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This set of Electromagnetic Interference Multiple Choice Questions & Answers (MCQs) focuses on Electromagnetic Interference Set 5
Q1 | The adjustment of position of shading bands, in an energy meter is done toprovide
- friction compensation
- creep compensation
- braking torque
- none of the above
Q2 | In an energymeter braking torque is produced to
- safe guard it against creep
- brake the instrument
- bring energy meter to stand still
- maintain steady speed and equal to driving torque
Q3 | Various adjustments in an energy meter include
- light load or friction
- lag and creep
- overload and voltage compensation
- all of the above
Q4 | Dipsticks are used for the
- pressure measurement
- flow measurement
- displacement measurement
- level measurement
Q5 | In ultrasonic level gauge, the ultrasonic source is placed at the
- bottom of the vessel containing the liquid
- top of the vessel containing the liquid
- middle of the vessel containing the liquid
- far from the vessel containing the liquid
Q6 | What is the principle of operation of LVDT?
- mutual inductance
- self-inductance
- permanence
- reluctance
Q7 | LVDT used for measurement of
- temperature
- displacement measurement
- resistance
- voltage
Q8 | Electrical strain gauge works on the principle of
- variation of resistance
- variation of capacitance
- variation of inductance
- variation of area
Q9 | Commonly used elements for wire strain gauges are
- nickel and copper
- nickel and gold
- gold and brass
- silver and aluminium
Q10 | C.R.O gives
- actual representation
- visual representation
- approximate representation
- incorrect representation
Q11 | CRO is a
- fast x-y plotter
- slow x-y plotter
- medium x-y plotter
- not a plotter
Q12 | Gauge factor in a strain gauge must be
- high
- low
- medium
- small
Q13 | Strain gauge measurement involves
- wheatstone bridge
- kelvin bridge
- de sauty’s bridge
- anderson bridge
Q14 | Strain gauge used for measurement of
- temperature
- resistance
- inductance
- displacement
Q15 | Deflection system of a CRT consists of
- 4 plates
- 6 plates
- 2 plates
- 8 plates
Q16 | Electrical transducers generate
- biological signals
- chemical signals
- physical signals
- electrical signals
Q17 | How do passive transducers develop electrical signals
- using a transformer
- using internal source
- using external source
- using a diode
Q18 | A transducer must be
- quick in response
- slow in response
- medium in response
- very slow in response
Q19 | McLeod gauge used for measurement of
- high pressure
- low pressure
- very high pressure
- pressure
Q20 | Temperature transducers make use of
- change in resistivity
- change in length
- change in area
- change in capacitance