Addition of nickel to copper improves its_________________?
Addition of nickel to copper improves its_________________?
A. Machinability
B. Ductility
C. Strength
D. Hardness
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Tin coating on metals is not done by_____________________?
Tin coating on metals is not done by_____________________?A. Spraying
B. Powder metallurgy
C. Hot dipg
D. Electro-depositionConstantan is an alloy of
Question: Constantan is an alloy of
[A].Cu (55%) & Sn (45%). [B].
Cu (55%) & Ni (45%). [C].
Pt (95%) & Rh (10%). [D].
Fe (80%) & Ni (20%). Answer: Option B
Explanation:
No answer description available for this question.
In a plate type heat exchanger, heat transfer plates are never made of _________________?
In a plate type heat exchanger, heat transfer plates are never made of _________________?A. Stainless steel
B. Cast iron
C. Titanium
D. Hastelloy C100% H2SO4 at 30°C can’t be stored in a vessel made/lined with ___________________?
100% H2SO4 at 30°C can’t be stored in a vessel made/lined with ___________________?A. Cast iron and high silicon iron
B. Mild steel and stainless steel
C. Aluminium, tin and rubber
D. Teflon, glass and porcelainLead pipe is
Question: Lead pipe is
[A].especially resistant to solutions containing H2SO4. [B].
usually joined by burning (e.g. by melting to adjacent pieces with a torch). [C].
having very low elastic limit resulting in permanent deformation from either mechanical or thermal strain. [D].
all (a), (b) and (c). Answer: Option D
Explanation:
No answer description available for this question.
Invar used in thermocouples is an alloy of nickel and________________?
Invar used in thermocouples is an alloy of nickel and________________?A. Iron
B. Copper
C. Chromium
D. Lead