Senior CAD Technician Interview Questions and Answers

Couplers are provided in reinforcement to join two reinforcement bars together.

• Couplers are used to join reinforcement bars when the length of the reinforcement is not sufficient.

• Couplers are used to avoid the lap length of reinforcement bars.

• Couplers are used to reduce the congestion of reinforcement bars in the structure.

• Couplers are used to provide better structural integrity and strength.

• Couplers are commonly used in construction of bridges, tunnels, and high-rise buildin...read more

A bridge cross section with required reinforcement.

• Draw a cross section of a bridge with dimensions and materials used.

• Identify the areas that require reinforcement based on the load and stress analysis.

• Show the reinforcement required using appropriate symbols and annotations.

• Include details such as bar diameter, spacing, and cover.

• Consider the type of reinforcement needed, such as steel or fiber-reinforced polymer.

• Ensure compliance with relevant codes and standards.

The lap provided in RCC column depends on the diameter of the column and the load it is expected to bear.

• The lap length is usually 50 times the diameter of the column.

• For example, if the diameter of the column is 300mm, the lap length would be 15000mm or 15m.

• The lap length also depends on the load the column is expected to bear.

• For heavy loads, the lap length should be increased.

• The lap length should be calculated by a structural engineer or as per the design specifications.

To draw a rough sketch of RCC deck slab and level it, start by identifying the dimensions and then sketching the slab with proper levels.

• Identify the dimensions of the RCC deck slab

• Sketch the slab with proper levels

• Ensure that the sketch is rough and not to scale

• Label the important features of the slab such as beams and columns