How many registered plumbers in UK?

What is a machine made up from two or more simple machines? Which technological innovation allowed Americans to significantly change transportation systems and alter the physical landscape during the second half of the 19th century? What degrees is Array Azimuth specified as? Where to get circuit diagram for a remote control toy car model? What does the Ø symbol mean? Is there a blue carnation? What is the difference between programming and algorithm? What is the difference between variable transformer and ordinary transformer? What does the abbreviation 'DOE' stand for? What are the inventions for the 1970's? 1. A circuit for a remote to a model car racetrack has three resistors in series R1 20 ohms R2 12 ohms and R3 8 ohms. What is the equivalent resistance? In PCM system the SNR of the output signal increases? Progarm to delete previous node in linked list? What is the advantage of JAD sessions? Is the number 5 cylinder on a jaguar where is it in the front of the motor or the back of the motor? What is the code for mouseover menu in JavaScript? What happens when you disconnect a neutral at source in a three phase system? In electronics the term rectification refers to the process of changing an alternating current AC to what? How can you remove noise in a transmitter? What are the advantages of sequential search?