ACC Mechanical Technician Interview Questions and Answers

The steps to dismantle a turbine involve shutting down the system, disconnecting power sources, removing external components, disassembling internal parts, and safely disposing of any hazardous materials.

• Shut down the turbine system and ensure it is completely powered off.

• Disconnect all power sources to prevent any accidents during dismantling.

• Remove any external components such as casing, covers, and piping.

• Disassembl...read more

Thermodynamics is the branch of physics that deals with the relationships between heat and other forms of energy.

• Thermodynamics studies the transfer of energy in the form of heat and work.

• It involves concepts like entropy, temperature, and energy conversion.

• Examples include the efficiency of engines, refrigeration systems, and phase transitions in materials.

The third law of motion states that for every action, there is an equal and opposite reaction.

• States that when one object exerts a force on a second object, the second object exerts an equal and opposite force on the first object

• The forces always occur in pairs

• Examples include a rocket pushing against the ground to lift off, or a person pushing against a wall

Types of bearings include ball bearings, roller bearings, plain bearings, and fluid bearings.

• Ball bearings: use balls to reduce friction between two surfaces

• Roller bearings: use cylindrical rollers to reduce friction

• Plain bearings: have a simple surface with no moving parts

• Fluid bearings: use a thin layer of liquid or gas to reduce friction

SPC maintenance involves regular monitoring, analysis, and adjustment of processes to ensure quality control.

• Regularly collect data on key process parameters

• Analyze data using statistical tools like control charts

• Identify trends or patterns that indicate process variation

• Take corrective actions to address out-of-control situations

• Train employees on SPC principles and techniques

Chain transmission uses metal chains to transmit power, while belt transmission uses belts made of rubber or other materials.

• Chain transmission is more durable and can handle higher loads compared to belt transmission.

• Belt transmission is quieter and smoother compared to chain transmission.

• Chain transmission requires more maintenance due to lubrication needs, while belt transmission is relatively maintenance-free.

• Examp...read more