Hydraulics and Fluid Mechanics in ME
A compound pipe is required to be replaced by a new pipe. The two pipes are said to be equivalent, if

Length of both the pipes is same
Diameter of both the pipes is same
Loss of head and discharge of both the pipes is same
Loss of head and velocity of flow in both the pipes is same

ANSWER DOWNLOAD EXAMIANS APP

Hydraulics and Fluid Mechanics in ME
When a body is placed over a liquid, it will float if

Gravitational force is more than the up-thrust of the liquid
Gravitational force is less than the up-thrust of the liquid
None of these
Gravitational force is equal to the up-thrust of the liquid

ANSWER DOWNLOAD EXAMIANS APP

Hydraulics and Fluid Mechanics in ME
Coefficient of resistance is the ratio of

Area of jet at vena-contracta to the area of orifice
Loss of head in the orifice to the head of water available at the exit of the orifice
Actual discharge through an orifice to the theoretical discharge
Actual velocity of jet at vena-contracta to the theoretical velocity

ANSWER DOWNLOAD EXAMIANS APP