Posted in Physics

It regulates the flow of working fluid (steam) supplying the prime mover!!

So, option D is your answer.

Hope this helps!


Related Questions

Posted in Physics

Describe two sources of fresh water

The two major sources for freshwater are:

Ground water – water found in shallow aquifers beneath the earth’s surface. This water is generally found at depths up to around 2,000 feet deep. Below that depth, water becomes too salty to drink.

Surface water – Water found in streams, rivers, lakes, and reservoirs and as the previous respondent suggested glaciers.

Hope this helps!

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Posted in Physics

6 questions: What percentage of the earth is covered by water? Did dinosaurs and humans ever exist at the same time? What is Darwin’s theory of the origin of species? Why is the sky blue? What causes a rainbow? Why does a year consist of 365 days and a day of 24 hours?

For question 1: What percentage of the earth is covered by water?

Your answer for question 1:

About 71 percent of the earth’s surface is covered by water.

For Question 2:

Did dinosaurs and humans ever exist at the same time?

Your answer for question 2:

No. Dinosaurs went extinct at the end of the
Cretaceous period, 65 million years ago. Modern humans did not appear
until around 200,000 years ago.

For question 3:

What is Darwin’s theory of the origin of species?

Your answer for question 3:

Darwin’s theory of species origination says that
natural selection chooses organisms that possess variable and heritable
traits and that are best suited for their environments.

For question 4:

Why is the sky blue?

Your answer for question 4:


Solar radiation sunlight is scattered across the
atmosphere by a process called diffused sky radiation. The sky is blue
because much more short-wave radiation, blue light, is scattered
across the sky than long-wave radiation, red light.

For question 5:

What causes a rainbow?

Your answer for question 5:

Rainbows can be seen when there are water droplets in the
air and the sun is shining. Sunlight, which contains all colors, is
refracted, or bent, off the droplets at different angles, splitting
into its different colors of red, orange, yellow, green, blue, indigo
and violet.

For question 6:

Why does a year consist of 365 days and a day of 24 hours?

Your answer for question 6:

A year, 365 days, is the time it takes for the Earth to
travel around the Sun. A day, 24 hours, is the time it takes for the
Earth to spin around once on its axis.

Hope all of this helps you today

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