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Helen [10]
2 years ago
10

Technician A says that the use of methanol in internal combustion engines has declined over the years. Technician B says that th

e use of MTBE as a gasoline additive has declined over the years. Who is correct?
Engineering
1 answer:
enyata [817]2 years ago
4 0

Answer:

Both Technician A and B are correct

Explanation:

Methanol is used in internal combustion engines. However, the use of methanol in internal combustion engines has decreased lately even though it was thought to lead to cleaner emissions than gasoline. Methanol internal combustion engines produce formaldehyde which is also an environmental pollutant. Also, the cost of methanol is slightly higher than that of good quality gasoline.

MTBE replaced tetraethyllead as a gasoline additive because the former lead to the emission of particulate lead from automobile exhausts which is a serious environmental pollutant. The use of MTBE has declined over the years due to environmental concerns. It has been banned because it has been found to be a significant groundwater pollutant if gasoline containing MTBE is spilled or leaked at gas stations.

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Drag each tile to the correct box.
Trava [24]

Answer:

Bluray

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Explanation:

Blu ray can hold 25gb per layer

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Also, dvds can go up to 2 layers

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6 0
3 years ago
Jodie bought some shirts for 6$ each marge brought some shirts for 8$ each
Alex_Xolod [135]

Answer:

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Explanation:

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3 0
3 years ago
For a LED diode that has a= 632 nm, then the A1 is equal to:​
alexgriva [62]

Answer:

1.693242

Explanation:

The colors in the Light emitting diodes have been identified by wavelength which is measured in nano-meters. Wavelength is a function of LED chip material. The LED diode which has a = 632 then A1 will be 1.63242, this is calculated by 1 / 632. Wavelength are important for human eye sensitivity. The colors emitted from the LED will depend on the semiconductor material.

5 0
2 years ago
Because assembly language is so close in nature to machine language, it is referred to as a ____________.
My name is Ann [436]

Answer:

symbolic machine code.

Explanation:

The instructions in the language are closely linked to the machine's architecture.

5 0
3 years ago
Injector orifice patterms and size will affect propellant mixing and distribution. a)-True b)-False
alina1380 [7]

Answer: True

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The pattern and size of the orifice will define the variation in the amount of energy that could be produced.Thus the statement given is true.

4 0
3 years ago
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