Question

exam lesson name: energy conversions
exam number: 700697rr
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question 13 of 20 :
select the best answer for the question.

1. which type of engine has a wheel with several blades mounted on a shaft that rotate a shaft when hit with heated air at a high velocity?

○ a. heat engine
○ b. gas turbine engine
○ c. internal combustion engine
○ d. diesel engine
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Explanation:

To solve this, we analyze each option:

• Option A (Heat engine): A broad term; doesn't specifically describe the blade - shaft - heated air mechanism.
• Option B (Gas turbine engine): Works by having a turbine (wheel with blades) rotated by high - velocity heated air (from combustion or other heat sources), matching the description.
• Option C (Internal combustion engine): Uses internal combustion (like in cars), not primarily a turbine with blades driven by heated air hitting them.
• Option D (Diesel engine): A type of internal combustion engine, so also doesn't match the turbine - blade - heated air description.

Answer:

B. Gas turbine engine