Virtual Labs

1. Which of the following is an example of an impulse turbine?

a: Francis turbine Explanation

Explanation

b: Kaplan turbine Explanation

Explanation

c: Pelton wheel turbine Explanation

Explanation

d: Propeller turbine Explanation

Explanation

2. In which type of turbine does water flow over the runner at atmospheric pressure?

a: Impulse turbine Explanation

Explanation

b: Reaction turbine Explanation

Explanation

c: Mixed-flow turbine Explanation

Explanation

d: Axial-flow turbine Explanation

Explanation

3. Hydraulic turbines convert:

a: Electrical energy into mechanical energy Explanation

Explanation

b: Hydraulic energy into mechanical energy Explanation

Explanation

c: Mechanical energy into hydraulic energy Explanation

Explanation

d: Thermal energy into hydraulic energy Explanation

Explanation

4. Which component of a Pelton wheel turbine directs the jet onto the buckets?

a: Draft tube Explanation

Explanation

b: Runner Explanation

Explanation

c: Casing Explanation

Explanation

d: Nozzle Explanation

Explanation

5. Which turbine is most suitable for low-head and high-discharge conditions?

a: Pelton turbine Explanation

Explanation

b: Kaplan turbine Explanation

Explanation

c: Turgo turbine Explanation

Explanation

d: Cross-flow turbine Explanation

Explanation

6. The draft tube in a reaction turbine is used to:

a: Increase the discharge only Explanation

Explanation

b: Convert pressure energy into electrical energy Explanation

Explanation

c: Recover kinetic energy at the runner exit Explanation

Explanation

d: Increase the head at the inlet Explanation

Explanation

7. The specific speed of a turbine is defined as the speed of a geometrically similar turbine that develops unit power under:

a: Unit head Explanation

Explanation

b: Unit discharge Explanation

Explanation

c: Unit efficiency Explanation

Explanation

d: Unit velocity Explanation

Explanation

8. Which turbine generally possesses the highest specific speed?

a: Pelton turbine Explanation

Explanation

b: Francis turbine Explanation

Explanation

c: Turgo turbine Explanation

Explanation

d: Kaplan turbine Explanation

Explanation

9. Cavitation in hydraulic turbines occurs when:

a: Pressure rises above atmospheric pressure Explanation

Explanation

b: Flow velocity becomes zero Explanation

Explanation

c: Pressure falls below vapor pressure of water Explanation

Explanation

d: Water temperature becomes constant Explanation

Explanation

Turbines Experiment