Related Questions

Steel with __________ carbon is known as hypo-eutectoid steel.
A 0.8%
B Below 0.8%
C Above 0.8%
D None of these
Eutectoid composition of carbon steel at room temperature is
A Cementite
B Pearlite
C Martensite
D Ferrite
Eutectoid reaction for iron-carbon system occurs at a temperature of __________ °C.
A 597
B 959
C 1147
D 1493
In process annealing, the hypo eutectoid steel is
A Heated from 30°C to 50°C above the upper critical temperature and then cooled in still air
B Heated from 30°C to 50°C above the upper critical temperature and then cooled suddenly in a suitable cooling medium
C Heated from 30°C to 50°C above the upper critical temperature and then cooled slowly in the furnace
D Heated below or closes to the lower critical temperature and then cooled slowly
In a hardening process, the hypo-eutectoid steel is
A Heated from 30°C to 50°C above the upper critical temperature and then cooled in still air
B Heated from 30°C to 50°C above the upper critical temperature and then cooled suddenly in a suitable cooling medium
C Heated from 30°C to 50°C above the upper critical temperature and then cooled slowly in the furnace
D Heated below or closes to the lower critical temperature and then cooled slowly
An eutectoid steel consists of
A Wholly pearlite
B Wholly austenite
C Pearlite and ferrite
D Pearlite and cementite
The cutting speed for drilling aluminium, brass and bronze with carbon steel drills is _________ cutting speed for drilling mild steel with high speed steel drills.
A Equal to
B Less than
C More than
D None of these
High carbon steel contains more than __________ percent carbon.
A 0.5
B 2.2
C 2.5
D 2.8
The percentage of carbon in low carbon steel is
A 0.05%
B 0.15%
C 0.3%
D 0.5%
Carbon percentage in medium carbon steel is around
A 0.1 to 0.35
B 0.35 to 0.5
C 0.8 to 1.4
D 1 to 1. 5

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