128 + Mcqs in Properties Page 1 McqOptions

1.	The heme is held in place by a bond between
A.	the Fe2+ and cysteine
B.	the Fe3+ and histidine
C.	the Fe3+ and cysteine
D.	the Fe2+ and histidine
Answer» E.

Discussion

2.	When pO2 = Kd of myoglobin, the fractional saturation (YO2) is about
A.	0.1
B.	0.5
C.	0.9
D.	1.7
Answer» C. 0.9

Discussion

3.	The molecular formula for glycine is C2H5O2N. What would be the molecular formula for a linear oligomer made by linking ten glycine molecules together by condensation synthesis?
A.	C20H50O20N10
B.	C20H32O11N10
C.	C20H40O10N10
D.	C20H68O29N10
Answer» C. C20H40O10N10

Discussion

4.	Compression index developed by Casagrande is
A.	CV = 0.009 (LL + 10%)
B.	CV = 0.009 (LL - 10%)
C.	CV = 0.0009 (LL + 10%)
D.	CV = 0.0009 (LL - 10%)
Answer» C. CV = 0.0009 (LL + 10%)

Discussion

5.	Consider the following statements:1. When a soil sample is dried beyond its shrinkage limit, the volume of the soil slowly decrease2. The plastic limit is always lower than the liquid limit for any type of soil3. At the liquid limit, the soil behaves like a liquid and possesses no shear strength at all4. When subjected to drying, the volume of the soil remains unchanged once the water content of the soil goes below its shrinkage limitWhich of the above statements are correct?
A.	1 and 3 only
B.	1 and 4 only
C.	2 and 3 only
D.	2 and 4 only
Answer» E.

Discussion

6.	A well graded soil has a coefficient of curvature between
A.	10 to 12
B.	7 to 9
C.	4 to 6
D.	1 to 3
Answer» E.

Discussion

7.	A project engineer collects a sample of red soil having moist unit weight of a soil is 18.5 kN/m3. water content available is 22 % and the specific gravity of the solid of the soil is 2.85. Find the Void ratio. (Assume unit weight of water = 9.81 kN/m3)
A.	0.73
B.	1.91
C.	0. 84
D.	0.74
Answer» D. 0.74

Discussion

8.	Clay whose activity coefficient is more than 1.25 is termed as_________.
A.	fine clay
B.	inactive clay
C.	active clay
D.	normal clay
Answer» D. normal clay

Discussion

9.	From laboratory investigations, the liquid limit, plastic limit, natural moisture content and flow index of a soil specimen are obtained as 60%, 27%, 32% and 27, respectively. The corresponding toughness index and liquidity index of the soil specimen, respectively, are
A.	0.19 and 6.60
B.	6.60 and 0.19
C.	0.15 and 1.22
D.	1.22 and 0.15
Answer» E.

Discussion

10.	If ‘A’ = the maximum void ratio of the soil in the loosest condition, ‘B’ is the minimum void ratio of the soil in the densest condition and ‘C’ is the void ratio in the natural state, then the relative density is given by:
A.	(A – C) / (A – B)
B.	(A – B) / (A – C)
C.	(B – C) / (B – A )
D.	(B – A) / (B – C )
Answer» B. (A – B) / (A – C)

Discussion

11.	Moisture content in aggregates can be recorded continuously by ______.
A.	Calcium carbide method
B.	Wet measurement
C.	Drying method
D.	Electrical meter method
Answer» E.

Discussion

12.	A sample of sand has a volume of 1000 ml in its natural state. Its minimum volume when Compacted is 760 ml. When gently poured into a measuring cylinder, its possible maximum volume is 1320 ml. What is the relative density?
A.	56
B.	52
C.	58
D.	60
Answer» D. 60

Discussion

13.	Consider the following statements:Lime stabilization of soil leads to1. Decrease in shrinkage limit2. Increase in plastic limit3. Decrease in liquid limit4. Flocculation of clay particlesWhich of the above statements are correct?
A.	1, 2 and 3
B.	1, 2 and 4
C.	1, 3 and 4
D.	2, 3 and 4
Answer» E.

