Sanghi Industries Interview Questions and Answers

ACB testing includes various methods to ensure the reliability and safety of air circuit breakers in electrical systems.

• 1. Insulation Resistance Testing: Measures the insulation resistance of the ACB to ensure it meets safety standards.

• 2. Functional Testing: Verifies the operational functionality of the ACB under normal and fault conditions.

• 3. Trip Testing: Checks the trip mechanism of the ACB to ensure it operate...read more

Transformer losses include copper losses and iron losses.

• Copper losses are caused by the resistance of the copper windings and increase with the square of the current flowing through the transformer.

• Iron losses, also known as core losses, are caused by hysteresis and eddy currents in the transformer core material.

• Other losses may include stray losses, dielectric losses, and mechanical losses.

• Total losses in a tran...read more

The type of VCB coil is generally a copper coil.

• VCB coils are typically made of copper due to its high conductivity and durability

• Copper coils are preferred for VCBs as they provide efficient current flow and are resistant to heat

• Some VCB coils may also be made of aluminum, but copper is more common

Fan's law states that the volume of air flow is directly proportional to the fan speed and the pressure difference.

• Fan's law is used to calculate the air flow rate in a ventilation system.

• It states that if the fan speed is doubled, the air flow rate will also double.

• Similarly, if the pressure difference is doubled, the air flow rate will also double.

• Fan's law is important in HVAC systems, where air flow rate is cr...read more

The data transfer speed of Profibus DP is up to 12 Mbps.

• Profibus DP uses a high-speed RS-485 physical layer

• The maximum cable length is 1200 meters

• It supports up to 126 devices on a single network

• It is commonly used in industrial automation applications

One meter is equivalent to approximately 39.37 inches, a standard conversion in measurement.

• 1 meter = 39.37 inches

• To convert meters to inches, multiply the number of meters by 39.37.

• Example: 2 meters = 2 * 39.37 = 78.74 inches.

• In practical terms, a standard door height is about 2 meters or 78.74 inches.

The Vernier caliper is used to measure the length or diameter of an object in millimeters.

• The Vernier caliper has a main scale and a sliding Vernier scale.

• To measure an object, align it between the jaws of the caliper and read the measurement on the Vernier scale.

• The Vernier scale allows for more precise measurements than a regular ruler.

• Example: If the main scale reads 10 mm and the Vernier scale aligns with the ...read more

To edit a rung in AB PLC software RS Logix, follow these steps:

• Open the RS Logix software and select the project

• Navigate to the ladder logic editor and locate the rung to be edited

• Double-click on the rung to open the rung editor

• Make the necessary changes to the rung

• Save the changes and download the updated program to the PLC