Hydraulics and Hydraulic Machines MCQs (Part-11)

What is the primary function of a reaction turbine?

A To regulate water flow
B To convert kinetic energy into pressure energy
C To convert both pressure and kinetic energy into mechanical energy
D To only convert kinetic energy

What happens during a hydraulic jump in an open channel flow?

A Water velocity decreases and depth increases
B Pressure increases
C Water depth decreases
D Water velocity increases

How does energy dissipation occur in a hydraulic jump?

A The pressure remains constant
B Water accelerates downstream
C Water flows over a smooth surface
D The velocity of water decreases while its depth increases

What is hydrostatics in fluid mechanics?

A Study of flow resistance
B Study of fluid at rest
C Study of fluid in motion
D Study of energy conversion

Which structure is primarily designed to control water flow in a canal system?

A Hydraulic jump
B Spillway
C Flow control gate
D Surge tank

What is the primary use of a surge tank in hydraulic systems?

A Absorb pressure surges
B Store energy
C Increase water flow
D Reduce friction loss

In an open channel, what determines the velocity of flow?

A Channel roughness
B Flow rate and slope
C Fluid density
D Channel depth

How does a fluid coupling in a mechanical system function?

A Controls the fluid flow rate
B Regulates fluid temperature
C Transmits power using mechanical gears
D Smooths power transmission between shafts

What is the primary feature of a Kaplan turbine?

A High head, low flow capacity
B Nozzle to direct water to the blades
C Adjustable blades for varying flow conditions
D Fixed blades

What is the main purpose of a hydraulic structure in a water distribution system?

A To generate electricity
B To regulate water flow
C To store water
D To measure fluid velocity

In which scenario is a reaction turbine most efficient?

A High head, high flow
B Low head, low flow
C Low head, high flow
D High head, low flow

What is the purpose of canal hydraulics in water management?

A Measure water temperature
B Manage water distribution
C Control the quality of water
D Improve water velocity

How is energy typically dissipated in a spillway?

A By converting potential energy into kinetic energy
B By reducing the water’s pressure
C By causing turbulence and increasing depth
D By increasing the flow velocity

What does “flow distribution” refer to in hydraulics?

A How water flow is split across multiple channels or pipes
B The total volume of water passing through a system
C The energy conversion in turbines
D The allocation of flow rate across various channels

What is the key characteristic of an impulse turbine?

A It uses pressure energy to rotate the blades
B Water flows tangentially to the blades
C It uses both pressure and kinetic energy
D Water flows axially through the turbine