A dummy activity is used in PERT network to describe the_____________________?

Question: An example of unsteady non uniform flow is the flow of liquid under pressure through a
[A].

tapering pipe at constant flow rate.

[B].

tapering pipe at either decreasing or increasing flow rate.

[C].

long pipeline of constant diameter.

[D].

none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Question: __________ test determines the yield strength, Young’s modulus of elasticity, percentage reduction in area & percentage elongation of a material.
[A].

Tensile

[B].

Fatigue

[C].

Impact

[D].

None of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: Coke is added in the blast furnace to
[A].

reduce & melt the iron ore.

[B].

increase the fluidity of slag.

[C].

remove sulphur & phosphorus from molten metal.

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an __________ body.
[A].

grey

[B].

black

[C].

opaque

[D].

white

Answer: Option A

Explanation:

No answer description available for this question.

Question: During brazing, if the fluxes are entrapped, it results in the
[A].

distortion of brazed joints.

[B].

cracking of joints.

[C].

presence of gas pockets.

[D].

corrosion.

Answer: Option D

Explanation:

No answer description available for this question.