Set - 4 MEK motor

1. Clearance volume scavenging in a turbocharged,four-stroke/cycle diesel engine is accomplished
choose one during the valve overlap period with only the exhaust valve open at a pressure below atmospheric without cooling the cylinders or pistons

2. A normal manometer reading of turbocharger air suction filter and normal speed of the turbocharger but reduced scavenge air pressure may be due to:
choose one Fouling of the nozzle ring Fouling of diffuser or compressor wheel Fouling of the turbine Cold climate

3. Abnormal wear occurring in engines due to localized welding and fracture is known as ___________________
choose one Scoring Scuffing Peeling None of the above

4. The bearings used to support the crankshaft are generally called
choose one line shaft bearings connecting rod bearings main bearings support bearings

5. The flame safeguard control system of a large automatic auxiliary boiler will provide fuel shut off in the case of high
choose one water voltage fuel pressure steam pressure

Score =
Correct answers: