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211.

In which power plant chimney is not needed?

A.	Gas turbine power plant	B.	Steam power plant
C.	Hydro-electric power plant	D.	All of the above

212.

The problem of ash handling does not exist in case of ------ fired boilers.

A.	Lignite	B.	Pulverised fuel
C.	Peat	D.	Gas

213.

An Orsat apparatus gives

A.	volumetric analysis	B.	gravimetric analysis
C.	approximate analysis	D.	only presence of constituents

214.

A four stroke petrol engine is designed to develop 35 BHP at 200 RPM. It has an indicated mean effective pressure of 20 kg/cm2, a stroke of 35 cm and a bore diameter of 20 cm. Using this data mechanical efficiency of the engine at the running condition given would be closest to

A.	50 percent	B.	60 percent
C.	70 percent	D.	80 percent

215.

In case of oil fired boiler, the excess air is usually

A.	1 to 2 percent	B.	5 to 12 percent
C.	20 to 25 percent	D.	75 to 125 percent

216.

While top surface of an overfeed stoker consists of

A.	coal dust, ash	B.	ash, coal dust
C.	green coal, incandescent coke	D.	incandescent coke, green coal

217.

Chain gate stokers cannot be used for

A.	coal lumps	B.	low ash content coals
C.	high ash content coals	D.	None of the above

218.

Most of the thermal power plants in India are using

A.	bagasse as fuel	B.	lignite as fuel
C.	pulverized fuel	D.	peat as fuel

219.

The minimum clearance of low and medium transmission lines from ground across streets is

A.	2 metres	B.	4 metres
C.	6 metres	D.	8 metres

220.

When a 66 kV transmission line passes over a residential building, the minimum vertical clearance from the roof of the building must be

A.	4 metres	B.	7.5 metres
C.	10 metres	D.	15 metres