Theory of Machine Rectangular bar in a rectangular hole is the following type of pair Freely constrained motion Incompletely constrained motion Completely constrained motion Partially constrained motion Freely constrained motion Incompletely constrained motion Completely constrained motion Partially constrained motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Idler pulley is used For changing the direction of motion of the belt For applying tension All of the listed here For increasing velocity ratio For changing the direction of motion of the belt For applying tension All of the listed here For increasing velocity ratio ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction) α = 45° + φ/2 α = 90° - φ α = 90° + φ α = 45° - φ/2 α = 45° + φ/2 α = 90° - φ α = 90° + φ α = 45° - φ/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a hydrodynamic journal bearing, there is A very thin film of lubricant between the journal and the bearing such that there is contact between the journal and the bearing A thick film of lubricant between the journal and the bearing No lubricant between the journal and the bearing A forced lubricant between the journal and the bearing A very thin film of lubricant between the journal and the bearing such that there is contact between the journal and the bearing A thick film of lubricant between the journal and the bearing No lubricant between the journal and the bearing A forced lubricant between the journal and the bearing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A disc is a spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be (where I = Mass moment of inertia of the disc, and ωP = Angular velocity of precession of the axis of spin) (1/2). I ω ωP Iω² (1/2).Iω² I ω ωP (1/2). I ω ωP Iω² (1/2).Iω² I ω ωP ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine If the damping factor for a vibrating system is unity, then the system will be Under damped Without vibrations Over damped Critically damped Under damped Without vibrations Over damped Critically damped ANSWER DOWNLOAD EXAMIANS APP
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