Which of the following statements about zoned systems is correct?
A) One thermostat controls all the motorized valves in the system.
B) Zoned systems are only used for commercial buildings.
C) Water flow in zoned systems is controlled by a motorized valve.
D) Individual zone temperature control is not available in zoned systems.
C
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Because many drives need a fairly high starting torque and a constant speed under load, the ____________________ motor is suitable for these applications.
Fill in the blank(s) with the appropriate word(s).
Technician A says that copper jumper cables are better than aluminum jumper cables. Technician B says that aluminum jumper cables are better than copper jumper cables. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
Flash memory is considered to be
A) a smaller hard drive. B) for only temporary use. C) optical memory. D) a solid state storage device.
What design principles should you consider when designing something to be controlled by the hand?
What will be an ideal response?