Shows provide a good opportunity to learn about breeds of cats
A. True
B. False
A
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Which of the following statements about installing roll jacket on a vertical vessel is correct?
a. The first course of jacket is critical to leveling the entire installation. b. Jacket installation begins at the top of the vessel sidewall and works down. c. Longitudinal seams are secured with banding. d. Circumferential seams are secured with screws.
Torque is a force that accomplishes work by:
A. A grinding action B. A twisting action C. An explosive force D. A pushing action
What is the impedance of a single-phase inductive circuit having a voltage of 240 V and a current flow of 10 A?
A) 240 V/10 A = 24 ? impedance B) 240 V × 10 A = 2,400 ? impedance C) 10 A/240 V = 0.042 ? impedance D) Impedance cannot be calculated using only volts and amps.
Which of the following accurately describes ECL?
A) ECL stands for emitter-coupled logic; all of the inputs are coupled into the device through the emitters of the input transistors. B) ECL stands for electron-coupled logic; all of the devices used within the gates are N-type transistors. C) ECL stands for energy-coupled logic; the input energy is amplified by the input transistors and allows the device to deliver higher output currents. D) ECL stands for emitter-coupled logic; all of the emitters of the input transistors are connected together and each transistor functions as an emitter follower.