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Machine Design

Machine Design
In standard taper roller bearings, the angle of taper of outer raceway is

15°
25°
8°
5°

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Machine Design
Which of the following screw thread is used for power transmission in one direction only?

Square threads
Acme threads
Multiple threads
Buttress threads

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Machine Design
Three different weights fall from a certain height under vacuum. They will take

Same time to reach earth
Times proportional to weight to reach earth
Times inversely proportional to weight to reach earth
None of these

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

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

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Machine Design
The longitudinal joint in boilers is used to get the required

Efficiency of boiler
Length of boiler
Diameter of boiler
Length and diameter of boiler

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Machine Design
In second type of levers,

Load is in between the fulcrum and effort
Effort is in between the fulcrum and load
Fulcrum is in between the load and effort
None of these

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