The Boussinesq settlement factor is given by _______

$F_B=\frac{1}{(1+(\frac{z}{a})^2)^\frac{1}{2}}$

$F_B=\frac{3}{2} \frac{1}{1+(\frac{z}{a})^2}$

$F_B=\frac{3}{2} \frac{1}{(1+(\frac{z}{a})^2)^\frac{5}{2}}$

$F_B=\frac{3}{2} \frac{1}{(1+(\frac{z}{a})^2)^\frac{1}{2}}$

$F_B=\frac{1}{(1+(\frac{z}{a})^2)^\frac{1}{2}}$

For a Poisson’s ratio of 0.5, the elastic strain ∆ is ___________

$∆=\frac{a^2}{2E(a^2+z^2)^\frac{1}{2}} $

$∆=\frac{pa^2}{2E(a^2+z^2)^\frac{1}{2}} $

$∆=\frac{3pa^2}{2E(a^2+z^2)^\frac{1}{2}} $

$∆=\frac{a^2}{2E(a^2+z^2)^\frac{1}{2}} $

The elastic strain ∆ of the subgrade is __________

$∆=\frac{p}{2}\left[\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+ \frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]$

$∆=\frac{p}{E}\left[(2-2μ^2)(a^2+z^2)^\frac{1}{2}-\frac{(1+μ) z^2}{(a^2+z^2)^\frac{1}{2}}+(μ+2μ^2-1)z\right]$

$∆=\frac{p}{2}\left[\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+ \frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]$

$∆=\frac{p}{2}\left[1-2μ-\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+ \frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]$

$∆=\frac{p}{2}\left[1+2μ-\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+ \frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]$

The vertical strain ∈z due to triaxial load (σz,σr,σt=σr) under the center of plate is _________

$∈_z=\frac{1}{E}[σ_z-23μ(σ_r)]$

$∈_z=\frac{1}{E}[σ_z-μ(σ_r)]$

$∈_z=\frac{1}{E}[σ_z-2μ(σ_r)]$

$∈_z=\frac{1}{E}[σ_z-23μ(σ_r)]$

$∈_z=\frac{1}{E}[σ_z-0.43μ(σ_r)]$

For a loaded circular area of radius ‘a’, μ=Poisson’s ratio, the horizontal radial stress is ________

$σ_r=\frac{p}{2} \left[1+2μ-\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}\right]$

$σ_r=\frac{p}{2} \left[\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+\frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]$

$σ_r=\frac{p}{2} \left[1-2μ-\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+\frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]$

$σ_r=\frac{p}{2} \left[1+2μ-\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+\frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]$

For the loaded circular area of radius a, the vertical stress on a vertical line passing through the center of the loaded area is __________

$σ_z=p\left[1+\left[\frac{1}{1+(\frac{a}{z})^2}\right]^\frac{3}{2}\right]$

$σ_z=p\left[1-\left[\frac{1}{1+(\frac{a}{z})^2}\right]^\frac{3}{2}\right]$

$σ_z=p\left[1+\left[\frac{1}{1+(\frac{a}{z})^2}\right]^\frac{3}{2}\right]$

$σ_z=p\left[\frac{1}{1+(\frac{a}{z})^2}\right]^\frac{3}{2}$

$σ_z=p\left[1-\left[\frac{1}{1+(\frac{a}{z})^2}\right]^\frac{5}{2}\right]$

The stress σz at any point (r,z) below the pavement is __________

$σ_z=\frac{3P}{2πz^2}\left[\frac{1}{1+(\frac{r}{z})^3}\right]^\frac{5}{2}$

$σ_z=\frac{3P}{2πz^2}\left[\frac{1}{(\frac{r}{z})^2}\right]^\frac{5}{2}$

$σ_z=\left[\frac{1}{1+(\frac{r}{z})^2}\right]^\frac{5}{2}$

$σ_z=\frac{3P}{2πz^2}\left[\frac{1}{1+(\frac{r}{z})^2}\right]^\frac{5}{2}$

The maximum stress occurs on __________

vertical plane passing through radial distance of three from the point of load application

vertical plane passing through radial distance of one from the point of load application

vertical plane passing through radial distance of two from the point of load application

vertical plane passing through the point of load application

vertical plane passing through radial distance of three from the point of load application

