# Hydraulics And Fluid Mechanics Set 4

This set of Hydraulics and Fluid Mechanics Multiple Choice Questions & Answers (MCQs) focuses on Hydraulics And Fluid Mechanics Set 4

Q1 | Hot wire anemometer is used to measure
Q2 | Venturimeter is used to
Q3 | According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to
Q4 | The pressure measured with the help of a pressure gauge is called
Q5 | The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the Centroid, if
Q6 | The most economical section of a rectangular channel is one which has hydraulic mean depth orhydraulic radius equal to
Q7 | Capillary action is due to the
Q8 | The intensity of pressure on an immersed surface __________ with the increase in depth.
Q9 | Which of the following statement is correct?
Q10 | A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will
Q11 | A flow through a long pipe at constant rate is called
Q12 | Choose the wrong statement
Q13 | The unit of dynamic viscosity in S.I. units is
Q14 | A perfect gas
Q15 | In a free nappe,
Q16 | In a static fluid
Q17 | One litre of water occupies a volume of
Q18 | A balloon lifting in air follows the following principle
Q19 | The ratio of absolute viscosity to mass density is known as
Q20 | Reynold's number is the ratio of inertia force to
Q21 | Metacentric height is given as the distance between
Q22 | In a footstep bearing, if the speed of the shaft is doubled, then the torque required to overcome the viscous resistance will be
Q23 | The continuity equation is connected with
Q24 | The most economical section of a trapezoidal channel is one which has hydraulic mean depth equal to
Q25 | The absolute pressure is equal to