Notes

Question 1

Where would you find expansion in pipe when a C.O.E is not giving where would you go

Answer 1

NOTE- 2.3.3.11.(2) page
Clause 2.3.3.9.
Example clause 2.3.3.9

Question 2

Linear Expansion of a pipe when no coefficient provided equation is what

Answer 2

Determine expansion of ABS pipe for a temperature from 10c• to 60• and a run of 20m
Delta T of 50c•
Chart says the expansion per 10m at a delta T is 47mm
Change length of 20m of pipe = 20 divided by 10 x 47mm = 94mm of expansion

Question 3

Classifications of WATER HARDNEES

Answer 3

Soft - 0-50mg/L of hardness
Moderate soft - 50-100 mg/l hardness
Moderate hard 100-150mg/l
Hard 150-200mg/l
Very hard water over 200mg/l

Question 4

What is a U value

Answer 4

Is the BTU/ft (squ) / 1f• rating of MANY MATERIALS
TOTAL WALL- DRYWALL, INSULATION, PLYWOOD.
All have different are values

Question 5

What does R value mean

Answer 5

It indicates the insulators rating in amount of time in hours 1btu would go through 1ft squared

Question 6

This to calculate U value

Answer 6

1 divided by R value will = U value

Question 7

What is the U value triangle

Answer 7

1 divided by U or R = u or R value
1
R value. U value

Question 8

Out door design tempature - 97.5% of the coldest ( specific to location)

Answer 8

…

Question 9

How many liters per us gallon

Answer 9

3.8 liters per us gallon

Question 10

How much does a cubic foot of water weigh

Answer 10

6.24 lbs