44 + Mcqs in Stresses Flexible Pavements in Highway Engineering Page 1 McqOptions

1.	In Burmister analysis, the subgrade layer is infinite only in vertical direction.
A.	True
B.	False
Answer» C.

Discussion

2.	In Burmister analysis, the subgrade layers are non-homogeneous and anisotropic.
A.	True
B.	False
Answer» C.

Discussion

3.	If F is a dimensionless factor, the defection in rigid plate of radius a is__________
A.	$∆=\frac{pa}{E} 1.5F$
B.	$∆=\frac{pa}{E} 1.18F$
C.	$∆=\frac{a^2}{2E} 1.18F$
D.	$∆=\frac{pa}{E} 2F$
Answer» B. $∆=\frac{pa}{E} 1.18F$

Discussion

4.	The Burmister’s influence coefficient is ________
A.	$C_B=\frac{σ_z}{p} $
B.	CB=σz-p
C.	CB=σz*p
D.	CB=σz+p
Answer» B. CB=σz-p

Discussion

5.	If the load is at the surface of subgrade, the elastic strain is ________
A.	$∆=\frac{pa}{E} 1.5$
B.	$∆=\frac{3pa^2}{2E} 2.5$
C.	$∆=\frac{a^2}{2E} 3$
D.	$∆=\frac{pa^2}{2E} 3.5$
Answer» B. $∆=\frac{3pa^2}{2E} 2.5$

Discussion

6.	If the load is at the surface of subgrade, the Boussinesq settlement factor is given by ________
A.	1.5
B.	2
C.	2.5
D.	3
Answer» B. 2

Discussion

7.	The Boussinesq settlement factor is given by _______
A.	$F_B=\frac{3}{2} \frac{1}{1+(\frac{z}{a})^2}$
B.	$F_B=\frac{3}{2} \frac{1}{(1+(\frac{z}{a})^2)^\frac{5}{2}}$
C.	$F_B=\frac{3}{2} \frac{1}{(1+(\frac{z}{a})^2)^\frac{1}{2}}$
D.	$F_B=\frac{1}{(1+(\frac{z}{a})^2)^\frac{1}{2}}$
Answer» D. $F_B=\frac{1}{(1+(\frac{z}{a})^2)^\frac{1}{2}}$

Discussion

8.	For a Poisson’s ratio of 0.5, the elastic strain ∆ in terms of Boussinesq settlement factor is __________
A.	$∆=\frac{pa}{E} F_B$
B.	$∆=\frac{3pa^2}{2E} F_B$
C.	$∆=\frac{a^2}{2E} F_B$
D.	$∆=\frac{pa^2}{2E} F_B$
Answer» B. $∆=\frac{3pa^2}{2E} F_B$

Discussion

9.	For a Poisson’s ratio of 0.5, the elastic strain ∆ is ___________
A.	$∆=\frac{3pa^2}{2E} $
B.	$∆=\frac{pa^2}{2E(a^2+z^2)^\frac{1}{2}} $
C.	$∆=\frac{3pa^2}{2E(a^2+z^2)^\frac{1}{2}} $
D.	$∆=\frac{a^2}{2E(a^2+z^2)^\frac{1}{2}} $
Answer» D. $∆=\frac{a^2}{2E(a^2+z^2)^\frac{1}{2}} $

Discussion

10.	The elastic strain ∆ of the subgrade is __________
A.	$∆=\frac{p}{E}\left[(2-2μ^2)(a^2+z^2)^\frac{1}{2}-\frac{(1+μ) z^2}{(a^2+z^2)^\frac{1}{2}}+(μ+2μ^2-1)z\right]$
B.	$∆=\frac{p}{2}\left[\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+ \frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]$
C.	$∆=\frac{p}{2}\left[1-2μ-\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+ \frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]$
D.	$∆=\frac{p}{2}\left[1+2μ-\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+ \frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]$
Answer» B. $∆=\frac{p}{2}\left[\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+ \frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]$

