17415. Prandtl number (PN) is given by PN = μ.cp/k.

By Admin / September 13, 2025

Yes

✅ The correct answer is option A.

17412. The natural frequency of free transverse vibrations of a shaft fixed at both ends and carrying a uniformly distributed load is 0.571/δS , where δS is the static deflection of a shaft fixed at both ends and carrying a uniformly distributed load.

17418. Which of the following key is preferred for the condition when a large amount of impact type torque is to be transmitted in both direction of rotation?

1. A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm².

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2. Transformer cores are normally made from

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