If hydraulic pressure is 1500 psi, which category does it fall under?

If hydraulic pressure is 1500 psi, which category does it fall under?

• A. 1200 psi
• B. 1200-1400 psi
• C. 1400-1600 psi
• D. 1600 psi

Answer: (C)

Think of categories as intervals that cover ranges of values. A value belongs to the interval that contains it. For 1500 psi, it’s greater than 1400 and less than 1600, so it lies in the 1400-1600 psi category. That’s why this is the best answer. If boundaries are inclusive, 1400 and 1600 would also fall into the same interval; if not, the exact boundary would determine which adjacent category they belong to, but most practice problems treat these ranges as inclusive to avoid ambiguity.

Think of categories as intervals that cover ranges of values. A value belongs to the interval that contains it. For 1500 psi, it’s greater than 1400 and less than 1600, so it lies in the 1400-1600 psi category. That’s why this is the best answer. If boundaries are inclusive, 1400 and 1600 would also fall into the same interval; if not, the exact boundary would determine which adjacent category they belong to, but most practice problems treat these ranges as inclusive to avoid ambiguity.