A joint of a frame is subjected to three tensile force P, Q and R equally inclined to each other. If P is 10 tonnes, the other forces will be

Q and R each is equal to 10 tonnes.

A composite member shown in below figure was formed at 25°C and was made of two materials a and b. If the coefficient of thermal expansion of a is more than that of b and the composite member is heated upto 45°C, then

a will be in tension and b in compression

a will be in compression and b in tension

948 + Mcqs in Strength of Materials in Surveying Page 15 McqOptions

701.	A member which is subjected to reversible tensile or compressive stress may fail at a stress lower than the ultimate stress of the material. This property of metal, is called
A.	plasticity of the metal
B.	elasticity of the metal
C.	fatigue of the metal
D.	workability of the metal.
Answer» D. workability of the metal.

Discussion

702.	A short masonry pillar is 60 cm x 60 cm in cross-section, the core of the pillar is a square whose side is
A.	17.32 cm
B.	14.14 cm
C.	20.00 cm
D.	22.36 cm
Answer» C. 20.00 cm

Discussion

703.	A joint of a frame is subjected to three tensile force P, Q and R equally inclined to each other. If P is 10 tonnes, the other forces will be
A.	Q = 10 tonnes and R = zero
B.	R + 10 tonnes and Q = zero
C.	Q + R = 10 tonnes
D.	Q and R each is equal to 10 tonnes.
Answer» E.

Discussion

704.	The moment diagram for a cantilever carrying a concentrated load at its free end, will be
A.	triangle
B.	rectangle
C.	parabola
D.	cubic parabola.
Answer» B. rectangle

Discussion

705.	If b is the width of a plate joined by diamond riveting of diameter d, the efficiency of the joint is given by
A.	A
B.	B
C.	C
D.	D
Answer» C. C

Discussion

706.	The B.M. diagram of the beam shown in below figure, is
A.	a rectangle
B.	a triangle
C.	a trapezium
D.	a parabola
Answer» B. a triangle

Discussion

707.	If S is the shear force at a section of an I-joist, having web depth d and moment of inertia I about its neutral axis, the difference between the maximum and mean shear stresses in the web is,
A.	A
B.	B
C.	C
D.	D
Answer» E.

Discussion

708.	A solid circular shaft of diameter d is subjected to a torque T. The maximum normal stress induced in the shaft, is
A.	A
B.	B
C.	C
D.	D
Answer» C. C

Discussion

709.	If p is the internal pressure in a thin cylinder of diameter d and thickness t, the developed hoop stress, is
A.	A
B.	B
C.	C
D.	D
Answer» B. B

Discussion

710.	The energy stored in a beam of length L subjected to a constant B.M. is
A.	A
B.	B
C.	C
D.	D
Answer» B. B

Discussion

711.	The maximum compressive stress at the top of a beam is 1600 kg/cm² and the corresponding tensile stress at its bottom is 400 kg/cm² . If the depth of the beam is 10 cm, the neutral axis from the top, is
A.	2 cm
B.	4 cm
C.	6 cm
D.	8 cm
Answer» E.

Discussion

712.	The B.M. of a cantilever beam shown in below figure at A, is
A.	zero
B.	8 Tm
C.	12 Tm
D.	20 Tm
Answer» B. 8 Tm

Discussion

713.	The slenderness ratio of a vertical column of a square cross-section of 2.5 cm sides and 300 cm length, is
A.	200
B.	240
C.	360
D.	416
Answer» E.

Discussion

714.	When loads are applied proportionately to a frame structure containing its members in one plane, the structure is called
A.	grid frame
B.	plane frame
C.	space frame
D.	truss frame.
Answer» D. truss frame.

