Dislocations are _______________ defects?
Dislocations are _______________ defects?
A. Point
B. Line
C. Volume
D. None of these
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Cold chiesel’s hammers are made of
Question: Cold chiesel’s hammers are made of
[A].high speed steel [B].
high carbon steel [C].
forged steel [D].
mild steel Answer: Option B
Explanation:
No answer description available for this question.
Addition of __________ in steel can help in increasing the depth of hardness.
Question: Addition of __________ in steel can help in increasing the depth of hardness.
[A].nickel [B].
chromium [C].
vanadium [D].
tungsten Answer: Option C
Explanation:
No answer description available for this question.
Draught produced by a tall chimney due to density difference between hot flue gas inside the Chimney and atmospheric air outside the chimney is more appropriately known as the __________ draught.
Question: Draught produced by a tall chimney due to density difference between hot flue gas inside the Chimney and atmospheric air outside the chimney is more appropriately known as the __________ draught.
[A].natural [B].
induced [C].
forced [D].
chimney Answer: Option A
Explanation:
No answer description available for this question.
An “orange peel” effect is observed
Question: An “orange peel” effect is observed
[A].as a defect during metal casting/ welding. [B].
during deep drawing of metallic sheet having large grain size. [C].
during faulty heat treatment of steel. [D].
during extrusion of metal through a die. Answer: Option B
Explanation:
No answer description available for this question.
Addition of beryllium to copper is done mainly to produce a/an __________ alloy.
Question: Addition of beryllium to copper is done mainly to produce a/an __________ alloy.
[A].non-sparking & non-magnetic [B].
high strength [C].
precipitation hardenable [D].
corrosion resistant Answer: Option A
Explanation:
No answer description available for this question.
In a fuel cell, chemical energy is converted into
Question: In a fuel cell, chemical energy is converted into
[A].electrical energy directly. [B].
mechanical energy. [C].
electrical energy and stored therein. [D].
none of these. Answer: Option A
Explanation:
No answer description available for this question.