Engineering MCQ Quiz Hub

1. The maximum shear stress occurs on the filament which makes an angle with the horizontal plane equal to
30°
45°
60°
90°

2. For determining the moisture content of a soil sample, the following data is available Weight of container = 260 g, Weight of soil sample and = 320 g container, Weight of soil sample (dried) and = 310 g container. The moisture content of the soil sample, is
15%
18%
20%
25%

3. Buoyant unit weight equals the saturated density
multiplied by unit weight of water
divided by unit weight of water
plus unit weight of water
minus unit weight of water.

4. Pick up the correct statement from the following:
An unconfined compression test is a special case of triaxial compression test
An unconfined compression test is a special case of direct shear test
The confining pressure is maximum during an unconfined compression test
The cylindrical specimen of a soil is subjected to major principal stress till it fails due to shearing along the plane of the failure.

5. A partially saturated soil is classified as
one phase soil
two phase soil
three phase soil
four phase soil

6. Pick up the in-correct statement from the following: The soils which contain montmorillonite minerals
swell more when wet
shrink more when dry
possess high plasticity
possess high coefficient of internal coefficient

7. For determing the specific gravity of soil solids, using a pycnometer of 500 cc., the following data is available : Weight of dry empty pycnometer = 125 g Weight of dried soil and pycnometer = 500 g Weight of dried soil and distilled = 850 g water filled in pycnometer up to top The specific gravity of soil soilds, is
2
2.25
2.5
2.75

8. Pick up the correct statement from the following:
Kaolinite is most stable clay
Kaolinite shows a very little sign of swelling on wetting
Kaolinite when wet, becomes moderately plastic because negative electro magnetic charges on platelets attrack water
All the above.

9. A pile is being driven with a drop hammer weighing 1800 kg and having a free fall of 1.00 m. If the penetration with last blow is 5 mm, the load carrying capacity of the pile, -according to the Engineering News formula, is
100 tonnes
50 tonnes
20 tonnes
10 tonnes

10. Pick up the correct statement from the following :
To an agriculturist, soil is the substance existing on the earth's surface, which grows and develops plants
To a geologist, soil is the material in a relatively thin surface zone within which roots occur, and rest of the crust is termed as rock irrespective of hardness
To an engineer, soil is the unaggregated and uncemented deposits of minerals and organic particles covering the earth's crust
All the above.

11. The ratio of settlement at any time 't' to the final settlement, is known as
co-efficient of consolidation
degree of consolidation
consolidation index
consolidation of undisturbed soil.

12. The Westergaard analysis is used for
sandy soils
cohesive soils
stratified soils
clayey soils.

13. 260 g of wet soil was taken in a pycnometer jar of weight 400 g in order to find the moisture content in the soil, with specific gravity of soil particles 2.75. The weight of soil and remaining water filled in pycnometer without air bubbles was 1415 g and the weight of pycnometer filled with water alone was 1275 g. The moisture content in the soil is
24.20%
18.20%
53.80%
none of these.

14. The critical exist gradient of seepage water in soils, is
directly proportional to the voids ratio
inversely proportional to the specific gravity
directly proportional to the specific gravity
none of these.

15. Water content of a soil sample is the difference of the weight of the given sample at the given temperature and the weight determined after drying it for 24 hours at temperature ranging from
80° to 90°C
90° to 95°C
90° to 95°C
105° to 110°C

16. The ratio of the volume of voids to the total volume of the given soil mass, is known
porosity
specific gravity
void ratio
water content.

17. The compression index of a soil
decreases with an increase in the liquid limit
increases with an increase in the liquid limit
decreases with an increase in the plastic limit
is not related with plastic limit.

18. Pick up the correct statement from the following
The void space between the soil grains, is filled partly with air and partly with water
In perfectly saturated soil, the voids are completely filled with water
In dry soil, the voids are completely filled with air
all the above.

19. For shear strength, triaxial shear test is suitable because
it can be performed under all three drainage conditions
precise measurement of the pore pressure and volume change during the test is possible
stress distribution on the failure plane, is uniform
all the above.

20. The degree of saturation of the soil sample stated in Q. No, 216, is
60%
62%
64%
66%

21. Number of piles required to support a column, is
1
2
3
4

22. The soil moisture driven off by heat, is called
free water
hydroscopic water
gravity water
none of these.

23. If the specific gravity of a soil particle of 0.05 cm diameter is 2.67, its terminal velocity while settling in distilled water of viscosity, 0.01 poise, is
0.2200 cm/sec
0.2225 cm/sec
0.2250 cm/sec
0.2275 cm/sec

24. The direct shear test suffers from the following disadvantage:
Drain condition cannot be controlled
Pore water pressure cannot be measured
Shear stress on the failure plane is not uniform
The area under the shear and vertical loads does not remain constant throughout the test

25. You are given a sample of soil containing coarse grains to determine its water content, you will use
pycnometer
oven-drying method
calcium carbide method
alcohol method.

26. Pick up the incorrect statement from the following:
Compaction has no effect on the structure of a soil
Permeability decreases with increase in the dry density of a compacted soil
A wet side compacted soil is more compressible than a dry side compacted soil
Dry side compaction soils swell more when given access to moisture

27. The maximum load carried by a pile, when it continues to sink without further increase of load, is known as
ultimate load carrying capacity
ultimate bearing capacity
ultimate bearing resistant
all the above.

28. The soil which contains finest grain particles, is
coarse sand
fine sand
silt
clay.

29. The angle between the directions of the failure and the major principal plane, is equal to
90° + effective angle of shearing resistance
90° + half of the angle of shearing resistance
45° - half of the angle of shearing resistance
45° + half of the angle of shearing resistance.

30. The compressibility of clays, is caused due to:
expulsion of double layer water from in between the grains
sliping of particles to new positions of greater density
bending of particles as elastic sheets
all the above.

31. A phreatic line is defined as the line within a dam section below which there are
positive equipotential lines
positive hydrostatic pressure
negative hydrostatic pressure
negative equipotential lines

32. The ratio of the difference between the void ratio of the soil in its loosest state and its natural void ratio (e) to the difference between the void ratios in the loosest and fully dense state, is generally termed as
degree of density
relativity
density index
all the above.

33. Pick up the correct statement from the following:
The property of a soil that enables it to become stiff in a relatively short time on standing is called thixotropy
The ratio of shear strength in natural state to the remoulded shear strength under undrained conditions, is called degree of sensitivity.z
The difference between the undisturbed shear strength and remoulded shear strength is known remoulding loss
All the above.

34. According to the Indian Standards the specific gravity is the ratio of the unit weight of soil solids to that of water at a temperature of
17°C
23°C
27°C
30°

35. Pick up the correct statement from the following:
Illite bond is weaker than Kaolinite bond
Illite bond is stronger than montmorillonite bond
Illites do not swell when wet
All the above.

36. Determination of water content of a soil sample suspected to contain gypsum is made by drying the sample for longer period at a temperature not more than
60°C
80°C
100°C
110°C

37. Water formed transported soil is
alluvial
marine
lacustrine
loess.

38. A decrease in water content results in a reduction of the volume of a soil in
liquid state
plastic state
semi solid state
. all of these.

39. Pick up the correct statement from the following:
If the ratio of depth to width is less than 2, it is shallow foundation
If the ratio of depth to width is more than 2, it is deep foundation
If the ratio of the length to width is between 1 and 2, it is spread foundation
All the above.