Discussion

14.	A soil sample is partially saturated, its natural moisture content was found to be 22% and bulk density 2 gms/c.c, the void ratio of the sample is?Assume Specific gravity of soil solids to be 2.65.
A.	0.3825
B.	0.6165
C.	0.8188
D.	0.9122
Answer» C. 0.8188

Discussion

15.	A soil sample has a porosity of 40 percent, its void ratio is
A.	0.06
B.	0.28
C.	0.4
D.	0.66
Answer» E.

Discussion

16.	Assuming specific gravity of soil solids to be 2.5 and dry unit weight of soil to be 19.62 kN/m3. what is the shrinkage limit?
A.	5%
B.	15%
C.	12.5%
D.	10%
Answer» E.

Discussion

17.	Flow index is:
A.	the rate at which a soil mass loses its shear strength with an increase in water content
B.	the rate at which a soil mass gains its shear strength with an increase in water content
C.	the rate at which a soil mass loses its shear strength with a decrease in water content
D.	the rate at which a soil mass gains its shear strength with a decrease in water content
Answer» B. the rate at which a soil mass gains its shear strength with an increase in water content

Discussion

18.	For a sandy soil with soil grains spherical in sphere and uniform in size, what is the theoretical void ratio?
A.	0.61
B.	0.71
C.	0.91
D.	0.81
Answer» D. 0.81

Discussion

19.	At liquid limit, the
A.	shear strength of soil is infinitesimal small
B.	shear strength is infinity
C.	soil is partially saturated
D.	shear strength is considerable
Answer» E.

Discussion

20.	A soil engineer collects a sample of soil having moist unit weight of a soil is 25 kN/m3, water content available is 50% and the specific gravity of soil solid is 2.55. Then, what is the value of porosity of soil mass?Assume unit weight of water to be 9.81 kN/m3
A.	66%
B.	33%
C.	30%
D.	40%
Answer» C. 30%

Discussion

21.	Plastic limit is the water content ______
A.	mixed in the soil to make it plastic
B.	removed from the soil to make it plastic
C.	below which the soil stops behaving as a plastic material
D.	above which the soil stops behaving as a plastic material
Answer» D. above which the soil stops behaving as a plastic material

Discussion

22.	If the liquid limit of soil is 25%, plastic limit is 15% and flow index is 12.5%, then its toughness index is:
A.	50%
B.	60%
C.	70%
D.	80%
Answer» E.

Discussion

23.	If plasticity index and percentage of grain size finer than 2 micron m of a clay are 25 and 15 respectively, then the activity ratio is
A.	1.67
B.	10
C.	5
D.	12.5
E.	7.5
Answer» B. 10

Discussion

24.	Identify the consistency limit corresponding to the smallest water content at which the soil is still in liquid state.
A.	Consistency index
B.	Shrinkage limit
C.	Plastic limit
D.	Liquid limit
Answer» E.

Discussion

25.	If the pores of the soil are completely full of air only, the soil is said to be ________.
A.	Wet soil
B.	Fully saturated soil
C.	Dry soil
D.	Partly saturated soil
Answer» D. Partly saturated soil

Discussion

26.	If the volume of voids is equal to the volume of soil solids, then the porosity and void ratio are respectively
A.	0 and 1
B.	1 and 0
C.	0.5 and 1
D.	1 and 0.5
Answer» D. 1 and 0.5

Discussion

27.	If the ratio of the plasticity index and the percentage of clay fraction finer than 2µ is 2, then the soil is classified as:
A.	Inactive
B.	Normal
C.	Active
D.	Hyperactive
Answer» D. Hyperactive

Discussion

28.	A dry soil has mass specific gravity of 1.4. If the specific gravity of solids is 2.8, then the void ratio will be
A.	0.4
B.	0.8
C.	1
D.	1.2
Answer» D. 1.2

Discussion

29.	According to standard test method ASTM D-4318, the moisture content (the liquid limit of soil) is determined by Casagrande’s liquid device, at which a groove closure of _______ occurs at _____ blows.
A.	11.7 mm, 20
B.	12.7 mm, 20
C.	11.7 mm, 25
D.	12.7 mm, 25
Answer» E.

