ECE REVIEWER FREE – ELECTRONICS ENGINEERING

Preparing for the Electronics Engineer Licensure Examination (ECE) can be a daunting task, but with the right tools, it becomes more manageable and even enjoyable. One such tool is the LOOKSFAM Board Exam Tool, designed to optimize your study process and help you succeed.

Electronics Engineering

A circuit whose components are soldered or otherwise connected mechanically
non discrete circuit
integrated circuits
biasing circuits
discrete circuit
Show Solution
Question:
A circuit whose components are soldered or otherwise connected mechanically
Answer:

discrete circuit

Antenna bandwidth can be increased by using__________.
Cages
Thicker wires
All of these
A feed horn
Show Solution
Question:
Antenna bandwidth can be increased by using__________.
Answer:

All of these

What is the principal method used in the fabrication of semiconductor devices for hybrid and monolithic I.Cs?
photolithographic process
epitaxial growth
isolation diffusion
planar technology
Show Solution
Question:
What is the principal method used in the fabrication of semiconductor devices for hybrid and monolithic I.Cs?
Answer:

planar technology

How many protons does the nucleus of a silicon atom contain?
14
29
32
4
Show Solution
Question:
How many protons does the nucleus of a silicon atom contain?
Answer:

32

What is the primary role of a microprocessor in a computer system?
Data storage
Network communication
User interface management
Data processing
Show Solution
Question:
What is the primary role of a microprocessor in a computer system?
Answer:

Data processing

Explanation:

The primary role of a microprocessor is data processing, performing arithmetic and logical operations to execute instructions and process data in a computer system.

A storage battery in which the electrodes are grids of lead containing lead oxides that change in composition during charging and discharging and the electrolyte is dilute sulfuric acid.
nickel-cadmium battery
leclanche battery
faure storage battery
lead-acid battery
Show Solution
Question:
A storage battery in which the electrodes are grids of lead containing lead oxides that change in composition during charging and discharging and the electrolyte is dilute sulfuric acid.
Answer:

lead-acid battery

The processor or central processing unit is
communicates with the user
the heart of the computer
supports floating point numbers
employed RISC
Show Solution
Question:
The processor or central processing unit is
Answer:

the heart of the computer

Electric dipole is a pair of __________ and __________ point charges.
Equal and opposite
Unequal and opposite
Unequal and same
Equal and same
Show Solution
Question:
Electric dipole is a pair of __________ and __________ point charges.
Answer:

Equal and opposite

Percentage ripple can be calculated by getting the _____ and multiplying the result by 100%
ratio of the input resistance and input voltage
ratio of the ac voltage to dc voltage
product of the ac current to the dc current
addition of the ac and dc component of the given signal
Show Solution
Question:
Percentage ripple can be calculated by getting the _____ and multiplying the result by 100%
Answer:

ratio of the ac voltage to dc voltage

_______velocity is that whose resultant repeated reflected waves travel down the guide.
Medium
None of these
Phase
Group
Show Solution
Question:
_______velocity is that whose resultant repeated reflected waves travel down the guide.
Answer:

Group

A type of meter that gives a precise reading of voltage, current or resistance where there is the generation of samples at the input and then feeds it to a digital read-out.
VOM
VTVM
DMM
DTMF
Show Solution
Question:
A type of meter that gives a precise reading of voltage, current or resistance where there is the generation of samples at the input and then feeds it to a digital read-out.
Answer:

DMM

If the capacitance of mica capacitor is 5 times the capacitance of air capacitor, then the relative permittivity of mica is
25
10
5
2.5
Show Solution
Question:
If the capacitance of mica capacitor is 5 times the capacitance of air capacitor, then the relative permittivity of mica is
Answer:

5

A circuit configuration characterized by high current gain, low voltage gain...
Common Emitter
Voltage Multipliers
Common Collector
Common Base
Show Solution
Question:
A circuit configuration characterized by high current gain, low voltage gain...
Answer:

Common Collector

Explanation:

Common Collector configuration exhibits high current gain, low voltage gain, and in-phase input/output voltage.

