Afcons Infrastructure Diploma Trainee Engineer Interview Questions and Answers

The thickness of the slab is determined by the structural requirements and load-bearing capacity. Mix grade, field test of brick, lab test of brick, and test of cement are essential for quality control in construction.

• Thickness of slab is determined based on structural requirements and load-bearing capacity

• Mix grade of concrete is important for determining its strength and durability

• Field test of brick involves checkin...read more

Field test of bricks involves checking the physical properties and quality of bricks on-site.

• Visual inspection for cracks, chips, and uniformity

• Sound test by tapping the brick to check for a clear ringing sound

• Water absorption test by immersing the brick in water to see if it absorbs water

• Dimensional measurements to ensure uniform size and shape

• Strength test by applying pressure to check for breakage

Lab test of bricks involves checking for dimensions, compressive strength, water absorption, efflorescence, and soundness.

• Dimensions: Measure length, width, and height to ensure they meet standards.

• Compressive strength: Test the ability of the brick to withstand pressure.

• Water absorption: Determine the amount of water the brick can absorb.

• Efflorescence: Check for white deposits on the surface due to soluble salts.

• Sound...read more

Lab test of cement involves checking its physical and chemical properties to ensure quality and strength.

• Lab tests include checking fineness, setting time, compressive strength, and chemical composition.

• Fineness test determines the particle size of cement particles.

• Setting time test measures the time taken for cement to set.

• Compressive strength test evaluates the strength of cement mortar.

• Chemical composition test chec...read more

Field test of cement involves checking its physical properties and quality to ensure it meets standards.

• Field test involves checking the setting time of cement to ensure it is within specified limits.

• Checking the compressive strength of cement cubes after a certain period of curing.

• Inspecting the color and texture of the cement to ensure it is uniform and free from impurities.

• Measuring the fineness of cement particles ...read more

The length of a full length TMT bar varies depending on the manufacturer and the country.

• The standard length of a TMT bar in India is 12 meters.

• In the United States, the standard length is 40 feet or 12.2 meters.

• The length of a TMT bar can also be customized according to the requirements of a project.

• The weight of a TMT bar is directly proportional to its length.

• The longer the TMT bar, the higher the transportation cos

Dry mortar is a mixture of cement, sand, and additives in dry form, while wet mortar is a mixture of the same ingredients in wet form.

• Dry mortar is pre-mixed and requires only the addition of water before use.

• Wet mortar is mixed on-site and can be adjusted for consistency as needed.

• Dry mortar is easier to store and transport than wet mortar.

• Wet mortar has a shorter shelf life than dry mortar.

• Dry mortar is commonly used...read more