ITPEC IP October 2025 Question 56
ITPEC IP October 2025 — Question 56 of 100
The minimum time is 223 seconds — movement and manual operations must be performed by the person, while device processing can overlap them.
At the PC, power-on takes 3 seconds and its automatic login-screen startup then runs for 150 seconds, ending at t = 153. During it, walk 60 seconds, power on the printer for 3 seconds, and start its 60-second automatic process at t = 66. Walk back during that process, arriving at t = 126. Wait until t = 153, log in for 10 seconds, then let the application start for 60 seconds: 153 + 10 + 60 = 223.
Answer (a)
Why not others: (b), (c), and (d) leave avoidable idle time or add automatic and movement periods sequentially even though the problem permits them to overlap.
Key rule: In scheduling, preserve each device's dependency order but overlap unattended processing with independent movement or work.
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