Efftronics Systems Electronic Technician Interview Questions and Answers

Q1. Can I apply your company
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Q2. Can you provide a job based on apprentice
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Q1. I am interested for electronic work
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Q1. Technical device technician interested
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Q1. Salary expectation .
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Q2. Why should I hire you?
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Q1. Mendix Advanced questions.
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Q2. Everything which you mentioned in your resume.
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Round duration - 30. minutes
Round difficulty - Easy

It was in the evening, question were moderate

Q1. 
Count Subsequences Problem Statement
Given an integer array ARR of size N, your task is to find the total number of subsequences in which all elements are equal.
Explanation:
A subsequence of an array i...read more
Ans. 
Count the total number of subsequences in which all elements are equal in an integer array.
• Iterate through the array and count the frequency of each element.

• Calculate the total number of subsequences for each element using the formula (frequency * (frequency + 1) / 2).

• Sum up the total number of subsequences for all elements and return the result modulo 10^9 + 7.
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Round duration - 30 minutes
Round difficulty - Easy

It was in the night around 9:00 PM.

Q1. 
Pair Sum Problem Statement
You are given an integer array 'ARR' of size 'N' and an integer 'S'. Your task is to find and return a list of all pairs of elements where each sum of a pair equals 'S'.
Note:
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Ans. 
Given an array and a target sum, find all pairs of elements that add up to the target sum.
• Iterate through the array and for each element, check if the complement (target sum - current element) exists in a hash set.

• If the complement exists, add the pair to the result list.

• Sort the pairs based on the first element and then the second element.

• Return the list of pairs as the final result.
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It was aptitude and technical MCQ questions round

Q1. Technical interview- regarding skills mentioned in resume and projects
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Q2. In same round hr interview was done
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Q1. Pese and newtral weryi important
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Q2. Arting weryi important
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Q3. Safly wayar coler red
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Q4. Newtral wayar coler block
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Q5. Arting wayar coler gren
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Q1. PLC input and outputs details?
Ans. 
PLC inputs and outputs are used to communicate with sensors, actuators, and other devices in an industrial control system.
• PLC inputs are used to receive signals from sensors or other devices.

• PLC outputs are used to send signals to actuators or other devices.

• Inputs and outputs are typically connected to the PLC using terminal blocks or connectors.

• Examples of inputs include push buttons, limit switches, and temperature s...read more
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Q2. Proximity sensor type
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Q1. Self introduction
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Q2. What is your notice period and what are your salary expectations?
Ans. 
My notice period is 2 weeks and my salary expectations are in line with industry standards.
• Notice period: 2 weeks

• Salary expectations: Industry standards
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