emissions of a vehicle using biogas from dedicated biomass crops are

Electric Vehicles and Mobility

Chapter 2 assessment

Question 1

TTW (Tank-to-Wheels) emissions of a vehicle using biogas from dedicated biomass crops are:

1 / 1 point

the same as those of a vehicle using fossil natural gas;

higher than those of vehicle using fossil natural gas;

zero.

Yes. This is the carbon neutrality principle, the CO₂ emissions released during biogas combustion are considered to be the same as those captured by the crops while growing.

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Question 2

From a WTW (Well-to-Wheels) perspective, the electric vehicle has more advantages in a country with an electric power mix:

1 / 1 point

such as that of China, with more than 70% of the electricity being produced from coal;

such as that of Brazil, with more than 60% of the electricity produced from hydroelectricity;

such as that of France, with more than 70% of the electricity produced from nuclear power and 10% from hydroelectricity.

Yes. Good answer, this energy mix has two low-carbon energy sources: nuclear and renewable. However, this electricity mix can have other impacts.

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Question 3

Prospective scenarios: (Select the correct answer(s))

1 / 1 point

only make sense as part of the production of a set of several alternative scenarios;

Yes. Forward planning using prospective scenarios involves exploring several possible futures. We assume that we do not choose the world in which we will evolve.

allow to predict the exact evolution of greenhouse gas (GHG) emissions in the absence of an interventionist policy;

do not check any of the previous proposals.

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Question 4

IPCC prospective scenarios: (Select the correct answer(s))

1 / 1 point

highlight that controlling demographics always imply lower emissions

assume that the most likely scenario is rapid economic growth

do not check any of the previous proposals

Indeed, they don’t. Controlling demographics is not enough to guarantee lower emissions. Moreover, forward planning using prospective scenarios is not intended to quantify the probability

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Question 5

Reduction of air pollutant emissions from transportation:

1 / 1 point

is already finalized in Europe thanks to the Euro standards

is concomitant with the decline in greenhouse gas emissions

can only be total with electric cars

Yes. But this can lead to simply transferring emissions to the electricity sector (which has the advantage of allowing the implementation of solutions for treating these emissions on fixed sites – po

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Question 6

When two identical sound sources emit simultaneously and independently, the resulting sound pressure level is:

1 / 1 point

doubled

increased by 2 dB

increased by 3 dB

Yes. With logarithmic rules to be used with decibels, to double the sources is equivalent to add a 10*log(2) term, i.e. 3 dB.

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Question 7

A vehicle I with an internal combustion engine and a vehicle E with an electric engine, are fitted with identical tires. They are driving one after the other at constant speed of 70 km/h. Which of these two vehicles will produce the highest sound pressure level when passing by a sound level meter located on the road side?

1 / 1 point

vehicle I

vehicle E

Neither, the level will be identical for both vehicles

Yes.At this speed, tire/road noise predominates for both vehicles. And because they are equipped with the same tires, their sound emission will be roughly the same.

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Question 8

Under which condition(s) will the impact of electric vehicles on urban noise reduction be significant? (Select the correct answer(s))

1 / 1 point

low traffic speed (< 40 km/h)

Yes. Noise reduction of an EV compared to an ICE vehicle of the same range is higher when engine noise predominates. That is the case at low speed.

road paved with rough cobblestones

the proportion of electric vehicles in the traffic is high

Yes. The logarithmic addition of noise levels gives more importance to highest levels. The noisiest sources (ICE vehicles) must be in a proportion as small as possible –

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Question 9

For the Electric Vehicle (EV) in France, which life cycle stage has the highest contribution to climate change potential?

1 point

production of components

Or assembly

production of electricity for charging the battery

assembly

vehicle use phase

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Question 10

Does the EV perform better than the ICEV on any environmental impact? (Select the correct answer(s))

1 / 1 point

Yes, the EV is « greener ».

No, it only performs better for GHG (emissions of GreenHouse Gases).

It depends on the considered impacts: it performs better on GHG emissions and worse on acidification.

True. In France, the EV performs better than the ICEV on the GHG criterion (starting from 50,000 km), but also on the photochemical ozone creation potential (starting from 60,000 km),

It depends not only on the considered impacts, but also on the overall driving distance during life time and on the electricity mix.

True. In France, the EV performs better than the ICEV on the GHG criterion (starting from 50,000 km), but also on the photochemical ozone creation potential (starting from 60,000 km), and on the depletion of fossil resources potential (starting from 30,000 km). The EV is roughly equivalent to the

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emissions of a vehicle using biogas from dedicated biomass crops are

Electric Vehicles and Mobility

Chapter 2 assessment

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The following services reflect the emergence of the collaborative

The electric vehicle market in France is characterized by

A cost benefit analysis

The population density of a given area is 40000 inhabitants per square kilometer

You want to install a public charging terminal in a residential area