Unlock Technologies Interview Questions and Answers

A circuit breaker is an electrical switch that automatically interrupts the flow of current when it exceeds a certain limit.

• It is used to protect electrical circuits from damage caused by overloading or short circuits.

• It works by detecting the excess current and tripping the switch to break the circuit.

• Once tripped, it can be reset manually or automatically depending on the type of circuit breaker.

• Common types include thermal, magnetic, and hybrid circuit breakers.

• Examples of...read more

DC motors and generators work on the principle of electromagnetic induction.

• DC motors convert electrical energy into mechanical energy

• DC generators convert mechanical energy into electrical energy

• Both use a commutator and brushes to switch the direction of current flow

• DC motors have a rotor and a stator, while DC generators have a stator and a rotor

• DC motors and generators have various applications in industries such as automotive, aerospace, and power generation

A 33/11kv transformer can be represented by a schematic diagram with two sets of windings and a core.

• The transformer has two sets of windings, one for the primary voltage of 33kv and the other for the secondary voltage of 11kv.

• The windings are wrapped around a core made of laminated steel to reduce energy loss due to eddy currents.

• The transformer may also have cooling fins or a cooling system to dissipate heat generated during operation.

• The transformer may have bushings for c...read more

The density of steel is around 7.85 g/cm³.

• Density is the measure of mass per unit volume.

• Steel is a metal alloy composed of iron and carbon.

• The density of steel varies depending on its composition and temperature.

• The density of steel is higher than that of most other materials.

• The density of steel is commonly used in engineering and construction applications.

Layers can be selected by using the selection tool in graphic design software.

• Use the selection tool to click on the desired layer

• Hold down the shift key to select multiple layers

• Use the layers panel to easily identify and select specific layers