Discussion

11.	The vertical strain ∈z due to triaxial load (σz,σr,σt=σr) under the center of plate is _________
A.	$∈_z=\frac{1}{E}[σ_z-μ(σ_r)]$
B.	$∈_z=\frac{1}{E}[σ_z-2μ(σ_r)]$
C.	$∈_z=\frac{1}{E}[σ_z-23μ(σ_r)]$
D.	$∈_z=\frac{1}{E}[σ_z-0.43μ(σ_r)]$
Answer» C. $∈_z=\frac{1}{E}[σ_z-23μ(σ_r)]$

Discussion

12.	For a loaded circular area of radius ‘a’, μ=Poisson’s ratio, the horizontal radial stress is ________
A.	$σ_r=\frac{p}{2} \left[1+2μ-\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}\right]$
B.	$σ_r=\frac{p}{2} \left[\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+\frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]$
C.	$σ_r=\frac{p}{2} \left[1-2μ-\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+\frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]$
D.	$σ_r=\frac{p}{2} \left[1+2μ-\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+\frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]$
Answer» E.

Discussion

13.	For the loaded circular area of radius a, the vertical stress on a vertical line passing through the center of the loaded area is __________
A.	$σ_z=p\left[1-\left[\frac{1}{1+(\frac{a}{z})^2}\right]^\frac{3}{2}\right]$
B.	$σ_z=p\left[1+\left[\frac{1}{1+(\frac{a}{z})^2}\right]^\frac{3}{2}\right]$
C.	$σ_z=p\left[\frac{1}{1+(\frac{a}{z})^2}\right]^\frac{3}{2}$
D.	$σ_z=p\left[1-\left[\frac{1}{1+(\frac{a}{z})^2}\right]^\frac{5}{2}\right]$
Answer» B. $σ_z=p\left[1+\left[\frac{1}{1+(\frac{a}{z})^2}\right]^\frac{3}{2}\right]$

Discussion

14.	The stress σz at any point (r,z) below the pavement is __________
A.	$σ_z=\frac{3P}{2πz^2}\left[\frac{1}{1+(\frac{r}{z})^3}\right]^\frac{5}{2}$
B.	$σ_z=\frac{3P}{2πz^2}\left[\frac{1}{(\frac{r}{z})^2}\right]^\frac{5}{2}$
C.	$σ_z=\left[\frac{1}{1+(\frac{r}{z})^2}\right]^\frac{5}{2}$
D.	$σ_z=\frac{3P}{2πz^2}\left[\frac{1}{1+(\frac{r}{z})^2}\right]^\frac{5}{2}$
Answer» E.

Discussion

15.	The maximum stress occurs on __________
A.	vertical plane passing through radial distance of one from the point of load application
B.	vertical plane passing through radial distance of two from the point of load application
C.	vertical plane passing through the point of load application
D.	vertical plane passing through radial distance of three from the point of load application
Answer» D. vertical plane passing through radial distance of three from the point of load application

Discussion

16.	What is the most superior material used in the pavement?
A.	DBM
B.	WBM
C.	Tar
D.	Bitumen
Answer» E.

Discussion

17.	The layer which should have high modulus of elasticity is?
A.	Soil
B.	Sub grade
C.	Sub base
D.	Pavement
Answer» E.

Discussion

18.	What is the minimum deflection assumed in plate bearing test?
A.	0.25 mm
B.	0.25 cm
C.	2.5 cm
D.	2.5 m
Answer» C. 2.5 cm

Discussion

19.	The diameter of the plate in plate load test is _____________
A.	30 cm
B.	30 mm
C.	3 m
D.	0.3 m
Answer» B. 30 mm

Discussion

20.	The constant in rigid pavement design is _____________
A.	1.5
B.	1.18
C.	2
D.	3
Answer» C. 2

Discussion

21.	The unit of deflection is measured in _____________
A.	mm
B.	N mm
C.	joule
D.	watt
Answer» B. N mm

Discussion

22.	At surface the value of constant F is _____________
A.	1
B.	1.18
C.	1.5
D.	2
Answer» D. 2

Discussion

23.	The Poisson’s ratio of soil is assumed as _____________
A.	0.5
B.	0.6
C.	0.7
D.	0.8
Answer» B. 0.6

Discussion

24.	The ratio of the radius r/a=0 represents _____________
A.	Center of chart
B.	Center of load
C.	Center of stress
D.	Center of the pavement
Answer» B. Center of load

