Amplifiers - Study guides, Class notes & Summaries

Hand Cupped Behind Ear - ANSWER -first Hearing Aid -increased sound by 5-8db -included horns,trumpets, speaking tubes 1892 - ANSWER -carbon amplifiers patent by Alexander Bell -marketed until 1930;first patent for a telephone type hearing instrument 1920 - ANSWER large vacuum tubes; not portable

CCC Module 3 Post Test Questions And Correct Answers Friendly units frame shapes are depicted as what type of shape? - ANSWER : Rectangle Which of the following are the two categories of military symbols? - ANSWER : Framed and Unframed What is your unit symbol if you are in an Armor Brigade? - ANSWER : Blue Rectangle with X on top and Circle inside. Which of the following echelon amplifiers represents a team or crew? - ANSWER : Hollow Circle with one diagonal line. Which of the fo...

Progression: Field Tech II - III Conventional (NCTI ) with Complete SolutionsProgression: Field Tech II - III Conventional (NCTI ) with Complete SolutionsProgression: Field Tech II - III Conventional (NCTI ) with Complete SolutionsWhat is the difference between the fiber-to-the-node (FTTN) and fiber-to-the-curb (FTTC) topologies? - ANSWER-An FTTC is allowed a smaller number of RF amplifiers

NCTI - Installer Book 2023/2024 EXAM. Which of the following will strengthen signals as they move farther away from the headend through the trunk express system? B) Distribution amplifiers. Which of the following describes a carrier wave? B) A wave with a much higher frequency than the input signal. Which of the following describes modulation? B) The reshaping of a carrier wave to include information contained by an input signal. Which of the following is the symbol for power? W = watt...

What is one reason why broadband cable operators install fiber-optic cable in stages instead of changing the infrastructure all at once? Answer Changing the infrastructure all at once would cause too many service disruptions. What is the difference between the fiber-to-the-node (FTTN) and fiber-to-the-curb (FTTC) topologies? Answer An FTTC is allowed a smaller number of RF amplifiers between the optical fiber and the customer premises. Which type of star topology used in a passive optical ...

What is one reason why broadband cable operators install fiber optic cables in stages instead of changing the infrastructure all at once Changing the infrastructure all at once would cause too many service disruptions What is the difference between FTTN and FTTC FTTC is allowed a smaller number of RF amplifiers between the optical fiber and the customer premises Which of these components is used in a PON(Passive Optical Network) Optical Splitters Which type of Star topology used in a PON(P...

NCTI Final Exam Maintance Tech 2-3 Conventional| New Update 2023/ 2024| Verified Questions and ANSWERs In a hybrid fiber/coax HFC fiber optic node, what are common voltages produced by DC power supplies? - ANSWER Common Voltage includes +5, +12 and +24 VDC Why do many optical nodes accept two independent power supplies? - ANSWER For redundant Powering of the node. What is an o...

Chapters 19, 20,21, 23, 24 Ch 19 Thorax and Lungs – Pages 405- 450 Lobes of the lungs • The right lung is shorter than the left lung and has three lobes, whereas the left lung has two. • Separated by fissures - double folds of pleura that divide the lung into lobes o Liver underneath Right lung o Heart bulges to the left- making Left lung narrower Symmetric expansion (Palpate) Technique: place both hands/thumbs pointing together at the level of T9 or T10- medially pinch a small f...

Which of the following are the two categories of military symbols? - Answer-Framed and Unframed What is your unit symbol if you are in an Armor Brigade? - Answer-Blue Rectangle with X on top and Circle inside. Which of the following echelon amplifiers represents a team or crew? - Answer-Hollow Circle with one diagonal line. Which of the following symbols is representing a target reference point? - Answer-Plus Symbol Your unit is depicted in an area on a map. Which symbol for an area ...

What is one reason why broadband cable operators install fiber-optic cable in stages instead of changing the infrastructure all at once? - ANSWER-HFC network architectures have been developed to enable broadband cable operators to make a gradual, or staged, transition to an all fiber-optic cable infrastructure. Which fiber-to-the-x topology has amplifiers in the coaxial cable portion of the network? - ANSWER-Additional RF amplifiers may be in the coaxial cable portion of the fiber-to-the-node...