Voltech Electrical Site Engineer Interview Questions and Answers

The maximum range of voltage rating for belted cables varies depending on the specific application and industry standards.

• The voltage rating of belted cables can range from low voltage (LV) to high voltage (HV).

• LV belted cables typically have a voltage rating of up to 1 kV.

• HV belted cables can have voltage ratings ranging from 1 kV to several hundred kilovolts (kV).

• The exact voltage rating of belted cables is determine...read more

Conventional flow assumes charges flow from positive to negative terminals.

• Conventional flow is based on the assumption that current flows from positive to negative terminals.

• This convention is used in electrical engineering and circuit analysis.

• For example, in a battery-powered circuit, conventional flow assumes that electrons flow from the positive terminal of the battery to the negative terminal.

The torque a synchronous motor can develop depends on its size and design.

• The torque is directly proportional to the current supplied to the motor.

• The torque also depends on the strength of the magnetic field produced by the rotor.

• Larger synchronous motors can develop higher torque than smaller ones.

• For example, a 500 kW synchronous motor can develop a torque of around 1500 Nm.

• The torque can also be affected by factors

Cable protectors can safeguard cables against mechanical injury.

• Cable protectors can be used to cover and shield cables from physical damage.

• Flexible conduits or cable trays can be installed to provide a protective pathway for cables.

• Using cable ties or clamps to secure cables in place can prevent them from being accidentally pulled or strained.

• Applying cable armor or armored cables can provide additional protection ag...read more

The earth wire or ground wire is typically made of copper or aluminum.

• The earth wire is an essential safety component in electrical systems.

• It is used to provide a path for electrical current to safely discharge into the ground.

• Copper is commonly used for earth wires due to its excellent conductivity and corrosion resistance.

• Aluminum is also used in some cases, especially for overhead power lines.

• The earth wire is usua...read more

The average resistance of a human body is approximately 1,000 ohms.

• The resistance of a human body can vary depending on factors such as skin moisture, contact area, and voltage applied.

• Dry skin has higher resistance compared to moist skin.

• The resistance can be affected by the presence of sweat, water, or other conductive substances on the skin.

• The resistance decreases when the contact area between the body and a conduc...read more