WorksheetsD36 QUIZ OF THE DAY
Total questions: 30
Worksheet time: 30mins
Name
Class
Date
1.
The base period of a crop is 120 days and the total water requirement is 40 cm. What is the duty in hectares per cumec?
a)
259.2
b)
86.4
c)
2592
d)
17.28
2.
If net irrigation requirement is 40 cm and application efficiency is 80%, what is the field irrigation requirement?
a)
32 cm
b)
50 cm
c)
48 cm
d)
60 cm
3.
Statement I: Crop period is always greater than base period.
Statement II: Base period includes only the watering duration.
a)
Both I and II are correct
b)
Only I is correct
c)
Only II is correct
d)
Both I and II are incorrect
4.
Statement I: Saline soils are best reclaimed by leaching.
Statement II: Gypsum is added to reclaim sodic soils.
a)
Only I is correct
b)
Only II is correct
c)
Both I and II are correct
d)
Both I and II are incorrect
5.
Which soil is known as 'white alkali'?
a)
Saline soil
b)
Sodic soil
c)
Alkaline soil
d)
Acidic soil
6.
Which crop has the highest Kor depth requirement?
a)
Wheat
b)
Rice
c)
Sugarcane
d)
Cotton
7.
Which of the following best describes 'Field Capacity'?
a)
Water that percolates freely
b)
Moisture retained after gravitational water drains
c)
Water at saturation point
d)
Oven-dried moisture
8.
Consumptive Use (Cu) of water is measured using:
a)
Gypsum block
b)
Tensiometer
c)
Lysimeter
d)
Piezometer
9.
What is the relation between Delta (Δ), Duty (D) and Base Period (B)?
a)
Δ = 864B / D
b)
D = 864Δ / B
c)
B = D / Δ
d)
D = B / Δ
10.
Which factor does NOT affect duty directly?
a)
Base period
b)
Canal conditions
c)
Transmissivity
d)
Soil type
11.
If Cu = 50 cm and effective rainfall is 15 cm, what is CIR (Consumptive Irrigation Requirement)?
a)
35 cm
b)
65 cm
c)
30 cm
d)
15 cm
12.
Statement I: Sodium Absorption Ratio (SAR) represents relative concentration of sodium ions in water.
Statement II: High SAR makes soil more permeable.
a)
Both statements are correct
b)
Only I is correct
c)
Only II is correct
d)
Both are incorrect
13.
Calculate duty for a canal discharging 3 cumecs and irrigating 2592 hectares over a base period of 120 days.
a)
2592 ha/cumec
b)
864 ha/cumec
c)
1728 ha/cumec
d)
3000 ha/cumec
14.
Which soil type is best for irrigation purposes?
a)
Clay soil
b)
Sandy soil
c)
Loamy soil
d)
Gravelly soil
15.
Which moisture condition in soil corresponds to the plant's inability to recover turgidity?
a)
Field capacity
b)
Temporary wilting point
c)
Hygroscopic point
d)
Ultimate wilting point
16.
Leaching is primarily used to reclaim which type of soil?
a)
Saline soil
b)
Sodic soil
c)
Alluvial soil
d)
Residual soil
17.
Which element is added to sodic soil to improve its quality?
a)
Potassium
b)
Gypsum (CaSO₄)
c)
Ammonia
d)
Sodium nitrate
18.
What is the significance of SAR (Sodium Absorption Ratio) in irrigation water?
a)
Represents total salinity of water
b)
Indicates acidity of soil
c)
Indicates sodium hazard
d)
Measures permeability
19.
Which crop has the lowest duty among rice, wheat, sugarcane, and cotton?
a)
Wheat
b)
Sugarcane
c)
Rice
d)
Cotton
20.
What is the typical root zone depth for wheat?
a)
80 cm
b)
90 cm
c)
100 cm
d)
110 cm
21.
Capillary water is important for plants because:
a)
It drains quickly
b)
It cannot be absorbed
c)
It is held by molecular attraction
d)
It is hygroscopic in nature
22.
Which soil classification includes particles smaller than 0.002 mm?
a)
Silt
b)
Clay
c)
Sand
d)
Gravel
23.
What is the pH nature of saline soil typically?
a)
Neutral
b)
Acidic
c)
Alkaline
d)
Strongly acidic
24.
Which soil classification includes soils formed by wind action?
a)
Alluvial
b)
Residual
c)
Aeolian
d)
Glacial
25.
Which crop is a Zaid crop?
a)
Pumpkin
b)
Rice
c)
Wheat
d)
Maize
26.
The term 'Saturation Capacity' refers to:
a)
Water held tightly by soil
b)
Water retained after drainage
c)
Total water filling all pore spaces
d)
Oven-dried soil moisture
27.
Which season is known for crops like maize, cotton, and soybean?
a)
Rabi
b)
Zaid
c)
Kharif
d)
Spring
28.
What is the optimum temperature for measuring EC (Electrical Conductivity) of irrigation water?
a)
20°C
b)
25°C
c)
30°C
d)
15°C
29.
Which of the following values of EC indicates medium salinity hazard in irrigation water?
a)
Below 250 μmhos/cm
b)
250 - 750 μmhos/cm
c)
750 - 2250 μmhos/cm
d)
Above 2250 μmhos/cm
30.
Which crop has a crop period of about 8 months and requires high water supply?
a)
Rice
b)
Sugarcane
c)
Wheat
d)
Cotton
100 %
