Preview Questions Software Developer (Industrial Automation) | Role Specific Skill

Question 1: In control system integration, what is the role of a gateway device when connecting a DCS to a PLC in a petrochemical process?

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It provides a redundant communication path in case of failure

It increases network bandwidth for faster communication

It directly controls the feedback loops in the chemical process

It acts as a protocol converter to ensure compatibility between different systems

Question 2: What is the best way to debug timing-related issues in embedded systems?

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Use logic analyzers

Modify the code to add delays

Increase clock speed

Analyze compiler output

Question 3: Which hardware feature is essential for real-time task execution?

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All of the above

Real-time clocks

Multi-core processors

Watchdog timers

Question 4: What is the primary function of an RTOS in embedded systems?

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Manage file systems

Schedule tasks

Power management

Allocate memory

Question 5: In real-time system design for chemical processes, how would you ensure data consistency across multiple nodes in a distributed control system?

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Use individual timestamps for each sensor data point

Rely on backup systems to correct any discrepancies

Implement synchronized clocks and consistent data synchronization protocols

Store data locally at each node and update periodically

Question 6: How does a watchdog timer improve the reliability of real-time systems?

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Detects task overrun

Resets the system on failure

Handles interrupt latency

Improves memory efficiency