Preview Questions Electronics Engineer | Role Specific Skill

Question 1: What is the purpose of a boundary scan in PCB testing?

Which action should you take?

Choose only one option

To validate the soldering of through-hole components

To test the functionality of components in-circuit

To ensure proper thermal management

To check for signal integrity issues

Question 2: How is the total resistance calculated in a circuit with resistors in parallel?

Which action should you take?

Choose only one option

Product of resistances divided by the sum

Difference of the resistances

Sum of the individual resistances

Sum of the reciprocals of the resistances

Question 3: When programming a microcontroller, how would you implement a low-power mode that wakes up on a pin change?

Which action should you take?

Choose only one option

Use a watchdog timer

Enable power-down mode through a system call

Enable sleep mode with external interrupt

Use software to disable all peripherals

Question 4: What does the term "Q-factor" refer to in a resonant circuit?

Which action should you take?

Choose only one option

The phase angle of the circuit

The selectivity of the circuit

The energy dissipated per cycle

The total impedance of the circuit

Question 5: What is the Laplace transform used for in circuit analysis?

Which action should you take?

Choose only one option

Simplifying phasor diagrams

Solving time-domain differential equations

Calculating current in DC circuits

Analyzing thermal stability

Question 6: What is the impact of trace impedance on high-frequency signal integrity in PCB design?

Which action should you take?

Choose only one option

It determines the signal speed

It has no impact on high-frequency signal integrity

It increases the power loss of the signal

It can cause reflection and signal distortion