Discussion

25.	The z is a function of _____________
A.	P, a
B.	P, z
C.	P, a, z
D.	P only
Answer» D. P only

Discussion

26.	The ratio of z/a=0 represent the stress at _____________
A.	Top surface
B.	Bottom surface
C.	Middle
D.	Maximum stress point
Answer» B. Bottom surface

Discussion

27.	Boussinesq assumed the load as a _____________
A.	Point load
B.	UDL
C.	UVL
D.	Triangular load
Answer» B. UDL

Discussion

28.	Two elastic theory was developed by _____________
A.	Boussinesq
B.	Westergard
C.	Burnister
D.	McAdam
Answer» D. McAdam

Discussion

29.	Boussinesq assumed soil as _____________
A.	Homogeneous
B.	Heterogeneous
C.	Rigid
D.	Flexible
Answer» B. Heterogeneous

Discussion

30.	THE_UNIT_OF_DEFLECTION_IS_MEASURED_IN?$
A.	mm
B.	N mm
C.	joule
D.	watt
Answer» B. N mm

Discussion

31.	The diameter of the plate in plate load test is$
A.	30 cm
B.	30 mm
C.	3 m
D.	0.3 m
Answer» B. 30 mm

Discussion

32.	The constant in rigid pavement design is$
A.	1.5
B.	1.18
C.	2
D.	3
Answer» C. 2

Discussion

33.	In which layer system the modulus of elasticity will be equal for all layers?
A.	Single
B.	Double
C.	Triple
D.	Four layer
Answer» B. Double

Discussion

34.	The most superior material used in pavement is
A.	DBM
B.	WBM
C.	Tar
D.	Bitumen
Answer» E.

Discussion

35.	The layer which should have high modulus of elasticity is
A.	Soil
B.	Sub grade
C.	Sub base
D.	Pavement
Answer» E.

Discussion

36.	The minimum deflection assumed in plate bearing test is
A.	0.25 mm
B.	0.25 cm
C.	2.5 cm
D.	2.5 m
Answer» C. 2.5 cm

Discussion

37.	At surface the value of constant F i?
A.	1
B.	1.18
C.	1.5
D.	2
Answer» D. 2

Discussion

38.	The Poisson‚Äö√Ñ√∂‚àö√ë‚àö¬•s ratio of soil is assumed as$
A.	0.5
B.	0.6
C.	0.7
D.	0.8
Answer» B. 0.6

Discussion

39.	The ratio of the radius r/a=0 represents
A.	Center of chart
B.	Center of load
C.	Center of stress
D.	Center of the pavement
Answer» B. Center of load

Discussion

40.	The z is a function of
A.	P, a
B.	P,z
C.	P,a,z
D.	P only
Answer» D. P only

Discussion

41.	The ratio of z/a=0 represent the stress at
A.	Top surface
B.	Bottom surface
C.	Middle
D.	Maximum stress point
Answer» B. Bottom surface

Discussion

42.	Boussinesq assumed the load as a
A.	Point load
B.	UDL
C.	UVL
D.	Triangular load
Answer» B. UDL

Discussion

43.	Two elastic theory was developed by
A.	Boussinesq
B.	Westergard
C.	Burnister
D.	McAdam
Answer» D. McAdam

Discussion

44.	Boussinesq assumed soil as
A.	Homogeneous
B.	Heterogeneous
C.	Rigid
D.	Flexible
Answer» B. Heterogeneous

Discussion

3.	If F is a dimensionless factor, the defection in rigid plate of radius a is__________
A.	\(∆=\frac{pa}{E} 1.5F\)
B.	\(∆=\frac{pa}{E} 1.18F\)
C.	\(∆=\frac{a^2}{2E} 1.18F\)
D.	\(∆=\frac{pa}{E} 2F\)
Answer» B. \(∆=\frac{pa}{E} 1.18F\)

