In the Crossby engine indicator which one of the following mechanism is used?
A.Slider-crank mechanism
B.Scotch yoke mechanism
C.Scotch yoke mechanism
D.Modified pantograph mechanism
E.None of the above
A.Slider-crank mechanism
B.Scotch yoke mechanism
C.Scotch yoke mechanism
D.Modified pantograph mechanism
E.None of the above
A.Are fully balanced
B.Remain unbalanced
C.Are partially balanced
D.Cannot be balanced
E.None of the above
A.Kunckle join
B.Universal joint
C.Oldham’s coupling
D.Hooke’s joint
E.Bevel grars
A.Only three rigid links have no linear velocities relative to each other
B.Two rigid links rotate instantaneously relative to each other
C.One rigid link has no linear velocity
D.The two rigid links have no linear velocities relative to each other at the instantaneous centre
E.None of the above
A.Yes
B.No
C.Yes, provided the links are limited in number
D.Yes provided the distance is limited
E.None of the above
A.directly proportional to the number of coils in the spring
B.inversely proportional to the number of coils in the spring
C.inversely proportional to the square of the number of coils in the spring
D.directly proportional to the square of the number of coils in the spring
A.To reduce belt friction
B.To prevent belt joining from damaging the belt surface
C.To prevent the belt from running off the pulley
D.In case of cross belt drives only
E.None of the above
A.Along the angular velocity
B.Perpendicular to the angular velocity
C.Opposite to the angular velocity
D.Any of (A) and (B)
E.Any of (A) and (C)
A.The range of variation of engine speed
B.The ratio of the maximum speed to minimum speed within the operating range
C.The ratio of the difference between the maximum and mean speed to that of minimum to mean speed
D.The ratio of the difference between the maximum and minimum equilibrium speed to the mean equilibrium speed
E.None of the above
A.Half of the reciprocating masses are balanced by rotating masses
B.1/2 of the reciprocating mass are balanced by equivalent rotating mass
C.More than half of the reciprocating masses are balanced by rotating masses
D.Reciprocating masses are balanced half by equivalent opposite reciprocating masses and the balance by rotating masses
E.None of the above