Top 1000+ Solved Fluid Mechanics (FM) MCQ Questions Answer
Q. Calculate the value of Sf for trapezoidal channel having depth 2m, width 5m and side slope of1H:1.5V. Given: dy/dx= 1.18x10-3, S0= 1 in 1000, C= 50.
a. 0.00001
b. 0.00002
c. 0.00003
d. 0.00004
Q. When S0 is equal to zero, it is called -----
a. adverse slope
b. horizontal slope
c. critical slope
d. mild slope
Q. Specific energy in GVF changes only under which of the following conditions:
a. difference between bed slope and slope of the energy line
b. both bed slope and energy slope are equal
c. presence of bed slope alone
d. presence of energy slope alone
Q. When Yn is greater than Yc and So greater than 0, it is called as ----
a. adverse
b. horizontal
c. critical
d. mild
Q. A slope based on the culvert bottom is called----
a. hydraulic slope
b. hydraulic curve
c. adverse slope
d. horizontal slope
Q. When S0 greater than 0 and Yn less than Yc it is called as
a. adverse
b. horizontal
c. critical
d. steep
Q. To obtain maximum hydraulic efficiency of pelton turbine, blade velocity should be Times the inlet velocity of jet.
a. Half
b. One quarter
c. Twice
d. Thrice
Q. Among the following which turbine has least efficiency?
a. Pelton turbine
b. Kaplan turbine
c. Francis turbine
d. Propeller turbine
Q. A hydraulic coupling belongs to the category of
a. Energy absorbing machines
b. Energy generating machines
c. Power absorbing machines
d. Energy transfer machines
Q. The electric power which is obtained from hydraulic energy
a. Thermal power
b. Mechanical power
c. Solar power
d. Hydroelectric power
Q. At present which is cheapest means of generating power_
a. Thermal power
b. Nuclear power
c. Hydroelectric power
d. Electric Power
Q. Pipes of largest diameter which carry water from reservoir to the turbines is known as_
a. Head stock
b. Tail race
c. Tail stock
d. Pen stock
Q. is an inward radial flow reaction turbine?
a. Pelton turbine
b. Kaplan turbine
c. Francis turbine
d. Propeller turbine