NPD Engineer Interview Questions and Answers for Freshers

Aspect ratio is the ratio of the longer side of a rectangle to its shorter side, while area ratio is the ratio of the total area of a shape to the area of a reference shape.

• Aspect ratio is calculated by dividing the length of the longer side by the length of the shorter side.

• Area ratio is calculated by dividing the total area of a shape by the area of a reference shape.

• Aspect ratio formula: Aspect Ratio = Length of Longer Side / Length of Shorter Side

• Area ratio formula: Area ...read more

Gears are typically made of steel, while shafts can be made of steel, aluminum, or other materials depending on application.

• Gears are commonly made of steel due to its strength and durability.

• Shafts can be made of steel, aluminum, or other materials based on factors like load capacity, speed, and cost.

• Steel gears are often heat treated for increased hardness and wear resistance.

• Aluminum shafts are lightweight and corrosion-resistant, making them suitable for certain applicati...read more

CPH stands for Cycles Per Hour, which is a measure of how many cycles a machine can complete in one hour.

• CPH is used to measure the productivity and efficiency of a machine.

• It is calculated by dividing the total number of cycles completed by the machine in one hour by the total operating time in hours.

• For example, if a machine completes 500 cycles in one hour, its CPH would be 500.

• CPH can vary depending on the type of machine and its design.