Civil Engineering - Concrete Technology - Discussion
Discussion Forum : Concrete Technology - Section 3 (Q.No. 23)
23.
If the effective working time is 7 hours and per batch time of concrete is 3 minutes, the output of a concrete mixer of 150 litre capacity, is
Discussion:
20 comments Page 1 of 2.
Hadi said:
4 years ago
How @Rajiv.
Can you explain your answer?
Can you explain your answer?
(2)
Dorna said:
4 years ago
The minimum mixing time is 2 minutes and why the value 3 is min batching is mandatory? Please explain me.
Rakesh dev said:
4 years ago
(7* 60)/3 = 140.
140 * 150 = 21000ltr.
90% efficiency.
(21000 * 90)/100 = 18,900ltr.
140 * 150 = 21000ltr.
90% efficiency.
(21000 * 90)/100 = 18,900ltr.
(10)
Sailendra said:
5 years ago
Why 90% assumed efficiency? Please explain.
(1)
Shrikant Datey said:
6 years ago
Effective working time = 420 minutes (7 hours).
Batching time = 3 minutes.
No : of batching = 420/3 = 140.
Output concrete for 1 batching = 150 liters.
For 140 batching = 150*140 = 21000 liters. (This is the actual value).
But I think here they consider the efficiency of the batch plant as 90%.
= 21000 * 90/100 = 18900 liters.
Batching time = 3 minutes.
No : of batching = 420/3 = 140.
Output concrete for 1 batching = 150 liters.
For 140 batching = 150*140 = 21000 liters. (This is the actual value).
But I think here they consider the efficiency of the batch plant as 90%.
= 21000 * 90/100 = 18900 liters.
(10)
Mr. Jena said:
6 years ago
Effective working time = 420 minutes (7 hours).
Batching time = 3 minutes.
No : of batching = 420/3 = 140.
Output concrete for 1 batching = 150 liters.
For 140 batching = 150*140 = 21000 liters. (This is the actual value).
But I think here they consider the efficiency of the batch plant as 90%.
= 21000*90/100 = 18900 liters.
Batching time = 3 minutes.
No : of batching = 420/3 = 140.
Output concrete for 1 batching = 150 liters.
For 140 batching = 150*140 = 21000 liters. (This is the actual value).
But I think here they consider the efficiency of the batch plant as 90%.
= 21000*90/100 = 18900 liters.
(4)
TUHIN said:
6 years ago
100% efficiency can't possible for a machine.
Rajiv said:
7 years ago
@All.
It is;
54x7/3=126,
Then 126x150 =18900.
It is;
54x7/3=126,
Then 126x150 =18900.
Sumit gawande said:
7 years ago
3*150 = 450.
7*60 = 420.
420*450 = 189000 l.
7*60 = 420.
420*450 = 189000 l.
Saka laka said:
8 years ago
Because out of 3 min, 30 sec is considered as Material filing and water filling.
(1)
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