Technical Sales Engineer Interview Questions and Answers for Freshers

Waterproofing a retaining wall involves various methods to prevent water infiltration and protect structural integrity.

• 1. Use of waterproof membranes: These are applied to the wall surface to create a barrier against water.

• 2. Drainage systems: Installing weep holes or drainage pipes to redirect water away from the wall.

• 3. Backfill with gravel: Using gravel as backfill material allows for better drainage and reduces hydrostatic pressure.

• 4. Coatings and sealants: Applying speci...read more

Waterproofing a podium involves several steps to ensure durability and protection against water damage.

• 1. Surface Preparation: Clean the podium surface to remove dirt, debris, and any existing coatings.

• 2. Repair Cracks: Fill any cracks or gaps with appropriate sealants to prevent water ingress.

• 3. Apply Waterproof Membrane: Use a liquid or sheet membrane to create a barrier against water.

• 4. Install Drainage Systems: Ensure proper drainage to direct water away from the podium.

• 5...read more

Expansion joints are treated using various methods to ensure flexibility and prevent damage in structures.

• Regular inspection and maintenance to identify wear and tear.

• Use of sealants to prevent water ingress and corrosion.

• Replacement of damaged joints with new materials, such as elastomeric or metallic joints.

• Installation of protective covers to shield joints from environmental factors.

• Application of lubricants to reduce friction and wear.

Waterproofing involves various methods to prevent water infiltration in structures, ensuring durability and safety.

• 1. Membrane Waterproofing: Uses sheets or liquid membranes to create a barrier. Example: Bituminous membranes.

• 2. Integral Waterproofing: Adds waterproofing agents to concrete mix. Example: Crystalline waterproofing.

• 3. Coating Waterproofing: Applies a protective layer on surfaces. Example: Elastomeric coatings.

• 4. Drainage Waterproofing: Involves systems to redirec...read more

The piston cylinder speed after the power phase can be calculated using the formula: speed = distance / time.

• Calculate the distance traveled by the piston during the power phase.

• Determine the time taken for the power phase.

• Divide the distance by the time to calculate the piston cylinder speed.

HDPE waterproofing uses high-density polyethylene sheets to create a durable, impermeable barrier against water infiltration.

• HDPE stands for High-Density Polyethylene, a strong plastic material.

• Commonly used in construction for foundations, roofs, and basements.

• Provides excellent resistance to chemicals and UV radiation.

• Installation involves laying sheets and sealing seams to ensure waterproofing.

• Examples include pond liners, landfill liners, and waterproofing for tunnels.

Types of welding include arc welding, gas welding, and resistance welding.

• Arc welding uses an electric arc to create heat and join metals together.

• Gas welding involves the use of a fuel gas and oxygen to generate heat for welding.

• Resistance welding utilizes the heat generated by passing current through the workpieces.

• Other types of welding include laser welding, spot welding, and TIG welding.