Hammer blow occurs in
A.diesel engines
B.electric engines
C.steam engines
D.all engines
A.diesel engines
B.electric engines
C.steam engines
D.all engines
A.0.45 m/s
B.1 m/s
C.2.5 m/s
D.9.8 m/s
A.dinning facilities
B.recording the condition of track
C.tourists
D.military purpose
A.Belt conveyor
B.Flight conveyor
C.Pneumatic conveyor
D.Any of the above
A.belt conveyors
B.apron conveyors
C.pivoted bucked carriers
D.Any of the above
A.Caustic
B.Fragile
C.Explosive
D.Free flowing
A.bending
B.shear
C.tension
D.Any of the above
A.hooks are used
B.direction of dc current is reversed
C.ac current is passed through the coil
A.two
B.three
C.six
D.ten
A.1 to 5 m/s
B.6 to 15 m/s
C.20 to 30 m/s
D.30 to 50 m/s