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Machine Design

Machine Design
The rivet head used for boiler plate riveting is usually

Snap head
Pan Head
Conical head
Counter sunk head

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Machine Design
The piston rod of a steam engine is usually connected to the cross-head by means of

Knuckle joint
Bolted joint
Cotter joint
Universal joint

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Machine Design
According to Indian standards, total numbers of fundamental deviations are

25
10
20
15

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Machine Design
An elastic bar is fixed at the upper end and loaded at the lower end by a falling weight. The shock load produced can be reduced by

Decreasing the cross-sectional area of the bar
Increasing the length of bar
Decreasing the modulus of elasticity of the bar
All of these

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Machine Design
In helical gears, the distance between similar faces of adjacent teeth along a helix on the pitch cylinders normal to the teeth, is called

Normal pitch
Axial pitch
Module
Diametral pitch

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Machine Design
According to Indian standards, a bolt thread of 6 mm size of coarse pitch and with allowance on the threads and normal tolerance grade is designated as

M6
M8 - 6d
M8
M6 - 8d

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