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Machine Design

Machine Design
Which of the following material has the maximum ductility?

Zinc
Mild steel
Aluminium
Copper

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Machine Design
Which of the following pipe joints would be suitable for pipes carrying steam?

Bell and spigot
Expansion
Threaded
Flanged

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Machine Design
If T₁ and T₂ are the tensions on the tight and slack sides of the belt respectively, and Tc is the centrifugal tension, then initial tension in the belt is equal to

T₁ - T₂ + Tc
T₁ + T₂ + Tc
(T₁ + T₂ + Tc)/2
(T₁ - T₂ + Tc)/2

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Machine Design
The rocker arms in internal combustion engines are of__________.

Third type levers
None of these
Second type levers
First type levers

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Machine Design
A steel containing 0.8% carbon is known as

Eutectoid steel
Hypo-eutectoid steel
None of these
Hypereutectoid steel

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Machine Design
A steel containing up to 0.15% carbon is known as

Dead mild steel
Medium carbon steel
Mild steel
High carbon steel

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