CECOS UNIVERSITY OF IT AND EMERGING SCIENCES

Department of Civil EngineeringQUIZ NO.01 NAME

……………………...SECTIONCLASS ID………………….

MULTIPLE choice questions, encircle the correct option.

I. Inacoldfronta) Cold air mass drives out a warm air massb) Warm air mass replaces there treating cold air massc) Cold air and warm air masses are drawn simultaneously towards a low pressure area

d) The cold and warm air masses are stationaryII. The activity of planning, developing, distributing and managing the optimum

use of water resources isa) Drainage basin managementb) Surface water hydrologyc) Water resource management d) Hydro informatics

III. Colorado pan is a type ofa) Floating evaporation panb) On ground evaporation panc) Sunken evaporation pand) None of these

IV. The ice coating formed on drizzle or rain drops as it comes in contact with the cold surfaces on the ground.

a) Sleet b) Snow flake c) Glazed) hail

V. The main cause of Convectional precipitation isa) Striking of moisture laden air with mountainsb) Flow of moisture laden air from a high to low pressure areac) Flow of moist air from lower to higher elevationd) rising of warmer, lighter air in colder, denser surroundings

VI. Arithmetic mean method cannot be applied if a) The normal annual precipitation of the index stations lies within 10%

of normal annual precipitation of interpolation station.b) Rainfall data is missing for the index station.c) The normal annual precipitation of the index stations is greater than

10% of normal annual precipitation of interpolation station.d) All of the above

VII. A rain gauge recorded 145 mm of precipitation. It was found later that the gauge was inclined at an angle of 60 degrees with the horizontal the actual precipitation is

a) 167.4mm

CECOS UNIVERSITY OF IT AND EMERGING SCIENCES

Department of Civil EngineeringQUIZ NO.01 NAME

……………………...SECTIONCLASS ID………………….

b) 290mmc) 125.6mmd) 72.5mm

VIII. The correction factor in case of consistency of precipitation data is obtained as

a) Sa / So

b) Sa*So

c) So /Sa

d) (Sa / So)* Po *where Sa = slope prior to break, So = slope after break & Po= observed precipitation

IX. If interception and depression storage is neglected thena) Ф Index = W indexb) Ф Index > W indexc) Ф Index < W indexd) Not relevant

X. Interception loss is.a) More towards the end of a stormb) More at the beginning of a stormc) Uniform throughout the stormd) High in the beginning of storm and gradually decreases.