⚙️Mechanical Engineering MCQs
Mechanical Engineering MCQs
488 MCQs11
Pig iron is the name given to________________?
Araw material for blast furnace
Bproduct of blast furnace made by reduction of iron ore
Ciron containing huge quantities of carbon
Diron in molten form in the ladles E. iron scrap
12
In nodular iron, graphite is in the form of_____________________?
Acementite
Bfree carbon
Cflakes
Dspheroids E. nodular aggregates of graphite
13
Pipes for bicycle frames are made of___________________?
Acold rolled steel
Bhot rolled steel
Cforged steel
Dcast steel E. carbon-chrome steel
14
Heavy duty leaf and coil spring* contain carbon of the following order ________________?
A0.2%
B0.5%
C0.8%
D1.0% E. 1.5%.
15
Drop forging dies contain carbon of the order of_________________?
A0.1 to 0.2%
B0.25 to 0.5%
C0.6 to 0.7%
D0.7 to 0.9% E. 1.0 to 1.2%.
16
The tensile strength of wrought iron is maximum _________________?
Aalong the lines of slag distribution
Bperpendicular to lines of slag distribution
Cuniform in all directions
Dunpredictable E. none of the above
17
In compression, a prism of brittle material will break________________?
Aby forming a bulge (l>) by shearing along oblique plane
Bin direction perpendicular to application of load
Cby crushing into thousands of pieces
Dnone of the above
18
Slow plastic defomiation of metals under a constant stress is known as________________?
Acreep
Bfatigue
Cendurance
Dplastic deformation E. non-plastic deformation
19
The number of electrons in 1 cm3 of metal would be of the order of_______________?
A1010
BTO16
C1022
D1040 E. 1052
20
The elastic stress strain behaviour of rubber is_____________________?
Alinear
Bnon-linear
Cplastic
Dno fixed relationship E. unpredictable behaviour