Answer the following statement(s) true (T) or false (F)
1. Packaged variable speed drives generally operate on AC.
2. The AC service in industrial plants can not be converted to direct current for use with DC variable-speed controls.
3. The field of the DC generator can be reversed manually or automatically with a resulting reversal of the motor
rotation.
4. A controlling tachometer feedback signal may be driven by the DC motor driveshaft.
5. The generator field resistance can be changed manually or automatically by latching relays.
1. TRUE
2. FALSE
3. TRUE
4. TRUE
5. FALSE
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The IRC allows the floor live load of ____ areas to be reduced from 40 to 30 lb.
A. sleeping B. walking C. working D. storage
Answer the following statements true (T) or false (F)
1. Quality is just a vague concept and cannot be measured. 2. Companies need to monitor and improve their products and business practices daily in order to avoid competition. 3. Juran promoted four key dimensions of quality. 4. Deming believed that everyone must take an active role and responsibility in the outcome for consistent quality to occur.
Wood or steel frames installed between inner and outer wall forms to create window or door openings are called _____.
a. spacers b. holdouts c. bucks d. lintels
A potential transformer acts as a _____ transformer.
A. Step-up B. Step-down C. No answer text provided C. No answer text provided