Technosoft Engineering Projects Limited Senior Design Engineer 1 Interview Questions and Answers

The current unit refers to the standard unit of measurement being used in a particular context.

• The current unit can vary depending on the field or industry, such as inches in construction or Celsius in weather forecasting.

• It is important to clarify the current unit to ensure accurate communication and data analysis.

• Examples of current units include meters for length, kilograms for weight, and seconds for time.

The resistance unit is the ohm (Ω), which measures the opposition to the flow of electric current.

• The resistance unit is measured in ohms (Ω)

• It represents the opposition to the flow of electric current

• Resistance can be calculated using Ohm's Law: R = V/I, where R is resistance, V is voltage, and I is current

CT current can be calculated by dividing the primary current by the turns ratio of the current transformer.

• CT current = Primary current / Turns ratio

• Primary current is the current flowing through the primary conductor

• Turns ratio is the ratio of the number of turns in the primary winding to the number of turns in the secondary winding

Lockout is a safety procedure used to ensure that machinery or equipment is properly shut off and cannot be restarted until maintenance or servicing is completed.

• Lockout involves isolating energy sources to prevent accidental startup.

• Lockout devices like padlocks and tags are used to physically lock equipment.

• Lockout procedures must be followed to prevent accidents and injuries.

• Examples of lockout include locking out e...read more

IP65 for panel refers to the level of protection against dust and water ingress.

• IP65 rating means the panel is dust tight and protected against water jets from any direction.

• The first digit '6' indicates the level of protection against solid objects like dust.

• The second digit '5' indicates the level of protection against water ingress.

• Commonly used in outdoor or industrial applications where the panel may be exposed to...read more

TCS and Master Trip Relay are protective devices used in electrical systems to prevent damage during faults.

• TCS stands for Time Current Characteristic Relay, which operates based on the relationship between time and current to trip the circuit breaker during faults.

• Master Trip Relay is a relay that receives signals from various protective relays and initiates a trip signal to disconnect the circuit in case of a fault.

• B...read more

LSC 2A and LSC 2B are standards for lighting in commercial and industrial buildings.

• LSC 2A and LSC 2B are part of the Lighting Power Density (LPD) requirements in building codes.

• LSC 2A is for commercial buildings while LSC 2B is for industrial buildings.

• They specify the maximum allowable power consumption for lighting per unit area in a building.

• For example, LSC 2A may require a maximum LPD of 0.9 watts per square foot

REF protection is used to prevent damage to equipment from electrical faults. High impedance protection is used for sensitive equipment, while low impedance protection is used for power systems.

• REF protection is used to detect ground faults and prevent damage to equipment.

• High impedance protection is used for sensitive equipment that requires high accuracy and low fault currents.

• Low impedance protection is used for pow...read more

ANSI codes are used to identify various types of protection devices in electrical systems.

• ANSI code 50/51 is for instantaneous overcurrent protection

• ANSI code 67 is for directional power protection

• ANSI code 87 is for differential protection

• ANSI code 59 is for overvoltage protection

Motor selection for rotary table involves considering torque requirements, speed, size constraints, and control system compatibility.

• Consider torque requirements for the rotary table based on load and acceleration/deceleration needs

• Select a motor with appropriate speed capabilities to meet the desired rotation speed

• Ensure the motor size fits within the constraints of the rotary table design

• Check compatibility with the ...read more

I have 3 years of experience in sheet metal work, including designing and fabricating components for various projects.

• Experience in designing sheet metal components using CAD software

• Knowledge of different types of sheet metal materials and their properties

• Hands-on experience in fabricating sheet metal parts using various tools and techniques

• Ability to interpret engineering drawings and specifications accurately

• Experie...read more

PLC and card selection depends on the application requirements and budget.

• Identify the required inputs and outputs

• Consider the communication protocols needed

• Evaluate the processing power and memory requirements

• Determine the budget and cost of ownership

• Research and compare different brands and models

• Consider the availability of technical support and spare parts

• Ensure compatibility with existing systems

• Consider the envir