The aim to provide MCQs of Basic Electronics questions test with answer key in pdf format for the students of electronics technology. We are providing you the total 50 multiple choice questions. The time allowed for the basic electronics mcqs online test is 30 minutes only. It is humbly request to please don’t cheat / imitate during quiz. The passing marks is 50 marks out of 100.
I hope the learning process always starts when you know about your weakness. If you will read all the electronics mcqs of my website then i hope in the future you will definitely achieve the big success in your life. As we know, the teachers, students and technicians always required the preparation of basic electronics for examinations or test/interview for job/promotion. You must be humble in life whenever you got any huge success because Allah always likes the humble persons.
Objective Questions of Basic Electronics ( MCQs Test)
Time Allowed: 30 Minutes Total Marks: 100
Passing Marks: 50
*Select the correct answer and write down on the blank white sheet then download the PDF file of electronics mcqs. All the students must observe the rules which will decide how skilled you are in Electronics technology. Each Question has 2 marks.
Q1. In the Vacuum tube, electrons are emitted by ___________________. .
Q2. Nucleus is made of electrons and protons. True / False
Q3. The number of free electrons are more in ___________.
Q4. The concept of electricity means the flow of free electrons from the conductors. True / False
Q5. What is charge on Atom ?
- no charge
- a & b are correct
Q6. VLSI includes more than 10,000 circuits in a single chip. True / False
Q7. Generally, the type of ICs are used _________________.
- Thin Film
- Photo Graphite
- Thin Film
Q8. A Pin Diode is composed of 4 sections. True / False
Q9. The power dissipation range of CMOS family is_______________.
- Peco Watt
- Nano Watt
- Mega Watt
- Micro Watt
Q10. The benefits of TTL has easy interfacing with other circuits and fast speed. True / False
Q11. Intrinsic semi-conductor is a _____________ semi-conductor.
- large size
Q12. The pure tungston cathode has efficiency of emission is 2 to 10 ma watt. True / False
Q13. Indirectly heated cathodes are made of_________________.
- oxide coated electrodes
- pure tungsten
Q14. The drift of electrons in the conductors causes of eclectic current due to electric field. True / False
Q15. At room temperature, Intrinsic semiconductor have _____________ available for conduction.
- None is correct
- both electrons & holes
Q16. The conductivity of emitter region in transistor is kept higher than the base region. True / False
Q17. HTL stands for____________________________________.
- High Tide Line
- Hole Transport Layer
- High Threshold logic
- Hole Transport Layer
Q18. The majority carriers in the PNP transistor are holes and NPN transistors are electrons. True / False
Q19. The Boolean equation for AND Gate is______________.
Q20. ECL is also called current mode logic. True / False
Q21. _______________ uses Poly Silicon gates.
Q22. A transistor may be regarded as a combination of two diodes connected back to back. True / False
Q23. An ____________ gate performs logic addition.
Q24. Capacitor input filter consists of one inductor and one capacitor. True / False
Q25. Semi-conductor diodes are used as rectifier because it offer ________ resistance in one direction and __________ resistance in other direction.
- high, low
- low, high
- high, high
- low, low
Q26. Bipolar Transistor is a three layers semi-conductor device. True / False
Q27. Silicon Controlled Rectifier (SCR) belongs to _____________.
- thyristor family
- logic family
- diode family
- triode family
Q28. In the PNP transistor, the base is made of N material. True / False
Q29. In an ideal semi-conductor diode, reverse current is____________.
Q30. An ideal diode works like a closed switch when reverse biased. True / False
Q31. In a DC circuit, the capacitor acts like _________ to the DC source.
Q32. During Alloy Process while formation of PN junction, one type of material is placed on the wafer of the opposite type. True / False
Q33. A Semi-Conductor diode designed to operate in the breakdown region is called __________ diode.
Q34. The total base current of a transistor consists of two currents flowing in same directions. True / False
Q35. The ratio of IC and IE gives the __________ of a transistor.
- all are correct
Q36. A transistor does not conduct unless its emitter base junction is forward biased. True / False
Q37. The transistor beta (β) is much __________ than the Alpha (α).
Q38. In the Common Base Amplifier, a positive going input signal produces a positive going output signal. True / False
Q39. A JFET always operates with the gate to source PN Junction____________ biased.
Q40. For VGS = 0v, the drain current becomes constant when VDS exceeds VP. True / False
Q41. The constant current region of the FET lies between __________________.
- pinch-off and breakdown
- cut-off and pinch off
- saturation and cut-off
- all are correct
Q42. IDSS is the maximum possible drain current. True / False
Q43. The channel of FET is between the drain and _____________.
Q44. Drain current in the constant region increases when the gate to source bias voltage decreases. True / False
Q45. Silicon has Z = 14, its outermost orbit_____________.
- half filled
- partially filled
- completely filled
Q46. In an intrinsic semi-conductor, major part of the current is due to the conduction band electrons . True / False
Q47. Semi-conductor materials have ___________ bonds.
Q48. The distance between conductors, insulators and semi-conductors is largely concerned with binding energy of their electrons. True / False
Q49. The distribution of electrons in the Si atom is ____________.
- 2, 8, 4
- 2, 8, 8
- 2, 4, 8
- 2, 2, 4
Q50. A summing amplifier can have any number of inputs. True / False