81. If the controlling force line for a spring controlled governor when produced intersects the Y-axis at the origin, then the governor is said to be
82. When the speed of the engine fluctuates continuously above and below the mean speed, the governor is said to be
83. A single degree of freedom system is given by, $$m \times \frac{{{d^2}x}}{{d{t^2}}} + c \times \frac{{dx}}{{dt}} + sx = F\cos \omega t$$ with usual notations. It represents
84. A mechanism _________ for transmitting or transforming motion.
85. The motion between a pair which takes place in __________ is known as incompletely constrained motion.
86. When the body is suspended at the point of suspension, its periodic time and frequency will be ________ as compared to the body suspended at the point of percussion.
87. Length of arc of contact is given by
88. To transmit power from one rotating shaft to another whose axes are neither parallel nor intersecting, use?
89. In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where $$\mu $$ = Coefficient of friction between the blocks and the drum, $$\theta $$ = Semi-angle of each block subtending at the center of drum and n = Number of blocks)
90. The natural frequency of free transverse vibrations due to a point load acting over a simply supported shaft is equal to (where $$\delta $$ = Static deflection of a simply supported shaft due to the point load)
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