Top 1000+ Solved Fluid Mechanics (FM) MCQ Questions Answer
Q. is obtained by dividing total rate of flow through the turbine by rate of flow through single jet.
a. Number of jets
b. Diameter of jets
c. Velocity of jets
d. Speed ratio
Q. If diameter of jet is 85mm and diameter of runner is 1.5 meter then calculate width of buckets.
a. 400mm
b. 500mm
c. 420mm
d. 425mm
Q. If diameter of jet is 85mm and diameter of runner is 1.5 meter then depth of buckets is
a. 100mm
b. 105mm
c. 106mm
d. 102mm
Q. Radial flow reaction turbines are those turbines in which water flows
a. Radial direction
b. Axial direction
c. Tangential direction
d. All of the mentioned
Q. Main parts of radial flow reaction turbines are
a. Casing
b. Guide mechanism
c. Draft tube
d. All of the mentioned
Q. Radial flow reaction turbines contain spiral casing which area
a. Remains constant
b. Gradually decreases
c. Gradually increases
d. Suddenly decreases
Q. consists of stationary circular wheel all around the runner of turbine
a. Casing
b. Guide mechanism
c. Runner
d. Drafting
Q. The casing of radial flow reaction turbine is made of spiral shape, so that water mayenter the runner
a. Variable acceleration
b. Constant acceleration
c. Variable velocity
d. Constant velocity
Q. allow the water to strike the vanes fixed on runner without shock at inlet
a. Casing
b. Guide vanes
c. Runner
d. Draft tube
Q. The pressure at the exit of runner of reaction turbine is generally than atmospheric pressure
a. Greater
b. Lesser
c. Constant
d. Equal
Q. is a pipe of gradually increasing area used for discharging water from exit of the turbine to the tail race
a. Casing
b. Guide mechanism
c. Draft tube
d. Runner
Q. and of radial flow reaction turbine are always full of water.
a. Casing and runner
b. Casing and penstocks
c. Runner and penstocks
d. Runner and draft tube
Q. governs the flow of water entering the runner blades.
a. Casing
b. Guide vanes
c. Draft tube
d. Runner