Discussion

715.	Maximum deflection of a
A.	A
B.	B
C.	Both C and D
D.	All of these
Answer» E.

Discussion

716.	The slenderness ratio of a vertical column of square cross- section of 10 cm side and 500 cm long, is
A.	117.2
B.	17.3
C.	173.2
D.	137.2
Answer» D. 137.2

Discussion

717.	A steel rod of 2 cm diameter and 5 metres long is subjected to an axial pull of 3000 kg. If E = 2.1 x 10⁶, the elongation of the rod will be
A.	2.275 mm
B.	0.2275 mm
C.	0.02275 mm
D.	2.02275 mm.
Answer» C. 0.02275 mm

Discussion

718.	A rectangular log of wood is floating in water with a load of 100 N at its centre. The maximum shear force in the wooden log is
A.	50 N at each end
B.	50 N at the centre
C.	100 N at the centre
D.	none of these.
Answer» D. none of these.

Discussion

719.	The tension coefficient of any member is
A.	force divided by the length
B.	tension divided by the length
C.	tension per unit area
D.	tension in the member.
Answer» C. tension per unit area

Discussion

720.	The point of contraflexture occurs in
A.	cantilever beams only
B.	continuous beams only
C.	over hanging beams only
D.	all types of beams
Answer» D. all types of beams

Discussion

721.	When a rectangular beam is loaded longitudinally, shear develops on
A.	bottom fibre
B.	top fibre
C.	middle fibre
D.	every-horizontal plane.
Answer» E.

Discussion

722.	To ascertain the maximum permissible eccentricity of loads on circular columns, the rule generally followed, is
A.	middle half rule of columns
B.	middle third rule of columns
C.	middle fourth rule of columns
D.	none of these.
Answer» D. none of these.

Discussion

723.	A three hinged arch is loaded with an isolated load 1000 kg at a horizontal distance of 2.5 m from the crown, 1 m above the level of hinges at the supports 10 metres apart. The horizontal thrust is
A.	1250 kg
B.	125 kg
C.	750 kg
D.	2500 kg
Answer» B. 125 kg

Discussion

724.	Maximum deflection of a cantilever due to pure bending moment M at its free end, is
A.	A
B.	B
C.	C
D.	D
Answer» E.

Discussion

725.	The bending moment at C of a portal frame shown in below figure is
A.	8 t-m
B.	4 t-m
C.	28 t-m
D.	zero
Answer» E.

Discussion

726.	For a cantilever with a uniformly distributed load W over its entire length L, the maximum bending moment is
A.	A
B.	B
C.	C
D.	D
Answer» C. C

Discussion

727.	Simple bending equation is
A.	A
B.	B
C.	C
D.	D
Answer» D. D

Discussion

728.	If Z and I are the section modulus and moment of inertia of the section, the shear force F and bending moment M at a section are related by
A.	A
B.	B
C.	C
D.	D
Answer» D. D

Discussion

729.	A closely coiled helical spring of radius R, contains n turns and is subjected to an axial load W. If the radius of the coil wire is r and modulus of rigidity of the coil material is C, the deflection of the coil is
A.	A
B.	B
C.	C
D.	D
Answer» E.

Discussion

730.	The width of a beam of uniform strength having a constant depth d length L, simply supported at the ends with a central load W is
A.	A
B.	B
C.	C
D.	D
Answer» C. C

Discussion

731.	The maximum deflection of a simply supported beam of length L with a central load W, is
A.	A
B.	B
C.	C
D.	D
Answer» D. D

Discussion

732.	Shear deflection of a cantilever of length L, cross sectional area A and shear modulus G, subjected to w/m u.d.l., is
A.	A
B.	B
C.	C
D.	D
Answer» B. B

Discussion

733.	If a circular beam of diameter d experiences a longitudinal strain P/E and a lateral strain 2P/mE , the volumetric strain is
A.	A
B.	B
C.	C
D.	D
Answer» C. C

Discussion

734.	The structure shown in below figure is stable, if
A.	A
B.	B
C.	C
D.	D
Answer» E.

Discussion

735.	The greatest eccentricity which a load W can have without producing tension on the cross-section of a short column of external diameter D and internal diameter d, is
A.	A
B.	B
C.	C
D.	D
Answer» D. D

Discussion

736.	If the normal cross-section A of a member is subjected to tensile force P, the resulting normal stress in an oblique plane inclined at angle θ to transverse plane will be
A.	A
B.	B
C.	C
D.	D
Answer» C. C