4.	The Burmister’s influence coefficient is ________
A.	\(C_B=\frac{σ_z}{p} \)
B.	CB=σz-p
C.	CB=σz*p
D.	CB=σz+p
Answer» B. CB=σz-p

5.	If the load is at the surface of subgrade, the elastic strain is ________
A.	\(∆=\frac{pa}{E} 1.5\)
B.	\(∆=\frac{3pa^2}{2E} 2.5\)
C.	\(∆=\frac{a^2}{2E} 3\)
D.	\(∆=\frac{pa^2}{2E} 3.5\)
Answer» B. \(∆=\frac{3pa^2}{2E} 2.5\)

7.	The Boussinesq settlement factor is given by _______
A.	\(F_B=\frac{3}{2} \frac{1}{1+(\frac{z}{a})^2}\)
B.	\(F_B=\frac{3}{2} \frac{1}{(1+(\frac{z}{a})^2)^\frac{5}{2}}\)
C.	\(F_B=\frac{3}{2} \frac{1}{(1+(\frac{z}{a})^2)^\frac{1}{2}}\)
D.	\(F_B=\frac{1}{(1+(\frac{z}{a})^2)^\frac{1}{2}}\)
Answer» D. \(F_B=\frac{1}{(1+(\frac{z}{a})^2)^\frac{1}{2}}\)

8.	For a Poisson’s ratio of 0.5, the elastic strain ∆ in terms of Boussinesq settlement factor is __________
A.	\(∆=\frac{pa}{E} F_B\)
B.	\(∆=\frac{3pa^2}{2E} F_B\)
C.	\(∆=\frac{a^2}{2E} F_B\)
D.	\(∆=\frac{pa^2}{2E} F_B\)
Answer» B. \(∆=\frac{3pa^2}{2E} F_B\)

9.	For a Poisson’s ratio of 0.5, the elastic strain ∆ is ___________
A.	\(∆=\frac{3pa^2}{2E} \)
B.	\(∆=\frac{pa^2}{2E(a^2+z^2)^\frac{1}{2}} \)
C.	\(∆=\frac{3pa^2}{2E(a^2+z^2)^\frac{1}{2}} \)
D.	\(∆=\frac{a^2}{2E(a^2+z^2)^\frac{1}{2}} \)
Answer» D. \(∆=\frac{a^2}{2E(a^2+z^2)^\frac{1}{2}} \)

10.	The elastic strain ∆ of the subgrade is __________
A.	\(∆=\frac{p}{E}\left[(2-2μ^2)(a^2+z^2)^\frac{1}{2}-\frac{(1+μ) z^2}{(a^2+z^2)^\frac{1}{2}}+(μ+2μ^2-1)z\right]\)
B.	\(∆=\frac{p}{2}\left[\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+ \frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]\)
C.	\(∆=\frac{p}{2}\left[1-2μ-\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+ \frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]\)
D.	\(∆=\frac{p}{2}\left[1+2μ-\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+ \frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]\)
Answer» B. \(∆=\frac{p}{2}\left[\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+ \frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]\)

11.	The vertical strain ∈z due to triaxial load (σz,σr,σt=σr) under the center of plate is _________
A.	\(∈_z=\frac{1}{E}[σ_z-μ(σ_r)]\)
B.	\(∈_z=\frac{1}{E}[σ_z-2μ(σ_r)]\)
C.	\(∈_z=\frac{1}{E}[σ_z-23μ(σ_r)]\)
D.	\(∈_z=\frac{1}{E}[σ_z-0.43μ(σ_r)]\)
Answer» C. \(∈_z=\frac{1}{E}[σ_z-23μ(σ_r)]\)

12.	For a loaded circular area of radius ‘a’, μ=Poisson’s ratio, the horizontal radial stress is ________
A.	\(σ_r=\frac{p}{2} \left[1+2μ-\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}\right]\)
B.	\(σ_r=\frac{p}{2} \left[\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+\frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]\)
C.	\(σ_r=\frac{p}{2} \left[1-2μ-\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+\frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]\)
D.	\(σ_r=\frac{p}{2} \left[1+2μ-\frac{2(1+μ)z}{(a^2+z^2)^\frac{1}{2}}+\frac{z^3}{(a^2+z^2)^\frac{3}{2}}\right]\)
Answer» E.

