Theory of Machine The periodic time of one oscillation for a simple pendulum is 2π. √(g/l) 2π. √(l/g) (1/2π). √(l/g) (1/2π). √(g/l) 2π. √(g/l) 2π. √(l/g) (1/2π). √(l/g) (1/2π). √(g/l) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and φ = Angle of friction) P = W tan(φ - α) P = W tan(α - φ) P = W cos(α + φ) P = W tan(α + φ) P = W tan(φ - α) P = W tan(α - φ) P = W cos(α + φ) P = W tan(α + φ) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The tendency of a body to resist change from rest or motion is known as Resisting force Mass Inertia Friction Resisting force Mass Inertia Friction ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In an open pair, the two elements of a pair Are not held together mechanically Are kept in contact by the action of external forces, when in motion Have a surface contact when in motion Have a line or point contact when in motion Are not held together mechanically Are kept in contact by the action of external forces, when in motion Have a surface contact when in motion Have a line or point contact when in motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A mechanism is an assemblage of Four or more than four links Three links All of these Two links Four or more than four links Three links All of these Two links ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A Hartnell governor has its controlling force (Fc) given by Fc = ar + b, where r is the radius of rotation and a and b are constants. The governor becomes isochronous when a is +ve and b = 0 a = 0 and b is +ve a is +ve and b is -ve a is +ve and b is also +ve a is +ve and b = 0 a = 0 and b is +ve a is +ve and b is -ve a is +ve and b is also +ve ANSWER DOWNLOAD EXAMIANS APP
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