Al Jaber Energy Services LLC Interview Questions and Answers

Sliding window leet code style

Computer vision task. Image segmentation

Q1. What was the algorithm you used in the task
Ans. 
I used the Random Forest algorithm for the task.
• Random Forest is an ensemble learning method that builds multiple decision trees and merges them together to get a more accurate and stable prediction.

• It is commonly used for classification and regression tasks.

• Example: RandomForestClassifier in scikit-learn library.
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Q2. What are metrics you can use for this task
Ans. 
Metrics for evaluating machine learning tasks
• Accuracy

• Precision

• Recall

• F1 Score

• ROC AUC

• Confusion Matrix
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Q1. A presentation of a past project with followup questions
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Q2. Some questions on text classification
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If everyone is cheating you should also do it?

Q1. Everyhting about project..
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Q2. Linear vs logistic regression
Ans. 
Linear regression is used for continuous variables, while logistic regression is used for binary outcomes.
• Linear regression is used to predict a continuous outcome based on one or more input variables.

• Logistic regression is used to predict the probability of a binary outcome based on one or more input variables.

• Linear regression assumes a linear relationship between the independent and dependent variables, while logist...read more
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Q3. Normalization in dbms
Ans. 
Normalization in DBMS is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Normalization involves breaking down data into smaller, more manageable tables and establishing relationships between them.

• It helps in reducing data redundancy, minimizing data anomalies, and improving data consistency.

• There are different normal forms such as 1NF, 2NF, 3NF, BCNF, and 4NF, each with spec...read more
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Q4. List array difference etc
Ans. 
Array difference is finding the elements that are present in one array but not in another.
• Use set operations like difference to find elements in one array but not in another.

• Example: arr1 = ['a', 'b', 'c'], arr2 = ['b', 'c', 'd'], arr_diff = set(arr1) - set(arr2) = ['a']
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Q1. Dumb HR will ruin the company or maybe they behave how the company wants them to behave.
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Prior to interview some

Prior to interview some assignment provided.

Q1. How much your salary expected?
Ans. 
My salary expectation is based on my qualifications, experience, and the industry standard for Safety Officers.
• Consider my qualifications and certifications in the field

• Take into account my years of experience in safety management

• Research the average salary range for Safety Officers in the industry

• Negotiate based on the responsibilities and expectations of the role
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Q2. What you know about the company?
Ans. 
The company is a leading construction firm specializing in infrastructure projects.
• Specializes in infrastructure projects

• Known for high safety standards

• Has a strong track record of completing projects on time and within budget
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Q3. Who is Responsible for Safety?
Ans. 
Everyone in the workplace is responsible for safety, from management to employees.
• Management is responsible for providing a safe work environment and enforcing safety policies.

• Employees are responsible for following safety procedures and reporting any hazards or incidents.

• Safety officers are responsible for conducting safety inspections, training employees, and ensuring compliance with regulations.
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Q4. Who will approved and sign in Safety policy?
Ans. 
The Safety policy is approved and signed by top management.
• Safety policy is approved and signed by top management or senior leadership.

• Typically, the CEO, Managing Director, or equivalent high-ranking official signs the Safety policy.

• The Safety Officer may be responsible for drafting the policy and ensuring it aligns with regulations and best practices.
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Lesson learend event will be discussed

Once the interview completed group dicussion will be conducted for share the selection process.

Q1. Did you have experience in safety training?
Ans. 
Yes, I have extensive experience in safety training including conducting safety drills, developing safety protocols, and providing safety awareness training.
• Conducted safety drills to prepare employees for emergencies

• Developed safety protocols to ensure compliance with regulations

• Provided safety awareness training to educate employees on potential hazards

• Implemented safety measures to prevent accidents and injuries
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Q2. How you solve the problems?
Ans. 
I solve problems by analyzing the root cause, developing a plan of action, and implementing solutions effectively.
• Identify the problem and gather relevant information

• Analyze the root cause of the issue

• Develop a plan of action to address the problem

• Implement solutions effectively

• Monitor and evaluate the effectiveness of the solutions
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Q1. What ASTM standard for Block works
Ans. 
ASTM standard for Block works is ASTM C90.
• ASTM C90 is the standard specification for loadbearing concrete masonry units.

• It covers hollow and solid loadbearing concrete masonry units made from portland cement, water, and aggregates.

• The standard specifies the compressive strength, absorption, dimensions, and tolerances for concrete blocks.

• ASTM C90 also includes requirements for moisture content, density, and surface fini
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Q2. Standard grout Strength in PSI
Ans. 
Standard grout strength in PSI is typically around 2,000 to 5,000 PSI.
• Standard grout strength is usually between 2,000 to 5,000 PSI

• Higher strength grouts can have strengths up to 10,000 PSI or more

• Grout strength can vary depending on the mix design and curing conditions
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Q1. Questions about AWS services
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Q2. Data manipulation using Python
Ans. 
Python is commonly used for data manipulation tasks due to its powerful libraries like Pandas and NumPy.
• Use Pandas library for data manipulation tasks in Python

• Pandas provides data structures like DataFrame for easy manipulation

• Use NumPy for numerical operations on data arrays

• Example: df['new_column'] = df['column1'] + df['column2']
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Q1. About Yourself, education, previous work exp etc
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Q1. Technical questions Engineering, paper making
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Q2. Hydraulics, Pneumatics, CAD dwg reading
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Q1. Project management, Customer Handling, Site installations
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Q2. Troubleshooting, Performance guarantee
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Verbal Reasoning, Numerical ability, General Knowledge, English Proficiency.

Q1. Why you want to join?
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Q2. What you will bring with your previous exp and education?
Ans. 
I will bring a combination of practical experience and theoretical knowledge from my previous work and education.
• Practical experience in implementing engineering solutions

• Theoretical knowledge gained from education in engineering principles

• Ability to troubleshoot and problem solve based on past experiences

• Strong communication skills to collaborate with team members and stakeholders
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