Preview Questions Electronics Engineer | Role Specific Skill

Question 1: How does DMA (Direct Memory Access) improve the performance of embedded systems in terms of data transfer?

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It transfers data between peripherals and memory without involving the CPU

It provides power-efficient memory access

It increases the clock speed of the processor

It allows the microcontroller to control memory directly

Question 2: What is the typical signal attenuation per meter for a coaxial cable in RF testing?

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Depends on cable type and frequency

1 dB

10 dB

0.1 dB

Question 3: How can you determine the phase angle in a series RLC circuit?

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Using phasor diagram

Using KVL

Using power factor

Using impedance triangle

Question 4: What type of PCB design uses only one conductive layer?

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Double-sided PCB

Flex PCB

Multi-layer PCB

Single-sided PCB

Question 5: What is the most suitable data structure to use for implementing a real-time operating system (RTOS) task scheduler?

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Circular queue

Stack

Linked list

Priority queue

Question 6: How would you troubleshoot an intermittent fault in a circuit under real-world conditions?

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Replace all suspect components

Simulate the fault condition systematically

Increase ambient temperature

Use freeze spray and monitor changes