EBK ELECTRIC MOTOR CONTROL
10th Edition
ISBN: 9780100784598
Author: Herman
Publisher: YUZU
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Textbook Question
Chapter 33, Problem 7SQ
Why are different motor connections shown for what appears to be the same motor in the various diagrams in Figure 33–2?
FIG. 33–2 Typical arrangements for four-speed, three-phase, two-winding motors.
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Find the Value of XL & X c
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Power to (ZL).
Choose the best answer for each:
1. What does SRAM use to store data?
。 a) Capacitors
ob) Latches
。 c) Flip-flops
od) Transistors
2. Which RAM type requires refreshing?
o a) SRAM
ob) DRAM
。 c) ROM
od) Flash
3. What type of memory retains data only while power is on?
a) ROM
。 b) EEPROM
o c) DRAM
od) Flash
4. How many addresses can a 15-bit address bus handle?
o a) 32k
•
b) 64k
o c) 16k
od) lk
5. What operation occurs when data is copied out of memory without erasing?
oa) Write
ob) Read
o c) Refresh
o d) Load
6. DRAM cells store bits using:
a) Flip-flops
。 b) Capacitors
c) Diodes
od) Resistors
7. The cache located inside the CPU is:
。 a) L2 cache
o b) LI cache
°c) ROM
od) HDD
8. SDRAM is synchronized with:
o a) Cache
ob) Data Bus
c) System Clock
od) Hard Disk
9. The bus that carries commands is called:
o a) Data Bus
b) Control Bus
o
c) Address Bus
o d) Logic Bus
10. What is the main use of SRAM?
o Disk storage
o Cache
o Main memory
o Registers
11. The smallest addressable unit in…
Q4: A cache memory is 128k × 16. How many bytes can it store?
Chapter 33 Solutions
EBK ELECTRIC MOTOR CONTROL
Ch. 33 - Prob. 1SQCh. 33 - Prob. 2SQCh. 33 - Prob. 3SQCh. 33 - What is the primary reason for using a compelling...Ch. 33 - What is the purpose of an accelerating relay?Ch. 33 - When is it most important to use decelerating...Ch. 33 - Why are different motor connections shown for what...Ch. 33 - How many windings are required for three-speed...
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