EASA Module M4: Electronics Practice Questions

1. What is the function of a transistor?
a) Convert AC to DC
b) Amplify or switch electronic signals ✅
c) Measure resistance

2. What is the primary purpose of a rectifier circuit?
a) Generate AC
b) Convert AC to DC ✅
c) Store charge

3. Which component is used to store electrical energy in an electric field?
a) Resistor
b) Inductor
c) Capacitor ✅

4. What is the purpose of a Zener diode?
a) Allow current in one direction
b) Stabilize voltage ✅
c) Amplify current

5. The basic logic gate that performs the AND function has an output of 1 when:
a) Both inputs are 1 ✅
b) Both inputs are 0
c) Either input is 1

6. Which material is commonly used in semiconductor devices?
a) Copper
b) Silicon ✅
c) Iron

7. What does the term "biasing" in a transistor mean?
a) Amplification of signals
b) Applying external voltage to establish operating conditions ✅
c) Regulating temperature

8. Which of the following is a unipolar device?
a) Diode
b) MOSFET ✅
c) Bipolar Junction Transistor (BJT)

9. The unit of inductance is:
a) Farad
b) Henry ✅
c) Ohm

10. What is the primary purpose of an operational amplifier?
a) To amplify signals ✅
b) To convert AC to DC
c) To filter frequencies

11. What is a printed circuit board (PCB)?
a) A board used for soldering components ✅
b) A device for amplifying signals
c) A type of power supply

12. What is the output of a NOT gate when the input is 1?
a) 0 ✅
b) 1
c) Cannot determine

13. Which of the following is a passive component?
a) Diode
b) Transistor
c) Resistor ✅

14. The most common type of filter used in electronic circuits is:
a) Band-pass filter
b) Low-pass filter ✅
c) High-pass filter

15. What is the main function of a voltage regulator?
a) Measure voltage
b) Maintain constant output voltage ✅
c) Convert AC to DC

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M4 Electronics (EASA Module 4 Electronics Part66Prep)

M4 Electronics

• Total Question =  388
• Powerpoint  Format 
• Each Slide Have 03 Question

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M-4 Electronics Fundamentals Final Practice Test [20 Question and 25 Minutes]

M-4 Electronic Fundamentals

Final Practice Test

  

 

1. In a forward biased diode, current is carried by ?
   1.   majority carriers
   2.   minority carriers
   3.   both
2. Diodes are ?
   1.   conductors
   2.   semi-conductors
   3.   nsulators
3. A band pass filter excludes frequencies ?
   1.   below the frequency required only
   2.   above and below the frequency required
   3.   above the frequency required only
4. A zener diode is designed to operate ?
   1.   below its breakdown voltage
   2.   either above or below its breakdown voltage
   3.   above its breakdown voltage
5. A triac is a type of ?
   1.   thermistor
   2.   transistor
   3.   thyristor
6. When a PN junction is forward biased, it conducts via ?
   1.   intrinsic carrier
   2.   majority carrier
   3.   minority carrier
7. If the reverse bias voltage across a diode is too high ?
   1.   load current reduces to zero
   2.   load current increases rapidly
   3.   load current reverses
8. An LED which emits green light uses ?
   1.   gallium phosphide
   2.   gallium arsenide
   3.   gallium arsenide phosphide
9. N' type materials are doped with ?
   1.   acceptors
   2.   acceptors and donors
   3.   donors
10. In an NPN transistor the P is the ?
    1.   collector
    2.   emitter
    3.   base
11. The rotor of a magnesyn transmitter is ?
    1.   a permanent magnet
    2.   an ac electromagnet
    3.   a dc electromagnet
12. What device transfers one energy type to another ?
    1.   Transponder
    2.   Transducer
    3.   Transmitter
13. What control system is used on an input that gives a controlled predetermined output?
    1.   Control Servo
    2.   Closed Loop
    3.   Open Loop
14. A rate control servo system with a steady input voltage will give ?
    1.   decreasing speed
    2.   increasing speed
    3.   constant speed
15. The phase difference between the supplies of a two phase induction motor is ?
    1.   90°
    2.   180°
    3.   0°
16. An LVDT has ?
    1.   an output winding which is wound in series opposition
    2.   an input winding whose voltage will change with load movement
    3.   an output winding whose voltage and frequency is linear to load angular movement
17. In a synchro system, if two stator lines are crossed the receiver will ?
    1.   be 180° out
    2.   not be affected
    3.   reverse direction
18. A control synchro system pointer is ?
    1.   actuated by a permanent magnet
    2.   displaced by the torque of the stator
    3.   motor driven
19. TR is the abbreviation for a ?
    1.   transmitter Resolver
    2.   torque Receiver
    3.   torque Rynchro
20. What power is required for a desynn indicator system ?
    1.   DC
    2.   AC 400 Hz
    3.   AC 50 Hz

