ELECTRONIC PRACTICE - Practice Mode

1) What is the purpose of using binary coded decimal (BCD) system in digital circuits?

Storing the data inputs Control the binary system Interface to binary system Segregating the input parameters

Correct Answer: Storing the data inputs

2) Which quantity can be measured by CRO?

Frequency Inductance Resistance Power factor

Correct Answer: Frequency

3) Which is the main application of SCR?

Amplifier Oscillators Multi vibrators Speed control of motors

Correct Answer: Speed control of motors

4) What is the criteria to decide a material as conductor, semi conductor and insulator?

Atomic bonding structure of atom Existence of valance electrons in atom Atomic weight of the atom of the material Atomic number of the atom of the material

Correct Answer: Existence of valance electrons in atom

5) Which doping material is used to make P-type semi conductor?

Boron Arsenic Antimony Phosphorous

Correct Answer: Boron

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