WorksheetsASSESSMENT ENERGY EFFICIENCY (HYDRO)
Total questions: 13
Worksheet time: 7mins
6. Two types/category of hydro turbines:
i) Pelton
ii) Impulse
iii) Vertical Francis
iv) Reaction
i & ii
i & iii
ii & iii
ii & iv
8. Trashrack losses due to :
i) Trash accumulation
ii) Flow blockage infront
iii) Frame deformation
iv) Rusty
i,ii & iii
i,iii & iv
ii,iii & iv
All of the above
What is the component used to regulate the excess water / inflows at the dam?
Saddle dam
Penstock
Spillway / flood gate
Log boom
What are the factors that will effected the operational regime of the hydropower?
ii.System frequency
iii.Gas supply / curtailment
iv.Peak demand
i & ii
ii, iii, & iv
iii & iv
All of the above
The upstream and the downstream part of the dam are called
Forebay & tailrace
High side & low side
Inflow & outflow
Reservoir & riverflow
Which of the following are not in the variable in the overall efficiency calculation?
i.Discharge rate, m3/s
ii.Force, kgs-1
iii.Water density, kg/m3
iv.Momentum, kgm/s
i & iii
ii & iv
i, ii, & iii
ii, iii, & iv
Which of the following are the identified root causes for the turbine losses in hydro efficiency?
i.Degradation of electrical parts
ii.Algae
iii.Wicket gate mis-align
iv.Runner cavitation
i & iii
ii & iii
iii & iv
All of the above
