Mechanical Engineering MCQs

A. Grey cast iron, low carbon steel, wrought iron
B. Low carbon steel, grey cast iron, wrought iron
C. Wrought iron,low carbon steel, grey cast iron
D. Wrought iron, grey cast iron, low carbon steel

A. 50 : 50
B. 40 : 60
C. 60 : 40
D. 20 : 80

A. Nickel, copper and iron
B. Nickel, copper and zinc
C. Copper, nickel and antimony
D. Iron, zinc and bismuth

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

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

A. 0.5% of phosphorous
B. 1% phosphorous
C. 2.5% phosphorous
D. 5% phosphorous

A. White metal
B. Solder admiralty
C. Fusible metal
D. Phosphor bronze

A. Copper, zinc and iron
B. Iron, nickel and copper
C. Iron, lead and tin
D. Iron, aluminium and magnesium

A. Improvement of casting characteristics
B. Improvement of corrosion resistance
C. One of the best known age and precipitation-hardening systems
D. Improving machinability

A. iron
B. copper
C. aluminium
D. zinc