Bevel gears are similar to hypoid gears in that the gear shaft axes in both types intersect.
Answer the following statement true (T) or false (F)
False
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Si se está construyendo un edificio en el que se aplicará revestimiento sobre el entablado, se debe usar un entablado de un espesor mínimo de _____.
a. 3 ?8" (0.9 cm) b. 1 ?2" (1.3 cm) c. 5 ?8" (1.6 cm) d. 1" (2.54 cm)
DubaiWorks manufactures angular contact ball bearings for pumps that operate in harsh environments. The company invested $2.4 million in a process that resulted in net profits of $760,000 per year for five consecutive years. What rate of return did the company make?
What will be an ideal response?
What are the two main reasons why Latin is used for binomial nomenclature?
What will be an ideal response?
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.