how many degrees are allowed between pull points?

Article 2/8 Problems 81 2/121 A 50-lb force is applied to the control pedal as shown. The force lies in a plane parallel to the r-z plane and is perpendicular to BC. Determine the moments of this force about point 0 and about the shaft OA. -90.6i - 690j - 338k lb-in. MOA = -690 lb-in. Ans. Mo 7" y-- 6" 15° 8" 50 lb Problem 2/121

You have measured both of the series and shunt field windings and found that each has over 10 mega ohm to ground. Your ohm meter, however indicates a resistance of 1.5 ohms across terminals S1 and S2. The ohmmeter indicates a resistance of 225 ohms between terminal F1 and F2. Are these readings normal for this type of machine, or is there likely a problem?

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