ITI Interview – Automotive/Heavy Vehicle Trades — 15 trades, 300 interview questions. Click a trade to see its 20 Q&A. Mechanic Motor Vehicle (MMV) 20 Q&A Q1. What does a Mechanic Motor Vehicle (MMV) do? An MMV mechanic services, diagnoses, and repairs cars and light motor vehicles, covering engines, transmissions, brakes, and electrical systems. Q2. What is the difference between a petrol and diesel engine? A petrol engine uses a spark plug to ignite the fuel-air mixture, while a diesel engine relies on high compression to ignite fuel injected into hot compressed air. Q3. What is the function of a clutch? A clutch temporarily disconnects the engine from the transmission, allowing smooth gear changes and stopping without stalling the engine. Q4. What is the purpose of a radiator? A radiator dissipates heat from the engine coolant, keeping the engine at a safe operating temperature. Q5. What is the difference between disc brakes and drum brakes? Disc brakes use pad...