Hydraulics and Fluid Mechanics in ME Alcohol is used in manometers because It has low surface tension It can provide longer column due to low density It has low vapour pressure It is clearly visible It has low surface tension It can provide longer column due to low density It has low vapour pressure It is clearly visible ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A model of a reservior is drained in 4 mts by opening the sluice gate. The model scale is 1: 225. How long should it take to empty the prototype ? 4 (225)1/3 minutes 4 minutes 4 x V225 minutes 4 x (225)3/2 minutes 4 (225)1/3 minutes 4 minutes 4 x V225 minutes 4 x (225)3/2 minutes ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When a body is placed over a liquid, it will sink down if None of these Gravitational force is equal to the up-thrust of the liquid Gravitational force is less than the up-thrust of the liquid Gravitational force is more than the up-thrust of the liquid None of these Gravitational force is equal to the up-thrust of the liquid Gravitational force is less than the up-thrust of the liquid Gravitational force is more than the up-thrust of the liquid ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The most economical section of a rectangular channel is one which has hydraulic mean depth or hydraulic radius equal to Twice the depth Half the breadth Half the depth Twice the breadth Twice the depth Half the breadth Half the depth Twice the breadth ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a lock-gate, the reaction between two gates is (where P = Resultant pressure on the lock gate, and α = Inclination of the gate with the normal to the side of the lock) 2p/sin (α/2) p/2sinα p/sinα 2p/sinα 2p/sin (α/2) p/2sinα p/sinα 2p/sinα ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME According to fan laws, for fans having constant wheel diameter, the pressure varies Directly as fan speed Square of fan speed Square root of fan speed Cube of fan speed Directly as fan speed Square of fan speed Square root of fan speed Cube of fan speed ANSWER DOWNLOAD EXAMIANS APP
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