Strength to weight ratio for a circuit shaft transmitting power is directly proportional to the

For a pinion of $$15$$ teeth, under cutting ____________( increases / decreases) with _______________(increases / decreases ) of pressure angle.

Converging passage is used for feeding the liquid molten metal into the mould to

A bush was turned after mounting the same on a mandrel. The mandrel diameter in millimeters is $${40^{\matrix{ { + 0.00} \cr { - 0.05} \cr } }}$$ and bore diameter of bush is $${40^{\matrix{ { + 0.06} \cr { - 0.00} \cr } }}$$.

The maximum eccentricity of the bush, in $$mm$$ will be