AFM stands for ______
1.Auto focusing microscope
2. Antenna focusing microscope
3. Atomic force microscope
4.None of the mentioned
Chemiresistor sensors are used for test gases in _______
1. Solid form
2.Liquid form
3.Vapour form
4.All of the mentioned
Direction of acoustic wave in QCM will be _______
1.Same as crystal surface
2.Opposite to crystal surface
3.Perpendicular to crystal surface
4.None of the mentioned
Magnetostriction transmitter uses _______
1. Electrostrictive phenomena
2.Horizontal vibration of nickel tube
3.Longitudinal vibration of nickel tube
4.All of the mentioned
Phenomenon of producing sound under mechanical stress is called______
1.Magnetostriction
2.Acoustiction
3.Electrostriction
4.Acoustic emission
Photo ionization and flame ionization technique are most favoured in detection of ______
1. Organic gases
2.Inorganic gases
3.Vapours
4.All of the mentioned
Plastics optical cables can be used for ______
1.Short range
2.Medium range of distance
3.Long range of distance
4. Very high range of distance
QCM stands for __________
1. Quartz crystal micro balance
2.Quality control balance
3.Quartz crystal magnifier
4.None of the mentioned
SAW stands for _______
1.Sound actuated wave
2.Surface acoustic wave
3. Sound activated wave
4.Surface activated wave
Temperature sensor of silicon can detect wavelength of _______
1.Less than 0.1 um
2.Less than 1.1 um
3. Less than 10nm
4.Greater than 100nm
Acoustic wave in QCM meets minimum impedance when thickness of device is ______
1.Equal to wavelength of acoustic wave
2.Product of Half of wavelength of acoustic wave
3. Product of quarter of wavelength of acoustic wave
4.None of the mentioned
All elements of sonar are driven electrically.
1.True
2.False
3.all of the above
4.None of the mentioned
At 1000C wavelength of radiation will be ________
1.Less than 10um
2.Less than 100um
3.Less than 1000um
4. Less than 10nm
BAW stands for ________
1.Bulk acoustic wave
2.Barrier acoustic wave
3.Barrier avoiding wave
4.Bulk activated wave
Changes in resonant frequency of QCM is proportional to ________
1.Mass accumulated in crystal
2.Crystal used
3.Time of usage
4.None of the mentioned
Cladding in glass fibre have high refractive index than the core.
1.True
2.False
3.all of the above
4.None of the mentioned
Energy of emitted radiation from a body increases with ________
1.Increase in temperature
2.Decrease in temperature
3. No relation with temperature
4. Net energy cannot be changed
Epoxy material in fibre optics is intended for ______
1.Better optical properties
2.Better reflection
3.Better sealing
4.Reducing noise
Fluoride glass is used with ______
1. IR waves
2.UV rays
3.Normal light
4.All of the mentioned
General spectral range for silica glass is _______
1.Less than 200 nm
2.Between 200 nm to 2200 nm
3.Between 2000 nm to 5000 nm
4.Greater than 3000 nm
Glass electrode is an ion selective electrode.
1.True
2.False
3.all of the above
4.None of the mentioned
Heater power in thick film hybrid technology is _____
1. 5KW
2.50 MW
3.500 MW
4.500 mW
IR sensors are used in detection of _______
1.Organic gases
2. Inorganic gases
3.Vapours
4.All of the mentioned
IR thermograph is also known as________
1.Thermogram
2.Heat thermograph
3.Thermogram
4.None of the mentioned
IR thermography is useful in the medical field.
1. True
2.False
3.all of the above
4.None of the mentioned
ISE stands for _________
1.Ion sticking electrode
2.Ion selective electrode
3.Inactive segment electrode
4.Inorganic substance electrode
Loss associated with plastic fibre is less than glass fibres.
1. True
2.False
3.all of the above
4.None of the mentioned
Magnetic bio sensor is wide used for _______
1.Blood detection
2.DNA detection
3.ECG detection
4.EMG detection
Mass sensors are a combination of SAW.
1.True
2.False
3.all of the above
4.None of the mentioned
Mosaic regarding sonar is _____
1.Surface of sonar
2.Frequency of sound wave
3.Pattern of vibrating elements
4.Depth of sea to which it is applicable
Non contacting type bio sensors are _______
1.Radiation type
2.Electromagnetic type
3.Radiation or electromagnetic type
4.None of the mentioned
OTDR stands for __________
1. Optical time domain reflectometer
2.Optical transfer data rate
3. Optical time data registers
4.None of the mentioned
Piezo electric materials are well cut for _______
1.Good dimension
2.Good coupling coefficient
3.Compact shape of device
4. Increasing frequency
Polypropylene is a/an ______
1.Inorganic sensor
2.Organic sensor
3.Metal sensor
4.Gaseous sensor
Quartz can be used as bio sensors.
1. True
2.False
3.all of the above
4.None of the mentioned
Radiation thermometers are pyrometers.
1.True
2.False
3.all of the above
4.None of the mentioned
Silica glass of hydroxyl concentration can be used for ___________ of wavelength.
1.100 nm to 250 nm
2.250 nm to 800 nm
3.800 nm to 1500 nm
4.100 nm to 3400 nm
SONAR stands for _________
1.Sound navigation and ranging
2.Sound number approximation and ranging
3. Sound nullifying ranging
4.None of the mentioned
Sound waves are similar to light waves in all aspects.
1. True
2. False
3.all of the above
4.None of the mentioned
Water purity is tested by ________
1.Water activity sensor
2.pH meter
3.SAW sensor
4.BAW sensor
Wavelength of peak radiation is represented by ________
1.28.91 * T
2.2891/T
3.189 * T
4.None of the mentioned
Which of the following can be used in sonar?
1.ADP
2.Rescelle salt
3.ADP and Roscelle salt
4. ADP and Roscelle salt in sealed condition
Which of the following change electrical conductivity on the absorption of a gas molecule?
1. Tin
2.Zinc
3. Nickel
4. All of the mentioned
Which of the following is most preferred?
1.QCM and SAW sensor
2.QCM and BAW sensor
3.QCM
4.All of the mentioned
Which of the following is not correct for fibre optic sensors?
1.Immune to electro magnetic interference
2.Immune to radiation hazard
3.Can be used in harsh environments
4.None of the mentioned
Which of the following produce em radiation in ir region?
1.Body with negative temperature
2.Body with temperature less than 1000C
3.Body with temperature less than 6000C
4.Body with temperature less than 10000C
Which of the following represents loss associated with glass fibres?
1.3 dB/Km
2. 10 dB/Km
3. 0 dB/Km
4.50 dB/Km
Which of the following sensor have a large response time?
1. Thermopile
2.Pyroelectric sensor
3.Lead sulphide sensor
4.Silicon sensor
Which of the following sensors provide higher temperature capacity?
1. Thermopile
2.Pyroelectric sensor
3.Lead sulphide sensor
4.Silicon sensor
Which of the following type sound generators are not possible?
1. Piezo electric
2.Magnetostrictive
3.Both piezo electric and magnetostrictive
4.None of the mentioned