Discussion

30.	Fundamental relationship between dry density (\({\gamma _d}\)), bulk density (γ) and water content (ω) is ________.
A.	γ = γd/(1+ω)
B.	γd = γ/(1+ ω)
C.	ω = γ/(1+γd)
D.	ω = γ/(1 - γd)
Answer» C. ω = γ/(1+γd)

Discussion

31.	_______ soil cannot achieve the plastic state of consistency.
A.	Clay
B.	Coarse grained
C.	Fine grained
D.	Silt
Answer» C. Fine grained

Discussion

32.	Group I list the type of gain or loss of strength in soils, Group II lists the property or process responsible for the loss or gain of strength in soilsGroup IP. Regain of strength with timeQ. Loss of strength due to cyclic loadingR. Loss of strength due to upward seepageS. Loss of strength due to remouldingGroup II1. Boiling2. Liquefaction3. Thixotropy4. SensitivityThe correct match between Group I and Group II is
A.	P-4, Q-1, R-2, S-3
B.	R-3, Q-1, R-2, S-4
C.	P-3, Q-2, R-1. S-4
D.	P-4, Q-2, R-1, S-3
Answer» D. P-4, Q-2, R-1, S-3

Discussion

33.	Given for a sample of a river sand:Void ratio at the densest state = 0.40Void ratio at the loosest state = 1.20Which one of the following correctly represents the relative density of a sample prepared with a void ratio of 1.0?
A.	12.5 %
B.	25%
C.	75%
D.	87.5 %
Answer» C. 75%

Discussion

34.	An earth embankment is to be constructed with compacted cohesionless soil. The volume of the embankment is 5000 m3 and the target dry unit weight is 16.2 kN/m3. Three nearby sites (see figure below) have been identified from where the required soil can be transported to the construction site. The void ratios (e) of different sites are shown in the figure. Assume the specific gravity of soil to be 2.7 for all three sites. If the cost of transportation per km is twice the cost of excavation per m3 of borrow pits, which site would you choose as the most economic solution? (Use unit weight of water = 10 kN/m3)
A.	Site X
B.	Site Y
C.	Site Z
D.	Any of the sites
Answer» B. Site Y

Discussion

35.	A saturated specimen of clay was immersed in mercury and displaced volume was 21.8 cc. The weight of the sample was 32.2 gm. After oven drying for 48 hours, weight reduced to 20.2 gm while volume came down to 11.6 cc. The shrinkage limit of the soil is
A.	7.9%
B.	8.0%
C.	8.9%
D.	9.8%
Answer» D. 9.8%

Discussion

36.	For a soil, if the sensitivity value varies from 2.0 to 4.0, then such a soil is classified as:
A.	Extra sensitive
B.	Sensitive
C.	Moderately sensitive
D.	Little sensitive
Answer» D. Little sensitive

Discussion

37.	A sample of soil has the following properties liquid limit = 45%, plastic limit = 25%, shrinkage limit = 17% natural moisture content = 30%. Then the consistency index of the soil is
A.	\(\frac{{15}}{{20}}\)
B.	\(\frac{{13}}{{20}}\)
C.	\(\frac{8}{{20}}\)
D.	\(\frac{5}{{20}}\)
Answer» B. \(\frac{{13}}{{20}}\)

Discussion

38.	A fine-grained soil has 60% (by weight) silt content. The soil behaves as semi-solid when water content is between 15% and 28%. The soil behaves fluid-like when the water content is more than 40%. The ‘Activity’ of the soil is
A.	3.33
B.	0.42
C.	0.3
D.	0.2
Answer» D. 0.2

Discussion

39.	A sample of dry soil is coated with a thin layer of paraffin and has mass of 460 g. It displaced 300 cc of water when immersed in it. The paraffin is peeled off and its mass was found to be 9 g. If the specific gravity of soil solids and paraffin are 2.65 and 0.9 respectively, the voids ratio of soil is nearly
A.	0.92
B.	0.71
C.	0.59
D.	0.48
Answer» C. 0.59

Discussion

40.	50 gm of oven dried soil of five sizes shown in the table is taken for hydrometer analysis and 1000 cc of suspension is prepared and filled in a jar up to 30 cm height.Particle size (mm)Weight (gm)0·0660·05200·03150·01550·0044If the specific gravity of soil solids is 2.7 and viscosity of soil water suspension is 1× 10-6 kN-sec/m2, the time required for all the particles to settle to the bottom of the jar is
A.	2 hr 16 min
B.	5 hr 37 min
C.	11 hr 55 min
D.	23 hr 50 min
Answer» C. 11 hr 55 min

