Engineering, 21.10.2020 17:01 reneek272

The circuit functions as a sequential combination lock. To operate the lock, proceed as follows:1. Momentarily activate the RESET switch.2. Set the switches SWA, SWB, and SWC to the first part of the combination. Then momentarily toggle the ENTER switch back andforth.3. Set the switches to the second part of the combination, and toggle ENTER again. This should produce a HIGH at Q2 to open the lock. If the incorrect combination is entered in either step, the operator must start the sequence over. Analyze the circuit and determinethe correct sequence of combinations that will open the lock. b) When the combination lock is tested, it is found that entering the correct combination does not open the lock. A logic probe check shows that entering the correct first combination sets Q1 HIGH, butentering the correct second combination produces only a momentary pulse at Q2. Consider each of the following faults and indicate which one(s) could produce the observed operation. Explain each choice.(a) Switch bounce at SWA, SWB, or SWC.(b) CLR input of Q2 is open.(c) Connection from NAND gate 4 output to NAND gate 3 input is o

Answers: 1

Show answers

Another question on Engineering

Engineering, 03.07.2019 15:10

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

Answers: 1

Answer

Engineering, 04.07.2019 19:10

Abarometer contains mercury with a density of 13600 kg/m3. atmospheric conditions are 95.8 kpa and 20 °c at 20 °c, the vapor pressure of the mercury is 0.000173 kpa. the column of mercury will rise to a height of most nearly. select one: a)- 0.38 m b)- 0.82 m c)- 0.48 m d)- 0.72 m

Answers: 1

Answer

Engineering, 04.07.2019 19:10

Analyze the factors that influence the choice between the following pairs of processes to make the products indicated: i) sand casting versus die casting of an electric-motor housing ii) thread rolling versus machining of a bolt for high-strength application. (co3/c5)

Answers: 3

Answer

Engineering, 06.07.2019 03:30

Acubic shaped box has a side length of 1.0 ft and a mass of 10 lbm is sliding on a frictionless horizontal surface towards a 30 upward incline. the horizontal velocity of the box is 20 ft/s. determine how far up the incline the box will travel (report center of mass distance along the inclined surface, not vertical distance)

Answers: 1

Answer

You know the right answer?

The circuit functions as a sequential combination lock. To operate the lock, proceed as follows:1. M...

Questions