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Machine Design

Machine Design
Yield point in fatigue loading as compared to static loading is

Depends on other factors
Same
Lower
Higher

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Machine Design
Deep groove ball bearings are used for

Combined thrust and radial loads at high speed
Small angular displacement of shafts
Heavy thrust load only
Radial load at high speed

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Machine Design
A pressure vessel is said to be a thick shell, if the ratio of wall thickness to its diameter is

None of these
Equal to 1/10
Greater than 1/10
Less than 1/10

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Machine Design
A flanged pipe joint will be a leak-proof joint, if the circumferential pitch of the bolts is (where d = Diameter of bolt hole)

Less than 20d
Greater than 30d
Between 20d and 30d
Equal to inside diameter of pipe

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Machine Design
The stress induced in the belt is,

Compressive stress
Torsional shear stress
Direct shear stress
Tensile stress

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Machine Design
The shear plane in case of bolts should

Never be across the threaded portion
Be parallel to axis of bolt
Be across threaded portion of shank
Be normal to threaded portion of shank

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MORE MCQ ON Machine Design

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