Steam Boilers - Interview Questions | Exam2Win

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186. . Hard coke is used in

A. cement industry

B. thermal power plant

C. blast furnace

D. domestic use

E. locomotives

Explanation:

187. The difference between Cornish boiler and Lancashire boiler is that

A. former is fire tube type and latter is water tube type boiler

B. former is water tube type and latter is fire tube type

C. former contains one fire tube and latter contains two fire tubes

D. none/of the above.

E. opt 5

Explanation:

188. Boiler H.P. is defined as the

A. steam evaporation rate per kg of fuel fired

B. work done in evaporating 1 kg of steam per hour from and at 100�C into dry saturated steam

C. the evaporation of 15.65 kg of water per hour from and at 100�C into dry saturated steam

D. work done by 1 kg of steam at saturation condition

E. heat consumed in evaporating 1 kg water at 0�C to steam at 100�C and 1.033 kg/cm pressure.

Explanation:

189. Size of boiler tubes is specified by

A. mean diameter and thickness

B. inside diameter and thickness

C. outside diameter and thickness

D. outside diameter and inside diameter

E. outside diameter alone.

Explanation:

190. The heat loss in a boiler takes place in the form of

A. heat carried away by flue gases

B. heat carried away by ash

C. moisture present in fuel and steam formed by combustion of hydrogen in fuel

D. radiation

E. all of the above.

Explanation: