This rating approximates the amount of time that a vehicle can be driven before the battery dies, if the charging system fails completely.
Select one:
a. Cold cranking amps
b. Cranking amps
c. Reserve capacity
d. None of the above

Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.

Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.