Mtandt Interview Questions and Answers

NC (Normally Closed) and NO (Normally Open) contacts are types of electrical switches used in circuits.

• NC contacts are closed when the switch is not activated, allowing current to flow.

• NO contacts are open when the switch is not activated, preventing current flow.

• Example: A doorbell typically uses NO contacts; pressing the button closes the circuit.

• Example: A safety switch on a machine may use NC contacts to stop ...read more

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

• Transformers are used to increase or decrease the voltage of an alternating current (AC) signal.

• They consist of two or more coils of wire, known as windings, that are wound around a core made of magnetic material.

• The primary winding receives electrical energy from the input circuit ...read more

AC motors use alternating current, while DC motors use direct current, leading to different applications and performance characteristics.

• AC motors are commonly used in industrial applications, such as conveyor systems.

• DC motors provide better speed control, making them ideal for electric vehicles.

• AC motors are generally simpler and more durable, requiring less maintenance.

• DC motors can produce higher torque at low...read more

COVID 19 has had significant impacts on the project engineering industry.

• Supply chain disruptions have caused delays in project timelines.

• Remote work has become more prevalent, requiring adjustments to project management strategies.

• Budgets have been impacted due to economic uncertainty.

• Increased focus on health and safety measures on job sites.

• Travel restrictions have made it difficult to conduct site visits and i...read more

COVID-19 has severely impacted the Indian industry, causing disruptions in supply chains and affecting economic growth.

• The pandemic has led to a decrease in demand for goods and services, resulting in reduced production and job losses.

• Industries such as tourism, hospitality, and aviation have been hit the hardest due to travel restrictions and lockdowns.

• Supply chains have been disrupted due to restrictions on move...read more

Transformers are electrical devices that transfer energy from one circuit to another through electromagnetic induction.

• Step-up transformer

• Step-down transformer

• Isolation transformer

• Autotransformer

• Instrument transformer