Related Questions

Shock resisting steels should have
A Low wear resistance
B Low hardness
C Low tensile strength
D Toughness
For hardening alloy steels and high speed steels, they are heated to
A 1100 to 1300°C
B 1300 to 1500°C
C 500 to 600°C
D 700 to 900°C
Steels with high carbon equivalent have poor weldability, because in these steels during welding
A Carbon and other alloying elements get oxidised from the weld pool
B Excessive ferrite forms in the heat affected zone leading to poor toughness of the weld
C Martensite forms in the heat affected zone leading to poor toughness/ductility of the weld
D Segregation of carbon and other element occurs in the weld pool leading to poor properties of the weld
'Killed steels' are those steels
A Which are destroyed by burning
B Which after their destruction are recycled to produce fresh steel
C Which are deoxidized in the ladle with silicon and aluminium
D In which carbon is completely burnt
Ferric stainless steels compared to austenitic stainless steels
A Have lower corrosion resistance
B Are harder to fabricate
C Are less ductile and hence less suitable for cold pressing
D All of the above
A material is capable of resisting softening at high temperature, because of its property termed as
A Hot temper
B Hot hardness
C Fatigue
D Creep
বাল্যবিবাহ প্রতিরোধের হেল্পলাইন হলো (The helpline of resisting child marriage is)-
A ১০৯ (109)
B ৯৯৯ (999)
C 103 (103)
D 333 (333)
In a turning moment diagram, the variations of energy above and below the mean resisting torque line is called
A fluctuation of energy
B maximum fluctuation of energy
C coefficient of fluctuation of energy
D none of the mentioned
Which of the following has more fire resisting characteristics?
A Marble
B Lime stone
C Compact sand stone
D Granite
Which of the following metamorphic rocks has the most weather resisting characteristics?
A Marble
B Quartzite
C Slate
D Lime stone

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