10+ Senior Technician Interview Questions and Answers for Freshers

Electrical faults in motors can include short circuits, open circuits, insulation breakdown, and overloading.

• Short circuits occur when there is a direct connection between the motor windings, causing excessive current flow.

• Open circuits happen when there is a break in the electrical path, preventing current from flowing.

• Insulation breakdown occurs when the insulation material surrounding the motor windings deteriorates, leading to electrical leakage or shorting.

• Overloading ha...read more

The bore refers to the diameter of the cylinders in an engine. The transmission is the component that transfers power from the engine to the wheels. High efficiency accessories can include items like turbochargers or lightweight components.

• Bore is the diameter of the cylinders in an engine

• Transmission transfers power from engine to wheels

• High efficiency accessories can include turbochargers or lightweight components

Motor overcurrent faults can be caused by various factors.

• Overloading

• Short circuits

• Ground faults

• Mechanical binding

• Voltage imbalance

• Inadequate cooling

• Excessive starting

• Inadequate wire size

• Inadequate protection

• Motor design flaws

Diamond is the hardest material known to man.

• Diamond is the hardest natural material on Earth.

• Hardness is measured on the Mohs scale, with diamond being a 10.

• Other hard materials include silicon carbide and boron nitride.

Suction shell and pressure shell are components of a centrifugal pump.

• Suction shell is the part of the pump that houses the impeller and creates a low-pressure area to draw in fluid.

• Pressure shell is the part of the pump that contains the discharge nozzle and creates a high-pressure area to push out fluid.

• The two shells are separated by the impeller, which rotates to move fluid from the suction shell to the pressure shell.

• Suction shell is also known as the volute, while press...read more

S1 duty refers to a continuous duty cycle of a motor or machine.

• S1 duty means that the motor or machine can run continuously without any rest or cooling breaks.

• It is typically used for applications where the load is constant and the motor or machine does not need to be turned off.

• Examples of S1 duty applications include conveyor belts, pumps, and fans.

• S1 duty is also known as continuous duty.

• It is important to ensure that the motor or machine is rated for S1 duty if it will b...read more

A thermostat valve is a device that controls the flow of a fluid in a heating or cooling system based on the temperature.

• Thermostat valves are commonly used in HVAC systems to regulate the temperature of a room or building.

• They can be manual or automatic, with automatic valves using sensors to adjust the flow based on the temperature.

• Thermostat valves are essential for maintaining a comfortable and consistent temperature in a space.

• Examples of thermostat valves include radiat...read more

There are various types of files used in computing.

• Text files: contain plain text and can be opened in any text editor.

• Binary files: contain non-textual data and can only be opened in specific programs.

• Image files: contain images and can be opened in image viewers or editors.

• Audio files: contain audio data and can be played in media players.

• Video files: contain video data and can be played in media players or video editors.

• Executable files: contain instructions for the comput...read more

Ohm's law states that the current flowing through a conductor is directly proportional to the voltage across it, and inversely proportional to the resistance of the conductor.

• Ohm's law is represented by the formula V = IR, where V is voltage, I is current, and R is resistance.

• It helps in calculating the current, voltage, or resistance in a circuit when the other two values are known.

• For example, if a circuit has a voltage of 12V and a resistance of 4 ohms, the current flowing...read more