Securities are typically divided into debts and equities. A debt security represents money that is borrowed and must be repaid, with terms that define the amount borrowed, interest rate and maturity/renewal date. Debt securities include government and corporate bonds, certificates of deposit (CDs) , preferred stock and collateralized securities (such as CDOs â and CMOs â).
Psi : Psi is the abbreviation of pound per square inch, and is widely used in British and American. 1 psi = 6,894.76 Pascals.
Some of these derive from a unit of force divided by a unit of area; the SI unit of pressure, the pascal (Pa), for example, is one newton per square metre; similarly, the pound-force per square inch (psi) is the traditional unit of pressure in the imperial and US customary systems.he SI unit for pressure is the pascal (Pa), equal to one newton per square metre (N/m 2 or kgÂ·m â1 Â·s â2). This name for the unit was added in 1971; before that, pressure in SI was expressed simply in newtons per square metre. Other units of pressure, such as pounds per square inch and bar, are also in common use.