WorksheetsD 38 QUIZ OF THE DAY
Total questions: 30
Worksheet time: 30mins
Name
Class
Date
1.
Which type of dam is best suited for narrow gorges with strong abutments?
a)
Gravity dam
b)
Arch dam
c)
Buttress dam
d)
Earth dam
2.
Which arch dam type uses the maximum amount of concrete?
a)
Constant angle arch dam
b)
Varying radius arch dam
c)
Constant radius arch dam
d)
Double curvature arch dam
3.
Which dam type is preferred for higher heights and uses arches to transmit loads to buttresses?
a)
Deck type buttress dam
b)
Massive head type buttress dam
c)
Multiple arch type buttress dam
d)
Earth dam
4.
Assertion (A): Zoned earth dams have multiple layers of different materials.
Reason (R): The central core is pervious and outer shells are impervious.
a)
Both A and R are true and R is the correct explanation of A
b)
Both A and R are true but R is not the correct explanation of A
c)
A is true but R is false
d)
A is false but R is true
5.
Match the following dam types with their characteristics:
A. Timber dam 1. Life of 30–40 years
B. Rockfill dam 2. Shock absorption capacity
C. Steel dam 3. High maintenance due to corrosion
a)
A-1, B-2, C-3
b)
A-2, B-1, C-3
c)
A-3, B-2, C-1
d)
A-1, B-3, C-2
6.
What is the typical lifespan of timber dams?
a)
10-20 years
b)
20-30 years
c)
30-40 years
d)
40-50 years
7.
Which type of dam is the most economical among single curvature arch dams?
a)
Constant radius arch dam
b)
Varying radius arch dam
c)
Constant angle arch dam
d)
Double curvature arch dam
8.
Which dam type uses sloping membrane to transmit water load to buttresses?
a)
Deck type dam
b)
Massive head type dam
c)
Buttress dam
d)
Arch dam
9.
Which type of dam is not suitable for steep slopes and cannot be used as overflow dams?
a)
Earth dam
b)
Gravity dam
c)
Arch dam
d)
Buttress dam
10.
Assertion (A): Phreatic line is the line dividing saturated and unsaturated zones in an earthen dam.
Reason (R): It has the shape of a parabola and lies above the dam surface.
a)
Both A and R are true and R is the correct explanation of A
b)
Both A and R are true but R is not the correct explanation of A
c)
A is true but R is false
d)
A is false but R is true
11.
What type of dam is constructed using rock boulders and offers shock absorption?
a)
Earth dam
b)
Rockfill dam
c)
Steel dam
d)
Masonry dam
12.
Which dam construction method involves using slurry for automatic gradation?
a)
Rolled fill method
b)
Hydraulic fill method
c)
Buttress construction
d)
Zoned fill method
13.
What is the typical crest width for gravity dams according to Indian standards?
a)
4 m
b)
5 m
c)
6 m
d)
7 m
14.
Which failure in earthen dams results from erosion at the toe due to tailwater?
a)
Wave erosion
b)
Toe erosion
c)
Piping
d)
Gullying
15.
In a gravity dam, where is maximum compressive stress located when reservoir is full?
a)
At the crest
b)
At the heel
c)
At the toe
d)
At the gallery
16.
Which type of dam is no longer in use and considered obsolete?
a)
Hydraulic fill dam
b)
Zoned earth dam
c)
Rockfill dam
d)
Buttress dam
17.
Which protective measure is used to avoid wave erosion on the upstream face?
a)
Turfing
b)
Cutoff wall
c)
Stone pitching
d)
Blanket
18.
Which component is used in foundation to prevent seepage under a dam?
a)
Core wall
b)
Cutoff wall
c)
Gallery
d)
Blanket
19.
What is the formula for water pressure acting on a dam face?
a)
γwH
b)
γwH²/2
c)
γwH³
d)
γH/2
20.
Which component helps bring the saturation line within the body of the dam?
a)
Filter
b)
Core wall
c)
Cutoff wall
d)
Blanket
21.
Which component in a dam acts as an inspection chamber and helps in drainage?
a)
Gallery
b)
Outlet
c)
Sluice way
d)
Blanket
22.
What is the purpose of 'sod or turfing' on the downstream face of an earthen dam?
a)
Prevent seepage
b)
Prevent erosion due to rain
c)
Reduce wave action
d)
Measure water levels
23.
Which failure occurs when water flows over the dam due to insufficient freeboard?
a)
Seepage failure
b)
Piping failure
c)
Overtopping
d)
Toe erosion
24.
Which force acts upwards and opposes the weight of a dam?
a)
Water pressure
b)
Silt pressure
c)
Uplift pressure
d)
Ice pressure
25.
Which mode of failure is likely if the resultant of forces acts outside the base of dam?
a)
Sliding
b)
Tension failure
c)
Overturning
d)
Crushing
26.
Which parameter is used to define the saturation gradient in earthen dams?
a)
Phreatic line
b)
Core wall
c)
Filter line
d)
Blanket
27.
Which material is commonly used in core walls for seepage prevention?
a)
Coarse gravel
b)
Puddle clay
c)
Silt
d)
Concrete blocks
28.
Which structural element is present at the downstream base junction of a gravity dam?
a)
Heel
b)
Toe
c)
Base width
d)
Abutment
29.
Which load is considered in dam design specifically for colder countries?
a)
Earthquake load
b)
Silt pressure
c)
Wind pressure
d)
Ice pressure
30.
Which term refers to the margin between water level and dam top to prevent overtopping?
a)
Crest
b)
Base width
c)
Freeboard
d)
Abutment
100 %
