Soil and water conservation engineering MCQs
Soil and water conservation engineering MCQs
Answer these 60+ Soil and water conservation engineering MCQs and assess your grip on the subject of Soil and water conservation engineering.
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1: What type of engineering is soil and water conservation?
A. Solution of soil and water management problems
B. Engineering of dams
C. Improvement of agricultural productivity
D. Engineering research on soil and water conservation
E. Engineering of wastewater treatment plants
2: What are the phases involved in soil and water conservation?
A. Mulch, cover crops, drip irrigation, compost, and tree planting
B. Water conservation, soil fertility, and erosion control
C. Erosion control, drainage, irrigation, flood control, and land clearing
D. Mulch, cover crops, drip irrigation, composting, and watershed restoration
E. Irrigation, soil fertility, and land clearing
3: What is the fifth phase of soil and water conservation?
A. Irrigation scheduling
B. Drip irrigation
C. Land clearing
D. Water harvesting
E. Fertilizer application
4: In what kind of condition would soil erosion occur?
A. Virgin
B. Disturbed
C. Rich
D. Clay
E. Sandy
5: The removal of excess water from wetlands is known as what?
A. Drainage
B. Irrigation
C. Flooding
D. Drying
6: What is the application of water to land for optimum crop growth?
A. Dehydration
B. Irrigation
C. Fertilizer
D. Pesticide application
E. Fertilization
7: What type of control prevents overflow on low land?
A. Waste Control
B. Sewerage control
C. Drainage control
D. Flood control
8: What is included in the land clearing?
A. Removal of trees, stumps, brush, or stones
B. Trees, rocks, and soil
C. Soil, rocks, and trees
D. Soil, rocks, and water
9: How much soil is washed out of the U.S. each year?
A. 3 billion tons
B. 10 billion tons
C. 1.5 billion tons
D. 500 million tons
10: What is the term for the passage of water into the soil surface?
A. Subsurface drainage
B. Erosion
C. Infiltration
D. Percolation
E. Sublimation
11: What is the process by which moisture is returned to the air?
A. Precipitation
B. Humidity
C. Condensation
D. Evaporation
12: What is the process by which water as water vapor is transferred to the atmosphere by plants?
A. Precipitation
B. Humidity
C. Condensation
D. Transpiration
13: What happens if infiltration is increased?
A. Soil cannot absorb water as well
B. Less water passes over the soil surface
C. Plants die
D. Plants are less capable of taking up water
E. More water flows into drains and rivers
14: What can be done to soil to change its infiltration capacity?
A. Damming up the drainage system
B. Planting different types of trees
C. Breaking up the soil with a backhoe
D. Adding chemical materials to it
E. Plowing it often
15: What fraction of precipitation flows towards lakes, oceans, and streams?
A. Runoff
B. Precipitation
C. Evaporation
16: When will runoff occur?
A. After 24 hours of steady rain
B. Only when the rate of precipitation exceeds the rate at which water may infiltrate into the soil
C. After the first heavy rain
D. Immediately after the first fall of rain
E. After the second heavy rain
17: What is the term used to describe the science dealing with the mechanical behavior of the soil mass?
A. Soil engineering
B. Soil physics
C. Soil mechanics
18: The essential components of soil are?
A. Solid, air, and liquid
B. Solid, water, and liquid
C. Solid, gas, and plasma
D. Minerals, organic matter, water, and air
19: What percentage of soil is made up of minerals?
A. 65%
B. 55%
C. 45%
D. 75%
E. 25%
20: What percentage of soil is made up of organic matter?
A. 15%
B. 25%
C. 10%
D. 50%
E. 5%
21: What percentage of soil is made up of water?
A. 15%
B. 25%
C. 30%
D. 50%
22: What percentage of soil is made up of Air?
A. 15%
B. 20%
C. 25%
D. 50%
23: What is the minimum moisture content at which the soil-water mixture changes from a solid to a semisolid?
A. 0% moisture content
B. Lower plastic limit
C. Lower water limit
D. Above the plastic limit
E. 10% moisture content
24: What is the difference in moisture content between the upper and lower plastic limits?
A. The moisture content
B. The percent of moisture
C. The plasticity index
D. The % shrinkage
E. The radius of gyration
25: How many categories are included in soil moisture classification?
