Knorr-Bremse CAE Engineer Interview Questions and Answers

Mechanical vibration refers to the oscillation or movement of an object or structure due to an applied force or disturbance.

• Mechanical vibration is the back-and-forth motion of an object or structure.

• It occurs when an external force or disturbance is applied to the object.

• Vibration can be caused by various factors such as machinery, engines, earthquakes, or even human activities.

• It can have both beneficial and detrimen...read more

Frequency is the number of vibrations per unit of time, while vibration is the oscillation or movement back and forth of an object.

• Frequency refers to the rate at which an object vibrates or oscillates.

• Vibration is the physical movement or oscillation of an object.

• Frequency is measured in hertz (Hz), while vibration is measured in amplitude or displacement.

• Frequency can be constant or varying, while vibration can have ...read more

Density is the measure of mass per unit volume. Weight can be calculated using density and volume.

• Density is calculated by dividing the mass of an object by its volume.

• Weight can be calculated using the formula: weight = density x volume x gravity

• Gravity is a constant value of 9.81 m/s^2 on Earth.

• For example, the weight of a 1 cubic meter block of iron with a density of 7.87 g/cm^3 would be 77,910 N.

Pascal's law states that pressure applied to a fluid in a confined space is transmitted equally in all directions.

• Pascal's law is a fundamental principle in fluid mechanics.

• It states that when pressure is applied to a fluid in a closed container, the pressure is transmitted equally in all directions.

• This means that if you apply pressure to one part of a fluid, the entire fluid will experience the same increase in press...read more

Atmospheric pressure refers to the force exerted by the weight of the air in the Earth's atmosphere.

• Atmospheric pressure is the pressure exerted by the weight of the air above a given point on the Earth's surface.

• It is caused by the gravitational attraction of the Earth on the air molecules.

• At sea level, the average atmospheric pressure is about 1013.25 millibars or 14.7 pounds per square inch (psi).

• As you go higher in...read more

Progressive stripline layout is a type of transmission line layout used in high-frequency circuits.

• Progressive stripline layout is used to reduce the size of transmission lines in high-frequency circuits.

• It involves gradually increasing the width of the stripline as it approaches the load.

• This helps to reduce the impedance mismatch and improve signal integrity.

• The layout is commonly used in microwave and RF circuits.

• Ex...read more