Compass Group Support Services Electrical Maintenance Supervisor Interview Questions and Answers

PLC is a digital computer used for automation of electromechanical processes. RLC circuit is a passive circuit consisting of resistor, inductor and capacitor.

• PLC is programmable and can be used to control various processes in industries.

• RLC circuit is used in electronic filters, oscillators, and tuning circuits.

• PLC is a digital device while RLC circuit is an analog circuit.

• PLC is used for automation while RLC circuit i...read more

CNC machine stands for Computer Numerical Control machine. It is a computer-controlled machine used for precision manufacturing.

• CNC machines are used in various industries such as aerospace, automotive, and electronics.

• They are capable of producing complex shapes and designs with high accuracy and consistency.

• CNC machines use CAD/CAM software to create a design and convert it into a set of instructions for the machine ...read more

MTTR stands for Mean Time To Repair. It is a measure of the average time taken to repair a failed equipment or system.

• MTTR is a key performance indicator used in maintenance management.

• It helps in identifying the efficiency of maintenance processes.

• MTTR is calculated by dividing the total downtime by the number of repairs.

• A low MTTR indicates that the maintenance team is efficient in repairing equipment.

• MTTR can be use...read more

MTBF stands for Mean Time Between Failures, which is a measure of reliability for a system or component.

• MTBF is calculated by dividing the total operating time by the number of failures.

• It is commonly used in industries such as manufacturing, electronics, and transportation.

• MTBF can be used to predict the expected lifespan of a system or component.

• It is important to note that MTBF does not take into account the severit...read more

A hydraulic system is a technology that uses pressurized fluid to transmit power and energy.

• Hydraulic systems use a fluid, usually oil, to transmit power.

• The fluid is pressurized by a pump and then sent through hoses and pipes to actuators.

• Actuators can be cylinders or motors that convert the fluid pressure into mechanical force.

• Hydraulic systems are used in heavy machinery, such as excavators and cranes, as well as in...read more

A pneumatic system is a system that uses compressed air to transmit and control energy.

• Pneumatic systems are commonly used in industrial and manufacturing settings.

• They are often used to power tools and machinery.

• Examples of pneumatic systems include air brakes on trains and buses, pneumatic drills, and air compressors.

• Pneumatic systems are generally reliable and require less maintenance than hydraulic systems.

• They are...read more

Programming is the process of designing, writing, testing, and maintaining computer programs.

• Programming involves creating instructions for computers to execute

• It requires knowledge of programming languages and software development tools

• Programming can be used to create applications, websites, and software systems

• Debugging and testing are important parts of programming

• Examples of programming languages include Java, Pyt

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 or low current signals.

• They are commonly used in industrial control systems, automotive applications, and household appliances.

• Relays can be classified into different types based on their construction and operation, such as electr...read more

A timer is a device that measures and controls the passage of time.

• Timers can be mechanical or electronic.

• They can be used for a variety of purposes, such as turning lights on and off at specific times.

• Timers can also be used in industrial settings to control machinery and equipment.

• Some common types of timers include countdown timers, interval timers, and programmable timers.