's ratio of a resistance wire strain gauge is 1.8, then neglecting piezo-resistive effects, its Gauge factor is :  (A) 2.8 (B) 2.6 (C) 4.6 (D) 3.6

A strain gauge is a passive transducer and is employed for converting   (a) Pressure into change in resistance (b) Force into displacement (c) Mechanical displacement into a change of resistance (d) None of the above

To neglect a voltage source, the terminals across the source are _____

Moire fringes are used to measure rotary displacement along with _____.

The function of measurement system is/are _____.

For a prototype low pass filter, the series and shunt elements are respectively _____.

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During charging, the specific gravity of the electrolyte of a lead acid battery _____.

In an energymeter which coil carries the current proportional to supply voltage _____.

In a flux meter, the controlling torque is _____.

The use of thermocouple meters for AC measurement leads to a meterscale which is _____.

The standing wave ratio of a 75 Ω transmission line used to feed a 300 Ω resistive load will be _____.

If Voltage Standing Wave Ratio, (VSWR) of a wave is 2, its reflection coefficient will be _____.

Static electricity is produced by _____.

In 8086 the overflow flag is set when _____.   (a) The sum is more than 16 bits (b) Signed numbers go out of their range after an arithmetic operation (c) Carry and sign flags are set (d) Subtraction

The 8086 fetches instruction one after another from _____ of memory.   (a) Code segment (b) IP (c) ES (d) SS

Transistors can be used as _____. A. Amplifier B. Adder C. Relay D. MCB

An ideal DC generator is one that has _____ voltage regulation (a) low (b) high (c) zero (d) positive

Explain working of resistance strain gauge

Draw and explain the temperature compensation circuit in strain-guage.

Define stress and strain.

How strain gauge is used for pressure measurement, explain?

The advantage of a semiconductor strain gauge cover the wire round strain gauge is that

A dummy strain gage is used in a quarter bridge strain gage circuit to :  (A) compensate for changes in temperature and lead wire resistance  (B) produce more output voltage from the bridge  (C) increase the sensitivity of the bridge  (D) compensate lead wire resistance only

When measuring strain, ballast circuit use a capacitor to act as a high pass filter. This is done when:  a) Static strain are being measured b) Dynamic strain are being measured c) Both Static and dynamic strain are being measured d) None of the above

In a strain measuring device, using a strain gauge, the output quantity is  A) Voltage B) resistance C) Impedance D) either A) or B)

Gauge factor of about 5 can be obtained using strain gauge made of  A) Constantan B) Ferry C) Nichrome V D) Platinum