Hardened steel is softened by
Question: Hardened steel is softened by
[A].
normalising
tempering
annealing
carburising
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
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Filler material used in welding should have __________ as compared to the parent metal to be welded.
Question: Filler material used in welding should have __________ as compared to the parent metal to be welded.
[A].lower melting temperature [B].
same melting temperature [C].
same composition [D].
both ‘b’ & ‘c’ Answer: Option D
Explanation:
No answer description available for this question.
In case of a pipe of constant cross-sectional area, the maximum fluid velocity obtainable is
Question: In case of a pipe of constant cross-sectional area, the maximum fluid velocity obtainable is
[A].the velocity of sound. [B].
dependent on its cross-sectional area. [C].
dependent on fluid viscosity. [D].
dependent on fluid density. Answer: Option A
Explanation:
No answer description available for this question.
Euler’s equation of motion is a statement expressing
Question: Euler’s equation of motion is a statement expressing
[A].conservation of mass. [B].
conservation of energy. [C].
Newton’s first law of motion. [D].
Newton’s second law of motion. Answer: Option A
Explanation:
No answer description available for this question.
A balanced chemical reaction equation conforms to the law of
Question: A balanced chemical reaction equation conforms to the law of
[A].conservation of mass [B].
Avagadro’s hypothesis [C].
gaseous volumes [D].
none ofthese Answer: Option A
Explanation:
No answer description available for this question.
Check in a centrifugal pump is
Question: Check in a centrifugal pump is
[A].provided in the discharge line. [B].
generally a globe valve. [C].
provided to prevent liquid from backing up through the pump when the pump is turned off or accidently stops running. [D].
all (a), (b) and (c). Answer: Option D
Explanation:
No answer description available for this question.
Feed check valve is used in steam boilers to
Question: Feed check valve is used in steam boilers to
[A].check the water level in the boiler. [B].
check the feed water flow rate. [C].
feed high pressure water to boiler and guard against its backflow through it. [D].
none of these. Answer: Option C
Explanation:
No answer description available for this question.