- d + 17 mm
- 2d + 13 mm
- 2d + 20 mm
- 3.5d
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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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When a shaft is subjected to a twisting moment, every cross-section of the shaft will be under?
Answer: Option 3 Let'
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When a shaft, is subjected to torsion, the shear stress induced in the shaft varies from?
Answer: Option 3 Let'
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Height of liquid in agitation tank is normally maintained equal to the tank diameter. However, if the tank is too tall and a large liquid hold up is desired, then two or more impellers mounted on the same shaft may be used. The clearance between the tank bottom and the bottom most impeller should be about (where, D = impeller diameter)?
Answer: Option 2 Let'
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The natural frequency of free transverse vibrations due to uniformly distributed load acting over a simply supported shaft is (where $$\delta {\text{S}}$$ = Static deflection of simply supported shaft due to uniformly distributed load)?
Answer: Option 2 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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In designing a flange coupling, the pitch circle diameter of bolts is taken as (where d = Diameter of the shaft)?
Answer: Option 2 Let'
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In designing a sleeve coupling, length of the sleeve is taken as (where d = Diameter of the shaft)?
Answer: Option 4 Let'
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