Which brake friction material has been phased out due to health hazards?
What will be an ideal response?
Asbestos
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Answer the following statement(s) true (T) or false (F)
1. If the direction of armature rotation is reversed at start-up, the brush polarity is also reversed. 2. There is only one method that can be used to renew the residual magnetism. 3. The motorizing test can be used for restoring residual flux if the generator armature is mechanically engaged to the prime mover and cannot rotate freely. 4. Any generator has critical field resistance. 5. The terms voltage regulation and voltage control have the same meaning.
A 2-in-diameter spherical ball whose surface is maintained at a temperature of 170°F is suspended in the middle of a room at 70°F. If the convection heat transfer coefficient is 15?Btu/h•ft2•°F and the emissivity of the surface is 0.8, determine the total rate of heat transfer from the ball.
What will be an ideal response?
A load consists of a resistors R1 = 55?, R2 = 46?, an inductor with inductance L1 = 115 mH, and a capacitor with capacitance C1 = 95 ?F as shown in Figure (a) below. Find the power factor of the load shown in Figure (a). A capacitor C2 is connected in parallel to the load to raise the power factor to 0.999 as shown in Figure (b). Find the capacitance value C2. f = 60 Hz.
As a base drawing, the floor plan can be saved and related information can be attached using the ____ command.
A. OFFSET B. FILLET C. XREF D. INSERT