Machine Operator and Maintenance
Machine Operator and Maintenance Interview Questions and Answers
Q1. What machine u handling
I handle a variety of machines including CNC machines, lathes, and grinders in a manufacturing setting.
CNC machines
Lathes
Grinders
Q2. Purpose of condenser, economizer
Condenser and economizer are used in HVAC systems to increase efficiency and reduce energy consumption.
Condenser is used to remove heat from the refrigerant and convert it from a gas to a liquid state.
Economizer is used to pre-cool the air entering the HVAC system, reducing the load on the cooling system.
Both components help to increase the efficiency of the HVAC system and reduce energy consumption.
Examples of HVAC systems that use condensers and economizers include rooftop ...read more
Machine Operator and Maintenance Interview Questions and Answers for Freshers
Q3. Machine mechanical operating system
Machine mechanical operating system refers to the components and mechanisms that allow a machine to function properly.
The operating system includes components like gears, belts, pulleys, and motors.
Regular maintenance and lubrication of these components is essential for smooth operation.
Understanding the mechanical system helps in troubleshooting and repairing any issues that may arise.
Examples of machine mechanical operating systems include conveyor belts, engines, and robot...read more
Q4. Explain refrigeration cycle
Refrigeration cycle is a process of removing heat from a low-temperature reservoir and transferring it to a high-temperature reservoir.
The cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.
The refrigerant is compressed by the compressor and then condensed in the condenser, releasing heat.
The high-pressure refrigerant then passes through the expansion valve, where it expands and cools down.
The cooled refrigerant then enters the evap...read more
Q5. Working principle of relay
A relay is an electrically operated switch that uses an electromagnet to mechanically open or close a circuit.
Relays are used to control high voltage or high current circuits with low voltage signals.
They are commonly used in industrial automation, automotive applications, and household appliances.
Relays can be classified into different types based on their construction and operating principles.
Some common types of relays include electromagnetic relays, solid-state relays, th...read more
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