HDFC Bank Interview Questions and Answers

At zero modulation index, the transmitted current will be zero. At modulation index m, the transmitted current will be proportional to m.

• At zero modulation index, Ic is the transmitter and the transmitted current is zero.

• At modulation index m, the transmitted current will be proportional to m.

• The relationship between modulation index and transmitted current can be expressed as: I_transmitted = m * Ic.

Pressure is the force applied on a surface, while stress is the internal resistance of a material to deformation.

• Pressure is an external force per unit area, while stress is an internal force per unit area.

• Pressure can be measured using instruments like pressure gauges, while stress is calculated using formulas.

• Pressure is typically exerted on fluids or gases, while stress is experienced by solid materials.

• Examples of pressure include atmospheric pressure, blood pressure, and...read more

Stress is a measure of the internal force experienced by a material due to external factors.

• Stress is the force per unit area exerted on a material.

• It is a measure of the internal resistance of a material to deformation.

• Stress can be caused by external factors such as applied forces, temperature changes, or pressure.

• The unit of stress is typically expressed in pascals (Pa) or pounds per square inch (psi).

• For example, when a weight is placed on a table, the stress on the table...read more

Optimized code for finding pairs in an array that sum up to a given value

• Use a hash table to store the difference between the target value and each element in the array

• Iterate through the array and check if the current element is in the hash table

• If it is, then a pair with the target sum has been found

• Time complexity can be reduced to O(n) using this approach

A block diagram of a communication system shows the components and their connections for transmitting and receiving information.

• Components include transmitter, channel, receiver, and noise source

• Transmitter converts message signal into a form suitable for transmission

• Channel carries the signal from transmitter to receiver

• Receiver converts the received signal back into the original message signal

• Noise source introduces unwanted disturbances in the communication process