A pump that is sometimes called a gear-within-gear pump is a(n) _____ pump

A) external gear B) lobe C) internal gear D) piston


C

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In integrated ceiling systems, you would normally find _____

a. 30" × 60" tiles only b. 60" × 60" tiles only c. both 30" × 60" and 60" × 60" tiles d. 90" × 90" tiles

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Millwork is any item that is considered finish trim or finish woodwork.

Answer the following statement true (T) or false (F)

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Where do the majority of commercial nut crops come from in the United States?

What will be an ideal response?

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A 220 V, 1500 rpm, 11.6 A (armature current), separately excited motor is controlled by a single-phase, full-wave SCR converter. The armature resistance of the motor is 2 ?. The ac source voltage is 230 V (rms) 60 Hz. Enough inductance is added to ensure continuous conduction for any torque greater than 25% of rated value. (Ignore the the rotational losses.)

a. Calculate the triggering angle for a speed of 1000 rpm at rated torque. b. Assuming that the torque is a fan-type, calculate the triggering angle for a motor speed of 900 rpm. c. Sketch the speed-torque characteristics showing the operating points of cases (a) and (b).

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