Technician A says vacuum bleeding can be done by a single technician. Technician B says vacuum bleeding may draw air into the system past the bleeder valve. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
C
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The pitch of the thread is the:
A) Distance between a point on a screw thread to a corresponding point on the next thread B) Same as the number of threads per inch C) Helix angle D) Distance a nut will travel in one revolution on a two lead screw thread
An inductor with an inductance of three henrys (H) is to be connected to a 60 Hz circuit. What will the inductive reactance be?
A. 180 ? B. 360 ? C. 565 ? D. 1131 ?
Which statement is true regarding steel as used for structural support in construction?
A. steel will not begin to fail until it reaches temperatures of over 2000 degrees F. B. steel will always buckle in the middle before it fails C. steel may begin to fail at 1000 degrees F. D. steel trusses will last longer than wood trusses under fire conditions.
Two technicians are discussing electrical wires. Technician A says that the current carrying capacity of a wire is directly rated to its cross-section. Technician B says that metric sizing of a wire directly refers to the cross-section of the wire. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B