1.1 State what each of the sensor below measures: a) Tape float gauge b) Thermocouple c) Orifice plates d) Venturi tubes e) Manometer 1.2 In piping and instrumentation diagrams, process symbols, piping and connections are represented using several different symbols. State what each of the following symbols provided below represents: a) b) c) d) e) (1) f) 1.3 In general, what function does each of the following perform in a control loop? a) Controller b) Sensor (2) 2 c) Actuator (2) 1.4 One of the main tasks of chemical technicians is to use any sophisticated software program, such as Microsoft Visio, to come up with a process and instrumentation diagram of a plant. In order to do this, you need to use the correct symbols. Draw the process symbol for a: a) Gate valve (2) b) Ball mill (2) c) Shell and tube heat exchanger (2)