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posted on 18 Sep 2024
I applied via Approached by Company and was interviewed in Aug 2024. There was 1 interview round.
An gate logic is a digital logic gate that outputs true only when all inputs are true.
AND gate has two or more inputs and one output
Output is true only when all inputs are true
Example: A AND B = Y, where Y is true only when both A and B are true
I applied via Approached by Company and was interviewed in Apr 2024. There were 2 interview rounds.
I have over 10 years of experience in geotechnical engineering, working on various projects including foundation design, slope stability analysis, and ground improvement techniques.
Managed geotechnical investigations for large-scale infrastructure projects
Performed foundation design calculations for high-rise buildings
Conducted slope stability analysis for highway embankments
Implemented ground improvement techniques su...
Liquefaction is a phenomenon where soil loses its strength and stiffness due to increased pore water pressure during an earthquake.
Liquefaction occurs when loosely packed, water-saturated sediments lose their strength and behave like a liquid.
It can lead to ground settlement, tilting of buildings, and even landslides.
Common in areas with loose, sandy soils, such as coastal regions or river deltas.
Examples include the 1...
Pile foundations are deep foundations that transfer loads to deeper, more competent soil or rock strata, while shallow foundations transfer loads to the near-surface soils.
Pile foundations are used when the soil at shallow depths is not capable of supporting the structure's load.
Shallow foundations are typically used for smaller structures with light loads and where the soil is strong enough to support the load.
Pile fo...
I applied via Approached by Company and was interviewed in Apr 2024. There was 1 interview round.
SIF stands for Stress Intensification Factor. B31.1 and B31.3 are ASME codes for power piping and process piping, respectively.
SIF is a factor used to account for the increase in stress at a specific location in a piping system due to various factors such as geometry, loads, and material properties.
B31.1 is the ASME code for power piping, which covers piping systems typically found in power plants, industrial facilitie...
Idom interview questions for popular designations
I was interviewed in Jan 2024.
Designing water resources & waste water systems involves planning, analyzing, and implementing infrastructure to manage water supply and waste disposal.
Conducting site surveys to assess water availability and waste water disposal needs
Designing pipelines, pumps, and treatment facilities to transport and treat water and waste water
Ensuring compliance with environmental regulations and sustainability practices
Collaborati...
Reviewing drawings of water resources systems involves analyzing plans, layouts, and specifications to ensure proper design and functionality.
Examine drawings for accuracy and compliance with regulations
Check dimensions, materials, and equipment specified in the plans
Verify that the system design meets the project requirements
Identify any potential issues or conflicts in the drawings
Collaborate with other engineers and
I applied via Naukri.com and was interviewed in Jan 2024. There was 1 interview round.
The calculation to select electrical cable involves considering factors such as current rating, voltage drop, and environmental conditions.
Determine the maximum current the cable will carry based on the load requirements
Calculate the voltage drop to ensure it is within acceptable limits
Consider the environmental conditions like temperature, moisture, and chemical exposure
Select a cable with appropriate conductor size, ...
I applied via Naukri.com and was interviewed in Jun 2023. There were 3 interview rounds.
I applied via Recruitment Consulltant and was interviewed before Feb 2023. There was 1 interview round.
SIF stands for Stress Intensification Factor. It is a dimensionless factor used in piping stress analysis to account for local stress concentrations.
SIF is used to calculate the maximum stress in a piping system at locations where there are changes in geometry, such as elbows, tees, and reducers.
It is a multiplier applied to the nominal stress to account for the increased stress caused by the local geometry.
SIF values ...
posted on 17 Mar 2021
I applied via Naukri.com and was interviewed in Feb 2021. There was 1 interview round.
The input required for a single line diagram includes information about the electrical system components and their connections.
Information about the electrical system components such as generators, transformers, switchgear, and loads
The connections between these components including the type of connection and the ratings of the equipment
The voltage level of the system and the type of system grounding
The protective devi...
Motor feeder and power feeder requirements are essential for electrical design engineers to ensure proper functioning of electrical systems.