Discussion

737.	For a channel section, the shear centre lies at a distance of
A.	A
B.	B
C.	C
D.	D
Answer» D. D

Discussion

738.	The nature of the stress in horizontal members of the truss shown in below figure may be
A.	compressive
B.	tensile
C.	shear
D.	zero
Answer» C. shear

Discussion

739.	The ratio of the moments of resistance of a solid circular shaft of diameter D and a hollow shaft (external diameter D and internal diameter d), is
A.	A
B.	B
C.	C
D.	D
Answer» B. B

Discussion

740.	A cantilever carries is uniformly distributed load W over its whole length and a force W acts at its free end upward. The net deflection of the free end will be
A.	A
B.	B
C.	C
D.	D
Answer» C. C

Discussion

741.	In the given below figure, the rivets with maximum stress, are :
A.	1 and 2
B.	1 and 3
C.	3 and 4
D.	2 and 4
Answer» E.

Discussion

742.	For a given material, if E, C, K and m are Young's modulus, shearing modulus, bulk modulus and poisson ratio, the following relation does not hold good
A.	A
B.	B
C.	C
D.	D
Answer» D. D

Discussion

743.	For the beam shown in below figure, the maximum positive bending moment is nearly equal to negative bending moment when L1 is equal to
A.	1.0 L
B.	0.7 L
C.	0.5 L
D.	0.35 L
Answer» E.

Discussion

744.	The bending moment at E for the structure shown in below figure, is
A.	zero
B.	10 Tm
C.	20 Tm
D.	40 Tm
Answer» B. 10 Tm

Discussion

745.	A composite member shown in below figure was formed at 25°C and was made of two materials a and b. If the coefficient of thermal expansion of a is more than that of b and the composite member is heated upto 45°C, then
A.	a will be in tension and b in compression
B.	both will be in compression
C.	both will be in tension
D.	a will be in compression and b in tension
Answer» E.

Discussion

746.	Shear deflection of a cantilever of length L, cross sectional area A and shear modulus G, under a concentrated load W at its free end, is
A.	A
B.	B
C.	C
D.	D
Answer» D. D

Discussion

747.	The force in BD of the truss shown in below figure is :
A.	500 kg compressive
B.	500 kg tensile
C.	1500 kg tensile
D.	1500 kg compressive
Answer» B. 500 kg tensile

Discussion

748.	An open-ended cylinder of radius r and thickness t is subjected to internal pressure p. The Young's modulus for the material is E and Poisson's ratio is μ. The longitudinal strain is
A.	A
B.	B
C.	C
D.	D
Answer» B. B

Discussion

749.	Euler's formula states that the buckling load P for a column of length l, both ends hinged and whose least moment of inertia and modulus of elasticity of the material of the column are I and E respectively, is given by the relation
A.	A
B.	B
C.	C
D.	D
Answer» B. B

Discussion

750.	The force in the member DE of the truss shown in below figure will be
A.	zero
B.	2 W tensile
C.	2 W compressive
D.	4 W compressive
Answer» D. 4 W compressive

Discussion

Explore topic-wise MCQs in Surveying.

A member which is subjected to reversible tensile or compressive stress may fail at a stress lower than the ultimate stress of the material. This property of metal, is called

A short masonry pillar is 60 cm x 60 cm in cross-section, the core of the pillar is a square whose side is

A joint of a frame is subjected to three tensile force P, Q and R equally inclined to each other. If P is 10 tonnes, the other forces will be

The moment diagram for a cantilever carrying a concentrated load at its free end, will be

If b is the width of a plate joined by diamond riveting of diameter d, the efficiency of the joint is given by

The B.M. diagram of the beam shown in below figure, is

If S is the shear force at a section of an I-joist, having web depth d and moment of inertia I about its neutral axis, the difference between the maximum and mean shear stresses in the web is,

A solid circular shaft of diameter d is subjected to a torque T. The maximum normal stress induced in the shaft, is

