Free POSS MCQ Questions and Answers — Questions and Answers
Question 1: Which part of the paragraph best exemplifies why a hydroelectric facility ought to be built close to a large body of water?
- "Hydroelectric power plants are dependent on the water supply."
- "In a typical arrangement, the power plant is built atop or alongside a dam, through which water is permitted to flow at a controlled pace."
- "These amount of energy that can be developed by the plant is directly proportional to the volume of water at the site." (Correct answer)
- "These reservoirs submerge huge amounts of land and can be have devastating effects in wildlife and human settlements alike."
Correct answer: "These amount of energy that can be developed by the plant is directly proportional to the volume of water at the site."
This detail is provided in the final clause of the first paragraph.
Question 2: What function do the alternators serve in a hydroelectric power plant?
- maintain efficiency
- spin the turbines
- cool the water
- generate the electrical power (Correct answer)
Correct answer: generate the electrical power
The final phrase of the opening paragraph states this.
Question 3: Which of the following does a hydroelectric power plant NOT have to offer?
- They are inexpensive to operate (Correct answer)
- They are inexpensive to construct
- They are durable
- They are clean
Correct answer: They are inexpensive to operate
The third paragraph's second phrase says that building hydroelectric power facilities "costs a considerable deal of money."
Question 4: What does the sentence "Hydroelectric power plants offer numerous excellent features relative to other plants" indicate in the second paragraph? <br> There are numerous parallels between hydroelectric power facilities and other plants.
- Hydroelectric power plants have many disadvantages compared to other plants.
- Hydroelectric power plants have many differences from other plants.
- Hydroelectric power plants have many similarities with other plants.
- Hydroelectric power plants have many advantages over other plants. (Correct answer)
Correct answer: Hydroelectric power plants have many advantages over other plants.
This statement suggests that hydroelectric power plants are discovered to have a number of better attributes when compared to other power plants.
Question 5: Which of the following statements most likely rings true given the facts in the passage?
- Hydroelectric power plant must be built next to natural bodies of water.
- An old hydroelectric power plant is approximately as efficient as a new one. (Correct answer)
- Most hydroelectric power plants are built on sandy oil.
- Hydroelectric plants are more expensive to operate than nuclear plants.
Correct answer: An old hydroelectric power plant is approximately as efficient as a new one.
The penultimate language of the second paragraph, which reads, "Hydroelectric plants are regarded to be one of the most durable systems, which means that they keep their efficiency throughout their lifespan," implies this.
Question 6: Which of these three pulleys, numbered 1, 2, or 3, rotates the fastest?
- two
- three (Correct answer)
- one
Correct answer: three
Every point on the belt is moving at the same linear speed, and as a result, so are all the points outside of each pulley. The pulley with the shortest circumference will thus spin the most quickly.
Question 7: The pump motor has to be started, which switch should be closed—switches 1, 2, or 3?
- three (Correct answer)
- two
- one
Correct answer: three
A closed loop between the generator and the motor is only created by switch number three. While shutting 1 has no effect, closing 2 results in a short circuit.
Free POSS MCQ Questions and Answers
Which part of the paragraph best exemplifies why a hydroelectric facility ought to be built close to a large body of water?