Question

Which is the incorrect statement about Carnot cycle?

• A. It is used as the alternate standard of comparison of all heat engines.
• B. It provides concept of maximising work output between the two temperature limits.
• C. All the heat engines are based on Carnot cycle
• D. None

Answer 1

The correct option is C All the heat engines are based on Carnot cycle

Given: Carnot cycle

Solution:

1. Carnot cycle is an ideal cycle so it is used as an alternate standard of comparison of all heat engines.

2. Carnot cycle has the highest efficiency theoretically. It means that Carnot engine gives maximum output work between two temperature limits.

3. As Carnot cycle is only an ideal cycle not a practical cycle so it is used only for comparison. All heat engines are not based on Carnot cycle.

Hence the correct option is C.