AUT108 Week 10 Quiz Alternate Fuels

Tech A says that oil consumption for compressed natural gas vehicle (CNGV) engines is three times higher than for gasoline engines. Tech B says that a lot of room is needed for CNGV cylinders. Who is correct?

Select one:

• Tech A

• Tech B

• Both Techs A and B

• Neither Tech A nor B

Tech A states that LPG is lighter than air. Tech B states that LPG is the least carbon-emitting hydrocarbon fuel available. Who is correct?

Select one:

• Tech A

• Tech B

• Both A and B

• Neither A nor B

In some applications, such as urban transit passenger buses, as many as eight or more CNG cylinders are mounted on the roof and are encased in a special _______ enclosure.

Select one:

• Heavy plastic

• Fiberglass

• Silicon

• Aluminum

CNG cylinders come in _______ types, ranging from heaviest to lightest.

Select one:

• 3

• 4

• 5

• 6

An advantage of using ethanol is that it is a renewable energy source.

Select one:

• True

• False

_______ has several advantages over ethanol, such as higher energy content, lower water absorption, and better blending ability.

Select one:

• Biodiesel

• Butanol

• Methanol

• Biomass

With this type of electric motor, the rotor is made from very powerful rare earth permanent magnet alloys typically, neodymium-iron-boron or samarium-cobalt.

Select one:

• Multiphase

• Permanent magnet

• Brushless

• Synchronous

_______ turns off the ICE when the vehicle is at a standstill.

Select one:

• Power splitter

• Idle stop

• Displacement-on-demand

• Regenerative braking

Identify the type of hybrid drive configuration in which the engine always drives the wheels and keeps the batteries charged for starting from rest or when accelerating rapidly.

Select one:

• Series hybrid

• Parallel hybrid

• Series-parallel hybrid

• Power-split hybrid

Tech A states that a silent or still vehicle is an indication of a vehicle that is turned off. Tech B states that one should not assume that the vehicle is turned off because it is silent or still. Who is correct?

Select one:

• Tech A

• Tech B

• Both A and B

• Neither A nor B