Tech A says that the difference between the stored pulse width and the actual pulse width required
to keep the mixture at the correct ratio is called fuel trim. Tech B says that long-term fuel trim
values can be positive or negative. Who is correct?

Ifa component is made of two or more materials with different modulus of elasticity (e), it is called a composite member and we calculate the factor·n". mention the formula for calculating n". also, ifn> 1, explain what will happen to the 1. transformed.gi) ifn 1, what will happen to the material when transformed material when