Civil Engineering - Building Materials - Discussion

45. 

If water required for 1 bag of cement is 30 litres, the water cement ratio is :

[A]. 0.40
[B]. 0.50
[C]. 0.60
[D]. None of these.

Answer: Option C

Explanation:

No answer description available for this question.

Ramniwas Manda said: (Jun 22, 2013)  
Water cement ratio = wt.of water/wt. of cement.

= 30/50 = 0.60.

Sachin said: (Jan 24, 2015)  
Volume of 1 bag cement is 35 l.
Option D is correct.
= 30/35.

Gautam said: (May 28, 2015)  
Volume of 1 bag cement is 50. So option C is correct.

Shanker Lal Meghwar said: (Jun 17, 2015)  
Volume of 1 bag of cement = 50 Kg or 35 liters.

Given amount of water is in liters i.e. 30 liters.

For finding W/C ratio units must be homogeneous.

Therefore:

W/C = 30/35 = 0.86.

So, option "D" is correct.

Deva Aj said: (Sep 13, 2015)  
Both the materials should be considered in same units.

Therefore, volume of 1 bag of cement in liters is = 35.

W/C = 30/35 (in liters).

= 0.86.

Option "D" is the correct answer.

Srinivas said: (Oct 14, 2015)  
Volume of one bag = 0.035 cu.m.

Patel Siddharth said: (Nov 26, 2015)  
Cement 1 bag weight 50 kg.

Water is 30 liter.

W(Water)/C(Cement) = 30/50 = 0.6.

Option 'C' is the correct answer.

Vikas said: (Jan 28, 2016)  
30 liter/35 liter = 0.86.

Rhijul Sood said: (Mar 17, 2016)  
Wt of 30l water = density * Volume = 1000 kg/m3 * 30*10^-3 m3 = 30 kg.

W/c = 30/50 = 0.6.

Zahir said: (May 30, 2016)  
Water cement ratio is based on Weight Ratio. So we would find the 30 litres = 30 kg and that's why the answer is C.

Samadhan Chaudhari said: (Nov 2, 2016)  
Guys, 35 ltr is the volume of 1 bag of cement.
The water cement ratio is calculated by considering the weight of both materials.
So the weight of 1 cement bag is 50kg.
And weight of water is 30 litre equal to 30kg.

Ratio will be 30/50 = 0.6

Abhiraj said: (Nov 15, 2016)  
Hi, The Correct answers is 0.6.

Water cement ratio = weight of water/ weight of cement.

The weight of 1-litre water is 1 kg.
So, 30 liter = 30 kg.
Weight of 1 bag cement (volume = 35 liter) is 50kg.

Therefore, W/c ratio = 30/50 = 0.6.

Ranjan said: (Dec 26, 2016)  
C is the correct answer. I agree.

Safee said: (Dec 27, 2016)  
1 BAG = 35 LITRES = 50 KG.
For finding W/C ratio units,
W/C = 30/35 (in liters).
= 0.86.

Option "D" is the correct answer.

Rohit Kumar said: (Jan 23, 2017)  
Only option C is correct, because normal range wc ratio is 0.4 to 0.6.

Mudasir said: (Feb 16, 2017)  
Can anybody will confirm me what is the correct answer. 0.6 or 0.86?

I read book, some are saying water cement ratio is measure of wt of water/ wt of cement, and some are saying wt of cement/ volume of cement.

So, if anybody knows please post it.

Ankush said: (Mar 30, 2017)  
C is the correct answer.

I agree with the given answer.

Anil Kumar said: (Mar 31, 2017)  
The water cement ratio is taken as ( volume of water/weight of cement).
So, the answer given is correct.

Sudhakar said: (Apr 22, 2017)  
w/c ratio should be in units of weights only.
Hence, 30lit water=30kg of water.
50kg cement.
W/c = 30/50 = 0.6.

Hir said: (May 2, 2017)  
1lit = 1kg so w/c ratio is;

W/c = 30/50 = 60.

Souvik Sadhukhan said: (May 9, 2017)  
WE KNOW W/C RATIO = WEIGHT OF WATER / WEIGHT OF CEMENT.

AND WE ALSO KNOW 30 LTR WATER = 30 KG WATER.

THEN W/C RATIO = 30/50 = 0.6.

Vijay Vikram said: (Aug 3, 2017)  
Water cement ratio = wt.of water/wt. of cement.
= 30/50 = 0.60,
Option c is correct.

Vikas said: (Aug 26, 2017)  
Since, the density of water =1kg/L.

(W/C) the ratio is taken in weight not in volume.

Wt of 30L of water = 30 kg.
And, w/c =30/50=0.6.
So, C is correct.

Sandeep Singh Yadav said: (Jan 25, 2018)  
1 bag cement= 34.5L. Again so w:c= 30L/34.5L, = 0.86.
So Correct option is :-D.

Govardhan said: (Apr 15, 2018)  
Here ask only water-cement ratio but you have said density of 1bag of cement so, water cement ratio of 1bag cement is 0.60,
1bag=50kg,
50/30=0.60.

Ramesh said: (Apr 22, 2018)  
30/50 = 0.60 is the correct answer.

Hariman Meena said: (Jun 2, 2018)  
C is right.

Because of a density of water is 1kg/lit.

So 30kg=30Lit.

Amit Bhandari said: (Sep 27, 2018)  
Since Water cement ratio = weight of water/weight of cement.

(Note: the unit of weight is kg and unit of volume is lit)
The weight of 1 bag (vol -35 lit or 0.035 CuM) of cement is= 50kg.
The weight of 30 lit of water = 30 kg (since the density of water is 1kg/lit).
Therefore, W/C ratio = 30 kg(weight)/50 kg (weight) = 0.6 (Answer).

Option 'C' is the right answer!

Deepak said: (Oct 16, 2018)  
The density of water is 1000kg/m^3.
And 1 m^3 equals to 1000 litres.
1 litre of pure water has a weight of 1 kg.

We know that the density of pure water is 1000 k g/m 3.
It means 1 cubic meter of pure water has a weight of 1000 kg.

Cb Singh said: (Dec 7, 2018)  
Water cement ratio is weight ratio of water & cement.

Vicky said: (Dec 24, 2018)  
The water-cement ratio is the ratio of the weight of water to the weight of cement used in a concrete mix.

So 30/50=0.6 (option C is correct).

Babita said: (Jan 9, 2019)  
w/c ratio is the weight of water to weight of cement not the volume of cement.

So, 30/50 =0.60.

1 bag of cement is 50 kg & 35 ltr.

Sunil said: (Jul 9, 2019)  
W/c ratio is measured in kg/l, so option C is correct.

Sable said: (Jul 25, 2019)  
W, c ratio is 60.

Chetan said: (Nov 14, 2019)  
W/c ratio is measured in lit/kg.

Answer must be C.

Arvind Singh Rawat said: (Jan 23, 2020)  
Density of water =1000kg/m3.
volume of water = 30 litres = 30/1000 m3.
weight of water = 1000 x 30 /1000 = 30kg.
W/C ratio = 30/50 = 0.6

So, option C is correct.

Akshay Kumar P said: (Mar 3, 2020)  
Wt of 1bag cement = 50 kg.
Wt of 30litre water = 30 kg.
Wc ratio = wt of water /wt of cement = 30/50.
Wc ratio = 0.6.

Santosh said: (Dec 26, 2020)  
Great, Thanks @Abhiraj.

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