Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is calculated by the __________________ method?
(A) Diminishing balance
(B) Sinking fund
(C) Multiple straight line
(D) Sum of the years digit
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
A material subjected ________________ must have high resilience?
(A) Shock loading
(B) Vibration
(C) Fatigue
(D) Tension
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_________________?
(A) The better insulation material should be put just next to pipe (i.e., inside)
(B) The better insulating material should be put outside
(C) Either of the insulating material could be put on either side
(D) Steam temperature is considered before deciding as to which insulating material is to be put inside (i.
(D) , just next to the pipe)
Lead is added to 60:40 brass primarily to improve_________________?
(A) Machinability
(B) Corrosion resistance
(C) Fluidity
(D) Strength
Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be in the case of________________?
(A) Steel
(B) Glass wood
(C) Copper
(D) Fireclay bricks
Which one can be directly solidified from gaseous state without entering into liquid state ?
(A) Helium
(B) Oxygen
(C) Carbon dioxide
(D) None of these
If the head is doubled in & centrifugal pump, the power required will increase in the ratio of__________________?
(A) 23
(B) 23/2
(C) 25/2
(D) 21/3
Brazing filler metal used for joining steel plates_________________?
(A) Melts below the melting points of base metals
(B) Melts below 300°C
(C) Is copper phosphorous alloy
(D) Is copper