Description : The factor responsible for purification of sewage in river is A. Hydrology B. Dissolved oxygen in water C. Temperature D. All the above
Last Answer : ANS: D
Description : State the significance of following terms : i) Hydrology ii) Surface run-off iii) Evaporation iv) Precipitation
Last Answer : (i) Hydrology: It may be defined as the science which deals with the depletion and replenishment of water resources. Hydrology deals with the occurrence and distribution of water over and under earth's ... types: a) Liquid precipitation (Rainfall) b) Solid precipitation (Snow, Hail)
Description : Hydrology helps in (A) Predicting maximum flows (B) Deciding the minimum reservoir capacity (C) Forecasting the availability of quantity of water at reservoir site (D) All the above
Last Answer : Answer: Option D
Description : Knowledge of hydrology is necessary for civil engineers for (A) Designing and construction of irrigation structures (B) Designing and construction of bridges and culverts (C) Flood control works (D) All the above
Description : Pick up the correct statement from the following: (A) The precipitation during its travel in atmosphere dissolves certain gases (B) Rain water which percolates through the ground, is free from ... water may dissolve minerals and salts present in the earth's layers (D) All the above
Last Answer : (D) All the above
Description : Hydrograph is a graphical representation of (A) Surface run off (B) Ground water flow (C) Rain fall (D) Discharge flowing in the river
Description : Who Discovered Hydrology Theory ?
Last Answer : Marcus vitruvius is considered to be the inventor of hydrology theory.
Description : Which one of the following is not allied to Geophysical Sciences? (1) Hydrology (2) Meteorology (3) Palaeontology (4) Seismology
Last Answer : (3) Palaeontology Explanation: Palaeontology is the study of fossils and the evolution of life on Earth.
Description : Study of freshwater habitat is a. Lithology b. Hydrology c. Pedology d. Limnology
Last Answer : b. Hydrology
Description : The study of earthquake is called: (1) Topology (2) Hydrology (3) Limnology (4) Seismology
Last Answer : Seismology
Description : Pick up the incorrect statement from the following: (A) The net amount of water which joins the surface streams in a catchment, is known as surface run-off (B) The amount of water which ... over the catchment, is termed as the yield of the drainage basin (D) None of these
Last Answer : (D) None of these
Description : Iron rusts quickly in – (1) Rain water (2) Sea water (3) Distilled water (4) River water
Last Answer : (2) Sea water Explanation: Water is the enabler of fast oxidation of iron. So freshwater will also cause rust. However, salt water (sea water) is a very good conductor (lots of dissociated ions ... which causes the current to be re-versed and in effect the zinc corrodes rapidly, protecting the iron.
Description : The purest form of water in nature is – (1) Rain water (2) Lake water (3) River water (4) Sea water
Last Answer : (1) Rain water Explanation: Rainwater is often considered the purest form of water available on the Earth. The evaporation of water by the sun allows the salts and other impurities to be left behind out ... when it reaches the surface of the Earth due to the high pollution of air with toxic gases.
Description : The purest form of water in nature is (1) Rain water (2) Lake water (3) River water (4) Sea water
Last Answer : Rain water
Description : Iron rusts quickly in (1) Rain water (2) Sea water (3) Distilled water (4) River water
Last Answer : Sea water
Description : Which of the following is the purest form of water out of the following? (A) Underground water (B) Rain water (C) Well water (D) Lake water
Last Answer : (B) Rain water
Description : Surface water is obtained from (A) Well (B) Springs (C) Artesian well (D) Rain
Last Answer : (D) Rain
Description : The lower edge of the pitched roof, from where the rain water of the roof surface drops down, is known as (A) Hip (B) Gable (C) Ridge (D) Eaves
Description : The food chain refers to the transfer of energy from : (1) the interior of the earth to the surface (2) lower to higher latitudes (3) one organism to another (4) organisms of the land to those of the sea by means of river
Last Answer : (3) one organism to another Explanation: A food chain is a linear sequence of links in a food web starting from atrophic species that eats no other species in the web and ends at a ... linear monophagous pathways. A common metric used to quantify food web trophic structure is food chain length.
