GKN Assistant Executive Engineer Interview Questions and Answers

Time constant of an RC circuit is the time taken for the voltage across the capacitor to reach approximately 63.2% of its final value.

• Time constant (τ) is calculated as the product of resistance (R) and capacitance (C) in the circuit, τ = R * C.

• It represents the rate at which the capacitor charges or discharges in response to a step change in voltage.

• A smaller time constant indicates a faster response of the circuit, w...read more

Comparators are electronic circuits that compare two voltages and output a digital signal based on the comparison. Band pass filter circuit allows only a certain range of frequencies to pass through.

• Comparators are used in applications such as voltage level detection, waveform shaping, and pulse width modulation.

• They have two input terminals for the voltages to be compared and one output terminal for the digital signal...read more

Cv is the coefficient of friction, a dimensionless value that represents the ratio of the force of friction between two bodies in contact to the force pressing them together.

• Cv is used to quantify the frictional characteristics of a material or surface.

• It is calculated by dividing the force of friction by the normal force acting between the two surfaces.

• A higher Cv value indicates a higher frictional force between the ...read more

The unit of flow rate is typically measured in volume per unit time, such as liters per minute or cubic meters per second.

• Flow rate is commonly measured in units like liters per minute (L/min), cubic meters per second (m^3/s), or gallons per hour (gph).

• It represents the amount of fluid passing through a specific point in a given time period.

• Flow rate can also be expressed in terms of mass per unit time, such as kilogra...read more