T OR F 1- A sailboat can use wind energy and water currents to move? 2-...

T OR F

1- A sailboat can use wind energy and water currents to move?

2- Wind turbines must be spaced to minimize turbulence?

3- A wind farm is a collection of wind turbines?

4- Water can be used as both a moderating and cooling material in nuclear fission reactors?

Solutions

Expert Solution

1- A sailboat can use wind energy and water currents to move?

answer : True.

2- Wind turbines must be spaced to minimize turbulence?

Answer - true. Wind turbines work best with smooth flowing wind. If anything disturbs the air flow, it creates turbulence, making the turbine less efficient. Each wind turbine creates turbulence in the area behind and around it, so the turbines need to be spaced well apart from each other.

3-A windfarm is a collection of wind turbines?

Answer : True . Wind farms are arrays of large turbines designed to generate utility-scale electrical power.

4- Water can be used as both a moderating and cooling material in nuclear fission reactors?

Answer : water can be used as a moderator but directly as a cooling material.

FALSE.

Coolant in a nuclear reactor is used to remove heat generated from it. It flushes out heat to electrical generators and environment.

Boiling water reactors/ Pressurized water reactors: Light water (H2O)

Pressurized heavy water reactors/ Advanced heavy water reactors: Heavy Water (D20)

Fast Neutron Reactors: Liquid Sodium (Na2)

Gas cooled reactors: carbon dioxide (CO2)/ Helium

These are the coolants used in respective reactors. Their usage is subject to reactor design and energy of neutrons populated in the nuclear reactor. Some other materials (like NaK, Lead) can also be used as coolant in nuclear reactors and some are under research.

Amanda K answered 1 year ago

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