Which is an amorphous material ?
Which is an amorphous material ?
A. Glass
B. Mica
C. Brass
D. Cast iron
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Iron rust is
Question: Iron rust is
[A].ferrous oxide. [B].
hydrated ferric oxide. [C].
powdered iron. [D].
ferric sulphide. Answer: Option B
Explanation:
No answer description available for this question.
Electronic structure of a material is generally studied by__________________?
Electronic structure of a material is generally studied by__________________?A. Metallurgical microscope
B. Electron diffraction
C. Spectroscopic techniques
D. X-rayAnodic material used for the cathodic protection of underground buried steel pipeline is
Question: Anodic material used for the cathodic protection of underground buried steel pipeline is
[A].nickel or copper [B].
zinc or magnesium [C].
bronze [D].
brass Answer: Option B
Explanation:
No answer description available for this question.
For platinum thermocouples, lead wires are made of
Question: For platinum thermocouples, lead wires are made of
[A].copper & copper-nickel alloys. [B].
copper & iron. [C].
iron & nickel. [D].
tin & nickel. Answer: Option A
Explanation:
No answer description available for this question.
Cermets are ______________ materials?
Cermets are ______________ materials?A. Refractory
B. Reinforced
C. Abrasive
D. Fully metallicWhich of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (1/20th of ordinary metals) ?
Which of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (1/20th of ordinary metals) ?A. Invar
B. Constantan
C. Chromel
D. Alumel