June 29, 2023June 7, 2023

MECHANIC DIESEL- Cooling and Lubricating System MCQ

Prepare for your examinations with a set of multiple choice questions (MCQs) related to Cooling and Lubricating System for MECHANIC DIESEL Trade. The questions are likely designed to test a user’s knowledge or understanding of Mechanic Diesel concepts and may be useful for exam preparation or self-assessment. The website may be a helpful resource for individuals studying to become Mechanic Diesel or seeking to improve their understanding of Mechanic Diesel principles.

COOLING and LUBRICATING SYSTEM

In which type of cooling system, fins are used on the cylinder head? Oil cooling Water cooling Liquid cooling Air cooling

Which part helps to dissipate the heat in the air cooling engine? Engine piston Engine crank shaft Density of water Cylinder and head fins

In which types of cooling systems rate of cooling is very low? Thermo siphon system Air cooling system Forced feed system Pump circulation system

Which part is forced to circulate the water in forced feed engine cooling system? Pump Thermostat Density of water Water jacket

Which part prevent leakage of water in the water pump? Impeller Bearing Seal Pulley

In cooling system water is stored in Radiator upper tank Radiator lower tank Engine water jacket Expansion tank

The thermostat valve is fitted in pressurized cooling system at Water outlet of water pump Water outlet of radiator Water outlet of water jacket Water outlet of cylinder head

What is the name of the part marked as x? Radiator upper tank Radiator lower tank Radiator drain plug Radiator cap

What is the name of the part marked as x? Water pump pulley Water pump impeller Water pump housing Water pump shaft

What is the name of the assembly marked as x? Water pump Hydraulic pump Fuel pump Oil pump

What is the name of the part marked as x? Oil pump Water pump Oil pump strainer Hydraulic pump

What is the name of the part marked as x? Air filter Oil filter Water filter Fuel filter

Which is the property of a lubricant? Boiling temperature should be low Should develop foam Oil viscosity should not be same in hot and cold condition Oil viscosity should be suit the operating conditions

Which lubrication system uses separate oil tank? Wet sump lubrication Splash lubrication Petrol-oil lubrication Dry sump lubrication

Which type of lubrication system is used in two stroke engine? Dry sump lubrication Wet sump lubrication Petrol-oil lubrication Splash lubrication

Which part of the engine marked as x? Suction pump Oil filter Oil pump Oil strainer

Which part drives oil pump? Crank Shaft Cam Shaft Crank pulley Timing gears

Which part of the crankshaft flows oil to the crank pin? Crank web Crankshaft thrust bearing Crankshaft main journal Crank pulley

Which device sucks oil from oil sump? Strainer Suction pipe Pump Filter

Where the metal fins are provided in the air cooled engine? Cylinder and head Exhaust pipe Valve door Intake manifold

How the water circulation is obtained in thermosyphon system? By forced feed of water By density difference of hot water and cold water By gravity of water By water jackets

What is the effect of the water level falling down in the thermosyphon system? Circulation continue Circulation low Circulation discontinue Circulation high

How the water pump gets drive in pump circulation cooling system? By belt By gear By chain By coupling

In which condition thermostat valve opens? Low temperature of engine High temperature of engine Operating temperature of engine Freezing temperature of engine

Which is related to radiator removing procedure? Top up water in radiator Disconnect the all connections with radiator Connect the top water hose Connect the bottom water hose

What is the name of this cleaning method? Pressure flushing system Reverse flushing system Engine cooling system Water draining system

Which method is used in radiator reverse flushing cleaning? Flushing water with air (gun) pressure Flushing water with engine oil Flushing water with coolant oil Flushing water with soap oil

Where is the oil cooler fitted in the engine? Engine block Cylinder head Exhaust manifold Oil sump

What is the main purpose of the lubricant? Minimise the friction Increase the friction Increase the wearness Increase the noise

Which of the following statement is related to lubrication system? Provide a cushioning effect to oil filter Increase the wear and tear of the moving parts Increase the blow by gases by providing an oil Minimise the wear and tear of the moving parts

Which method is used to descale the water passages in the engine block? By injecting water solvent By injecting oil solvent By injecting fresh air By cleaning tools

How to check the damaged radiator core tubes? Check visually Check with special tools Check with computer Check with bore dial gauge

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