Related Questions

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
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
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
Aluminium bronze contains aluminium and copper in the ratio of
A 50 : 50
B 40 : 60
C 60 : 40
D 10 : 90
The machinability of aluminium increases when _________ is added to aluminium.
A Copper
B Magnesium
C Silicon
D Lead and bismuth
Constantan 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
Engine pistons are usually made of aluminium alloy because it
A Is lighter
B Wear is less
C Absorbs shocks
D Is stronger
Duralumin is an alloy of aluminium and copper. Percentage of copper in duralumin is
A 38
B 26
C 16
D 4
If 15 men working independently and at the same rate can manufacture 27 baskets in an hour, how many baskets would 45 men working independently and at the same rate manufacture in 40 minutes?
A 27
B 35
C 40
D 54
If 15 men working at the same rate can manufacture 27 baskets in an hour, how many baskets would 45 men manufacture in 40 minutes?
A 27
B 54
C 35
D 40

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