Question

Question (1) /30 Q1: (30 points), Show your work A- Multiple choice questions, select all the correct answer from the following [10Points]. (2points each) 1. Digital to Analog convertors are used in the design of prototype. Where do we use DAC? a) We must use DAC module between Arduino and LED. b) We must use DAC module between CPU and DC Motor drivers. c) We must use DAC with LCD d) We must use DAC if we have analog sensors. 2. Sensors are used in the design of circuits. Which statement is correct about sensors? a) The output of an active sensor is always a voltage change. b) Thermistor sensor is a self-generating sensor. c) A Sensor could have analog output and be passive. d) Sensors is a relay that do action as an actuator 3. Sensors can be classified according to their application, based primarily on: a) The physical quantity, property, or condition that is measured b) The design, property, or condition that is measured c) The dimensions, property, or condition that is measured d) The inaccurate reading output e) The price of the processor 4. Photovoltaic panel (PV) gets its name from the process of: a) Converting light to electricity b) Converting pressure to electricity c) Converting temperature to electricity Changing the variation of heat into electricity 5. Which temperature sensors is used for heat detection that produce low variation of voltage. a) Thermocouple can be used b) Thermistors can be used c) level petrol indicator can be used d) capacitive sensors can be used MCQ # Answers (a, b, c, ord) 1 2 3 4 5

Answer 1

.a) PV panel Converts light into voltage solution Digital to Analog Converters (2D.AC) - Uses. control the Brightnen of the LED. :)) else who.se using Motor control. So, If we want to must use the Dae then option (b) option (a) & (6) 2 Senson → These are sensi elements Output is mostly analog & be passive option (C) 3) Сем: » can be classified as per- Physical Quantity of measurement Cags- Temperatin Condition measurement prerived (bogs - pitot- tule ultrasonic) humidity g property of measurement (een Temperature, pressure level, flow) Energy Requirement (Egs - Active or panive) option (a) Celectricity) - option (a) → Thermiston Huge Difference in Resistance due to variation of temposatina Small variation of output Voltage Thermo couple option La