Related Questions

Workability of concrete is inversely proportional to
A Time of transit
B Vater-cement ratio
C The air in the mix
D Size of aggregate
If A varies directly proportional to C and B also varies directly proportional to C, which one of the following is not correct ?
A $$\left( {A + B} \right)\alpha \,C$$
B $$\left( {A - B} \right)\alpha \,\frac{1}{C}$$
C $$\sqrt {AB} \,\alpha \,C$$
D $$\frac{A}{B} = {\text{constant}}$$
Which of the following increases the workability of concrete?
A Decreasing size of aggregates
B Increasing flaky aggregates
C Increasing size of aggregates
D Increasing fine aggregates
For concreting of heavily reinforced sections without vibration, the workability of concrete expressed as compacting factor should be
A 0.75 - 0.80
B 0.80 - 0.85
C 0.85 - 0.92
D Above 0.92
In order to obtain the best workability of concrete, the preferred shape of aggregate is
A Rounded
B Elongated
C Angular
D All of the above
For the supply of materials for concrete, form work reinforcing and placing of concrete, removal of form work and curing of concrete, number of bar(s) required on bar chart, is
A 1
B 2
C 3
D 4
একটি কণা t = 0 সময়ে স্থির অবস্থা থেকে যাত্রা শুরু করে। কণাটির ওপর প্রযুক্ত লব্ধি বল, সময় t এর সমানুপাতিক। কণাটির গতিশক্তি নিচের কোনটির সমানুপাতিক হবে? (A particle starts from rest at t = 0. The net force acting on the particle is proportional to time t. Its kinetic energy is proportional to which one of the following?)
A t2
B t3
C t
D t4
The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction is proportional to the product of active masses of the reacting substances. This is the
A Lewis-Randall rule
B Statement of Vant-Hoff equation
C Le-Chatelier's principle
D None of these
The probability of rolling any number of an wighted 6-sided die, with faces numbered 1 through 6, is directly proportional to the number rolled. What is the probability of getting 5, if the die is rolled only once?
A 1/6
B 5/6
C 5/16
D 5/21
The probability of rolling any number on a weight 6-sided die, with faces number 1 through 6, is directly proportional to the number rolled. What is the probability of getting 5, if the die is rolled only once?
A 1/6
B 5/6
C 5/16
D 5/21

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