Electronic Welfare and Sensor Technology
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- Q1
Which of the following works on the principle of capacities sensor
Thermocouple
MEMS Accelerometer
Photodiode
Bolometer
30s - Q2
Which of the following sensors does not work on the principle of Transmit and Receive.
SONAR
LIDAR
RADAR
LASER
30s - Q3
Which of the following is not part of uncooled IR Detector
Proximity electronics
ROIC
Thermal absorber layer
CdZnTe based IR detector array
30s - Q4
Which of the following sensors can be used as chemical sensors
Proximity sensor
RTD
Acoustic emission sensors
SAW based e-Nose
30s - Q5
What is the phenomenon called that is responsible for Laser to be directional, monochromatic and coherent.
Stimulated Emission
Absorption
Spontaneous Emission
Emission cross section of the gain medium
30s - Q6
Which of the following IR detectors is better suited for desert conditions
MWIR Cooled Detector
LWIR Cooled Detector
SWIR Detector
Thermal Detector
30s - Q7
Which material is used to obtain eye safe wavelength in Laser Range Finders
Nd: YLF
Er: Glass
Nd: YAG
Nd: Glass
30s - Q8
What parameter of designator is responsible to identify foe and friend in real war scenario
Operating Pulse repetition frequency
PRF Coding
Laser wavelength
Polarisation
30s - Q9
Proximity sensors are used for
Seeking the Missile
Guiding the missile
Iincreasing the effectiveness and lethality
Ranging
30s - Q10
Near Boundary of Launch Basket is decided by
Control Power of the weapon
Energy of the weapon
Sensor Accuracy of the weapon
Band width of the actuator
30s - Q11
Which is the nuisance Mode
Spiral
Phugoid
Dutch Roll
SPPO
30s - Q12
For a Missile to be controlled
Stability Margin should be less than 0
Stability Margin should be 0
Any of the these
Stability Margin should be More than 0
30s - Q13
What is HF Frequency band?
300-3000 MHz
30-300MHz
1-3 GHz
3-30 MHz
30s - Q14
If the aperture of the antenna increases, its Gain will
decrease
none of the above
increase
remains same
30s - Q15
If the transmitter power of the Radar increases, its Range will
none of the these
increase
decrease
remains same
30s