Discussion

41.	Atterberg limit tests were carried on a certain soil with the following results:i. Liquid Limit = 45%ii. Plastic Limit = 30%iii. Shrinkage Limit = 15%The value of plasticity index is
A.	15%
B.	20%
C.	25%
D.	30%
Answer» B. 20%

Discussion

42.	In a Plasticity Chart, A-Line separates:
A.	Clays from Silt
B.	Clays from Sand
C.	Silt from Organic soils
D.	Silt from Gravel
Answer» B. Clays from Sand

Discussion

43.	If Yd = dry density, Y = bulk density and w = water content, then the correct relationship of these will be
A.	\(Y = \dfrac{Y_d}{1-w}\)
B.	\(Y_d = \dfrac{Y}{1+w}\)
C.	\(Y_d = \dfrac{Y}{1-w}\)
D.	\(Y = \dfrac{Yd}{1 + w}\)
Answer» C. \(Y_d = \dfrac{Y}{1-w}\)

Discussion

44.	A saturated soil has compression index of 0.28, the void at a stress 12 kN/m2 is 2.05 and its permeability is 35 × 103 mm/s. What is the change in void ratio if stress is increased to 21.6 kN/m2 ? (take log10 (1.8) as 0.255)
A.	0.0117
B.	0.0666
C.	0.0615
D.	0.0715
Answer» E.

Discussion

45.	Consider the following statements:1. Illite is the mineral largely responsible for the swelling and shrinkage behaviour of clayey soils.2. A differential free swell value of 55% indicates a soil with low degree of expansiveness.3. Higher the plasticity index of a soil, greater its swelling potential.4. A low shrinkage limit of a soil indicates possibility of swelling at low water content.Which of the above statements are correct?
A.	1 and 2 only
B.	2 and 3 only
C.	1 and 4 only
D.	3 and 4 only
Answer» E.

Discussion

46.	In comparison to Atterberg limits of normal soil, the expansive soils which of the following:(i) More liquid limit(ii) Less plastic limit(iii) Less shrinkage limit(iv) More volumetric shrinkageSelect the correct answers using the codes given below.
A.	(i), (ii), (iii) and (iv)
B.	(i), (iii) and (iv)
C.	(ii), (iii) and (iv)
D.	(i), (ii) and (iv)
Answer» B. (i), (iii) and (iv)

Discussion

47.	Number of phase in soil mass is
A.	3
B.	2
C.	1
D.	4
Answer» B. 2

Discussion

48.	If the water content of a fully saturated soil mass is 100%, the void ratio of the sample is:
A.	less than specific gravity of soil
B.	equal to specific gravity of soil
C.	greater than specific gravity of soil
D.	independent of specific gravity of soil
Answer» C. greater than specific gravity of soil

Discussion

49.	A soil sample has a void ratio of 0.5 and its porosity will be close to _________.
A.	50%
B.	66%
C.	100%
D.	33%
Answer» E.

Discussion

50.	Plasticity Index is defined as the:
A.	Ratio of the Plastic limit and the liquid limit
B.	Difference between the shrinkage limit and the liquid limit
C.	Ratio of the shrinkage limit and the liquid limit
D.	None of these
Answer» E.

Discussion

Explore topic-wise MCQs in C Sharp Programming.

The heme is held in place by a bond between

When pO2 = Kd of myoglobin, the fractional saturation (YO2) is about

The molecular formula for glycine is C2H5O2N. What would be the molecular formula for a linear oligomer made by linking ten glycine molecules together by condensation synthesis?

Compression index developed by Casagrande is

A well graded soil has a coefficient of curvature between

A project engineer collects a sample of red soil having moist unit weight of a soil is 18.5 kN/m3. water content available is 22 % and the specific gravity of the solid of the soil is 2.85. Find the Void ratio. (Assume unit weight of water = 9.81 kN/m3)

Clay whose activity coefficient is more than 1.25 is termed as_________.

From laboratory investigations, the liquid limit, plastic limit, natural moisture content and flow index of a soil specimen are obtained as 60%, 27%, 32% and 27, respectively. The corresponding toughness index and liquidity index of the soil specimen, respectively, are

If ‘A’ = the maximum void ratio of the soil in the loosest condition, ‘B’ is the minimum void ratio of the soil in the densest condition and ‘C’ is the void ratio in the natural state, then the relative density is given by:

Moisture content in aggregates can be recorded continuously by ______.

