BetaZen InfoTech Interview Questions and Answers

There are various operations that can be performed on a lathe machine, including turning, facing, drilling, boring, knurling, and threading.

• Turning - used to create cylindrical parts

• Facing - used to create a flat surface at the end of a workpiece

• Drilling - used to create holes in the workpiece

• Boring - used to enlarge existing holes

• Knurling - used to create a textured pattern on the surface of the workpiece

• Threading - used to create threads on the workpiece

An induction motor is a type of AC motor where power is supplied to the rotor by electromagnetic induction.

• Induction motors are commonly used in various industrial applications due to their simplicity and reliability.

• They consist of a stator (stationary part) and a rotor (rotating part).

• When AC power is supplied to the stator windings, a rotating magnetic field is produced which induces currents in the rotor windings, causing it to rotate.

• The speed of an induction motor is sl...read more

To convert 230V AC to 24V DC, a rectifier circuit can be used.

• Use a step-down transformer to reduce the voltage from 230V AC to a lower voltage.

• Connect the output of the transformer to a rectifier circuit to convert AC to DC.

• Use a voltage regulator to stabilize the output at 24V DC.

• Examples of rectifier circuits include full-wave rectifiers and bridge rectifiers.

Hook's law states that the force needed to extend or compress a spring by a certain distance is directly proportional to that distance.

• Force is directly proportional to extension or compression

• Limitation: Only applicable to linear elastic materials

• Does not hold true for materials that exhibit plastic deformation

• Example: Stretching a rubber band follows Hook's law until it reaches its elastic limit

PLC stands for Programmable Logic Controller, it is a digital computer used for automation of electromechanical processes.

• PLC is used to control machinery in industries by programming it to perform specific tasks.

• It consists of input and output modules, a central processing unit, and a programming device.

• PLCs use ladder logic programming language to create programs for controlling processes.

• They are commonly used in manufacturing plants, power stations, and transportation sys...read more