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Test: Introduction to Engineering Hydrology - Civil Engineering (CE) MCQ


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9 Questions MCQ Test GATE Civil Engineering (CE) 2025 Mock Test Series - Test: Introduction to Engineering Hydrology

Test: Introduction to Engineering Hydrology for Civil Engineering (CE) 2024 is part of GATE Civil Engineering (CE) 2025 Mock Test Series preparation. The Test: Introduction to Engineering Hydrology questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Introduction to Engineering Hydrology MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Introduction to Engineering Hydrology below.
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Test: Introduction to Engineering Hydrology - Question 1

The % of earth covered by oceans is about

Test: Introduction to Engineering Hydrology - Question 2

The percentage of total quantity of water in the world that is saline is about

Test: Introduction to Engineering Hydrology - Question 3

The percentage of total quantity of fresh water in the world available in the liquid form is about.

Detailed Solution for Test: Introduction to Engineering Hydrology - Question 3

The percentage of total quantity of fresh water in the world available in the liquid form is about 3%.

The vast majority of the Earth's water is in the form of oceans, which are saltwater and not suitable for drinking or irrigation. Freshwater, which is water that is free of salt and other minerals and is suitable for drinking and irrigation, makes up a very small percentage of the Earth's total water supply. According to the United Nations, about 2.5% of the Earth's water is freshwater, and of that, only about 0.3% is available as surface water in lakes, rivers, and streams, while about 2.2% is found in groundwater reserves. In other words, about 3% of the total quantity of water on Earth is available in the liquid form as freshwater.

Test: Introduction to Engineering Hydrology - Question 4

A catchment has an area of 150 ha and a runoff/ rainfall ratio of 0.40. If due to a 10 cm rainfall over the catchment a stream flow at the catchment outlet lasts for 10 hours, the average stream flow in the period is

Detailed Solution for Test: Introduction to Engineering Hydrology - Question 4

The average stream flow

Test: Introduction to Engineering Hydrology - Question 5

A catchment of area 120 km2 has three distinct zones as below

The annual runoff from the catchment, in cms, is

Detailed Solution for Test: Introduction to Engineering Hydrology - Question 5

Annual  run off

Test: Introduction to Engineering Hydrology - Question 6

If the average annual rainfall and evaporation over land masses and oceans of the earth are considered it would be found that

Detailed Solution for Test: Introduction to Engineering Hydrology - Question 6

Whenever precipitation occurs, a part of rainfall is infiltrated into the soil and other part is surface runoff meeting in the rivers. 
Moreover, not all the water evaporated from the sea is transported towards land and most of it fall back as precipitation in oceans itself.
Therefore, it is found that about 9% more, water evaporates from the ocean than what falls back them as precipitation.

Test: Introduction to Engineering Hydrology - Question 7

In the hydrological cycle the average residence time of water in the global

Test: Introduction to Engineering Hydrology - Question 8

What is ‘Hydrological Cycle’?

Detailed Solution for Test: Introduction to Engineering Hydrology - Question 8

Most of the earth’s water sources such as rivers, fakes, oceans, ground water, etc, get their supplies 
from rain, while the rain water in itself is derived from the evaporation from these sources. 
Water is intact lost to the atmosphere as vapour from the earth, which is then precipitated back in the form of rain, snow, hail, dew, sleet or frost, etc. This evaporation and precipitation continues forever and thereby, a balance is maintained between the two. This process is known as hydrologic cycle.

Test: Introduction to Engineering Hydrology - Question 9

The hydrologic cycle states that

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