Theory of Machine A shaft has two heavy rotors mounted on it. The transverse natural frequencies, considering each of the rotor separately, are 100 Hz and 200 Hz respectively. The lowest critical speed is 9,360 r.p.m. 12,000 r.p.m. 6,000 r.p.m. 5,367 r.p.m. 9,360 r.p.m. 12,000 r.p.m. 6,000 r.p.m. 5,367 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The relation between number of pairs (p) forming a kinematic chain and the number of links (l) is l = 2p - 5 l = 2p - 3 l = 2p - 2 l = 2p - 4 l = 2p - 5 l = 2p - 3 l = 2p - 2 l = 2p - 4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The factor which affects the critical speed of a shaft is Span of shaft All of the listed here Diameter of disc Eccentricity Span of shaft All of the listed here Diameter of disc Eccentricity ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The ratio of the maximum displacement of the forced vibration to the deflection due to the static force, is known as Magnification factor Damping factor Logarithmic decrement Damping coefficient Magnification factor Damping factor Logarithmic decrement Damping coefficient ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The unbalanced force due to reciprocating masses Varies in magnitude and direction both Varies in direction but constant in magnitude Varies in magnitude but constant in direction Constant in magnitude and direction both Varies in magnitude and direction both Varies in direction but constant in magnitude Varies in magnitude but constant in direction Constant in magnitude and direction both ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The minimum periodic time of a compound pendulum is (1/2π). √(2kG/g) 2π. √(kG/g) 2π. √(2kG/g) (1/2π). √(kG/g) (1/2π). √(2kG/g) 2π. √(kG/g) 2π. √(2kG/g) (1/2π). √(kG/g) ANSWER DOWNLOAD EXAMIANS APP
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