IndianOil Petronas Interview Questions and Answers

Wire selection is the process of choosing the appropriate type and size of wire for a specific application.

• Consider the current carrying capacity required for the application

• Select the appropriate wire gauge based on the current rating

• Choose the insulation material based on environmental conditions

• Consider factors such as flexibility, temperature rating, and voltage rating

• Common wire types include PVC, XLPE, and PTFE

Clips are devices used to secure wiring harnesses in place and prevent movement or damage.

• Clips are typically made of plastic or metal and come in various shapes and sizes.

• They are used to secure wiring harnesses to vehicle body panels, frames, or other components.

• Clips can be reusable or single-use, depending on the design and application.

• Examples of clips include push-in clips, screw-in clips, and adhesive-backed clips.

Terminals are the points where wires are connected to a device or component in an electrical wiring harness.

• Terminals can be crimped, soldered, or connected using screw terminals.

• Common types of terminals include ring terminals, spade terminals, and bullet terminals.

• Terminals can be insulated or uninsulated depending on the application.

• The choice of terminal type depends on factors such as current carrying capacity, vibration resistance, and ease of installation.

The type of connector used in electrical wiring harness design plays a crucial role in ensuring proper functionality and reliability.

• Connectors can be categorized based on their shape, size, pin configuration, and locking mechanism.

• Common types of connectors include circular connectors, rectangular connectors, blade connectors, and modular connectors.

• Connectors can also be classified as male or female, based on their design for insertion into or acceptance of another connecto...read more

Bracket manufacturing process typically involves processes like casting, machining, or stamping.

• Common manufacturing processes for brackets include casting, machining, and stamping

• Casting involves pouring molten metal into a mold to create the bracket shape

• Machining involves cutting away material from a solid block to create the bracket

• Stamping involves pressing a sheet of metal into the desired bracket shape

Degrees of freedom refer to the number of independent variables or parameters in a statistical model.

• Degrees of freedom are the number of values in the final calculation of a statistic that are free to vary.

• In a simple linear regression model with one independent variable, the degrees of freedom for the residuals would be n-2, where n is the number of data points.

• In a chi-squared test, the degrees of freedom are calculated as (number of rows - 1) * (number of columns - 1).

Reverse a linked list and reverse a string

• To reverse a linked list, iterate through the list and change the pointers to reverse the order

• To reverse a string, use a loop to iterate through the characters and build a new string in reverse order

• Example: Linked list 1->2->3->4 can be reversed to 4->3->2->1

• Example: String 'hello' can be reversed to 'olleh'