The average heat transfer co-efficient over the entire length of the plate (ha) and the local heat transfer co-efficient (hL), in case of heat transfer over a flat plate in lminar zone is related as

Question: Boiling point of water gets lowered at high altitudes (e.g., hills), because
[A].

temperature is low.

[B].

atmospheric pressure is low.

[C].

atmospheric pressure is high.

[D].

none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Filler metal is not used in the __________ welding.
[A].

seam

[B].

electric spot

[C].

projection

[D].

all a, b & c

Answer: Option D

Explanation:

No answer description available for this question.

Question: Electrolytes conduct electric current by
[A].

the movement of ions.

[B].

the movement of molecules.

[C].

allowing electrons to flow through them from cathode to anode.

[D].

movement of electric charge through them.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Alloy powder manufactured by the following process have spherical shapes.
[A].

Electrochemical deposition.

[B].

Gaseous reduction.

[C].

Atomisation.

[D].

Mechanical attrition.

Answer: Option C

Explanation:

No answer description available for this question.