3 views
by
State the significance of following terms : i) Hydrology ii) Surface run-off iii) Evaporation iv) Precipitation

2 Answers

0 votes
by

i) Hydrology:- It may be defined as the science which deals with the depletion and replenishment of water resources. 

OR 

 To study hydrological cycle i.e. i.e. evaporation, precipitation and to estimate the yearly possible flow.

ii) Surface run-off:- It is that portion of precipitation (rain fall) which actually flow towards stream, lake, river or ocean. 

 Run-off = Total precipitation – Total evaporation of water 

iii) Evaporation:- It is the transfer of water from liquid state to vapour state.

iv) Precipitation:- Precipitation is nothing but rain fall. This includes all the water that falls from atmosphere (sky) to the earth surface. 

0 votes
by

(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 surface. It is helpful for managing the water resources. 

(ii) Surface runoff: It is that portion of precipitation (rain fall) which actually flow towards stream, lake, river or ocean. Run-off can be possible only when the rate of precipitation is more than rate of absorption of water in soil and also evaporation losses. Run-off = Total precipitation – total evaporation of water The collection of water in lake, river and ocean depends upon the surface run-off. 

(iii) Evaporation: It is the transfer of water from liquid state to vapor state. It includes all the rainfall that is returned to atmosphere from the land and water surfaces. 

(iv) Precipitation: Precipitation is water released from clouds in the form of rain, freezing rain, sleet, snow, or hail. It is the primary connection in the water cycle that provides for the delivery of atmospheric water to the Earth. It is mainly of two types: 

a) Liquid precipitation (Rainfall) 

b) Solid precipitation (Snow, Hail) 

Welcome to Electrical Engineering Questions and Answers site. You are free to ask any questions and answer any questions...

Categories

Most popular tags

power motor dc circuit voltage transformer current used system phase resistance factor load synchronous energy ac induction generator electric series frequency capacitor use speed between electrical meter line type mosfet control transmission difference magnetic plant high single instrument bjt source advantages function diode machine unit winding torque field parallel amplifier define supply thyristor motors arduino shunt maximum relay armature problem electricity time and value on transformers types coil diagram state flow ratio material three starting direction theorem method emf formula operating efficiency digital wave microprocessor test instruments loss measure operation connected low applications effect single-phase working losses different network law wattmeter inductance temperature measuring constant signal controlled breaker device full compare flux drive wire resistivity logic rc materials machines angle force switch disadvantages converter transistor gain protection scr core measurement number free bridge principle generators reactance circuits negative friction open pole conductor conservation steam iron loop resistors hysteresis short computer using lines secondary station battery rectifier inverter linear induced relays nuclear regulation design analog work rotor electronics gate forces diesel damping rlc connection factors capacitance capacitors minimum insulation basic moving running self systems air fault range direct main stability quality starter igbt eddy ideal ammeter rl 3-phase plants arc thermal error fuzzy biasing dielectric pressure balanced superposition errors rotation characteristics feedback impedance measured electronic inductive start alternator off back curve over solar average three-phase tariff locomotive peak bias zener commutator surge rating universal potentiometer density permanent mechanical copper transducer capacity electrons memory adc excitation transfer explain fuse pure harmonics application of inductor internal pmmc reaction welding resonance traction permeability breakers rms designed electromagnetic engineering si generation brushes switching capacitive shaded rate distribution methods delta star oscillator reluctance semiconductor simplification algebra 8085 boolean weston dynamometer insulating strength installation definition fuel heating earth units neutral rated conductors coefficient filter controller usually reverse
...