English 2 UNIT 5

A futuristic wind turbine in a vibrant landscape with a high-speed train racing by, showcasing renewable energy and advanced engineering.

Wind Turbines and High-Speed Trains Quiz

Test your knowledge on wind turbines and high-speed trains with this comprehensive quiz. Each question focuses on the mechanics, efficiency, and engineering aspects of these technologies.

  • 35 engaging questions
  • Multiple choice format
  • Learn about renewable energy and engineering principles
35 Questions9 MinutesCreated by TransformingEarth2021
The fact that wind turbines consume no fuel and waste very little energy is clearly a fundamental advantage. But just how _______they are?
Efficient
Unreliable
Suitable
Effective
Clearly, wind turbines need to be located on relatively windy sites in order to function From a meteorological standpoint, what kinds of geographical location are the most ______?
Efficient
Unreliable
Suitable
Effective
Turbines are generally placed at the tops of tall towers, where wind speeds are higher, thus making them more ________.
Efficient
Unreliable
Suitable
Effective
Wind turbines rarely function continuously, due to the fact that wind speeds are _________.
Inefficient
Inadequate
Insufficient
Inconsistent
Transmitting electricity over long distances is inherently ______ due to power loss from overhead or underground powerlines.
Inefficient
Inadequate
Insufficient
Inconsistent
The generating capacity of wind turbines is generally ________ for it to be relied upon 100%.
A. inefficient
B. inadequate
C. insufficient
D. B and c
Some early wind turbines were ________, suffering breakdowns caused by inaxial stresses stemming from higher wind loads on the upper blade.
Inefficient
Unreliable
C. insufficient
Ineffective
So that downward force means the structure is in ______, especially near the bottom.
Bending
Friction
Pressure
Compression
A horizontal load, exerted by air _______ against one side of the structure.
Bending
Friction
Pressure
Compression
Because the structure is fixed at ground level, and free at the top, that generates ______ forces.
Bending
Friction
Pressure
Compression
When elements bend, you have opposing forces: ________at one side, ________at the other.
Bending, torsion
Tension, shear
Pressure, friction
Compression, tension
Wind effectively tries to slide the structure along the ground, and the foundations below the ground resist that. The result of that is _______ force.
Shear
Torsion
Expansion
Friction
The foundations need to rely on _________with the ground to resist the pull-out force.
Shear
Torsion
Expansion
Friction
The action of the wind can also generate _______You get a twisting force.
Shear
Torsion
Expansion
Friction
When concrete absorbs heat from the sun, you get _______; as soon as the sun goes in, there's _______.
Shear, tension
Torsion, friction
Expansion, contraction
Friction, pressure
The record speed exceeded the standard operating speed by a ________ margin.
Tiny
Huge
Slightly
Significantly
The train was modified to a. ________ extent.
Significant
Considerable
Certian
Tiny
The modified train was _________ shorter.
Significantly
Significant
Considerably
Considerable
Changes were made to the bodywork, to make it _________ more aerodynamic.
Huge
Tiny
Slightly
Certain
The wheels on the modified train were ______ bigger
Huge
Tiny
Certain
Marginally
The power of the electric motors was __________ higher than the standard units.
Substantially
Considerable
Significant
Huge
Standard high-speed trains can be made to go faster by a. ________ amount.
Substantially
Considerable
Significant
Huge
The supply voltage in the catenary cables had to be increased by a._________ amount. (From 25,000 to 31,000 volts)
Substantially
Considerable
Significant
Huge
To limit oscillation, the tension of the catenary cables was _________increased. (By 60%.)
Substantially
Considerable
Significant
Huge
On some curves, the camber of the track was increased _________ (By a few centimeters)
Huge
Tiny
Certain
Marginally
The previous record was beaten by ________ margin, (Old rec. 60 Km/h, new 570Km/h rec.)
Huge
Tiny
Certain
Marginally
In perfect conditions the TGV could probably have gone __________ faster. (From 5 to 10 km/)
Huge
Tiny
Slightly
Significantly
The bolts fixing the camera to the sled had to ___________ high shear forces.
Cope with
Capable of
Unable to
Intended to
The sled's rockets were __________ generating enormous thrust.
Cope with
Capable of
Unable to
Intended to
The pools at the end of the track were __________ stop the sled rapidly.
Cope with
Able to
Exceed
Intended to
The skids on the sled had to ________ high levels of friction.
Surpass
Capable of
Unable to
Withstand
At full speed, john Stapp was _________ several tons of air pressure.
Exceeded
Resisted
Subjected to
None of the above
The rear of the sled was __________ resist the shock of deceleration and broke off.
Surpass
Capable of
Unable to
Withstand
Doctors thought people were ___________ surviving forces of 17 Gs and above.
Surpass
Incapable of
Exceed
Withstand
John Stapp _________ the 17G limit by a huge margin.
Able to
Incapable of
Exceed
Withstand
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