The protection against lightning is provided by
A.Earthing screen
B.Overhead ground wires
C.Lightning arresters
D.Surge diverters
E.Any of the above
Category: Mechanical Engineering Mcqs
In nodular iron, graphite is present in the form of
A.Flakes
B.Needles
C.Powder
D.Spheroids
E.Prisms
The operation of removing trapped air from hydraulic braking system is known as
A.Trapping
B.Tapping
C.Pressurization
D.Bleeding
E.Clearing
Which of the following least affects break even point?
A.change in selling price
B.change in volume of production
C.change in fixed cost
D.change in product mix
A particle is of wieght 8 kg. When it is allowed to fall under the force of gravity its momentum at the time t = 2 sec would be
A.2 kg sec
B.8 kg sec
C.16 kg sec
D.32 kg sec
E.48 kg sec
The maximum continuous power available from a hydro-electric plant under the most adverse hydraulic conditions is known as
A.Base power
B.Firm power
C.Primary power
D.Secondary power
E.Installed capacity
In case of thin walled cylinders the ratio of longitudinal stress to shear stress is
A.2
C.4
E.None of the above
The velocity distribution for flow between two fixed parallel plates
A.Is constant over the cross-section
B.Varies parabolically across the section
C.Is zero at the plates and linearly increases towards the plates
D.Is zero in the middle and increases linearly towards the plates
E.None of the above
Fatigue cracks in metals normally start at
A.Centre of the specimen
B.Core of the specimen
C.Ends of the specimen
D.Surface of the specimen
E.Any spot in the specimen
One of more electronic tubes are used in the circuitry of a VTVM for
A.amplification
B.rectification
C.both for amplification and rectification
D.None of the above
