Sunderji And Sons Interview Questions and Answers

Possible check points for high engine oil consumption

• Check for oil leaks in the engine

• Inspect the PCV valve and system for proper functioning

• Examine the piston rings for wear or damage

• Inspect the valve seals for leaks

• Check for excessive engine blow-by

• Inspect the turbocharger for oil leaks

• Check the engine breather system for clogs or restrictions

Possible causes of poor pick up in field service engineering

• Insufficient power supply to the equipment

• Mechanical issues with the pick-up mechanism

• Dust or debris obstructing the pick-up sensor

• Faulty or outdated software/drivers

• Improper calibration of the pick-up sensor

• Interference from external sources

• Worn-out or damaged pick-up components

The check point for a vehicle that won't start is to first check the battery.

• Check the battery connections for any loose or corroded terminals.

• Test the battery voltage using a multimeter to ensure it has sufficient charge.

• Inspect the battery for any signs of damage or leakage.

• If the battery is fine, check the starter motor and ignition system for any faults.

• Verify that there is fuel in the tank and check the fuel pump and filters for any issues.

Engine compression check is a procedure to measure the compression pressure in each cylinder of an engine.

• Start by warming up the engine to operating temperature.

• Disable the ignition system to prevent the engine from starting.

• Remove all spark plugs from the engine.

• Connect a compression gauge to the first cylinder's spark plug hole.

• Crank the engine several times using the starter motor.

• Record the compression pressure reading from the gauge.

• Repeat the process for each cylinder....read more

The engine can seize due to lack of lubrication, overheating, or mechanical failure.

• Lack of lubrication can cause friction and heat, leading to seizure.

• Overheating can cause expansion and seizing of engine components.

• Mechanical failure, such as a broken piston or connecting rod, can also cause seizure.

Wet compression test measures the compression pressure of an engine cylinder with the addition of a small amount of oil.

• Wet compression test is performed to determine if low compression in a cylinder is due to worn piston rings or cylinder walls.

• In this test, a small amount of oil is added to the cylinder through the spark plug hole before performing the compression test.

• If the compression pressure increases significantly after adding oil, it indicates that the low compressio...read more

The mean of a dry compression test is the average value of the compression test results obtained without the use of any lubricants or fluids.

• Dry compression test measures the compression pressure of an engine cylinder without the presence of any lubricants or fluids.

• The mean of the dry compression test is calculated by summing up all the individual compression test results and dividing it by the number of tests conducted.

• It provides an indication of the overall compression pe...read more