Electrohydraulic injectors are purely mechanical devices.

Which of the following is true regarding pintle nozzles?

The fuel droplet size decreases as injection pressure increases.

Piezoelectric injectors use _______ to control fuel delivery.

Improper torque on injector line nuts can cause low power complaints.

Piezoelectric injectors use high-tensile plastic mechanical springs.

We can use this as a marker for training intensity, by using HRs around this number.

What are the 4 major causes of fatigue? Briefly describe them.

Exercise-induced muscle cramps are caused by an over-activation of _________.

Which of the following hormones are not associated with fat metabolism?