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.

A three-phase line has an impedance of 0.4 j2.7 ohms per phase. The line feeds two balanced three-phase loads that are connected in parallel. The first load is absorbing 560.1kVA at 0.707 power factor lagging.

In casting experiments performed using a certain alloy and type of sand mold, it took 155 sec for a cube-shaped casting to solidify. The cube was 50 mm on a side. (a) Determine the value of the mold constant Cm in Chvorinov's Rule.

The first step in calculating a truss is to calculate the reactions on the entire truss using a free body diagram. a) - True b) - False

Which statement is true? A spontaneous abortion is the same as an induced abortion. The case of Roe v. Wade legalized abortion in all three trimesters. The AMA adopted an anti-abortion position in 1959.

When fluid in a pipe is accelerated linearly from rest, it begins as laminar flow and then undergoes transition to turbulence at a time ttr that depends on the pipe diame - ter D, fluid acceleration a, density ρ, and viscosity μ.

Just getting to your class is enough for showing up. A) True B) False

A completely reversible heat pump produces heat at a rate of 100 kW to warm a house maintained at 25℃. The exterior air, which is at 0℃, serves as the source.

A closed system undergoes a process in which work is done on the system and the heat transfer Q occurs only at temperature Tb. For each case, determine whether the entropy change of the system is positive, negative, zero, or indeterminate.

A scientist who is evaluating an ancient human skeleton for signs of vitamin and nutrient deficiency is conducting:

Which of the following is required in order to make a protected left turn A. A left green arrow B. No oncoming traffic C. A left turn only lane D. A large enough gap