Fineness Modulus

Q. Fineness modulus is -

1. The ratio of fine aggregates to coarse aggregate
2. The ratio of fine aggregates to total aggregate
3. An index which gives the mean size of the aggregates used in a mix
4. None of the above

Q. The coarse sand has fineness modulus in the range of

1. $2.2-2.4$
2. $2.4-2.6$
3. $2.6-2.9$
4. $2.9-3.2$

Q. If the fineness modulus of fine aggregate is 2.51, it can be graded as:

1. Fine sand
2. Medium sand
3. Very fine sand
4. None of the above

Q. The fineness modulus of fine aggregate is 2.78 and of coarse aggregate is 7.82 and the desired fineness modulus of mixed aggregate is 6.14 mixed with one part of coarse aggregate ?

1. 55%
2. 50%
3. 45%
4. 40%

Q. What is the percentage of the aggregate of fineness modulus 2.6 to be combined with coarse aggregate of fineness modulus 6.8 for obtaining combined aggregate of fineness modulus 5.4 ?

1. 30%
2. 40%
3. 50%
4. 60%

Q. If fineness modulus of aggregate is $4.1$ then it is

1. Fine sand
2. Coarse sand
3. All in aggregate
4. Coarse aggregate

Q. The fineness modulus of aggregates approximately

1. is directly proportional to the average size of the particles
2. is inversely proportional to the average size of the particles
3. indicates the water absorption of the aggregates
4. indicates the modulus of elasticity of the aggregates

Q. If $1000gms$ of sand is sieved through$4.75mm,2.36mm,1.18mm,600micron,300micronand150micron$ standard sieves and the weight's retained are $0gms,100gms,150gms,200gms,350gms,and500gms$ respectively, then the fineness modulus of the sand is