Explore topic-wise MCQs in Civil Engineering.

This section includes 24 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

Gradation affects the properties of an aggregate.

A. True
B. False
Answer» B. False
2.

For fine aggregates that is, sample passing through 4.75mm IS sieve, how much sample should be taken?

A. 5 kg
B. 1 kg
C. 2 kg
D. .5 kg
Answer» C. 2 kg
3.

For how long is the mechanical vibrator shaked?

A. 15-20 minutes
B. 5 minutes
C. 10-15 minutes
D. 30 minutes
Answer» B. 5 minutes
4.

A narrow gradation is also called:

A. Gap gradation
B. Uniform gradation
C. Rich gradation
D. Open gradation
Answer» C. Rich gradation
5.

______ is used for washing the soil portion passing through 4.75 mm sieve.

A. distilled water
B. 2g of sodium hexametaphosphate per litre of water
C. 10% of brine solution
D. kerosene
Answer» C. 10% of brine solution
6.

The soil portion passing through 4.75 mm sieve is washed for further sieve analysis.

A. True
B. False
Answer» B. False
7.

The percentage of soil retained on each sieve is calculated on the basis of ______

A. total mass
B. total weight
C. volume of sample
D. density of soil
Answer» B. total weight
8.

______ minutes of shaking is done for soil with small particles.

A. 2
B. 10
C. 15
D. 60
Answer» C. 15
9.

Sieving is performed by arranging the various sieves one over the other in the order of their mech openings.

A. True
B. False
Answer» B. False
10.

The receiver at the bottom of the assembly in sieve shaking machine is________

A. 4.75mm sieve
B. 425micron
C. pan
D. 75micron
Answer» D. 75micron
11.

The portion retained on______ IS sieve is termed as gravel fraction.

A. 4.75mm
B. 2mm
C. 425micron
D. 75micron
Answer» B. 2mm
12.

In Indian Standard (IS : 460-11962) the sieve sizes are given by_____

A. number of openings
B. number of openings per inch
C. size of aperture in mm
D. size of aperture in cm
Answer» D. size of aperture in cm
13.

Sieve analysis is meant for______

A. coarse-grained soils
B. fine-grained soils
C. coarse-grained gravel
D. silt
Answer» B. fine-grained soils
14.

FOR_HOW_LONG_IS_THE_MECHANICAL_VIBRATOR_SHAKED??$

A. 15-20 minutes
B. 5 minutes
C. 10-15 minutes
D. 30 minutes
Answer» B. 5 minutes
15.

Gradation affects the properties of an aggregate.$

A. True
B. False
Answer» B. False
16.

For_fine_aggregates_that_is,_sample_passing_through_4.75mm_IS_sieve,_how_much_sample_should_be_taken?$

A. 5 kg
B. 1 kg
C. 2 kg
D. .5 kg
Answer» C. 2 kg
17.

A narrow gradation is also called?

A. Gap gradation
B. Uniform gradation
C. Rich gradation
D. Open gradation
Answer» C. Rich gradation
18.

Which of the below is a limitation of performing sieve analysis?

A. Time consuming
B. Costly
C. Particle shape
D. Particle size
Answer» D. Particle size
19.

Under what circumstance is a wet sieve analysis carried out?

A. Sample is washed
B. Moisture content is high in sample
C. Sample contains organic matter
D. Very fine powdered sample
Answer» E.
20.

In how many ways can sieve analysis be carried out?

A. 5
B. 2
C. 3
D. 4
Answer» B. 2
21.

How is percentage retained on each sieve calculated?

A. w<sub>sample</sub>/w<sub>sieve</sub>
B. w<sub>sieve</sub>/w<sub>sample</sub>
C. w<sub>sieve</sub>-w<sub>sample</sub>
D. w<sub>sample</sub>-w<sub>sieve</sub>
Answer» C. w<sub>sieve</sub>-w<sub>sample</sub>
22.

What is a receiver in a sieve analyser?

A. Round pan on top
B. First sieve
C. Last sieve
D. Round pan at base
Answer» E.
23.

The aggregate sample for the sieve analysis is placed on:

A. Largest sieve
B. Smallest sieve
C. 40mm IS sieve
D. 4.75mm IS sieve
Answer» B. Smallest sieve
24.

The sieve sets for coarse aggregate ranges from:

A. 40-4.75mm
B. 20-4.75mm
C. 80-4.75mm
D. 100-4.75mm
Answer» D. 100-4.75mm