80+ Graduate Apprentice Trainee Interview Questions and Answers

The flywheel is a mechanical device that stores rotational energy and helps in maintaining the engine's speed and stability.

• The flywheel is connected to the crankshaft of the engine and stores excess energy during the power stroke.

• During the compression stroke, the stored energy in the flywheel helps in maintaining the engine's momentum and smooth operation.

• The flywheel also acts as a rotational inertia, reducing speed fluctuations and providing a consistent power output.

• A sm...read more

Answers to questions related to electrical engineering.

• Higher voltage is preferred for transportation to reduce power loss and increase efficiency.

• House wiring is done in parallel to ensure that if one appliance fails, others can still function.

• Transformers are designed with safety features such as overcurrent protection and grounding to prevent electrical hazards.

• Doubly excited motors are used in applications where high torque and precise control are required.

• Neutral is a cu...read more

Heat is transferred in convection through the movement of a fluid medium.

• Convection is a mode of heat transfer that occurs in fluids (liquids or gases).

• Heat is transferred through the movement of the fluid particles.

• Hot fluid rises, creating a convection current, while cold fluid sinks.

• Examples of convection include boiling water, wind, and ocean currents.

Three point linkage is a mechanism used in tractors to connect and control implements, providing stability and flexibility.

• Three point linkage is a system of three hydraulic arms that connect the tractor to an implement.

• It allows the implement to be raised, lowered, and tilted as needed.

• The three points of connection provide stability and prevent the implement from swaying or tipping.

• The top link controls the vertical movement, while the lower links control the lateral moveme...read more

Connecting 2 phases in a single phase induction motor will cause the motor to run inefficiently and may damage the motor.

• Single phase induction motors are designed to operate on a single phase power supply.

• Connecting 2 phases will cause an unbalanced magnetic field, resulting in inefficient operation.

• The motor may also draw excessive current, leading to overheating and damage.

• Proper wiring and connection to a single phase power supply is essential for safe and efficient opera...read more

Rear tires are big in tractors to provide better traction, stability, and weight distribution.

• Big rear tires offer increased traction, allowing tractors to navigate through rough terrains and pull heavy loads.

• The larger surface area of the rear tires distributes the weight of the tractor more evenly, reducing soil compaction and preventing sinking in soft ground.

• Bigger tires also enhance stability, preventing the tractor from tipping over during sharp turns or when carrying h...read more

To handle a worker not obeying instructions, address the issue directly, provide clear expectations, offer support and guidance, and consider disciplinary actions if necessary.

• Communicate with the worker to understand the reasons for not obeying instructions

• Reiterate the importance of following instructions and the impact on the team and organization

• Provide clear and specific instructions, ensuring they are understood

• Offer support and guidance to help the worker meet expectat...read more

To restart a diesel engine, check fuel supply, battery, and starter motor. Bleed the fuel system if necessary.

• Check fuel supply and ensure there is enough fuel in the tank

• Check the battery and starter motor for any issues

• If the engine is not getting fuel, bleed the fuel system to remove any air pockets

• Check for any loose connections or damaged wires

• If all else fails, seek professional help

Symbols on a drawing sheet represent various elements or actions in a visual representation.

• Symbols provide a concise way to convey information in technical drawings.

• They can represent objects, dimensions, materials, processes, or instructions.

• For example, a circle with an arrow can indicate a rotational movement.

• A triangle with a number can represent a specific angle.

• Symbols are standardized and universally understood in engineering and design fields.

Ammeter is used to measure small amounts of current.

• An ammeter is a device used to measure the flow of electric current in a circuit.

• It is connected in series with the circuit to measure the current.

• Ammeters have a low resistance to prevent any significant voltage drop.

• They are available in both analog and digital forms.

• Examples of ammeters include galvanometers, clamp meters, and multimeters.

Types of pumps include centrifugal, positive displacement, and axial flow pumps. Each has a unique characteristic curve.

• Centrifugal pumps are commonly used in industrial applications and have a steep characteristic curve.

• Positive displacement pumps are used for high viscosity fluids and have a nearly constant flow rate.

• Axial flow pumps are used for low head, high flow rate applications and have a flat characteristic curve.

• Characteristic curves show the relationship between fl...read more

Ashok Leyland unit 2 is a manufacturing unit of Ashok Leyland located in Pantnagar, Uttarakhand.

• Ashok Leyland unit 2 is a part of Ashok Leyland, a leading commercial vehicle manufacturer in India.

• It is located in Pantnagar, Uttarakhand and was established in 2002.

• The unit manufactures a range of commercial vehicles including trucks, buses, and light commercial vehicles.

• It has a production capacity of 75,000 vehicles per annum.

• The unit has won several awards for its manufactur...read more

A power plant generates electricity by converting mechanical energy into electrical energy using a generator. The speed of the generator is controlled by a device called a governor.

• A power plant uses a fuel source, such as coal, natural gas, or nuclear energy, to heat water and produce steam.

• The steam drives a turbine, which is connected to a generator that produces electricity.

• The speed of the generator is controlled by a device called a governor, which regulates the amount ...read more

I am a graduate apprentice trainee. I have knowledge in electronics and electrical engineering.

• I have completed my graduation in electronics and electrical engineering.

• I have practical knowledge in designing and implementing electronic circuits.

