Vaaman Engineers Engineer Interview Questions and Answers for Experienced

Daily maintenance schedules of machineries

• Check oil levels and top up if necessary

• Inspect and clean filters

• Check for any signs of wear and tear

• Lubricate moving parts

• Check for any leaks or unusual noises

• Perform any necessary repairs or replacements

• Keep a record of maintenance performed

Construction machinery uses various types of oils depending on their functions.

• There are different types of oils used in construction machinery such as engine oil, hydraulic oil, gear oil, transmission oil, and brake oil.

• Engine oil is used to lubricate the engine and prevent wear and tear.

• Hydraulic oil is used to transfer power in hydraulic systems.

• Gear oil is used to lubricate gears and bearings in gearboxes.

• Transmiss...read more

To repair a hydraulic pump, first identify the problem and then disassemble the pump to replace or repair the faulty parts.

• Identify the problem by checking for leaks, unusual noises, or loss of pressure.

• Disassemble the pump carefully, taking note of the order of parts and any seals or gaskets.

• Inspect the parts for damage or wear, and replace any faulty components.

• Reassemble the pump, making sure all parts are properly ...read more

Engine failure can be caused by various factors such as overheating, lack of maintenance, wear and tear, and manufacturing defects.

• Overheating due to lack of coolant or oil

• Lack of maintenance such as not changing oil or air filters

• Wear and tear of engine components such as pistons, bearings, and valves

• Manufacturing defects such as faulty parts or poor assembly

• Fuel contamination or incorrect fuel usage

• Improper installat...read more

Lapping of beam is done by grinding the surface of the beam to achieve a smooth and flat finish.

• The beam is placed on a lapping machine with an abrasive surface.

• The machine moves the beam back and forth while the abrasive surface grinds away any imperfections.

• The process is repeated with finer and finer abrasives until the desired finish is achieved.

• Lapping can improve the strength and durability of the beam.

• It is comm...read more

The number of cube samples taken for 60 cum of concrete depends on the specifications and requirements of the project.

• The number of cube samples may vary depending on the project specifications and requirements.

• Typically, 3 to 5 cube samples are taken for every 100 cubic meters of concrete.

• The cube samples are taken to test the compressive strength of the concrete.

• The number of cube samples may also depend on the locat...read more

The unit weight of steel refers to the weight of a specific volume of steel.

• The unit weight of steel is typically measured in pounds per cubic foot or kilograms per cubic meter.

• The specific unit weight of steel can vary depending on the type and grade of steel.

• For example, the unit weight of mild steel is approximately 490 pounds per cubic foot or 7850 kilograms per cubic meter.

• On the other hand, the unit weight of sta...read more