Question 1

Nuclear energy is only harmful.

Accepted Answer

Nuclear energy has both benefits and risks. It can generate large amounts of low-carbon electricity, which helps in the fight against climate change. However, it also produces radioactive waste and has the potential for serious accidents, as seen in Chernobyl and Fukushima.

Question 2

Which State in India nuclear accident took place?

Accepted Answer

A

Question 3

Which one of the following medical condition caused by the high exposure of radiation?

Accepted Answer

Radiation exposure can cause mutations in the DNA, leading to various health issues, including cancer. It does not directly cause kidney stones, AIDS, or blood pressure issues.

Question 4

What is the main purpose of nuclear energy?

Accepted Answer

The main purpose of nuclear energy is to serve as an alternative source of energy, providing a significant amount of electricity without the direct emission of greenhouse gases. It is used in many countries to reduce reliance on fossil fuels and to meet energy demands in a more sustainable manner.

Question 5

The use of nuclear energy in the war had devastating effects on humans and on the earth.

Accepted Answer

The use of nuclear weapons in Hiroshima and Nagasaki during World War II caused immediate and long-term devastating effects on human health, the environment, and the Earth's ecosystems, including deaths, injuries, radiation sickness, and genetic damage.

Question 6

Spillway discharges the overflow water to the downstream side when the reservoir is full.

Accepted Answer

Spillways are designed to safely convey excess water from a dam or reservoir to the downstream area, preventing water from overtopping the dam and potentially causing damage or failure.

Question 7

Trash racks are built for

Accepted Answer

Trash racks are installed to prevent debris, floating materials, and other objects from entering the turbine, which could cause damage or reduce efficiency.

Question 8

Penstock in a hydroelectric power plant is

Accepted Answer

A penstock in a hydroelectric power plant is essentially a conduit or large pipe that delivers water from the forebay (reservoir) directly to the scroll case of the turbine, where the water's potential energy is converted into mechanical energy.

Question 9

Draft tube increases the operating head on the turbine.

Accepted Answer

The draft tube increases the pressure head at the turbine outlet, which in turn increases the operating head on the turbine.

Question 10

Trash racks are located

Accepted Answer

Trash racks are located at the intake of a hydropower system to prevent debris from entering and damaging the turbines.

Question 11

What is the function of booms?

Accepted Answer

The answer of What is the function of booms?
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Question 12

How much is the average temperature at depth of 10 km of earth surface?

Accepted Answer

The average temperature at a depth of 10 km below the Earth's surface is typically around 200°C due to the geothermal gradient, which increases temperature with depth.

Question 13

What is hot molten rock called?

Accepted Answer

The answer of What is hot molten rock called?
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Question 14

What does EGS stand for in geothermal energy?

Accepted Answer

Enhanced Geothermal System (EGS) refers to a type of geothermal power technology that enhances or creates geothermal resources through the injection of fluids into the ground, increasing the extraction of heat from the earth.

Question 15

Who invented first geothermal plant?

Accepted Answer

Piero Ginori Conti is credited with inventing the first geothermal power plant in 1904 at Larderello, Italy.

Question 16

A geothermal solution containing appreciable amounts of sodium chloride or other salts is called as

Accepted Answer

Brine is the term used to describe a solution that contains high concentrations of sodium chloride or other salts, especially when referring to the context of geothermal solutions.

Question 17

Earth's outer layer rock is called as

Accepted Answer

The crust is the outermost layer of the Earth, consisting of the continents and the oceanic crust. It is the solid rock layer upon which we live.

Question 18

The hole on earth's surface from where the steam from the earth comes out is called as

Accepted Answer

A fumarole is an opening in Earth's crust, often found near volcanoes, from which steam and volcanic gases are emitted.

Question 19

A spring that shoots jets of hot water and steam into the air is called as

Accepted Answer

Geysers are springs that intermittently shoot jets of hot water and steam into the air, caused by the heating of groundwater by underground volcanic activity.

Question 20

Which kind geothermal plant is most common type?

Accepted Answer

Flash geothermal plants are the most common type. They work by taking high-pressure hot water from the ground, flashing it into steam by decreasing the pressure, which then drives a turbine to generate electricity.

Quiz 5: Nuclear and Geothermal Energy Concepts