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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

Mild steel belongs to the following category___________________?
A low carbon steel
B medium carbon steel
C high carbon steel
D alloy steel
Correct Answer: low carbon steel
Malleability of a material can be defined as ______________________?
A ability to undergo large permanent deformations in compression
B ability to recover its original form
C ability to undergo large permanent deformations in tension
D all of the above
Correct Answer: ability to undergo large permanent deformations in compression
Perminvar alloy having constant permeability is an alloy of________________?
A nickel, copper and iron
B nickel, copper and zinc
C copper, nickel and antimony
D iron, zinc and bismuth
Correct Answer: nickel, copper and iron
Monel metal contains_________________?
A 63 to 67% nickel and 30% copper
B 88% copper and 10% tin and rest zinc
C alloy of tin, lead and cadmium
D malleable iron and zinc
Correct Answer: 63 to 67% nickel and 30% copper
DuraJomin contains___________________?
A 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe
B 92.5% aluminium, 40% copper, 2% nickel, and 1.5% Mg
C 10% aluminium and 90% copper
D 90% magnesium and 9% aluminium with some copper
Correct Answer: 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe
Delta metal is an alloy of__________________?
A copper, zinc and iron
B iron, nickel and copper
C iron, lead and tin
D iron, aluminium and magnesium
Correct Answer: copper, zinc and iron
Which of the following alloys does not contain tin_________________?
A white metal
B solder admiralty
C fusible metal
D phosphor bronze
Correct Answer: white metal
Addition of copper to aluminium results in_____________________?
A improvement of casting characteristics
B improvement of corrosion resistance
C one of the best known age and precipitation-hardening systems
D improving machinability
Correct Answer: one of the best known age and precipitation-hardening systems
Addition of lead and bismuth to aluminium results in_________________?
A improvement of casting characteristics
B improvement of corrosion resistance
C one of the best known age and precipitation-hardening systems
D improving machinability
Correct Answer: improving machinability
Constantant an alloy used in thermocouples is an alloy of __________________?
A copper and tin
B copper and zinc
C copper and iron
D copper and nickel
Correct Answer: copper and nickel
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