Hindalco Industries Maintenance Engineer Interview Questions and Answers

Hydraulics is a branch of engineering that deals with the mechanical properties of liquids, especially water or oil, and their applications.

• Hydraulics involves the study of fluid mechanics and the behavior of liquids under pressure.

• It is used in various applications such as hydraulic machinery, hydraulic systems, and hydraulic power transmission.

• Hydraulic systems use fluid pressure to generate, control, and transmit po...read more

Control valves are used to regulate the flow, pressure, temperature, or level of a fluid in a system.

• There are several types of control valves, including globe valves, butterfly valves, ball valves, and plug valves.

• Globe valves are commonly used for throttling and regulating flow.

• Butterfly valves are often used for large flow rates and low-pressure applications.

• Ball valves provide quick shut-off and are suitable for on...read more

Helical gearboxes are commonly used in the steel industry.

• Helical gearboxes are preferred in the steel industry due to their high efficiency and smooth operation.

• These gearboxes provide better load distribution and reduce noise and vibration.

• They are capable of handling heavy loads and high torque requirements.

• Helical gearboxes are commonly used in steel rolling mills, steel processing plants, and other steel manufactu

Check in bearing is a type of bearing that allows axial movement while preventing radial movement.

• Check in bearing is designed to accommodate axial loads.

• It allows movement in one direction while preventing movement in the opposite direction.

• This type of bearing is commonly used in applications where axial displacement is required, such as in automotive suspensions.

• An example of a check in bearing is a thrust bearing u

Servo valve nas value refers to the National Aerospace Standard (NAS) specification for servo valves.

• NAS value is a standard that defines the performance and quality requirements for servo valves used in aerospace applications.

• It ensures that servo valves meet specific criteria for reliability, accuracy, and durability.

• NAS value is often used as a reference when selecting or evaluating servo valves for aerospace system...read more

Bearings are of various types such as ball, roller, plain, etc. Furnace maintenance includes cleaning, inspection, and replacement of parts.

• Different types of bearings are used in mechanical systems depending on the load and speed requirements.

• Ball bearings are commonly used in high-speed applications while roller bearings are used in heavy load applications.

• Plain bearings are used in low-speed and high-load applicatio...read more

Ring granulator crusher is a machine used to crush coal, minerals, and other materials.

• Ring granulator crushers are used in coal handling plants to crush coal and other materials.

• They consist of a rotor with crushing elements inside a steel cage.

• The drive unit of these crushers includes a gearbox, motor, and coupling.

• The gearbox is used to reduce the speed of the motor and increase the torque.

• The motor provides the pow...read more