Which of the following is easiest to bend?
A.Cast iron
B.Grey pig iron
C.Mottled pig iron
D.Steel
E.Wrought iron
Category: Engineeeing Mcqs
The longitudinal strain for a specimen is 0.01 and it is found to undergo 1 mm change in its thickness. The thickness of the specimen will be
A.10 mm
B.100 mm
C.1000 mm
D.400 mm
E.None of the above
In compression ignition engines swirl is
A.Circular motion imparted to gases after combustion
B.Circular motion imparted to suction air
C.Radial motion imparted to fuel air mixture
D.Directional movement of fuel spray
E.None of the above
Phosporus is manufactured by heating in electric furnace a mixture of
A.phosphate rock and coke
B.phosphate rock and sand
C.phosphate rock coke and sand
D.phosphate rock coke and common salt
Floating of a currency leads to
A.Devaluation
B.Revaluation
C.Over-valuation
D.Either revaluation or devaluation
E.Either revaluation or over-valuation
The most efficient equipment for removal of sub micron dust particles from blast furnace gas is
A.venturi scrubber
B.gravity settling chamber
C.electrostatic precipitator
D.cyclone separator
In order to achieve maximum possible fuel economy the design features which will be affected are
A.Volumetric efficiency
B.Compression ratio
C.Method of charging
D.Atomization
E.None of the above
In a universal testing machine during the testing of a specimen of original cross-sectional area 1 cm2 the maximum load appliied was 7.5 tonnes and neck area 0.6 sq. cm. The ultimate tensile strength of the specimen is
A.12.5 tonnes/cm2
B.10.0 tonnes/cm2
C.7.5 tonnes/cm2
D.4.5 tonnes/cm2
E.None of the above
When the bolt is subjected to shock loading the resilience of the bolt should be considered in order to prevent breakege at
A.Head
B.Shank
C.Transition between head and shank
D.Threaded portion
E.Anywhere