13.	For the loaded circular area of radius a, the vertical stress on a vertical line passing through the center of the loaded area is __________
A.	\(σ_z=p\left[1-\left[\frac{1}{1+(\frac{a}{z})^2}\right]^\frac{3}{2}\right]\)
B.	\(σ_z=p\left[1+\left[\frac{1}{1+(\frac{a}{z})^2}\right]^\frac{3}{2}\right]\)
C.	\(σ_z=p\left[\frac{1}{1+(\frac{a}{z})^2}\right]^\frac{3}{2}\)
D.	\(σ_z=p\left[1-\left[\frac{1}{1+(\frac{a}{z})^2}\right]^\frac{5}{2}\right]\)
Answer» B. \(σ_z=p\left[1+\left[\frac{1}{1+(\frac{a}{z})^2}\right]^\frac{3}{2}\right]\)

14.	The stress σz at any point (r,z) below the pavement is __________
A.	\(σ_z=\frac{3P}{2πz^2}\left[\frac{1}{1+(\frac{r}{z})^3}\right]^\frac{5}{2}\)
B.	\(σ_z=\frac{3P}{2πz^2}\left[\frac{1}{(\frac{r}{z})^2}\right]^\frac{5}{2}\)
C.	\(σ_z=\left[\frac{1}{1+(\frac{r}{z})^2}\right]^\frac{5}{2}\)
D.	\(σ_z=\frac{3P}{2πz^2}\left[\frac{1}{1+(\frac{r}{z})^2}\right]^\frac{5}{2}\)
Answer» E.

Explore topic-wise MCQs in Highway Engineering.

In Burmister analysis, the subgrade layer is infinite only in vertical direction.

In Burmister analysis, the subgrade layers are non-homogeneous and anisotropic.

If F is a dimensionless factor, the defection in rigid plate of radius a is__________

The Burmister’s influence coefficient is ________

If the load is at the surface of subgrade, the elastic strain is ________

If the load is at the surface of subgrade, the Boussinesq settlement factor is given by ________

The Boussinesq settlement factor is given by _______

For a Poisson’s ratio of 0.5, the elastic strain ∆ in terms of Boussinesq settlement factor is __________

For a Poisson’s ratio of 0.5, the elastic strain ∆ is ___________

The elastic strain ∆ of the subgrade is __________

The vertical strain ∈z due to triaxial load (σz,σr,σt=σr) under the center of plate is _________

For a loaded circular area of radius ‘a’, μ=Poisson’s ratio, the horizontal radial stress is ________

For the loaded circular area of radius a, the vertical stress on a vertical line passing through the center of the loaded area is __________

The stress σz at any point (r,z) below the pavement is __________

The maximum stress occurs on __________

What is the most superior material used in the pavement?

The layer which should have high modulus of elasticity is?

What is the minimum deflection assumed in plate bearing test?

The diameter of the plate in plate load test is _____________

The constant in rigid pavement design is _____________

The unit of deflection is measured in _____________

At surface the value of constant F is _____________

The Poisson’s ratio of soil is assumed as _____________

The ratio of the radius r/a=0 represents _____________

The z is a function of _____________

The ratio of z/a=0 represent the stress at _____________

Boussinesq assumed the load as a _____________

Two elastic theory was developed by _____________

Boussinesq assumed soil as _____________

THE_UNIT_OF_DEFLECTION_IS_MEASURED_IN?$

The diameter of the plate in plate load test is$

The constant in rigid pavement design is$

In which layer system the modulus of elasticity will be equal for all layers?

The most superior material used in pavement is

The layer which should have high modulus of elasticity is

The minimum deflection assumed in plate bearing test is

At surface the value of constant F i?

The Poisson‚Äö√Ñ√∂‚àö√ë‚àö¬•s ratio of soil is assumed as$

The ratio of the radius r/a=0 represents

The z is a function of

The ratio of z/a=0 represent the stress at

Boussinesq assumed the load as a

Two elastic theory was developed by

Boussinesq assumed soil as