Turbo IQ Test

Test your Turbo IQ by selecting one answer per question.

 A. The temperature of the exhaust gas
 B. The pressure of the exhaust gas
 C. Both the temperature and pressure of the exhaust gas
 D. The engine power
 A. They demoisturize the intake air to prevent corrosion of the cylinder liners
 B. Cooling leads to increased air density, thereby more oxygen for combustion
 C. They increase engine and turbo life due to reduced exhaust gas temperature
 D. All of the above
 A. Complete failure of the turbocharger
 B. Increased clearance between the shaft and bearing
 C. Polishing of the bearing running surfaces
 D. All of the above
 A. 10W40 mineral-based oil
 B. 0W30 fully synthetic oil
 C. Any grade of good quality motor oil
 D. The oil recommended by the engine manufacturer
 A. 25,000rpm
 B. 150,000rpm
 C. 185,000rpm
 D. 240,000rpm
 A. The turbo is noisy and then becomes quieter once the oil starts to circulate
 B. The turbo bearing system is destroyed within seconds
 C. The turbo will be just fine
 D. The engine runs more smoothly
 A. It is not strong enough to withstand foreign object damage
 B. It cannot be cast to the required precision
 C. It would melt at the temperature of engine exhaust gas
 D. It could, but no one has tried it yet
 A. A turbocharger that floats in the engine
 B. A variable geometry turbocharger such as VNT™
 C. A turbocharger with a wastegate
 D. A turbocharger whose maximum speed is set by wheel size
 A. Control the "boost" from a turbocharger
 B. Bypass exhaust gas around the turbine
 C. Allow a smaller sized turbine to be used for improved low speed engine performance
 D. All of the above
 A. Providing rapid movement of the vanes
 B. Making the turbocharger more complex
 C. Using moveable vanes to control the amount of air supplied to the engine
 D. Providing increased boost at low engine speed only
 A. 680°C
 B. 920°C
 C. 950°C
 D. 1050°C
 A. It controls the vane position
 B. It provides better control of the boost pressure and turbo speed
 C. It communicates with Engine Management Unit (EMU)
 D. It is used on turbochargers for both diesel and gasoline engines
 A. Plain journal bearing
 B. Semi-floating bearing
 C. Fully-floating bearing
 D. Ball bearing
 A. Piston ring seals
 B. Labyrinth seals
 C. Brush seals
 D. Carbon face seals
 A. World Rally
 B. 24 Hours of Le Mans
 C. NASCAR
 D. Pikes Peak Hill Climb