MACHINE DESIGN QUIZ

Varies exponentially, being more at the torque-input end

Is uniform throughout

Varies exponentially, being less at the torque-input end

Varies linearly

When the strain energy per unit volume in a biaxial stress system reaches the strain energy at the elastic limit per unit volume as determined from a simple tension test

When the maximum principal strain in a biaxial stress system reaches the strain at the elastic limit as determined from a simple tension test

When the maximum shear stress in a biaxial stress system reaches the shear stress at elastic limit in a simple tension test

When the maximum principal stress in a biaxial stress system reaches the elastic limit of the material in a simple tension test

Difference of base circle radii/cosφ

Sum of pitch circle radii/cosφ

Difference of pitch circle radii/cosφ

Sum of base circle radii/cosφ

360°

270°

180°

120°

0.55

0.5

0.4

0.33

Parallel

Perpendicular

None of these

Co-axial

l/2

l

l/√2

2 l

T sec³φ

T/sec³φ

T sec²φ

T cosecφ

Left hand threads

Pointed threads

Right hand threads

Multiple threads

All of these

Independent of size of teeth

Dependent on number of teeth of a gear

Dependent on system of teeth