Detailed plotting is generally done by

Detention period of a settling tank is

Detention time for plain sedimentation tank usually ranges from

Determination of water content of a soil sample suspected to contain gypsum is made by drying the sample for longer period at a temperature not more than

Determining the difference in elevation between two points on the surface of the earth, is known as

Deviation of the actual road gradient from the proposed contour gradient uphill side, involves

Deviation of the alignment of a trace cut may be permitted in areas involving

Dextrin is

DGPS is based on the concept that bias errors in the position of locations in a given local area, are same if their distances are within

Diagonal tension in a beam

Diameter of a bolt hole is usually taken as

Diameter of a rivet hole is made larger than the diameter of the rivet by

Diaphragm of a surveying telescope is held inside

Di-calcium silicate (C2S)

Different grades are joined together by a

Differential manometer is used to measure

Dilution method of disposing of sewage, is not preferred to

Dimensions of a beam need be changed if the shear stress is more than

Dimensions of a plate girder are:

Diopter is the power of a lens having a focal length of

Direct load carrying capacity of a brick masonry wall standing freely as against when it supports RC
slab will be

Direct measurement of permeability of the specimen at any stage of loading can be made

Direct method of contouring is

Disappearance of pink colour of water of a well due of KMnO4 indicates that water contains

Discrete or granular particles change their

Disinfection efficiency is

Disinfection of drinking water is done to remove

Disinfection of drinking water, is done to remove

Disinfection of water results in

Disinfection of water with ozone is not good because

Dispersed type of soil structure is an arrangement comprising particles having

Disposal of extra excavated earth of canals, is utilised to provide a spoil bank on

Disposal to sewage in large cities, is done in

Dissolved carbon dioxide, can be removed from the supply main by

Dissolved oxygen in streams is

Distance between inner faces of the flanges, is kept

Distance between the inner rail and check rail provided on sharp curve, is

Distemper is

Distribution mains of any water supply, is normally designed for its average daily requirement

Distribution of shear intensity over a rectangular section of a beam, follows:

Distribution of wash water is provided in

Distribution reinforcement in a simply supported slab, is provided to distribute

Diurnal variation of magnetic declination is

Dog spikes are used for fixing rail to the

Dolomite is a lime stone which contains carbonate of magnesia upto

Dorry’s testing machine is used for

Double filtration is used

Dried sewage after treatment is used as

Drift’ is the material picked up, mixed, disintegrated, transported and redeposited by

Driving vehicles on wet surfaced roads, is dangerous because it may

Drop manholes are the manholes

Drop manholes at the junctions of sewer lines, are provided if

Dry rot

Dry water flow in a combined sewer, is

Dry weather flow is:

Duco is one of the patent forms of

Duco paints are

Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively. If other things remain constant, the coefficient of permeability

Due to attack of dry rot, the timber

Due to battering action of wheels over the end of the rails, the rails get bent down and are deflected at ends. These rails are called

Due to change in price level, a revised estimate is prepared if the sanctioned estimate exceeds

Due to circumferential action of the spiral in a spirally reinforced column

Due to perturbation of the orbit, satellite orbit parameters are frequently updated on measurements carried out by its

Due to scan geometry of a satellite sensor:

Due to shrinkage stresses, a simply supported beam having reinforcement only at bottom tends to

Due to the impact of water wave on a sea shore structure

Dumpy level is most suitable when

Durability of building stone is affected by its

During erection, the pile of length is supported by a crane at a distance of

During last phase of the reconnaissance, details of the grade line is recorded on 2 metre poles to indicate

During levelling if back sight is more than foresight

During percussion drilling

During preliminary treatment of a sewage

During pudding

During purification process of sewage the gas given off, is

During secular variation of magnetic meridian at different places

During seepage through a soil, direction of seepage is always

During smelting process, the combination of fuel in the furnace

During the construction period, price variation clause in contracts caters to

During the first stage of triaxial test when the cell pressure is increased from 0.10 N/mmz to 0.26 N/mmz, the pore water pressure increases from 0.07 N/mmz to 0.15 N/mmz. Skempton’s pore pressure parameter ‘B’ is

During the opening of a valve in a pipe line, the flow is

During treatment of water, sedimentation is done

Dutch bond is a modification of

Dynamic viscosity of most of the gases with rise in temperature

Dynamic viscosity of most of the liquids with rise in temperature

Each block of a two-block concrete sleeper is

Earliest finish of an activity is always

Early attainment of strength in rapid hardening cement is mainly due to

Earth observations from a satellite platform provide:

Economic height of a dam is the height corresponding to which

Economic saving of time results by crashing

Economical depth of a plate girder corresponds to

Effect of a force on a body depends upon its

Effective length of a column effectively held in position and restrained in direction at both ends, is

Effective length of a column effectively held in position and restrained in direction at one end but neither held in position nor restrained in direction at the other end, is

Effective length of a column effectively held in position at both ends and restrained in direction at one end, is

Effective length of a runway is the distance between

Effective precipitation for a crop may be defined as

Effective sectional area of a compression member is:

Effective stress is