Mechanical Engineering MCQs

Page No. 15

The diameters of fire tubes and superheaer tubes in locomotive boiler are_________________?


a47.5 mm, 130 mm

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b32.5 mm, 180 mm

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c65.5 mm, 210 mm

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d24.5 mm, 65 mm

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View Answer 47.5 mm, 130 mm

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


acornish is fire tube and lancashire is water tube

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bcornish is water tube and lancashire is fire tube

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ccornish has two fire tubes and lancashire has one

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dlancashire has two fire tubes and cornish has one

✓



Hard coke is produced by carborisation of coal at_______________?


aatmospheric temperature

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b500-600°C

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c70O-850°C

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d95O-1100°C

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View Answer 95O-1100°C

Hard coke is used in________________?


acement industry

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bthermal power plant

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cblast furnace

✓


ddomestic use

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View Answer blast furnace

Locomotive boiler is of the following type__________________?


amultitubular

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bhorizontal

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cinternally fired

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dall of the above

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View Answer all of the above

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


anon-coking bituminous coal

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bbrown coal

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cpeat

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dnone of the above

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View Answer none of the above

A boiler in India should conform to safety regulations of__________________?


aDIN

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bBS

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cASTM

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dIBR

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View Answer IBR

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


ababcock and wilcox

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blocomotive

✓


clancashire

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dcochran

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View Answer locomotive

The shell diameter and length of locomotive boiler are_______________?


a1.5 m, 4 m

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b1.5 m, 6 m

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c1 m, 4 m

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d2 m, 4 m

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View Answer 1.5 m, 4 m

In locomotive boiler, maximum steam pressure is limited to_______________?


a1 kg/cm2

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b5 kg/cm2

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c10 kg/cm2

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d18 kg/cm2

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View Answer 18 kg/cm2

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