Last Answer : one organism to another
Description : The surface run off is due to (A) Initial rain (B) Residual rain (C) Rain in the net supply interval (D) All the above
Last Answer : Answer: Option C
Description : The infiltration capacity during rain storm, is considerably reduced due to (A) Surface detention (B) Soil moisture (C) Compaction due to rain (D) All the above
Description : Rain drops are spherical because of (A) Viscosity (B) Air resistance (C) Surface tension forces (D) Atmospheric pressure
Description : An aquiclude is (A) A non artesian aquifer (B) An artesian aquifer (C) A confined bed of impervious material between aquifers (D) A large water body underground
Last Answer : (C) A confined bed of impervious material between aquifers
Description : Underground water is obtained from (A) Rains (B) Rivers (C) Lakes (D) Springs
Last Answer : (D) Springs
Description : The level of underground water is called (A) Water level (B) Water table (C) Negative level (D) Invert level
Last Answer : (B) Water table
Description : Pick up the correct statement from the following: (A) The volume of underground water extracted by gravity drainage from a saturated soil, is known as yield (B) The ratio of volume ... ) The sum of specific yield and specific retention, is equal to porosity (D) All the above
Description : For determining the velocity of flow of underground water, the most commonly used nonempirical formula is (A) Darcy's formula (B) Slichter's formula (C) Hazen's formula (D) Lacy's formula
Last Answer : (A) Darcy's formula
Description : Pick up the incorrect statement from the following. The underground sources of water, is from (A) Wells (B) Springs (C) Infiltration wells (D) Storage reservoirs
Last Answer : (D) Storage reservoirs
Description : A pressure conduit laid underground, may not be subjected to (A) Internal pressure of water (B) Pressure due to external load (C) Longitudinal temperature stress (D) Longitudinal stresses due to unbalanced pressure to bends
Last Answer : (C) Longitudinal temperature stress
Description : Pick up the correct statement from the following: (A) The operation of removing material from the sea or river bed is known as (B) Dredging (C) Digging (D) None of these
Last Answer : (A) The operation of removing material from the sea or river bed is known as
Description : Pick up the correct statement from the following: (A) The direction of the littoral drift depends upon the direction of the wave with respect to the coastline (B) The direction of a river opening to the sea ... avoid a build up of sand on one side and erosion on the other (D) all of the above
Last Answer : (D) all of the above
Description : Sand generally contains salt if it is obtained from: (A) Nala beds (B) River beds (C) Sea beds (D) None of these
Description : Good quality sand is never obtained from (A) River (B) Lake (C) Sea (D) Gravel powder
Description : Steel pipe are (A) Suitable for withstanding high internal pressure (B) Connected by riveted or welded joints (C) Generally laid underground and no expansion joint is required (D) Likely to last 100 years under ordinary conditions
Last Answer : (D) Likely to last 100 years under ordinary conditions
Description : Which of the following is an example of laminar flow? (A) Underground flow (B) Flow past tiny bodies (C) Flow of oil in measuring instruments (D) All of these
Description : Water gets evaporated from water surfaces and land surfaces, get converted into water drops at lower temperatures, flows over ground surface and finally meets its source, i.e. lake, sea, etc. This ... Hydrological cycle (B) Water cycle (C) Evaporation and precipitation cycle (D) All the above
Description : The zero atmospheric pressure is at (A) Sea level (B) Water table (C) Phreatic surface (D) Both (B) and (C) of the above
Last Answer : (D) Both (B) and (C) of the above
Description : Littoral drift (A) Is the raised line of sand, parallel to the sea coast (B) Is the slow movement of surface water at sea caused by the wind (C) Is a current parallel to the shore, caused due to tangential component of the wind (D) Is a current perpendicular to the shore line caused due to wind
Last Answer : (C) Is a current parallel to the shore, caused due to tangential component of the wind
Description : Pick up the correct statement from the following: (A) For nautical purposes, low water level is generally referred to by the navigators (B) The depth of the bed of the sea from the surface of water is ... (C) The contour lines on the bed of a water body are called fathoms (D) All the above
Description : Pick up the correct statement from the following: (A) The regular periodic rise and fall of the surface of the sea, is called tide (B) The average difference in water level between high tide and low tide ... of water caused by the action of tide, is called a tidal current (D) all of the above
Description : Which one of the following statements is correct ? a) For water at 100o Celsius at sea level, the vapour pressure is equal to atmospheric pressure b) Surface energy (or tension) is caused by ... it both in static and in dynamic conditions d) Air is 50,000 times more compressible than water
Last Answer : c) Viscosity of a fluid is the property exhibited by it both in static and in dynamic conditions
Description : The surface of zero elevation around the earth, which is slightly irregular and curved, is known as (A) Mean sea level (B) Geoid surface (C) Level surface (D) Horizontal surface
Last Answer : (B) Geoid surface
Description : Sea water is saltier than rain water because
Last Answer : Rivers wash away salts from the earth and pour them into the sea
Description : Sea water is saltier than rain water because – (1) rivers wash away salts from earth and pour them into the sea (2) sea beds have salt producing mines (3) sea animals are salt producing (4) the air around the sea is saltish
Last Answer : (1) rivers wash away salts from earth and pour them into the Explanation: Sea water is saltier than rain water because rivers wash away salts from earth and pour them into the sea.
Description : Frontal Rain is caused by – (1) Convection current (2) Winds from sea (3) Cyclonic activity (4) Condensation of water evaporated from mountains
Last Answer : (3) Cyclonic activity Explanation: Frontal rainfall is a type of precipitation which occurs when a warm air mass and a cold air mass meet. Extra-tropical cyclones form as waves along ... is the development or strengthening of cyclonic circulation in the atmosphere (a low pressure area).
Description : Sea water is saltier than rain water because – (1) Sea animals are salt producing (2) The air around the sea is saltish (3) Rivers wash away salts from earth and pour them into the sea (4) Sea beds have salt producing mines
Last Answer : (3) Rivers wash away salts from earth and pour them into the sea Explanation: Seawater is salty because rainwater dissolves the salt minerals found in soil and rocks as it travels through rivers ... sea The rain that falls on the land contains some dissolved carbon dioxide from the surrounding air.
Description : Bog is a wetland that receives water from: (A) nearby water bodies (B) melting (C) rain fall only (D) sea only
Last Answer : (C) rain fall only
Description : Sea water is saltier than rain water because (1) Sea animals are salt producing (2) The air around the sea is saltish (3) Rivers wash away salts from earth and pour them into the sea (4) Sea beds have salt producing mines
Last Answer : Rivers wash away salts from earth and pour them into the sea
Description : Sea water is saltier than rain water because (1) rivers wash away salts from earth and pour them into the sea (2) sea beds have salt producing mines (3) sea animals are salt producing (4) the air around the sea is saltish
Last Answer : rivers wash away salts from earth and pour them into the sea