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Machine Design

Machine Design
For tight leakage joints, following type of thread is best suited

Square
Metric
Buttress
NPT (national pipe threads).

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Machine Design
Tensile strength of a mild steel specimen can be roughly predicted from following hardness test

Rockwell
Brinell
None of these
Vickers

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Machine Design
In designing a connecting rod, it is considered like __________ for buckling about Y-axis.

Both ends fixed
One end fixed and the other end free
Both ends hinged
One end fixed and the other end hinged

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Machine Design
The cold working of metals is carried out __________ the recrystallization temperature.

None of these
Above
Below
At

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Machine Design
When the pulley or other mating piece is required to slide along the shaft, a __________ sunk key is used.

None of these
Rectangular
Parallel
Square

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Machine Design
In block brakes, the ratio of shoe width to wheel diameter is taken between

0.25 and 0.50
0.75 and 1
0.50 and 0.75
0.1 and 0.25

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