Trees and shrubs may be divided into evergreen and _____
a. woody c. deciduous
b. fleshy d. ornamental
C
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What does federal law mandate accompany any potentially hazardous substance?
A. Skull and crossbones logo B. MSDS C. Manufacturer responsibility waiver D. Antidote for exposure
A dc, separately excited motor is driven by a full-wave, SCR, ac/dc converter. The voltage on the ac side is 120 V (rms). The field constant of the motor K? = 3 Vs. At a load torque of 300 Nm and triggering angle of 40o , the motor speed is 100 rpm, and the armature current is continuous.
a. The polarities of the terminal voltage of the motor (armature voltage) are reversed, and the triggering angle is simultaneously changed. Assume that the load torque is also reversed and is equal to 300 Nm. Calculate the triggering angle that stops the motor and keeps it at the holding position. Assume that the current is still continuous. b. Sketch the speed-torque characteristics and indicate the steady state operating points before and after polarity reversal.
Shorter runners in a port fuel injected engine provide which of these?
A) Minimum low-RPM power B) Minimum high-RPM power C) Increased low-RPM power D) Increased high-RPM power
To the nearest hundredth inch, what is the circumference of a circle whose diameter is 12.2 centimeters?
What will be an ideal response?