Who invented the propeller

What was the name of the one who invented the propeller?
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1 Answer

Answer :

Propeller invented by Josef Ressel (Otto Wichterle invented contact lenses): D
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How is air produced in mechanical draught cooling tower? A] Air Tuyeres. B] Propeller fans C] Air blowers. D] Louvre

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Description : The advantage of a constant speed propeller over a fixed pitch propeller is: a. Higher maximum thrust available b. Higher maximum efficiency c. More blade surface area available d. Nearly maximum efficiency over wide speed range

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Which statement best describes the operating principle of a constant-speed propeller? a. As throttle setting is changed by the pilot, the prop governor causes pitch angle of the propeller blades to remain unchanged b. The propeller control regulates the engine RPM and in turn the propeller RPM c. A high blade angle, or increased pitch, reduces the propeller drag and allows more engine power for take-offs d. As the propeller control setting is changed by the pilot, the RPM of the engines remains constant as the pitch angle of the propeller changes

Description : Which statement best describes the operating principle of a constant-speed propeller? a. As throttle setting is changed by the pilot, the prop governor causes pitch angle of the propeller blades to ... the pilot, the RPM of the engines remains constant as the pitch angle of the propeller changes

Last Answer : b. The propeller control regulates the engine RPM and in turn the propeller RPM

The angle of attack of a fixed pitch propeller: a. Depends on forward speed only b. Depends on forward speed and engine rotational speed c. Depends on engine rotational speed only d. Is constant for a fixed pitch propeller

Description : The angle of attack of a fixed pitch propeller: a. Depends on forward speed only b. Depends on forward speed and engine rotational speed c. Depends on engine rotational speed only d. Is constant for a fixed pitch propeller

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Agitator(propeller or paddle)type for agitating liquid in power sprays have a velocity of a.100-120 rpm b.60-100 rpm c.10-20 rpm d. none of the above

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What are the equipments used for mixing of liquids? Give in detail about ‘Propeller Mixer’.

Description : What are the equipments used for mixing of liquids? Give in detail about ‘Propeller Mixer’.

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Draw a neat sketch of a hollow propeller shaft. Label all the parts. State the necessity of Universal joint.

Description : Draw a neat sketch of a hollow propeller shaft. Label all the parts. State the necessity of Universal joint.

Last Answer : Necessity of universal joint: ● A universal joint is used where two shafts are connected at an angle to transmit the torque. ● Universal joint is used to transmit motion at varying angles.

State the functions of slip joint in propeller shaft.

Description : State the functions of slip joint in propeller shaft.

Last Answer : Function of Slip Joint- It is provided at the gearbox end, this joint allows variation in length of the propeller shaft