1. The difference between a sensor and a transducer is that in a transducer: A. no calibration is required for it to be used B. the measured variable can be converted to an alternative form C. electrical power is always needed D. no electrical power is required at any time 2. A is a safeguard mechanism for coordinating the activities of two or more devices and preventing one device from interfering with the operation of others. A. interrupt B. feedforward control C. adaptive control D. interlock 3. An actuator can also be classified as a transducer depending on whether the physical output has a relationship with the input signal. A. true B. false 4. A common design issue to consider when selecting a sensor for automation is: A. whether it is PNP or NPN B. power required for operation C. robustness D. all of the above. 11. An optical encoder is used to sense speed and position of a rotating shaft in servomotor driven worktable for feedback control. This type of control system uses an OPEN LOOP control system. A. true B. false 4. Which of the following is a good reason for automating a plant

1400 kg car has a speed of 27 m/s. if it takes 7 s to stop the car, what is the impulse and the average force acting on the car?

Connie has $660,000 she wants to save. if the fdic insurance limit per depositor, per bank, is $250,000, which of these way is distributing her money between three banks will guarantee that all of her money is insured ?

Fill in the blanks with the numbers is a measure of the resistance to flow. a high liquid has a high resistance to flow and flows slowly. the ancients thought everything in the world was made of 4 we now know that there are 94 naturally occurring and scientists have created another 24 i am certain they will create even more. honey flows slowly because it has a high to flowing. a can be separated by physical means because it contains more than one pure substance and 2 pure substances are not chemically bonded to each other. a cannot be separated by physical means. all matter is made up of all elements are with the same number of protons. if it is just a single or many bonded together, if all of them have the same number of protons, it is an element. in a piece of pure iron metal, all the are joined together, that piece of iron metal is called elemental iron. a single of iron is called elemental iron. a mixture has differences from place to place. we might need a microscope to see them or they might be obvious to the unaided eye. there are surfaces separating it into different phases. a mixture is the same everywhere. it is uniform. there are no surfaces separating it into different phases. if different kinds of atoms (different elements) are bonded together by their electrons, it is called a there are physical means of to isolate the different pure substances in a mixture and there are chemical means of to isolate the different elements in a compound. 1. element 2. compound 3. mixture 4. heterogeneous 5. homogeneous 6. pure substance 7. atoms 8. separation 9. viscosity 10. resistance