Power Plant : Practice Questions and Answers

Coal is an exhaustible source of energy.

Biomass corresponds to the exhaustible wastes, so this isn’t a renewable source of energy.

Amongst all the resources mentioned, Coal is a non-renewable resource.

All the mentioned impacts are the negative effects on the soil & water due to conventional, mechanized farming practices.

Potassium, phosphorus, and nitrogen are the three primary soil macronutrients.

Slash & Burn isn’t an important characteristic of the Green Revolution.

Groundwater mining in coastal areas can result into an increase in the salinity of groundwater.

The stage in which the biological processes are used to purify water in a wastewater treatment plants is called Secondary Sewage Treatment.

All the mentioned issues come under water use planning.

All of the mentioned options are major sources of groundwater contamination.

With the increased presence of organic matter in water, the oxygen demand increases.

The presence of high coli-form counts in water indicate contamination by human wastes.

Point sources of pollution are the examples of Municipal & industrial discharge pipes.

External loses are those which occur outside the turbine casing.

Number of parallel exhausts required for a given steam flow rate of x is, x/63.5.

For straight blades, the minimum blade height is 20% of the mean blade ring diameter.

Carry-over efficiency is defined as the loss in efficiency from one stage to another.

The pressure drop in reaction turbines occurs in both, the nozzle & in fixed blades.

The guide vanes remain stationary in velocity compounding to ensure better operating efficiency.

The another name for Velocity compounding is Curtis Staging.