Nido Machineries Service Engineer Interview Questions, Process, and Tips

Types of motors and their differences

• There are various types of motors such as DC motors, AC motors, stepper motors, and servo motors.

• DC motors operate on direct current and are commonly used in applications like electric vehicles and robotics.

• AC motors operate on alternating current and are widely used in household appliances and industrial machinery.

• Stepper motors move in discrete steps and are commonly used in print...read more

Possible problems when hydraulic doesn't sustain load

• Insufficient hydraulic fluid

• Leakage in the hydraulic system

• Faulty hydraulic pump

• Clogged or damaged hydraulic lines

• Malfunctioning control valves

• Worn-out or damaged hydraulic cylinder seals

When the limit switch brakes but you have to run, it can lead to potential damage or malfunction.

• Running the system without the limit switch can result in overloading or exceeding safe operating limits.

• It may cause damage to the equipment or components due to excessive force or movement.

• Without the limit switch, there is a risk of the system operating outside its intended range, leading to safety hazards.

• Continuing to ...read more

A motor is a device that converts electrical energy into mechanical energy to produce motion.

• Motors work on the principle of electromagnetic induction

• They consist of a rotor and a stator

• Common types include DC motors, AC motors, and stepper motors

• Motors are used in various applications such as industrial machinery, household appliances, and vehicles

The pick current of a motor refers to the maximum current that the motor can draw under normal operating conditions.

• Pick current is important for determining the appropriate size of protective devices such as fuses and circuit breakers.

• It is also crucial for selecting the right motor starter and ensuring the motor operates safely.

• For example, a motor with a pick current of 10A would require a fuse or circuit breaker ra...read more

A hydraulic system is a technology that uses pressurized fluid to transmit power and control movement. Gears are mechanical components that transmit torque and rotation between shafts.

• Hydraulic systems use a pump to pressurize fluid, which is then used to power cylinders, motors, and other components.

• Gears come in many shapes and sizes, including spur, helical, bevel, and worm gears.

• Gears are used in many machines, inc...read more