A sample of sand has a volume of 1000 ml in its natural state. Its minimum volume when Compacted is 760 ml. When gently poured into a measuring cylinder, its possible maximum volume is 1320 ml. What is the relative density?

Consider the following statements:Lime stabilization of soil leads to1. Decrease in shrinkage limit2. Increase in plastic limit3. Decrease in liquid limit4. Flocculation of clay particlesWhich of the above statements are correct?

A soil sample is partially saturated, its natural moisture content was found to be 22% and bulk density 2 gms/c.c, the void ratio of the sample is?Assume Specific gravity of soil solids to be 2.65.

A soil sample has a porosity of 40 percent, its void ratio is

Assuming specific gravity of soil solids to be 2.5 and dry unit weight of soil to be 19.62 kN/m3. what is the shrinkage limit?

Flow index is:

For a sandy soil with soil grains spherical in sphere and uniform in size, what is the theoretical void ratio?

At liquid limit, the

A soil engineer collects a sample of soil having moist unit weight of a soil is 25 kN/m3, water content available is 50% and the specific gravity of soil solid is 2.55. Then, what is the value of porosity of soil mass?Assume unit weight of water to be 9.81 kN/m3

Plastic limit is the water content ______

If the liquid limit of soil is 25%, plastic limit is 15% and flow index is 12.5%, then its toughness index is:

If plasticity index and percentage of grain size finer than 2 micron m of a clay are 25 and 15 respectively, then the activity ratio is

Identify the consistency limit corresponding to the smallest water content at which the soil is still in liquid state.

If the pores of the soil are completely full of air only, the soil is said to be ________.

If the volume of voids is equal to the volume of soil solids, then the porosity and void ratio are respectively

If the ratio of the plasticity index and the percentage of clay fraction finer than 2µ is 2, then the soil is classified as:

A dry soil has mass specific gravity of 1.4. If the specific gravity of solids is 2.8, then the void ratio will be

According to standard test method ASTM D-4318, the moisture content (the liquid limit of soil) is determined by Casagrande’s liquid device, at which a groove closure of _______ occurs at _____ blows.

Fundamental relationship between dry density (\({\gamma _d}\)), bulk density (γ) and water content (ω) is ________.

_______ soil cannot achieve the plastic state of consistency.

Given for a sample of a river sand:Void ratio at the densest state = 0.40Void ratio at the loosest state = 1.20Which one of the following correctly represents the relative density of a sample prepared with a void ratio of 1.0?

A saturated specimen of clay was immersed in mercury and displaced volume was 21.8 cc. The weight of the sample was 32.2 gm. After oven drying for 48 hours, weight reduced to 20.2 gm while volume came down to 11.6 cc. The shrinkage limit of the soil is

For a soil, if the sensitivity value varies from 2.0 to 4.0, then such a soil is classified as:

A sample of soil has the following properties liquid limit = 45%, plastic limit = 25%, shrinkage limit = 17% natural moisture content = 30%. Then the consistency index of the soil is

A fine-grained soil has 60% (by weight) silt content. The soil behaves as semi-solid when water content is between 15% and 28%. The soil behaves fluid-like when the water content is more than 40%. The ‘Activity’ of the soil is

Atterberg limit tests were carried on a certain soil with the following results:i. Liquid Limit = 45%ii. Plastic Limit = 30%iii. Shrinkage Limit = 15%The value of plasticity index is

In a Plasticity Chart, A-Line separates:

If Yd = dry density, Y = bulk density and w = water content, then the correct relationship of these will be

A saturated soil has compression index of 0.28, the void at a stress 12 kN/m2 is 2.05 and its permeability is 35 × 103 mm/s. What is the change in void ratio if stress is increased to 21.6 kN/m2 ? (take log10 (1.8) as 0.255)

In comparison to Atterberg limits of normal soil, the expansive soils which of the following:(i) More liquid limit(ii) Less plastic limit(iii) Less shrinkage limit(iv) More volumetric shrinkageSelect the correct answers using the codes given below.

Number of phase in soil mass is

If the water content of a fully saturated soil mass is 100%, the void ratio of the sample is:

A soil sample has a void ratio of 0.5 and its porosity will be close to _________.

Plasticity Index is defined as the:

According to standard test method ASTM D-4318, the moisture content (the liquid limit of soil) is determined by Casagrande’s liquid device, at which a groove closure of ___ occurs at _ blows.