If p is the internal pressure in a thin cylinder of diameter d and thickness t, the developed hoop stress, is

The energy stored in a beam of length L subjected to a constant B.M. is

The maximum compressive stress at the top of a beam is 1600 kg/cm² and the corresponding tensile stress at its bottom is 400 kg/cm² . If the depth of the beam is 10 cm, the neutral axis from the top, is

The B.M. of a cantilever beam shown in below figure at A, is

The slenderness ratio of a vertical column of a square cross-section of 2.5 cm sides and 300 cm length, is

When loads are applied proportionately to a frame structure containing its members in one plane, the structure is called

Maximum deflection of a

The slenderness ratio of a vertical column of square cross- section of 10 cm side and 500 cm long, is

A steel rod of 2 cm diameter and 5 metres long is subjected to an axial pull of 3000 kg. If E = 2.1 x 10⁶, the elongation of the rod will be

A rectangular log of wood is floating in water with a load of 100 N at its centre. The maximum shear force in the wooden log is

The tension coefficient of any member is

The point of contraflexture occurs in

When a rectangular beam is loaded longitudinally, shear develops on

To ascertain the maximum permissible eccentricity of loads on circular columns, the rule generally followed, is

A three hinged arch is loaded with an isolated load 1000 kg at a horizontal distance of 2.5 m from the crown, 1 m above the level of hinges at the supports 10 metres apart. The horizontal thrust is

Maximum deflection of a cantilever due to pure bending moment M at its free end, is

The bending moment at C of a portal frame shown in below figure is

For a cantilever with a uniformly distributed load W over its entire length L, the maximum bending moment is

Simple bending equation is

If Z and I are the section modulus and moment of inertia of the section, the shear force F and bending moment M at a section are related by

A closely coiled helical spring of radius R, contains n turns and is subjected to an axial load W. If the radius of the coil wire is r and modulus of rigidity of the coil material is C, the deflection of the coil is

The width of a beam of uniform strength having a constant depth d length L, simply supported at the ends with a central load W is

The maximum deflection of a simply supported beam of length L with a central load W, is

Shear deflection of a cantilever of length L, cross sectional area A and shear modulus G, subjected to w/m u.d.l., is

If a circular beam of diameter d experiences a longitudinal strain P/E and a lateral strain 2P/mE , the volumetric strain is

The structure shown in below figure is stable, if

The greatest eccentricity which a load W can have without producing tension on the cross-section of a short column of external diameter D and internal diameter d, is

If the normal cross-section A of a member is subjected to tensile force P, the resulting normal stress in an oblique plane inclined at angle θ to transverse plane will be

For a channel section, the shear centre lies at a distance of

The nature of the stress in horizontal members of the truss shown in below figure may be

The ratio of the moments of resistance of a solid circular shaft of diameter D and a hollow shaft (external diameter D and internal diameter d), is

A cantilever carries is uniformly distributed load W over its whole length and a force W acts at its free end upward. The net deflection of the free end will be

In the given below figure, the rivets with maximum stress, are :

For a given material, if E, C, K and m are Young's modulus, shearing modulus, bulk modulus and poisson ratio, the following relation does not hold good

For the beam shown in below figure, the maximum positive bending moment is nearly equal to negative bending moment when L1 is equal to

The bending moment at E for the structure shown in below figure, is

A composite member shown in below figure was formed at 25°C and was made of two materials a and b. If the coefficient of thermal expansion of a is more than that of b and the composite member is heated upto 45°C, then

Shear deflection of a cantilever of length L, cross sectional area A and shear modulus G, under a concentrated load W at its free end, is

The force in BD of the truss shown in below figure is :

An open-ended cylinder of radius r and thickness t is subjected to internal pressure p. The Young's modulus for the material is E and Poisson's ratio is μ. The longitudinal strain is

Euler's formula states that the buckling load P for a column of length l, both ends hinged and whose least moment of inertia and modulus of elasticity of the material of the column are I and E respectively, is given by the relation

The force in the member DE of the truss shown in below figure will be