900+ Graduate Engineer Trainee (Get) Interview Questions and Answers for Freshers

Technical interview questions on IC engines, machining operations, welding, casting, heat treatment, thermodynamics, materials, and mechanics.

• IC engine types include spark ignition (SI) and compression ignition (CI)

• Otto cycle is used in SI engines while Diesel cycle is used in CI engines

• Welding types include MIG, TIG, and stick welding

• Casting types include sand casting, investment casting, and die casting

• Heat treatment processes include annealing, quenching, and tempering

• Ther...read more

The cost of painting the wall behind me cannot be determined without additional information.

• The cost of painting a wall depends on various factors such as the size of the wall, the type of paint used, and the labor charges.

• Additional information needed includes the dimensions of the wall, the type of paint desired, and the cost of labor per square foot or hour.

• Once these details are provided, an estimate can be calculated by multiplying the area of the wall by the cost per sq...read more

Large air voids in concrete can weaken its strength and durability.

• Air voids can reduce the density of concrete, making it more porous and susceptible to water penetration.

• This can lead to freeze-thaw damage, corrosion of reinforcement, and reduced durability.

• Air voids can also weaken the compressive strength of concrete, making it more prone to cracking and failure.

• Proper compaction and curing can help minimize the formation of air voids in concrete.

• Air-entraining agents can...read more

There are several types of concrete, including plain, reinforced, pre-stressed, and lightweight.

• Plain concrete is the most basic type and is used for general construction purposes.

• Reinforced concrete has steel bars or mesh embedded in it to increase its strength.

• Pre-stressed concrete is compressed before use to increase its strength and durability.

• Lightweight concrete is made with lightweight aggregates, such as expanded clay or shale, to reduce its weight and increase its in...read more

M25 concrete is a mix of concrete with a compressive strength of 25 MPa.

• M25 concrete is commonly used in construction for foundations, columns, and beams.

• It is made by mixing cement, sand, and coarse aggregates in a ratio of 1:1:2.

• The water-cement ratio should be around 0.45 for M25 concrete.

• The compressive strength of M25 concrete is achieved after 28 days of curing.

• M25 concrete is suitable for moderate exposure conditions.

Count the total number of distinct subarrays with at most K odd elements in an array.

• Iterate through all subarrays and count the number of odd elements in each subarray.

• Use a hashmap to keep track of the count of distinct subarrays with at most K odd elements.

• Return the total count of distinct subarrays for each test case.

If the transit mixer is delayed in reaching the site before the i.s.t. of cement, I would take the following actions.

• Contact the transit mixer driver to inquire about the delay and estimated time of arrival.

• Inform the site supervisor and project manager about the delay.

• Evaluate the impact of the delay on the construction schedule and adjust accordingly.

• Consider alternative options such as sourcing cement from a nearby supplier or rescheduling the concrete pouring.

• Coordinate w...read more

After receiving the plan of a construction, the following steps should be followed.

• Review the plan thoroughly to understand the scope and requirements of the project.

• Identify any potential issues or conflicts in the plan and communicate them to the relevant stakeholders.

• Create a detailed project schedule and timeline based on the plan.

• Allocate resources and manpower according to the requirements of the plan.

• Obtain necessary permits and approvals for the construction.

• Procure m...read more

Different types of pumps and their differences.

• Centrifugal pumps: used for low viscosity fluids, high flow rates, low pressure

• Positive displacement pumps: used for high viscosity fluids, low flow rates, high pressure

• Axial flow pumps: used for high flow rates, low pressure, low viscosity fluids

• Mixed flow pumps: used for medium flow rates and pressures

• Jet pumps: used for pumping fluids with high solids content

• Differences include design, flow rate, pressure, viscosity, and appli...read more

As a mechanical engineer, I would consider parameters such as engine type, fuel efficiency, safety features, durability, and maintenance costs.

• Engine type - petrol, diesel, electric, hybrid

• Fuel efficiency - mileage, fuel consumption

• Safety features - airbags, ABS, EBD, ESC

• Durability - build quality, material used

• Maintenance costs - service intervals, spare parts availability

Strength of concrete refers to its ability to resist external forces and maintain its shape and integrity.

• Strength of concrete is measured in terms of its compressive strength, which is the maximum amount of force it can withstand before it fails.

• The strength of concrete depends on the ratio of cement, water, and aggregates used in its mixture.

• Concrete gains strength over time as it cures and hardens, with most of the strength gained in the first 28 days.

• The strength of concr...read more

The procedure for form work removal on site involves several steps to ensure safety and quality of the structure.

• Inspect the concrete for strength and stability

• Remove the formwork in a systematic manner to avoid damage to the concrete

• Ensure that the removal process does not cause any stress or strain on the structure

• Dispose of the formwork material properly

• Clean and prepare the area for the next phase of construction

25 KV AC is more efficient for railways due to lower transmission losses and higher power carrying capacity.

• 25 KV AC has lower transmission losses compared to 750V DC

• 25 KV AC can carry higher power compared to 750V DC

• 25 KV AC is more suitable for long distance and high-speed trains

• 750V DC is more suitable for urban and suburban railways

• Examples: Indian Railways uses 25 KV AC for long distance and high-speed trains, while Mumbai suburban railways use 750V DC

To join 2 C-Sections facing towards each other, align the two sections and use appropriate fasteners.

