BIMEX Engineers Interview Questions and Answers

Starters are devices used to start and control the speed of induction motors.

• Direct On-Line (DOL) starter: provides full voltage to the motor at start

• Star-Delta starter: reduces the starting current by initially connecting the motor in star configuration

• Auto-transformer starter: uses an auto-transformer to reduce the voltage during starting

• Soft starter: gradually increases the voltage to the motor to reduce starting cu...read more

Earthing is the process of connecting electrical systems to the ground to prevent electric shock and protect equipment.

• Types of earthing include plate earthing, pipe earthing, rod earthing, and strip earthing.

• Methods of earthing include neutral earthing, equipment earthing, and system earthing.

• Earthing is essential for safety in electrical systems to prevent electric shock and damage to equipment.

• Proper earthing ensure...read more

TF stands for Transformer. It is a static device used to transfer electrical energy between two or more circuits through electromagnetic induction.

• Principle of TF involves Faraday's law of electromagnetic induction.

• Types of TF include step-up, step-down, isolation, auto-transformer, etc.

• TFs are used in power distribution, voltage regulation, impedance matching, etc.

The starting current of a DOL starter is typically 6-8 times the rated current of the motor.

• The Direct-On-Line (DOL) starter is used to start induction motors.

• The starting current of a DOL starter is usually 6-8 times the rated current of the motor.

• This high starting current can cause voltage drops and stress on the electrical system.

Choose AC cables based on current rating, insulation material, and environmental conditions.

• Consider the current rating of the cable to ensure it can handle the load

• Choose the appropriate insulation material based on the application and environment

• Take into account environmental conditions such as temperature, moisture, and exposure to chemicals

• Select the right cable size to minimize voltage drop and power loss

• Ensure c...read more

Stop work application is a procedure used to halt work activities due to safety concerns or violations.

• Stop work applications are typically used when there is an imminent danger to workers or the environment.

• Workers are trained to recognize when a stop work application is necessary and how to properly implement it.

• Examples of reasons for a stop work application include unsafe working conditions, equipment malfunctions,

Scaffolding is a temporary structure used to support workers and materials during construction or maintenance work.

• Scaffolding provides a safe working platform at height

• It is typically made of metal or wood

• Different types include tube and coupler, frame, and system scaffolding

• Scaffolding must be inspected regularly for safety

Types of scaffolding include supported scaffolding, suspended scaffolding, and aerial lifts.

• Supported scaffolding is the most common type and is supported by the ground or a building structure.

• Suspended scaffolding hangs from the roof or top of a building and is commonly used for window washing or painting.

• Aerial lifts are platforms lifted by cranes or other equipment and are commonly used for tasks at height.

• Other typ...read more

Types of accidents/incidents include slips, trips, falls, machinery accidents, chemical exposures, and fires.

• Slips, trips, and falls are common in workplaces due to wet floors, cluttered walkways, or uneven surfaces.

• Machinery accidents can occur when proper safety procedures are not followed or equipment malfunctions.

• Chemical exposures may result from spills, leaks, or improper handling of hazardous substances.

• Fires ca...read more

RIBA Plan of Work is a framework used in the construction industry to outline the stages of a building project.

• RIBA stands for Royal Institute of British Architects

• It consists of 8 stages from inception to completion

• Each stage has specific tasks and deliverables

• It helps in organizing and managing the construction process efficiently

Maintain professionalism and politely decline the gifts to avoid any conflicts of interest.

• Politely thank the contractor for the gesture but explain that company policy prohibits accepting gifts.

• Suggest alternative ways the contractor can show appreciation, such as writing a thank-you note or providing feedback on their work.

• If the contractor insists on giving a gift, inform a supervisor or HR department for further gu...read more