Why did people prefer Richard the Lionheart over his father, Henry II?
a. Richard filled the English treasury exhausted by his father.
b. Henry preferred France and probably couldn’t speak English.
c. Richard was shrewd, competent, and better for England.
d. Richard was larger than life and every inch the ideal chivalrous king.
d. Richard was larger than life and every inch the ideal chivalrous king.
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When actuation oil enters the HEUI, which of the following components does it act directly on?
A. nozzle valve B. fuel pump chamber C. amplifier piston D. fuel pressure regulator
As the load on an engine increases, manifold vacuum decreases and the manifold absolute pressure ________
A) Increases B) Changes with barometric pressure C) Remains same value D) Decreases
Calculate the current required to lift the load for the electromagnet of Example 18.9. Calculate the holding current required to keep the load in place once it has been lifted and is attached to the magnet.
Assume:
N = 700;
?0 = 4? × 10?7;
?r = 104 (equal for electromagnet and load);
initial distance (air gap) = 0.5 m;
magnetic path length of electromagnet = l1 = 0.80 m;
magnetic path length of movable load = l2 = 0.40 m;
gap cross-sectional area = 5 × 10?4 m2;
m = mass of load = 10 kg;
g = 9.8 m/s2.
Example 18.9
An electromagnet is used to collect and support a solid piece of steel, as shown in Figure 18.38. Calculate the starting current required to lift the load and the holding current required to keep the load in place once it has been lifted and is attached to the magnet. Assume that the cross-sectional areas of the electromagnet, load (bar), and air gap are equal.
Some resistor and reactor starters use multiple steps of starting. How is this accomplished?
What will be an ideal response?