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B1 Modular Final Exams Questions Quantity and time Information

Category    B-1 

M-1:  Mathematics  

32 Questions      are in final Exams        Time    40 Mints

M-2:  Physics

52 Questions      are in final Exams        Time    65 Mints

M-3:  Electrical

52 Questions      are in final Exams         Time    65 Mints

M-4:  Electronics

20 Questions      are in final Exams         Time    25 Mints

M-5:  Digital Techniques

40 Questions      are in final Exams         Time    50 Mints

M-6:  Material And Hardware

72 Questions      are in final Exams         Time    90 Mints

M-7:  Maintenance Practices

80 Questions      are in final Exams         Time    100 Mints

M-8:  Basic Aerodynamics

20 Questions      are in final Exams         Time    25 Mints

M-9:  Human factor

20 Questions      are in final Exams         Time    25 Mints

M-10:  Aviation Legislation

40 Questions      are in final Exams         Time    50 Mints

M-11:  Aeroplane Structure

132 Questions      are in final Exams        Time    165 Mints

M-12:  Helicopter Aerodynamic

116 Questions      are in final Exams        Time    145 Mints

M-15:  Gas Turbine Engine 

92 Questions      are in final Exams         Time    115 Mints

M-16:  Piston Engine

72 Questions      are in final Exams         Time    90 Mints

M-17:  Propeller

32 Questions      are in final Exams         Time    40 Mints

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M4 Electronic Sub-Module No 3(Quiz No:1)

Servomechanisms

Quiz

 

1. In the transformers lamination are tightly butted together to ……. The reluctance of the air gap ?
   1.   Equalize
   2.   Increases
   3.   Reduce
2. An ………….. is one that does not have any feedback mechanism ?
   1.   Close-loop system
   2.   Open-loop system
   3.   Auto-loop system
3. A ………... has two stator windings placed at 90 degrees to each other, and a single rotor winding that is energized ?
   1.   Resolver
   2.   Transducer
   3.   Error detector
4. Control synchro consists of a pair of synchro, namely a synchronous transmitter driving a receiver, known as a ?
   1.   Control transducer
   2.   Manual transformer
   3.   Control transformer
5. The torque synchro is designed to provide a ……... without additional servo components ?
   1.   Light torque input
   2.   High torque output
   3.   Light torque output
6. Resolvers are used to transmit angular position data from one location to another where a ……...is required ?
   1.   Low degree of accuracy
   2.   High degree of accuracy
   3.   Equal degree of accuracy
7. Alternate stacking of the lamination of transformer …the flux leakage and iron losses ?
   1.   Increases
   2.   Does not effect
   3.   Reduces
8. This type of transmitters uses inductance winding, similar to a synchro ?
   1.   Capacitance transmitter
   2.   Inductance transmitters
   3.   Thermistor transmitters
9. All closed-loop systems have an ………..., known as a "follow-up" ?
   1.   Error producer
   2.   Error ignorer
   3.   Error detector
10. Analogue tranducer is basically a transformer with………………. and a moving core that is attached to the controlled unit ?
    1.   Two secondary induction coils
    2.   Ten secondary induction coils
    3.   Four secondary induction coils

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