EMERSON PROCESS MANAGEMENT Senior Systems Engineer Interview Questions and Answers

Q1. SMT production planning
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Q2. SMT prosser manpower handling
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Q1. Introduction, jobs & responsibility
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Q1. As per CV all question
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Q1. Once again introduction, pervious company details information & salary discussion
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Q1. Tell me about your work experience
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Q2. What's the new VRF tech in Daikin
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Q3. Ikwtr comparison for chiller and vrf
Ans. 
Chiller and VRF systems differ in their cooling capacity, efficiency, and cost.
• Chillers are better suited for large commercial buildings with high cooling loads.

• VRF systems are more efficient and cost-effective for smaller buildings or individual rooms.

• Chillers use water as a cooling medium, while VRF systems use refrigerant.

• Chillers require more maintenance and have a longer lifespan than VRF systems.

• VRF systems offer...read more
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Q1. How would you handle different meetings at a time.
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Q1. What are your salary expectations?
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Q2. What is your family background?
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Q3. Why are you looking for a change?
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Round duration - 60 Minutes
Round difficulty - Medium

This round started with some questions from Programmable Logic Controllers or PLC followed by some basic questions from Intel 8051 Microcontroller.

Q1. What are the general functions of a Programmable Logic Controller (PLC)?
Ans. 
PLCs are used to control machinery and automate processes in industrial settings.
• Monitoring inputs from sensors

• Executing control algorithms

• Communicating with other devices

• Logging data for analysis

• Implementing safety functions

• Examples: controlling a conveyor belt, regulating temperature in a furnace
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Q2. Can you describe the basic elements in Ladder logic programming?
Ans. 
Ladder logic programming is a graphical programming language used for PLCs, with basic elements like contacts, coils, timers, and counters.
• Ladder logic consists of rungs, which are made up of inputs (contacts) and outputs (coils).

• Contacts represent conditions that must be met for the output to be energized.

• Coils are outputs that are energized when the conditions of the contacts are met.

• Timers and counters are used to c...read more
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Q3. What are the different types of PLC inputs and outputs?
Ans. 
PLC inputs and outputs include digital inputs, digital outputs, analog inputs, and analog outputs.
• Digital inputs: used for receiving binary signals (on/off, high/low). Examples: push buttons, limit switches.

• Digital outputs: used for sending binary signals. Examples: relays, solenoids.

• Analog inputs: used for receiving continuous signals. Examples: temperature sensors, pressure transducers.

• Analog outputs: used for sendin...read more
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Q4. What are the advantages and disadvantages of the S7 controller?
Ans. 
The S7 controller offers high performance and flexibility but can be complex to program and expensive.
• Advantages: high performance, flexibility, scalability

• Disadvantages: complexity in programming, expensive

• Example: S7-1200 offers fast processing speeds and can be easily expanded with additional modules

• Example: Programming for S7 controllers may require specialized training and expertise
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Q5. Can you explain the time stamp available in the S7-200 PLC?
Ans. 
The time stamp in S7-200 PLC is used to record the time when a specific event occurs.
• Time stamp is a feature in S7-200 PLC that records the time when a specific event happens.

• It helps in tracking the sequence of events and troubleshooting issues.

• Time stamp can be used to monitor the performance of the PLC system.

• Example: A time stamp can be recorded when a sensor detects a change in temperature.

• Example: Time stamp can ...read more
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Q6. Could you explain Jnc in the context of microcontrollers?
Ans. 
Jnc stands for Jump and Call in the context of microcontrollers.
• Jnc is an instruction used in microcontrollers to jump to a specified address if the carry flag is not set.

• It is commonly used in conditional branching operations in microcontroller programming.

• For example, in 8051 microcontroller assembly language, the instruction JNC label will jump to the specified label if the carry flag is not set.
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Q7. What are the types of interrupts in the Intel 8051 microcontroller?
Ans. 
The types of interrupts in the Intel 8051 microcontroller include external hardware interrupts, timer interrupts, and serial communication interrupts.
• External hardware interrupts are triggered by external devices connected to the microcontroller.

• Timer interrupts are generated by the internal timers of the microcontroller.

• Serial communication interrupts occur when data is received or transmitted through the serial port.

• ...read more
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Round duration - 50 Minutes
Round difficulty - Medium

This round was heavily inclined towards Operating System and Computer Networks and the interviewer asked questions revolving around the fundamentals of the subject.

Q1. What is a bootstrap program in an operating system?
Ans. 
A bootstrap program is a small program that initializes the operating system on a computer.
• Bootstrap program is stored in ROM or EEPROM and is executed when the computer is powered on.

• It loads the operating system kernel into memory and starts its execution.

• Bootstrap program is responsible for setting up the initial state of the operating system.

• Examples include BIOS (Basic Input/Output System) in PCs and UEFI (Unified
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Q2. Can you explain demand paging?
Ans. 
Demand paging is a memory management scheme where pages are only brought into memory when they are demanded by the program.
• Pages are loaded into memory only when needed

• Helps in reducing the amount of physical memory required

• Improves overall system performance by allowing more processes to run simultaneously

• Commonly used in virtual memory systems
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Q3. Can you explain any 5 essential UNIX commands?
Ans. 
Five essential UNIX commands are ls, cd, pwd, mkdir, and rm.
• ls - list directory contents

• cd - change directory

• pwd - print working directory

• mkdir - make directory

• rm - remove files or directories
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Q4. What are the different types of VPN?
Ans. 
Different types of VPN include remote access VPN, site-to-site VPN, and client-to-site VPN.
• Remote access VPN allows individual users to connect to a private network from a remote location.

• Site-to-site VPN connects entire networks together over the internet.

• Client-to-site VPN allows individual devices to connect to a private network.

• Examples include OpenVPN, IPsec, and SSL VPN.
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Q5. Can you describe the OSI Reference Model?
Ans. 
The OSI Reference Model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.
• The OSI Reference Model stands for Open Systems Interconnection Reference Model.

• It consists of seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

• Each layer has specific functions and communicates with the adjacent layers for data trans...read more
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Q6. Can you explain the TCP and UDP protocols?
Ans. 
TCP is a connection-oriented protocol that ensures reliable data delivery, while UDP is a connectionless protocol that focuses on speed.
• TCP stands for Transmission Control Protocol and is used for reliable data transmission.

• TCP establishes a connection between sender and receiver before data transfer.

• TCP uses sequencing and acknowledgment to ensure data integrity.

• UDP stands for User Datagram Protocol and is used for fa...read more
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Round duration - 30 Minutes
Round difficulty - Easy

This is a cultural fitment testing round .HR was very frank and asked standard questions. Then we discussed about my
role.

Q1. What is something about you that is not included in your resume?
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