Explain shunt admittance in basic terms? explaim simply

What is a load break down simply?

A.1. Combination misalignment is caused byA. misalignment by both offset and angle.B. both shafts offset vertically.C. both shafts offset horizontally.D. both shafts being located at an angle.A.2. You can usually check for a leak in a vacuum system by looking at or feelingA. for an air flow along the piping.B. at the exhaust of the vacuum pump.C. at the vacuum gauge at the vacuum pump.D. for signs of dirt on the piping.A.3. When you measure the voltage drop across a set of contacts, you'reA. checking the quality of the contact set.B. sensing how much current is flowing in the circuit.C. measuring the equivalent motor resistance.D. checking the incoming voltages.

How is hysteresis detected in instruments? illustrate the effect of hysteresis on a instrument? what is an instrument span?