lol i neeeeeeeeeeeeeeeeeeeeeeeed pointssssssssssssssss
Answer:
a) 22.5number
b) 22.22 m length
Explanation:
Given data:
Bridge length = 500 m
width of bridge = 12 m
Maximum temperature = 40 degree C
minimum temperature = - 35 degree C
Maximum expansion can be determined as

where , \alpha is expansion coefficient
degree C
SO, 

number of minimum expansion joints is calculated as

b) length of each bridge

Explanation:
Note: Refer the diagram below
Obtaining data from property tables
State 1:

State 2:

State 3:

State 4:
Throttling process 
(a)
Magnitude of compressor power input


(b)
Refrigerator capacity



(c)
Cop:


True will be your answer have a great day
Answer:
d) 1 volt
Explanation:
The allowable range is 1 volt. The allowed tolerance (deviation from nominal) depends on what the nominal voltage is.