13711. The normal heptane (C7H16) is given a rating of __________ octane number.

By Admin / September 13, 2025

100

120

✅ The correct answer is option A.

13706. According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through centre of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.)

13716. The tap used to cut threads in a blind hole is

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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