Questions 1-6 have four stoer options: A, B, C and D. Choose the correct answer from the anster options. 1. Decide whether each of these statements is True (T) or False (F). As part of the electronic control system for a car engine, a thermistor is to be used to monitor the air temperature. The signal processing circuit that could be used with the thermistor in order to give an electrical voltage output is i. A Wheatstone bridge. ii. A potential divider circuit. A. (i) T T B. (i) Ti) F C. (i) F (m) T D. G) F (1) F 2 Decide whether each of these statements is True (T) or False (F). It is proposed to monitor the exhaust temperature of a diesel engine by using a thermocouple. In order to give an output which is a few volts in size and which is independent of the temperature of the surrounding air temperature, the output from the thermocouple i. Requires amplification ii. Requires cold junction compensation. A. 6) T(m) T B. G) T F C. ) FT D. 3) F (1) F 3. Decide whether each of these statements is True (T) or False (F). It is proposed to monitor the transmission oil pressure in a car by using a diaphragm pressure gauge with the movement of the diaphragm monitored by means of a linear variable differential transformer (LVDT). 1. The output from the LVDT will be a resistance change which can be converted into a voltage change by a Wheatstone bridge. ii. The input to the LVDT is the displacement of the diaphragm. A. 6) T T B. TF CO) FT D. G) F F 4. Decide whether each of these statements is True (T) or False (F). The signal processing needed for a system where the output from a thermocouple is to be fed into a microprocessor/computer indudes i. A digital-to-analogue converter ii. Amplification A. 6) TWT B. G) T F C.) FT D. G) F F 5. Decide whether each of these statements is True (T) or False (F). to od to a The signal processing needed for a system where the output from an optical encoder microprocessor/computer includes i. An analogue-to-digital converter ii. A resistance-to-voltage converter