An acceptable grounding electrode is a(n) _____.
a. underground gas pipe
b. PVC water pipe
c. metal frame of a building which is effectively grounded
d. underground water pipe in direct contact with the earth for 6'
c. metal frame of a building which is effectively grounded
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Given: Small town with three transportation analysis zones, and origin-destination survey results. Provide a trip distribution calculation using the gravity model for two iterations; assume Kij = 1. The following table shows the number of productions and attractions in each zone:
The survey’s results for the zones’ travel time in minutes were as follows:
The following table shows travel time versus friction factor.
What will be an ideal response?
What are the relative humidity limits recommended for residences?
A. 20% to 40% B. 30% to 50% C. 40% to 60% D. 50% to 70%
Which type nut is used with a cotter pin?
A) Bead nut B) Nylon ring nut C) Castle nut D) King nut
Which of the following is NOT a condition of a belt on a blower motor being too loose?
A. reduced air flow B. belt slippage C. excessive noise D. motor overheating