Which of the following is an ore dressing operation ?
Which of the following is an ore dressing operation ?
A. Classification
B. Smelting
C. Roasting
D. None of these
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Heat release during phase change is observed in case of a/an_________________?
Heat release during phase change is observed in case of a/an_________________?A. Boiler
B. Condenser
C. Evaporator
D. All A. B. & C.Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot_____________________?
Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot_____________________?A. Piercing
B. Sning
C. Drawing
D. ExtrusionA fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm2.
Question: A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm2.
[A].6 [B].
18 [C].
38 [D].
52 Answer: Option B
Explanation:
No answer description available for this question.
Material of construction of foundry crucible is _________________?
Material of construction of foundry crucible is _________________?A. Lead
B. Stainless steel
C. Graphite
D. Cast ironThe lightest non-inflammable gas is_________________?
The lightest non-inflammable gas is_________________?A. H2
B. He
C. Ar
D. O2__________ wire is never used for making the heating element.
Question: __________ wire is never used for making the heating element.
[A].Nichrome [B].
Kanthal [C].
Invar [D].
None of these Answer: Option C
Explanation:
No answer description available for this question.