1
GATE ME 2009
MCQ (Single Correct Answer)
+2
-0.6
Match the approaches given below to perform stated kinematics/dynamics analysis of machine

Analysis
$$P.$$ Continuous relative rotation
$$Q.$$ Velocity and acceleration
$$R.$$ Mobility
$$S.$$ Dynamic - static analysis

Approach
$$1.$$ D' Alembert's principal
$$2.$$ Grubler's criterion
$$3.$$ Grashoff's law
$$4.$$ Kennedy's theorem

A
$$P = 1,Q = 2,R = 3,S = 4$$
B
$$P = 3,Q = 4,R = 2,S = 1$$
C
$$P = 2,Q = 3,R = 4,S = 1$$
D
$$P = 4,Q = 2,R = 1,S = 3$$
2
GATE ME 2007
MCQ (Single Correct Answer)
+2
-0.6
A quick return mechanism is shown in below. The crank OS is drive at $$2$$ rev/s in counter clockwise direction

If the quick return ratio is $$1:2$$, then the length of the crank in mm is

A
$$250$$
B
$$250\sqrt 3$$
C
$$500$$
D
$$500\sqrt 3$$
3
GATE ME 2007
MCQ (Single Correct Answer)
+2
-0.6
The input link Q2P of a four bar linkage is rotated at $$2$$ rad/s counter clockwise direction as shown below. The angular velocity of the coupler PQ in rad/s, at an instant when $$\angle {O_4}{O_2}P = {180^ \circ },$$ is
A
$$4$$
B
$$2\sqrt 2$$
C
$$1$$
D
$${1 \over {\sqrt 2 }}$$
4
GATE ME 2007
MCQ (Single Correct Answer)
+2
-0.6
A quick return mechanism is shown in below. The crank OS is drive at $$2$$ rev/s in counter clockwise direction

The angular speed of PQ in rev/s when the block R attains maximum speed during forward stroke (stroke with slower speed) is

A
$$1/3$$
B
$$2/3$$
C
$$2$$
D
$$3$$
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