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WorksheetsDay 56-Nov 18-worksheet-Diploma-Dams
Total questions: 15
Worksheet time: 12mins
Which type of dam has a theoretical profile similar to the hydrostatic pressure diagram?
Earth dam
Gravity dam
Buttress dam
Rock-fill dam
The most economical single-curvature arch dam is —
Constant radius arch dam
Varying radius arch dam
Constant angle arch dam
Cupola dam
Which failure in earth dams is associated with erosion caused by tailwater?
(a)
In a buttress dam, load is transferred to foundation mainly through —
(a)
Varying radius arch dams use approximately how much concrete compared to constant radius dams?
100%
58%
43%
72%
The phreatic line inside an earth dam takes the shape of a —
(a)
Double-curvature arch dams are more economical than constant-angle single curvature dams. Select True or False.
True
False
Assertion–Reason: Assertion (A): In gravity dams, the major overturning force is water pressure. Reason (R): Water pressure decreases linearly with depth and acts vertically. Choose the best answer.
Both A and R are true, and R explains A
Both A and R are true, but R does not explain A
A is true, R is false
A is false, R is true
The main stabilizing force resisting sliding in a gravity dam is (a) .
The impermeable central portion provided in earth dams to prevent seepage is called the (a) .
The line separating saturated and unsaturated zones in an earth dam is the (a) line.
A temporary enclosure built in water to allow construction work is called a (a) .
The upstream slope of an earth dam is protected against wave erosion using (a) .
The impervious layer placed on the upstream side of an earth dam to reduce uplift is called
(a)
The hydrostatic horizontal force on a dam of height H is given by —
γwH
γwH2/2
γwH3/3
γwH2