What is the next binary number following (10111)2 in the counting sequence?
110011
10110
11100
11000
Show Solution
Question:
What is the next binary number following (10111)2 in the counting sequence?
Answer:

11000

If the number of valence electrons of an atom is less than 4, then the substance is probably
an insulator
a metal
a non-metal
a semiconductor
Show Solution
Question:
If the number of valence electrons of an atom is less than 4, then the substance is probably
Answer:

a metal

The x-ray region of the electromagnetic spectrum has a corresponding range of wavelengths from
0.1 to 0.0001 pm
0.1 to 0.0001 nm
0.1 to 0.0001 mm
0.1 to 0.0001 µm
Show Solution
Question:
The x-ray region of the electromagnetic spectrum has a corresponding range of wavelengths from
Answer:

0.1 to 0.0001 nm

The charge coupled device (CCD) is a unique and versatile semiconductor structure invented in 1969 by
D. Cave and W. Blood Jr.
W.F. Davis and R.C. Huntington
H.H Stellrecht and C.S. Meyer
W.S. Boyle and G.E. Smith
Show Solution
Question:
The charge coupled device (CCD) is a unique and versatile semiconductor structure invented in 1969 by
Answer:

W.S. Boyle and G.E. Smith

An RS flip-flop will not change in state when
R = 1, S = 1
R = 0, S = 1
R = 0, S = 0
R = 1, S = 0
Show Solution
Question:
An RS flip-flop will not change in state when
Answer:

R = 0, S = 0

In IC op amps, one of the most important input characteristics is the _____ which is defined as the difference between the base currents.
input offset current
total base currents
input bias current
all of the choices
Show Solution
Question:
In IC op amps, one of the most important input characteristics is the _____ which is defined as the difference between the base currents.
Answer:

input offset current

Magnetic fields do not interact with
stationary electric charges
stationary permanent magnets
moving electric charges
moving permanent magnets
Show Solution
Question:
Magnetic fields do not interact with
Answer:

stationary electric charges

States that current in a thermionic diode varies directly with three-halves power of anode voltage and inversely with the square of the distance between the electrodes when operating conditions are such that the current is limited only by the space charge
Joule's Law
Hall's Law
Coulomb's Law
Child's Law
Show Solution
Question:
States that current in a thermionic diode varies directly with three-halves power of anode voltage and inversely with the square of the distance between the electrodes when operating conditions are such that the current is limited only by the space charge
Answer:

Child's Law

Which of the following is a natural magnet?
steel
lodestone
magnesia
soft iron
Show Solution
Question:
Which of the following is a natural magnet?
Answer:

lodestone

What is provided by transformer coupling?
impedance matching
stability of gain
good frequency response
step-up in voltage
Show Solution
Question:
What is provided by transformer coupling?
Answer:

impedance matching

Majority of analog measuring instrument utilizes one of the following effects.
magnetic effect
chemical effect
electrostatic effect
heating effect
Show Solution
Question:
Majority of analog measuring instrument utilizes one of the following effects.
Answer:

magnetic effect

Armature reaction in a dc motor is increased
when the armature current decreases
when the field current increases
by interpoles
when the armature current increases
Show Solution
Question:
Armature reaction in a dc motor is increased
Answer:

when the armature current increases

The reason why electrical appliances are not connected in series.
all of the above
greater electrical power saving
appliances have different current ratings
power loss is minimum
Show Solution
Question:
The reason why electrical appliances are not connected in series.
Answer:

appliances have different current ratings

A dielectric material must be –
Electric field
resistor
None of the above
insulator
Show Solution
Question:
A dielectric material must be –
Answer:

insulator

Conductivity of dielectric is _________.
both (a) and (b)
high
cannot say
low
Show Solution
Question:
Conductivity of dielectric is _________.
Answer:

low

In case of a 4-pole machine, 1 mechanical degree corresponds to _____ electrical degrees.
2
4
8
6
Show Solution
Question:
In case of a 4-pole machine, 1 mechanical degree corresponds to _____ electrical degrees.
Answer:

2

The electric field intensity at a point situated 4 meters from a point charge is 200 N/C. If the distance is reduced to 2 meters, the field intensity will be
1200 N/C
600 N/C
800 N/C
400 N/C
Show Solution
Question:
The electric field intensity at a point situated 4 meters from a point charge is 200 N/C. If the distance is reduced to 2 meters, the field intensity will be
Answer:

800 N/C

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Using LOOKSFAM for ECE Review

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  1. Personalized Question Bank: LOOKSFAM offers a vast array of questions covering all major subjects of the ECE board exam, including:
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  3. Performance Analytics: LOOKSFAM provides detailed analytics on your performance, helping you identify your strengths and weaknesses. This allows you to focus your efforts on areas that need the most attention1.
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Conclusion

The ECE board exam is a significant milestone in your engineering career. Utilizing tools like LOOKSFAM can provide a structured, efficient, and enjoyable way to prepare. With its adaptive learning algorithms, detailed analytics, and gamified approach, LOOKSFAM ensures that you’re not just studying hard, but also studying smart.

Good luck to all future electronics engineers! If you have any specific questions or need further assistance, feel free to ask.

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