Questions and answers for exam Preparation

MCQs

Total Questions : 5013 | Page 499 of 502 pages

Question 4981. Lead is added to 60:40 brass primarily to improve_________________?

Machinability
Corrosion resistance
Fluidity
Strength

Discuss Question

Answer: Option A. -> Machinability
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 4982. A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities. For minimum heat transfer to take place_________________?

The better insulation material should be put just next to pipe (i.e., inside)
The better insulating material should be put outside
Either of the insulating material could be put on either side
Steam temperature is considered before deciding as to which insulating material is to be put inside (i.e., just next to the pipe)

Discuss Question

Answer: Option A. -> The better insulation material should be put just next to pipe (i.e., inside)
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 4983. A material subjected ________________ must have high resilience?

Shock loading
Vibration
Fatigue
Tension

Discuss Question

Answer: Option A. -> Shock loading
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 4984. Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be in the case of________________?

Steel
Glass wood
Copper
Fireclay bricks

Discuss Question

Answer: Option B. -> Glass wood
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 4985. An example of unsteady non uniform flow is the flow of liquid under pressure through a__________________?

Tapering pipe at constant flow rate
Tapering pipe at either decreasing or increasing flow rate
Long pipeline of constant diameter
None of these

Discuss Question

Answer: Option B. -> Tapering pipe at either decreasing or increasing flow rate
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 4986. Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is calculated by the __________________ method?