Top 1000+ Solved Fluid Mechanics (FM) MCQ Questions Answer
Q. In a horizontal rectangular channel a hydraulic jump with a sequent depth ratio of 5.0 is formed. Thisjump can be classified as
a. weak jump
b. oscillating jump
c. strong jump
d. steady jump
Q. For a given discharge in a horizontal frictionless channel two depths may have the same specificforce. These two depths are known as…
a. sudden depth
b. conjugate depths
c. sequent depths
d. normal and critical depths
Q. A turbine is a device, which converts
a. hydraulic energy into mechanical energy
b. mechanical energy into hydraulic energy
c. kinetic energy into mechanical energy
d. electrical energy into mechanical energy
Q. An impulse turbine:
a. is always operates submerged
b. is makes use of draft tube
c. is most suited for low head installation
d. operates by initial complete conversion to kinetic head
Q. An impulse turbine is installed
a. always above the tail race
b. always submerged
c. depends on flow situation
d. partly submerged
Q. A Pelton turbine is
a. an impulse turbine
b. a tangential flow
c. high had and low specific speed turbine
d. all of the above
Q. The reaction turbine is one in which the available hydraulic energy is converted to kinetic energybefore the fluid enters the runner
a. fully
b. partially
c. fully or partially
d. fully and partially
Q. The function of draft tube is
a. recuperation of energy
b. to make it possible to establish the turbine above tail race
c. both (a) and (b)
d. none
Q. A draft tube is a part of the installation of a
a. propeller turbine
b. pelton turbine
c. turbine impulse wheel
d. all the turbines
Q. The change of angular momentum in a pump is equal to the
a. Sum of speeds
b. Sum of individual momentum
c. Sum of temperatures
d. Sum of energy transferred from a body View Answer
Q. Conservation of angular momentum is described by
a. Newtons equation
b. Euler’s equation
c. Rutherford’s equation
d. Maxim equation View Answer
Q. Gear pumps are mainly used in chemical installations because they pump
a. High viscosity fluids
b. High density fluids
c. High pressure fluids
d. High temperature fluids View Answer
Q. The inlet passage of centrifugal pump is controlled by
a. Gate
b. Head race
c. Turbine
d. Pump View Answer
Q. Vertical Centrifugal pumps are also called as
a. Cantilever pumps
b. Hydrodynamic pump
c. Mechanical pump
d. Hydroelectric pump View Answer