# Online Quiz On Strain Rosettes @bcme Subject

20 Questions  Settings  • 1.
Resistance strain gauges, commercially available from the early
• A.

1940

• B.

1840

• C.

1740

• D.

1540

• 2.
•Strain can also be measured by sensing change in electrical resistance.
• A.

True

• B.

False

• 3.
.………is a device which is used to measure strain (deformation) on an object subjected to forces.
• A.

strain gauge

• B.

Pressure gauge

• C.

Pnumatic gauge

• D.

hydraulic

• 4.
The most commonly used strain gauge is an electrical resistance strain gauge.
• A.

True

• B.

False

• 5.
……… is an electrical circuit used to measure an unknown electrical resistance by balancing two legs of a bridge circuit, one leg of which includes the unknown component.
• A.

•Unbalanced bridge

• B.

Wheatstone bridge

• C.

Both A&B

• D.

None

• 6.
•The Wheatstone bridge was invented by Samuel Hunter Christie (sometimes spelled "Christy") in 1833 and improved and popularized by Sir Charles Wheatstone in 1843.
• A.

True

• B.

False

• 7.
One of the Wheatstone bridge's initial uses was for …………….and comparison.
• A.

Air Analysis

• B.

Temperature analysis ​​​​​​​

• C.

Sand analysis

• D.

Soil analysis

• 8.
Strain gauge measurement involves __________
• A.

Wheatstone bridge

• B.

Kelvin bridge

• C.

De Sauty’s bridge

• D.

Anderson bridge

• 9.
• Load cell is used for the measurement of _______
• A.

area

• B.

Force

• C.

Mass

• D.

• length

• 10.
Strain is a _______
• A.

Fractional change in volume

• B.

Fractional change in area

• C.

Fractional change in length

• D.

fractional change in height

• 11.
•Semiconductor strain gauge uses _______
• A.

rectifier circuitry

• B.

power electronics circuitry

• C.

Ordinary bridge circuit

• D.

Bridge circuit with temperature compensation

• 12.
•Metals in strain gauge construction have _______
• A.

•non-linear temperature coefficient

• B.

• linear temperature coefficient

• C.

Tangential temperature coefficient

• D.

exponential temperature coefficient

• 13.
A Wheatstone bridge has__
• A.

Low sensitivity

• B.

zero sensitivity

• C.

high sensitivity

• D.

Infinite sensitivity

• 14.
Load cell is sensitive to minute strains.
• A.

True

• B.

False

• 15.
Mass of only about 20 kg can be measured by a load cell.
• A.

True

• B.

False

• 16.
•Which angle of subtension can be observed by the reflected light beam during the rotational movement of mirror under the application of stress in optical gauges?
• A.

Equal to an angle of incident light

• B.

Twice to an angle of incident light

• C.

One-half to an angle of incident light

• D.

One-third to an angle of incident light

• 17.
•Which phenomenon results in producing the difference in resistance due to incapability to regain its original physical form before an application of stress to the gauge element?
• A.

Hysteresis Effect

• B.

Barkheussan Effect

• C.

Differentiative Effect

• D.

Integrative Effect

• 18.
What kind of electrical displacement transducers are used to measure an angular displacement ?
• A.

Variable Resistive Transducers

• B.

Variable Capacitive Transducers

• C.

Variable Inductive Transducers

• D.

Synchros and Resolver Transducer

• 19.
•How does it become possible to reduce the interference level generated corresponding to the stray magnetic fields in LVDT?
• A.

By Shielding

• B.

By Grounding

• C.

Both a & b

• D.

None of the above

• 20.
Which bridge is utilized in signal conditioning circuits for balancing purpose?
• A.

Maxwell Bridge

• B.

Wheatstone Bridge

• C.

Wein Bridge

• D.

Kelvin Bridge Back to top