• Align the two C-Sections so that they are facing towards each other

• Ensure that the edges of the sections are properly aligned

• Use appropriate fasteners such as screws, bolts, or rivets to join the sections together

• Ensure that the fasteners are securely tightened to provide a strong connection

• Consider using additional reinforcement methods like welding or adhesive bonding for ad...read more

Cut the cake twice horizontally and once vertically to make 8 pieces.

• Make two horizontal cuts to get three layers

• Make one vertical cut through the center

• Total 8 pieces will be obtained

The slump value for pumpable concrete varies depending on the mix design and application.

• Slump value is the measure of the consistency of concrete.

• Pumpable concrete typically has a higher slump value than traditional concrete.

• The slump value for pumpable concrete can range from 150mm to 200mm.

• The mix design and application will determine the appropriate slump value for pumpable concrete.

The difference in heat conduction between a hot bar placed in still liquid and in moving liquid.

• In still liquid, heat conduction occurs primarily through conduction and natural convection.

• In moving liquid, heat conduction occurs through conduction, forced convection, and turbulence.

• Moving liquid enhances heat transfer due to increased fluid motion and mixing.

• The rate of heat conduction is generally higher in moving liquid compared to still liquid.

• Examples: Stirring a hot drin...read more

Static loads do not change with time, while dynamic loads involve at least one changing parameter. Fatigue failure occurs when a body is subjected to continuous dynamic loading.

• Static loads have constant force magnitude, direction, and point of application

• Dynamic loads involve changes in at least one of the load parameters over time

• Fatigue failure occurs when a body is subjected to continuous dynamic loading, leading to failure after a certain number of cycles

• Example: Bending...read more

Wire drawing at room temperature is cold working for both steel and tin rods.

• Wire drawing involves pulling a metal rod through a die to reduce its diameter.

• Cold working is a process where the metal is deformed at room temperature.

• Hot working is a process where the metal is deformed at high temperatures.

• Steel and tin rods can be cold worked at room temperature through wire drawing.

• Hot working is typically done at high temperatures to reduce the force required for deformation.

Welding aluminium is difficult due to its high thermal conductivity, low melting point, and susceptibility to distortion and cracking.

• Aluminium has a high thermal conductivity, which means it dissipates heat quickly, making it difficult to maintain a consistent temperature during welding.

• Aluminium has a low melting point, which means it can easily become overheated and distorted during welding.

• Aluminium is susceptible to cracking due to its high shrinkage rate and low ductili...read more

Tests used for checking the bearing capacity of soil include plate load test, standard penetration test, and cone penetration test.

• Plate load test: Measures the load-bearing capacity of soil by applying a load on a steel plate placed on the ground surface.

• Standard penetration test: Determines the resistance of soil to penetration by a standard sampler driven by a standard hammer.

• Cone penetration test: Measures the resistance of soil to penetration by a cone-shaped penetromete...read more

Tests carried out on aggregates

• Sieve analysis to determine particle size distribution

• Water absorption test to measure the porosity of aggregates

• Aggregate crushing value test to measure the strength of aggregates

• Los Angeles abrasion test to measure the resistance to wear and tear

• Soundness test to measure the resistance to weathering

• Alkali-silica reaction test to determine the potential for harmful chemical reaction

• Organic impurities test to detect the presence of organic matte...read more

Creating an HTML input field with inline CSS for styling.

• Use the <input> tag to create an input field. Example: <input type='text' placeholder='Enter your name'>.

• Apply inline CSS using the 'style' attribute. Example: <input type='text' style='border: 1px solid #ccc; padding: 10px;'>.

• You can customize the appearance further with properties like 'width', 'font-size', and 'background-color'.

• Example of a styled input field: <input type='text' style='width: 200px; font-size: 16px;...read more

Factor of safety in designing ropes, gears, and belt drives.

• Factor of safety is the ratio of the maximum load a component can handle to the actual load it is subjected to.

• It ensures that the component does not fail under normal operating conditions.

• For ropes, a factor of safety of 10 is common, while for gears and belt drives, it is usually between 1.5 to 2.

• Factors that affect the factor of safety include material properties, operating conditions, and the consequences of fail...read more

Answering questions on Industrial Engineering and layouts

• Yes, I have taken a course on Industrial Engineering

• Different layouts include process layout, product layout, and fixed position layout

• Just in time is a manufacturing philosophy where materials are delivered just in time for production

• It aims to reduce inventory costs and increase efficiency

• For example, Toyota uses just in time manufacturing to reduce waste and improve production speed

The state when there is no effect of pressure in a pipeline is called atmospheric pressure.

• Atmospheric pressure is the pressure exerted by the weight of air in the atmosphere.

• When the pressure inside the pipeline is equal to the atmospheric pressure outside, there is no effect of pressure.

• This state is also known as zero gauge pressure or absolute pressure.

• It is important to maintain this state to prevent leaks or bursts in the pipeline.

My projects align with Reliance's focus on innovation, sustainability, and efficiency.

• I have worked on projects that involve developing sustainable energy solutions, which aligns with Reliance's focus on sustainability.

• I have also worked on projects that involve optimizing processes and reducing waste, which aligns with Reliance's focus on efficiency.

• For example, I developed a system to monitor and optimize energy usage in a manufacturing plant, which resulted in significant ...read more