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Machine Design

Machine Design
The strength of the unriveted plate (P) per pitch length is equal to

p.d.σt
p.t.σt
(p - d) σt
(p - d) t.σt

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Machine Design
A shaft is subjected to fluctuating loads for which the normal torque (T) and bending moment (M) are 1000 N-m and 500 N-m respectively. If the combined shock and fatigue factor for bending is 1.5 and combined shock and fatigue factor for torsion is 2, then the equivalent twisting moment for the shaft is

2050 N-m
2000 N-m
2136 N-m
2100 N-m

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Machine Design
Which one of the following is a positive drive?

V-belt drive
Rope drive
Chain drive
Crossed flat belt drive

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

25
20
10
15

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Machine Design
The bearing characteristic number in a hydrodynamic bearing depends upon

Viscosity, speed and bearing pressure
Viscosity, speed and load
Length, width and load
Length, width and speed

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Machine Design
When an open coiled helical compression spring is subjected to an axial compressive load, the stress induced in the wire is

Bending stress
Compressive stress
Shear stress
Tensile stress

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