• I am familiar with the concept of bridge rectifiers and their applications.

• Regarding the question, a bridge rectifier can be used with a tubelight to convert AC to DC.

• However, a ballast is required to limit the current and voltage to t...read more

Compression ratio is the ratio of the volume of the combustion chamber from its largest capacity to its smallest capacity.

• Compression ratio is an important factor in determining the efficiency and power output of an engine.

• In SI engines, the compression ratio is typically between 8:1 to 12:1.

• In CI engines, the compression ratio is typically between 14:1 to 25:1.

• Higher compression ratios lead to higher thermal efficiency and power output, but also require higher octane fuel in...read more

Temperature sensors measure temperature and provide feedback to control systems like DCS and PLCs to regulate valves using PID control.

• Temperature sensors are used to measure temperature in various applications.

• DCS (Distributed Control System) and PLC (Programmable Logic Controller) use temperature sensor feedback to regulate valves.

• PID (Proportional-Integral-Derivative) control is used to adjust valve position based on temperature sensor feedback.

• Different types of temperatu...read more

Critical dimensions in drawing refer to the measurements that are essential for the proper functioning and fit of a component or product.

• Critical dimensions ensure that the component or product meets the required specifications and tolerances.

• These dimensions are crucial for the proper assembly and functioning of the parts.

• They are often specified with tight tolerances to ensure accuracy and reliability.

• Examples of critical dimensions include hole diameters, shaft lengths, an...read more

A boiler is a device used to generate steam or hot water for heating or power generation. There are various types of pumps used in boilers.

• A boiler is a closed vessel that heats water or other fluids to generate steam or hot water.

• It is commonly used in industries for heating purposes or to generate power.

• Boilers can be classified into different types based on their design and fuel used, such as fire-tube boilers, water-tube boilers, and electric boilers.

• Fire-tube boilers hav...read more

Module, pressure angle, addendum, and dedendum are terms used in gear design.

• Module is the measure of the size of a gear tooth.

• Pressure angle is the angle between the line of action and a tangent to the pitch circle.

• Addendum is the radial distance between the pitch circle and the top of the tooth.

• Dedendum is the radial distance between the pitch circle and the bottom of the tooth.

• These terms are important in designing gears that mesh correctly and transmit power efficiently.

Distillation is a process of separating components of a mixture based on their boiling points. McCabe Thiele method is a graphical method used for designing distillation columns.

• Distillation is used in various industries such as petroleum, chemical, and food processing.

• There are two main types of distillation: batch distillation and continuous distillation.

• McCabe Thiele method is used to determine the number of theoretical plates required for a distillation column.

• The method ...read more

The interview questions were related to quality tools, rework, and automobile parts.

• Quality tools are used to ensure that the product meets the required standards.

• 8D report is a problem-solving approach used to identify, correct, and prevent problems.

• Rework can be done to fix the defects in the product.

• Automobile parts are the components used in the manufacturing of vehicles.

• Examples of automobile parts include engines, brakes, suspension, and steering systems.

A 4*4 vehicle is a four-wheel drive vehicle that uses all four wheels to provide power to the vehicle.

• A 4*4 vehicle is also known as a four-wheel drive vehicle.

• It uses all four wheels to provide power to the vehicle.

• This allows the vehicle to have better traction and control in off-road or slippery conditions.

• The working principle involves a transfer case that distributes power to both the front and rear axles.

• Examples of 4*4 vehicles include SUVs, pickup trucks, and off-road...read more

The least count of screw gauge is the smallest measurement that can be read on the instrument.

• It is the difference between the pitch of the screw and the distance between two consecutive graduations on the circular scale.

• It is usually expressed in millimeters or fractions of millimeters.

• The least count of a screw gauge can vary depending on the instrument's design and purpose.

• For example, a micrometer screw gauge used for measuring small distances may have a least count of 0....read more

Strength of material refers to the ability of a material to withstand external forces without breaking or deforming.

• It is an important concept in engineering and physics

• It is measured in terms of stress and strain

• Factors that affect strength of material include temperature, pressure, and composition

• Examples of materials with high strength include steel and titanium

• Testing methods for strength of material include tensile testing and compression testing

Our company produces a wide range of products for various industries.

• We produce consumer electronics such as smartphones and laptops.

• We also manufacture home appliances like refrigerators and washing machines.

• Our company produces industrial equipment such as generators and pumps.

• We have a line of automotive products including engines and transmissions.

• We also produce chemicals and materials for various applications.

The stipend and time period for the Graduate Apprentice Trainee position.

• The stipend and time period may vary depending on the company and industry.

• Generally, the stipend for Graduate Apprentice Trainees ranges from Rs. 8,000 to Rs. 15,000 per month.

• The time period for the training can be anywhere from 6 months to 1 year.

• Some companies may offer additional benefits such as accommodation and transportation.

• It's important to research the specific company and industry to get a b...read more

Discussing salary expectations can reflect your value and market research, ensuring alignment with the role's responsibilities.

• Research industry standards for similar roles to set realistic expectations.

• Consider your experience and skills; for example, if you have specialized certifications, you might justify a higher salary.

• Be open to negotiation; for instance, if the base salary is lower, you could discuss additional benefits like bonuses or flexible hours.

• Express your will...read more