Related Questions

Duralumin is an alloy of
A Aluminium, copper and manganese
B Aluminium, nickel and silicon
C Aluminium and nickel
D None of these
Aluminium bronze contains aluminium and copper in the ratio of
A 50 : 50
B 40 : 60
C 60 : 40
D 10 : 90
'Age hardening' of duralumin is due to
A Copper
B Magnesium
C Both A & B
D Neither A nor B
The machinability of aluminium increases when _________ is added to aluminium.
A Copper
B Magnesium
C Silicon
D Lead and bismuth
Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio
A 50 : 20 : 20 : 10
B 40 : 30 : 20 : 10
C 50 : 20 : 10 : 20
D 30 : 20 : 30 : 20
Engine pistons are usually made of aluminium alloy because it
A Is lighter
B Wear is less
C Absorbs shocks
D Is stronger
The aluminium alloy is used in cylinder blocks because
A It is lighter and has good heat dissipation characteristics
B Material cost is low
C It does not require any cylinder liners
D The piston is also made of aluminium alloy
The aluminium alloy, mainly used, for anodized utensil manufacture, is
A Duralumin
B Y-alloy
C Magnalium
D Hindalium
Aluminium alloy is one of the most suitable materials of construction for aircrafts mainly due to its
A High strength to weight ratio
B Low temperature strength properties
C Its ability to be cast, rolled, forged & stamped
D High strength and corrosion & oxidation-resistance at elevated temperature
If 2 kg of metal, of which 1/3 is zine and the rest is copper , be mixed with 3 kg of metal, of which 1/4 is zinc and the rest is copper , then what will be the ratio of zinc to copper in the mixture?
A 17 : 43
B 13 : 42
C 19 : 43
D 15 : 42

Next steps