Group 7 Week 1 Recap Test

What is the Stoichiometric ratio

• 16-22:1

• 14:7.1

• 14.7:1

• 8-10:1

Which Emissions does a 3 Way Catalytic Convertor Treat?

• HC, 02, NOX

• HC, CO2, CO

• O2, N2, H20

• HC, CO, NOX

What is additionally built into an O2 sensor apart from the sensing element?

• Air Flow meter

• Pressure Sensor

• Temp Sensor

• Heater Circuit

What is the purpose of EGR?

• Reduce HC

• Reduce CO

• Reduce Combustion Temperature, Reducing NOX Output

• Increasing Combustion Temperature, Reducing NOX Output

What is roughly 78% Of the air around us made up from?

• CO2

• CO

• Nitrogen

• Oxygen

What Does SCR Stand for?

• Selective Catalytic Reduction

• Selective Catalytic Reaction

• Selective Catalysing Ragent

• Selective Combustion Reorder

What Limits Boost Pressure in a turbocharger?

• Intercooler

• Recirc Valve

• Dump Valve

• Waste Gate Opening

What Harmful Emission does SCR Treat

• CO2

• NOX

• HC

• CO

What does VGT Stand for?

• Variable Grade Turbocharger

• Very Good Turbo

• Variable Geometry Turbocharger

• Variable Gauge Turbocharger

A key benefit of VGT Over conventional Turbochargers?

• Slower to react

• More Expensive

• Increased Turbo Lag

• Reduced Turbo Lag