power transmitted to shaft in parallel

Compressive stress acts on a shaft transmitting power in parallel when:

• Torsional shear stress is less than yield strength
• Torsional shear stress is greater than yield strength
• Bending moment is less than yield moment
• Bending moment is greater than yield moment

The power transmitted by a solid steel shaft is _______ the power transmitted by a hollow steel shaft with the same outside diameter.

• More than
• Less than
• The same as
• Cannot be determined

wo identical shafts are to be used to transmit a total power of 30 kW. If one of the shafts fails, how much power can the other shaft carry?

• 0 kW
• 15 kW
• 30 kW
• 60 kW

In a system consisting of parallel shafts, the power is divided among the shafts:

• According to the ratio of their speeds
• According to the ratio of their diameters
• According to the ratio of their lengths
• Equally among the shafts

Two parallel shafts of different materials are used to transmit equal power. If the stress in the first shaft is twice that in the second shaft, then the diameter of the first shaft compared to the diameter of the second shaft is:

• Half
• Double
• The same
• Four times larger