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Mechanical Engineering Objective Questions { Theory of Machines }



127. Pitch point on a cam is
A.Any point on pitch curve
B.The point on cam pitch curve having the maximum pressure angle
C.Any point on pitch circle
D.The point on cam pitch curve having the minimum pressure angle

128. In the scotch yoke mechanism, Corioli's component is
A.Involved
B.Not involved
C.Possible in smile position
D.A rare possibility

129. Rope brake dynamometer uses
A.Oil as lubricant
B.Water as lubricant
C.Grease as lubricant
D.No lubricant

130. The most commonly used dynamometer for tests in the laboratory is
A.Rope brake dynamometer
B.Prony brake dynamometer
C.(e) froude water vortex dynamometer
D.Amsler dynamometer

131. The following dynamometer is used for power measurement when the speed is high and the ,viscous force is small
A.Tesla fluid friction dynamometer
B.Froude water vortex dynamometer
C.Rope brake dynamometer
D.Amsler dynamometer

132. For large ranges of power and speed and for accurate measurement of the power, the following dynamometer is used
A.Tesla fluid friction dynamometer
B.Froude water vortex dynamometer
C.Rope brake dynamometer
D.Amsler dynamometer

133. The following dynamometer is widely used for absorption of wide range of powers at wide range of speeds
A.Hydraulic
B.Belt transmission
C.Rope brake
D.Electric generator

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