MCQs of Conventional Generation, Load Curves and Tariffs (Power System - I - 3140914)

Showing 191 to 200 out of 425 Questions

191.

Pulverized coal is

(a)	Non smoking coal
(b)	Coal free from ash
(c)	Coal broken in fine particles
(d)	Coal which burns for long time

192.

Equipment used for pulverizing the coal is the

193.

Pulverized fuel is used for

(a)	Better burning
(b)	Increased calorific value of coal
(c)	Less radiation loss
(d)	Medium size units

194.

The advantage of using pulverized fuel include

(a)	Higher boiler efficiency, low air requirement and low fan power
(b)	Easy and complete combustion
(c)	Fast response to load changes and low banking losses
(d)	All of above

195.

The drawbacks of using pulverized fuel include

(a)	Additional investment in pulverizing plant and stack fly ash removal equipment
(b)	Extra power requirements for the pulverizing plant
(c)	Reduced power plant efficiency
(d)	Both (a) and (b)

196.

Ash is the main waste product of steam power plants with low grade coal (may be in tonnes per day). This ash

(a)	Can be used in building construction
(b)	Can be used in brick making near the plant side
(c)	Can be dumped in disused mines, river or sea or in an area excavated in the waste land
(d)	All of above

197.

Flyash generally results from

198.

Dust can be separated from gas by

(a)	Impingement upon small baffles
(b)	Sudden velocity decrease owing to enlargement
(c)	Abrupt changes of flow direction
(d)	Any of above

199.

Which of the following equipment is installed in steam power plants to reduce air pollution?

(a)	Super heater
(b)	Air filter
(c)	Air electrostatic precipitator
(d)	Stock

200.

Electrostatic precipitator is installed between

(a)	Induced fan and chimney
(b)	Air preheater and induced fan
(c)	Economizer and air preheater
(d)	Boiler furnace and economizer

Showing 191 to 200 out of 425 Questions