Consider the following statements:1. All machines consume energy2. Ele...
Solution: d) Lets critically analyse each option.
01: Just because all machines consume energy; and electricity provides energy, does not mean that electricity is the only source of energy. Machines can run on other sources of energy too. So it is wrong.
02: Electricity provides energy does not mean it is only source providing energy. Hence, 02 is also wrong.
03: In the light of the above discussion, 03 is also wrong.
04: From statements 3 and 4, this seems the most reasonable option. Hence, (d)
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Consider the following statements:1. All machines consume energy2. Ele...
Explanation:
Statement 1: All machines consume energy.
This statement implies that every machine requires some form of energy to operate, whether it be electricity, fuel, or any other source.
Statement 2: Electricity provides energy.
This statement states that electricity is a source of energy. It is one of the forms of energy that can be used to power machines.
Statement 3: Electrically operated machines are cheap to maintain.
This statement suggests that machines that are powered by electricity are relatively inexpensive to maintain compared to machines that use other forms of energy. This could be due to factors such as lower maintenance costs, easier availability of electric components, or simpler design of electric machines.
Statement 4: Electrically operated machines do not cause pollution.
This statement indicates that machines that run on electricity do not emit pollutants into the environment. Unlike machines that run on fossil fuels, which produce harmful emissions, electrically operated machines are considered to be cleaner and more environmentally friendly.
Inference: Electrically operated machines are preferable to use.
Based on the given statements, we can draw the inference that electrically operated machines are preferable to use. This is because electric machines consume energy, electricity provides energy, they are cheap to maintain, and they do not cause pollution. Therefore, electrically operated machines have advantages over machines that use other forms of energy such as fuel.
Conclusion:
The correct inference that can be drawn from the given statements is that electrically operated machines are preferable to use. This is due to their energy consumption, the availability of electricity as an energy source, the relatively low maintenance costs, and the absence of pollution associated with their operation.
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