Mechanical Engineering MCQs

2075 MCQs  (Page 191 of 208)

Attempt Mechanical Engineering Mcqs Quiz
Process of austempering results in__________________?
A. Formation of bainite structure
B. Carburised structure
C. Martenistic structure
D. Lamellar layers of carbide distributed throughout the structure
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Solder is an alloy consisting of________________?
A. Tin, antimony, copper
B. Tin and copper
C. Tin and lead
D. Lead and zinc
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Induction hardening is the process of_____________________?
A. Hardening surface of workpiece to ob-tain hard and wear resistant surface
B. Heating and cooling rapidly
C. Increasing hardness throughout
D. Inducing hardness by continuous process
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A cold chisel is made of_______________?
A. Mild steel
B. Cast iron
C. H.s.s.
D. High carbon
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Inconel is an alloy of___________________?
A. Nickel, chromium and iron
B. Nickel, copper
C. Nickel, chromium
D. Nickel, zinc
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German silver is an alloy of___________________?
A. Silver and some impurities
B. Refined silver
C. Nickel, copper and zinc
D. Nickel and copper
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Machining properties of steel are improved by adding___________________?
A. Sulphur, lead, phosphorous
B. Silicon, aluminium, titanium
C. Vanadium, aluminium
D. Chromium, nickel
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The basic constituents of Hastelloy are_________________?
A. Aluminium, copper etc
B. Nickel, molybdenum etc
C. Nickel, copper, etc
D. All of the above
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Depth of hardness of steel is increased by addition of_________________?
A. Nickel
B. Chromium
C. Tungsten
D. Vanadium
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Maximum percentage of carbon in austenite is______________?
A. 0.025%
B. 0.26%
C. 0.8%
D. 1.25%
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Word of the Day
27 Sep
Undesirable
not wanted or desirable because harmful, objectionable, or unpleasant.
غیر مطلوب، ناروا، نامناسب

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