A. Two
B. Five
C. Three
D. Four
26: What is the name of the moisture that is held tightly to the soil particles?
A. Hygroscopic moisture
B. Dew
C. Humidity
D. Ice
E. Wetting agent
27: What is the main function of capillary moisture?
A. Conversion of liquid water into ice
B. Transfer of water vapor from the atmosphere to plants
C. Formation of vapor bubbles and droplets from a liquid surface
D. Transport of water and dissolved substances within plant cells
E. Water is held by forces of surface tension as continuous films around particles and in the capillary spaces
28: What is gravitational moisture?
A. Moisture that forms when water condenses
B. Moisture in the atmosphere
C. Water that accumulates on Earth's surface
D. Water that moves freely in response to gravity
E. Air that becomes saturated with moisture
29: What is a tensiometer used for?
A. Determination of soil elasticity
B. Determination of soil texture
C. Determination of soil moisture content
D. Determination of plant water status
30: What are the two major types of erosion?
A. Chemical erosion and accelerated erosion
B. Wear and tear erosion and accelerated erosion
C. Geological erosion and accelerated erosion
31: What is another term for geological erosion?
A. Natural or normal erosion
B. Human-caused erosion
C. Chemical erosion
D. Erosion by water
E. Physical erosion
32: What type of erosion is soil-forming?
A. Mechanical
B. Physical
C. Geological
D. Chemical
33: What is the deterioration and loss of soil as a result of man's activities known as?
A. Greening of the Earth
B. Soil depletion
C. Acid rain
D. Surface water Pollution
E. Accelerated erosion
34: What is the removal of soil from the land's surface by running water?
A. Soil formation
B. Sheet erosion
C. Plant growth
D. Soil erosion
E. Water erosion
35: What is subdivided into raindrop, sheet, rill, gully, and stream channel erosion?
A. Glaciation
B. Water erosion
C. Soil erosion
D. Air erosion
36: What is the process of soil splash resulting from the impact of water drops directly on soil particles?
A. Soil infiltration
B. Soil splash
C. Soil evaporation
D. Tillage erosion
E. Raindrop erosion
37: What is the term for the removal of soil in thin layers from sloping land?
A. Sheet erosion
B. Soil erosion
C. Erosion by water
D. Slope erosion
E. Erosion by wind
38: What type of erosion is the removal of soil by water from small but well-defined channels?
A. Mass wasting
B. Rill erosion
C. Flood erosion
D. Storm erosion
E. Slope erosion
39: Gully erosion channels are larger than what?
A. Streams
B. Rills
C. Canals
D. Creeks
E. Rivers
40: The removal of soil from stream banks or movement of soil in the channel is called what?
A. Floodplain erosion
B. Sedimentation
C. Flooding
D. Watershed erosion
E. Channel erosion
41: What damages crops, fences, buildings, and highways?
A. Wind Erosion
B. Weather
C. Heavy rains
D. Pollution
42: What is a method of erosion control accomplished by constructing broad channels across the slope of rolling land?
A. Terracing
B. Sewerage
C. Grazing
D. Planting
E. Dam
43: Gully control is maintaining what along drainage lines?
A. Clay
B. Remnant vegetation
C. Rocks
D. Litter
E. Gravel
44: Conservation and protection of land also depend upon the control of what?
A. Animals
B. Land use
C. Pollution
D. Wildlife
E. Excess waters
45: What is the total area covered by the small area flood?
A. 1000 square miles
B. 1400 square miles
C. 10 square miles
46: What may be defined as an overflow or inundation from a river or other body of water?
A. A drought
B. A flood
C. A rise in water level
D. Torrential downpour
E. A rainstorm
47: What is applied to the land that is effective in reducing flood runoff?
A. Mulch
B. Vegetation
C. Watershed treatment
D. Infrastructure
48: What is the oldest method of removing excess water from the land?
A. Drip irrigation
B. Canal system
C. Irrigation with subterranean water
D. Underground drainage
E. Surface drainage
49: What is the process that includes digging to an established grade, laying the tile, and backfilling?
A. Soil infiltration
B. Installation
C. Soil evaporation
D. Tillage erosion
50: What type of pump can develop high heads but has a small capacity?
A. Single phase pumps
B. Reciprocating pumps
C. Positive displacement pumps
D. Centrifugal pumps
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