Motor feeder requirements include selecting the appropriate motor size, voltage, and current rating.
Power feeder requirements involve determining the load requirements and selecting the appropriate cable size and voltage drop.
Proper coordination and protection devices such as circu...
Hazardous area classification involves categorizing areas based on the presence of flammable gases, vapors, or dusts.
Hazardous areas are classified based on the likelihood of the presence of flammable substances.
Temperature Class refers to the maximum surface temperature of equipment that can be used in a hazardous area.
Hazardous areas are categorized into zones based on the frequency and duration of the presence of fl...
1.25 FLA is taken for circuit breaker and 1.5 times for contactor to ensure protection against overloading and short circuits.
1.25 FLA is the maximum current that a circuit breaker can handle without tripping.
1.5 times FLA is taken for contactor to ensure that it can handle the inrush current during motor starting.
This also provides protection against short circuits and overloading.
For example, if the full load current...
Percentage Impedance is a measure of the voltage drop in a transformer during a short circuit. It determines the ability of the transformer to withstand short circuit currents.
Percentage Impedance is the ratio of the rated voltage of a transformer to the short circuit current at its terminals, expressed as a percentage.
It represents the internal impedance of the transformer and is usually provided by the manufacturer.
A...
Protection schemes for transformers and generators.
Overcurrent protection
Differential protection
Distance protection
Restricted earth fault protection
Backup protection
Buchholz relay protection
Thermal overload protection
Under/over voltage protection
Neutral grounding protection
Cable sizing is calculated using the formula for voltage drop, which takes into account resistive and inductive drop. Voltage drop is limited to 5% to ensure efficient power transmission.
Cable sizing is determined by calculating the voltage drop using the formula: VD = (I * L * R * 2) / 1000
Resistive drop is calculated using Ohm's Law: Vr = I * R
Inductive drop is calculated using the formula: Vi = I * X
Voltage drop is ...
Earthing calculation standards and resistances for substation and lightning protection.
Earthing calculation involves determining the resistance of the earth electrode system.
The standard used for earthing calculation is IEEE 80.
The resistance in substation should be less than 1 ohm.
The resistance for lightning protection should be less than 10 ohms.
Factors affecting earthing calculation include soil resistivity, electr...
The motor contribution to the short circuit current is significant and needs to be considered in electrical design.
The motor's impedance affects the short circuit current level.
The motor's starting current can cause a significant increase in short circuit current.
The motor's location in the electrical system can affect its contribution to the short circuit current.
The motor's size and type can also impact its contribut...
Types of contactors include AC, DC, reversing, and definite purpose. Maximum efficiency of transformer depends on load and design.
AC contactors are used for alternating current circuits
DC contactors are used for direct current circuits
Reversing contactors are used to reverse the direction of current flow
Definite purpose contactors are designed for specific applications
Maximum efficiency of transformer is achieved at fu...
Non-linear loads are electrical devices that do not have a linear relationship between the voltage and current.
Non-linear loads draw non-sinusoidal current waveforms.
They can cause harmonic distortion in the electrical system.
Examples of non-linear loads include computers, televisions, and variable speed drives.
Linear loads have a linear relationship between voltage and current, such as incandescent light bulbs.
Linear
Explanation of lighting calculation, light loss factor, utilisation factor, and minimum lux required in substation.
Lighting calculation involves determining the amount of light required in a space.
Light loss factor is the reduction in light output due to factors such as dirt, dust, and aging of lamps.
Utilisation factor is the ratio of light received by a surface to the total light output of the lamps.
Formula for lighti...
APFC stands for Automatic Power Factor Correction. Series reactor is a device used to limit current flow.
APFC is a system that automatically corrects the power factor of an electrical network.
It uses capacitors to improve the power factor and reduce energy consumption.
Series reactor is a device that is used to limit the flow of current in a circuit.
It is used to protect equipment from overvoltage and to reduce harmonic...
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Piping Designer
53
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Piping Engineer
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Structural Engineer
14
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Electrical Engineer
14
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Civil Structural Engineer
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