DESIGN OF MACHINE ELEMENTS - I

Increases ✘ Decreases ✘ Remains constant ✘ None of these ✔

Bolt ✘ Tap bolt ✘ Stud ✘ None of these ✔

Is just sufficient to hold parts together ✘ Approaches yield point ✘

Is 50% of yield point

✘ Is about yield point divided by safety factor ✔

Low ✘ High ✘ Moderate ✘ None of these ✔

18% nickel and 8% chromium

✘

18% chromium and 8% nickel

✘

18% nickel and 8% vanadium

✘

18% vanadium and 8% nickel

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Helical compression spring ✘ Spiral spring ✘ Torsion spring ✘ Belleville spring ✔

Axial load plus stress due to bending ✘ Acceleration/retardation of masses plus stress due to bending ✘ Axial load plus stress due to acceleration/retardation ✘ Bending plus stress due to acceleration/retardation ✔

Load lifted to the effort applied ✘ Mechanical advantage to the velocity ratio ✘ Load arm to the effort arm ✘ Effort arm to the load arm ✔

Plasticity ✘ Elasticity ✘ Ductility ✘ Malleability ✔

Increases ✘ Decreases ✘ Remain same ✘ None of these ✔