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Mechanical Engineering MCQs

488 MCQs
311

Pick up the correct statement as regards Cornish boiler and Lancashire boiler _______________?

Acornish is fire tube and lancashire is water tube
Bcornish is water tube and lancashire is fire tube
Ccornish has two fire tubes and lancashire has one
Dlancashire has two fire tubes and cornish has one E. both have two fire tubes
312

Hard coke is produced by carborisation of coal at_______________?

Aatmospheric temperature
B500-600°C
C70O-850°C
D95O-1100°C E. 120O-1500°C
313

Hard coke is used in________________?

Acement industry
Bthermal power plant
Cblast furnace
Ddomestic use E. locomotives
314

Locomotive boiler is of the following type__________________?

Amultitubular
Bhorizontal
Cinternally fired
Dmobile E. all of the above
315

Which of the following varieties of coals is mostly used in steam boilers____________________?

Anon-coking bituminous coal
Bbrown coal
Cpeat
Dcoking bituminous coal E. none of the above
316

A boiler in India should conform to safety regulations of__________________?

ADIN
BBS
CASTM
DIBR E. GOST
317

Which of the following boilers is best suited to meet fluctuating demands___________________?

Ababcock and wilcox
Blocomotive
Clancashire
Dcochran E. comish
318

The basic purpose of drum in boiler is to_____________________?

Aserve as storage of steam
Bserve as storage of feed water for water wall
Cremove salts from water
Dseparate steam from water E. control level
319

The function of injector used in small steam plants is to________________?

Acreate vacuum in furnace
Bcreate vacuum at turbine exhaust
Cpump feed water
Ddose chemicals in feed water E. control steam temperature by injecting water
320

The diameter of tubes for natural circulation boiler as compared to controlled circulation boilers is___________________?

Amore
Bless
Csame
Dcould be more or less depending on other factors E. none of the above
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