Fluid Mechanics MCQ with Answers

Fluid Mechanics MCQ with Answers

206) A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal to

Answer is:

10 kg

207) Cavitation is caused by

Answer is:

low pressure

208) Cavitation will begin when

Answer is:

the pressure at any location reaches an absolute pressure equal to the saturated vapour pressure of the liquid

209) Principle of similitude forms the basis of

Answer is:

designing models so that the result can be converted to prototypes

210) For similarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal

Answer is:

all the four ratios of inertial force to force due to viscosity, gravitation, sur-face tension, and elasticity