Question: A 250-V, 4-pole, wave-wound d.c. series motor has 782 conductors on itsarmature. It has armature and series field resistance of 0.75 ohm. The motor takesa current of 40 A. Estimate its speed and gross torque developed if it has a flux per pole of 25 mWb Answer: Step 1 Mechanical Engineering homework question answer, step 1, image 1 Mechanical Engineering homework question answer, step 1, image 2 Step 2 Mechanical Engineering homework question answer, step 2, image 1 Step 3 Mechanical Engineering homework question answer, step 3, image 1

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resource-allocation graph -> how to resource allocated for graph.

set of vertices(V)->

1. set of process {P ₁ ,P ₂ ,P _3, P ₄ ,P _5.... P _n }

2. set of resources{R ₁ ,R ₂ ,R ₃ ,R ₄ ,R ₅ ....R _n }

set of edges->

1. P _i  R _j (request edge)

2. R _j  P _i (assignment edge)

resource type=  (squre)

process type=  (circle)

in above question resources allocation graph is

process P = {P ₁ ,P ₂ ,P _3, P ₄ ,P ₅ }

resources R= {R ₁ ,R ₂ ,R ₃ ,R ₄ ,R ₅ }

no cycle are create so not go to deadlock process.

wait for graph -> use only process

if P ₁ is waiting for R ₃ and R ₃ is assigned for P ₄ then we draw only P ₁  P ₄ .

if P 2 is waiting for R ₃ and R ₃ is assigned for P ₄ then we draw only P 2  P ₄ .

etc....

no cycle are create so not go deadlock and say system is safe state.