The phrase "a general rule for" is correct and usable in written English.
It can be used when stating a broad guideline or principle that applies to a particular situation or context.
Example: "A general rule for effective communication is to listen actively and respond thoughtfully."
Alternatives: "a common guideline for" or "a standard principle for".
Is this true as a general rule for flash drives?
"Is that a general rule for all Red Sox pitchers?" I asked.
He has never been considered the premier player at his position, a general rule for judging the best of the best.
From the requirement for the two-cylinder engine, a general rule for the layout of the throws of four-stroke-cycle multicylinder crankshafts can be expressed.
As a general rule, for home use, I'd buy two whole chickens at a time, set aside the legs for one dish and roast the breasts - no other method really comes close to doing justice to the breast meat.
The Solar Cloth Company hopes the price of its products will fall as they become more popular – a general rule for any manufacturer – but it believes more money should be poured into researching solar energy.
As a general rule for beginners, discarding high cards is bad, the more so as the game goes long, as it increases your opponents' scoring opportunities (and reduces your own).
(This is a general rule for squat hopping in Paris: some of these places may look forbidding, but a wink and a smile can help to schmooze your way in).
As a general rule for choosing among them, green is good: a salad of escarole enlivened by avocado and anchovy; a medley of fava beans and sugar snap peas paired cleverly with an almond purée; a tangle of sharp-tasting arugula over carpaccio of American wagyu beef.
As a general rule, for me (I am fairly short of body – it might be a different story for long ladies, if so please comment below), anything structured and at least a little a-line on top, seems to work better than floppy, draped fabrics, which are fine for once you've outed the bump.
In this work, we identify a general rule for controlling the thermal transport in 2D pentagonal materials through bond saturation.
