Engineering, 12.06.2020 13:57 frtjay
4) You have been contracted by a family to automate their home using your understanding on
electronic circuits.
a) The initial project you work on is a gate automation system that causes the garage door
to open when a car is approaching. You have a proximity sensor that can detect an
approaching vehicle and send a HIGH signal to a motor that lifts the gate. Is it necessary
to use a microcontroller in this system? In not more than 10 lines explain your answer.
(10 marks)
b) After using the system for a while, the family decides that the gate opens too slowly
and they want you to modify the system such that the speed at which the gate opens is
calculated based on the speed of the approaching vehicle. In this situation, would you
use a microcontroller? In not more than 10 lines, explain your answer. (10 marks)
Answers: 3
Another question on Engineering
Engineering, 04.07.2019 18:10
Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise
Answers: 3
Engineering, 04.07.2019 18:10
For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater
Answers: 3
Engineering, 04.07.2019 18:10
Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.
Answers: 2
Engineering, 04.07.2019 18:10
A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.
Answers: 2
You know the right answer?
4) You have been contracted by a family to automate their home using your understanding on
electron...
Questions
Mathematics, 21.12.2019 03:31
Mathematics, 21.12.2019 03:31
Computers and Technology, 21.12.2019 03:31
