1
GATE ME 2010
+2
-0.6
A mass $$m$$ attached to a spring is subjected to a harmonic force as shown in the figure. The amplitude of the forced motion is observed to be $$50$$ mm. The value of m (in kg) is
A
$$0.1$$
B
$$1.0$$
C
$$0.3$$
D
$$0.5$$
2
GATE ME 2009
+2
-0.6
An automotive engine weighing $$240$$ kg is supported on four springs with linear characteristics. Each of the front two springs have a stiffness of $$16$$ MN/m while the stiffness of each rear spring is $$32$$ MN/m. The engine speed (in rpm), at which resonance is likely to occur, is
A
$$6040$$
B
$$3020$$
C
$$1424$$
D
$$955$$
3
GATE ME 2009
+2
-0.6
A vehicle suspension system consists of a spring and a damper. The stiffness of the spring is $$3.6$$ kN/m and the damping constant of the damper is $$400$$ Ns/m. If the mass is $$50$$ kg, then the damping factor ($$\xi$$) and damped natural frequency ($${f_n}$$) respectively are
A
$$0.47$$ and $$1.19$$ $$Hz$$
B
$$0.471$$ and $$7.48$$ $$Hz$$
C
$$0.666$$ and $$1.35$$ $$Hz$$
D
$$0.666$$ and $$8.50$$ $$Hz$$
4
GATE ME 2008
+2
-0.6
A uniform rigid rod of mass $$m =1kg$$ and length $$L=1$$ m is hinged at its centre & laterally supported at one end by a spring of spring constant $$k=300N/m.$$ The natural frequency $${\omega _n}$$ in rad/s is
A
$$10$$
B
$$20$$
C
$$30$$
D
$$40$$
GATE ME Subjects
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Medical
NEET