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When the material of key and shaft is same, and the width of key is one-fourth of the diameter of shaft (d), then length of key will be?
Answer: Option 3 Let'
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The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness of the shaft and $$I$$ = Mass moment of inertia of the disc attached at the end of a shaft)?
Answer: Option 3 Let'
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The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft and $$\tan \varphi $$ = Coefficient of friction between the shaft and bearing)?
Answer: Option 1 Let'
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The usual proportion for the width of key is (where d = Diameter of shaft or diameter of hole in the hub)?
Answer: Option 3 Let'
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The torque required to overcome viscous resistance of a footstep bearing is (where μ = Viscosity of the oil, N = Speed of the shaft, R = Radius of the shaft, and t = Thickness of the oil film)?
Answer: Option 4 Let'
1 Answers 7 views
In ______ machines, the size of the shaft is decided by the critical speed which depends on the deflection of the shaft.?
Answer: Option 3 Let'
1 Answers 1 views
A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved surface of the shaft, is known as,?
Answer: Option 1 Let'
1 Answers 1 views
A tapered key which fits in a key way in the hub and is flat on the shaft, is known as?
Answer: Option 4 Let'
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A taper key which fits half in the key way of the hub and half in the key way of shaft, is known as?
Answer: Option 2 Let'
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A flat-bed plotter uses a pen which moves in two directions across a piece of paper fixed on a flat-bed. Can you tell who controls the movements of this pen?
Answer: Option 3 A flat-bed plotter uses a pen which moves in two directions across a piece of paper fixed on a flat-bed. Can you tell who controls the movements...
1 Answers 1 views