EDC SESSIONAL ROBOTICS

Which one is correct

• Extrinsic Semiconductor is a pure semiconductor
• Extrinsic Semiconductor is an impure semiconductor
• Extrinsic Semiconductor is a bad conductor
• None of the above

Extrinsic Semi conductors are

• P Type
• N Type
• Both P Type and N Type
• None of the above

Relay is a

• Switch
• Switch with control Circuitry
• Switch with No control Circuitry
• None of the above

Rectifier does

• Rectification of AC Signal
• Rectification of DC Signal
• Rectification of AC & DC Signal
• None of the above

Transistor is a

• One Junction Device
• Three Junctions Device
• Two Junctions Device
• None of the above

Thermal run way is

• Run way for Electonic Devices
• Burning due to Excessive Current
• Burning due to Excessive Voltage
• None of the above

Transistor biasing is done to

• Maximum gain
• Distortion Free Amplified Signal
• Forward Bias Junction Two
• None of the above

Relays are

• Capacitor Basesed
• Inductor Based
• Puerly Semiconductor Based
• None of the above

Which one is incorrect

• Diode is a one junction device
• Diode has a depletion layer formed by covalent bonding of Electrons and Holes
• Diode can do the rectification
• None of the above

Thryristor

• Is a Controlled Amplifirer
• Is a Controlled Rectifirer
• Is a Power Amplifier
• All of the above