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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

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Mechanical Engineering MCQs prepared for job test and interview preparation, especially for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover key topics such as Machine Design, Theory of Machines, Hydraulic Machines, and other important mechanical engineering concepts.

All Topics  1919

The diameters of fire tubes and superheaer tubes in locomotive boiler are_________________?
A 47.5 mm, 130 mm
B 32.5 mm, 180 mm
C 65.5 mm, 210 mm
D 24.5 mm, 65 mm
Correct Answer: 47.5 mm, 130 mm
Pick up the correct statement as regards Cornish boiler and Lancashire boiler _______________?
A cornish is fire tube and lancashire is water tube
B cornish is water tube and lancashire is fire tube
C cornish has two fire tubes and lancashire has one
D lancashire has two fire tubes and cornish has one
Correct Answer: lancashire has two fire tubes and cornish has one
Hard coke is produced by carborisation of coal at_______________?
A atmospheric temperature
B 500-600°C
C 70O-850°C
D 95O-1100°C
Correct Answer: 95O-1100°C
Hard coke is used in________________?
A cement industry
B thermal power plant
C blast furnace
D domestic use
Correct Answer: blast furnace
A boiler in India should conform to safety regulations of__________________?
A DIN
B BS
C ASTM
D IBR
Correct Answer: IBR
Which of the following boilers is best suited to meet fluctuating demands___________________?
A babcock and wilcox
B locomotive
C lancashire
D cochran
Correct Answer: locomotive
The shell diameter and length of locomotive boiler are_______________?
A 1.5 m, 4 m
B 1.5 m, 6 m
C 1 m, 4 m
D 2 m, 4 m
Correct Answer: 1.5 m, 4 m
In locomotive boiler, maximum steam pressure is limited to_______________?
A 1 kg/cm2
B 5 kg/cm2
C 10 kg/cm2
D 18 kg/cm2
Correct Answer: 18 kg/cm2
In natural circulation type boiler _______________?
A heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum
B water is supplied in durm and through down-comers located in atmospheric conditon it passes to the water wall and rises to drum in the form of mixture of water and steam
C feed pump is employed to supplement natural circulation in water wall type furnace
D water is converted into steam in one . pass without any recirculation
Correct Answer: heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum
Which of the following is steam dbal?
A non-coking bituminous coal
B brown coal
C pulverised coal
D coking bituminous coal
Correct Answer: non-coking bituminous coal
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