EE113-FE Electrical and Computer Exam 2024

sensor - Answer-A data acquisition system includes ________ to measure a variable and give an output which depends in some way on the value of the variable and which can be used by the rest of the measurement system to give a value to it. cabling and piping testing - Answer-_______ is the testing of all instrument cables for continuity and insulation resistance prior to the connection of any instruments or elements of the system. When the system involves pneumatic lines the testing involves blowing through with clear, dry, air prior to connection and pressure testing to ensure the lines are leak free. vortex flow sensor - Answer-SENSOR: The ________ with the vortex frequency measured by means of a semiconductor pressure sensor. direct memory access - Answer-A faster system is to transfer the acquired data directly from the board to memory without involving the microprocessor. The is termed ________. hot-wire anemometer - Answer-SENSOR: One method that is used with cars is the ________. plug-in board - Answer-The ________ is controlled by the computer and the digitized data transferred from the board to the memory of the computer. X, y - Answer-In Mitsubishi PLCs, the notations of the addresses of inputs and outputs precede by a/an ___ and a/an ___ mark, respectively. instrumentation amplifier - Answer-The differential amplifier is the simplest form of what is often termed a/an ________. Thermistors - Answer-________ are semiconductors temperature sensors made from mixtures of metal oxides, such as those of chromium, cobalt, iron, manganese and nickel. compensation circuit - Answer-To maintain one junction of a thermocouple at zero degree Celsius, it needs to be immersed in a mixture of ice and water. This, however, is often not convenient and a ________ is used to provide an e.m.f. which varies with the temperature of the cold junction in such a away that when it is added to the thermocouple e.m.f. it generates a combined e.m.f. which is the same as would have been generated if the cold junction had been at zero degree Celsius. reed switch - Answer-This consists of two overlapping, but not touching, strips of a spring magnetic material sealed in a glass or plastic envelope. When a magnet or current carrying coil is brought close to the switch, the strips become magnetised and attract each other. The contacts then close. What is this another form of a non-contact switch sensor called?