Assistant Soil Conservation Engineer • Paper-I
Minimum pitch of the rivets shall not be less than
A)
1.5 d
B)
2.0 d
C)
2.5 d
D)
3.0 d
Minimum rivet pitch is 2.5d.
Assistant Soil Conservation Engineer • Paper-I
Muller Breslau principle in structural analysis is used for
A)
Drawing influence line diagram for any force function
B)
Writing virtual work equation
C)
Super-position of load effects
D)
None of these
Müller-Breslau’s principle is used to construct influence lines for force functions.
Assistant Soil Conservation Engineer • Paper-I
A prismatic beam of length L and fixed at both ends carries a uniformly distributed load. The distance of points of contraflexure from either end is
A)
0.207 * L
B)
0.403 * L
C)
0.586* L
D)
0.25 * L
Fixed-beam contraflexure points under UDL occur about 0.207L from either end.
Assistant Soil Conservation Engineer • Paper-I
A steel beam supporting loads from the floor slab as well as from wall is termed as
A)
Stringer beam
B)
Lintel beam
C)
Spandrel beam
D)
Header beam
A spandrel beam carries floor/slab loads and wall loads at the perimeter.
Assistant Soil Conservation Engineer • Paper-I
Shear buckling of web in plate girder is provided to safeguard against
A)
Vertical intermediate stiffener
B)
Horizontal stiffener at neutral axis
C)
Bearing stiffener
D)
None of the above
Vertical intermediate stiffeners help prevent shear buckling of the web.
Assistant Soil Conservation Engineer • Paper-I
Finer grinding of cement
A)
Affects the early development strength
B)
Affects the ultimate strength
C)
Both (a) and (b)
D)
Does not affect the strength
Finer grinding mainly increases early strength development; hence A.
Assistant Soil Conservation Engineer • Paper-I
For the design of a cast iron member, the most appropriate theory of failure is
A)
Mohr’s theory
B)
Rankine’s theory
C)
Maximum strain theory
D)
Maximum shear energy theory
Mohr’s theory is appropriate for brittle materials such as cast iron.
Assistant Soil Conservation Engineer • Paper-I
For M15 concrete (1:2:4) the moment of resistance factor is
A)
0.87
B)
8.5
C)
7.5
D)
4.46
For M15 concrete (1:2:4), the tabulated moment-resistance factor is 0.87.
Assistant Soil Conservation Engineer • Paper-I
According to IS 456 the maximum reinforcement in column is
A)
2 %
B)
4 %
C)
6 %
D)
8 %
IS 456 permits up to 6% longitudinal reinforcement in a column.
Assistant Soil Conservation Engineer • Paper-I
If the shear force at a section of beam under bending is equal to 0 then the bending moment at the section is
A)
Zero
B)
Maximum
C)
Minimum
D)
Constant
Where shear force is zero, bending moment is at an extremum; in ordinary beam loading it is usually maximum.
Assistant Soil Conservation Engineer • Paper-I
Strain energy is the
A)
Energy stored in a body when strained within elastic limits
B)
Energy stored in a body when strained upto the breaking point of a specimen
C)
Maximum strain energy which can be stored in a body
D)
Proof resilience per unit volume of a material
Strain energy is elastic energy stored in a body when it is deformed within the elastic limit.
Assistant Soil Conservation Engineer • Paper-I
The construction joints in buildings are provided after
A)
30 m
B)
40 m
C)
50 m
D)
60 m
Building construction joints are commonly spaced around 30 m for this type of exam convention.
Assistant Soil Conservation Engineer • Paper-I
The sum of tread and rise must lie between
A)
300 – 350 mm
B)
400 – 450 mm
C)
500 – 550 mm
D)
600 – 650 mm
The usual stair proportion places tread + rise around 400–450 mm.
Assistant Soil Conservation Engineer • Paper-I
A single rolling load of 8 kN rolls along a girder of 15 m span. The absolute maximum bending moment will be
A)
8 kN.m
B)
15 kN.m
C)
20 kN.m
D)
30 kN.m
PL/4 = 8×15/4 = 30 kN·m.
Assistant Soil Conservation Engineer • Paper-I
The resultant of two forces P and Q acting at an angle θ, is
A)
P2 + Q2 + 2PQ sinθ
B)
P2 + Q2 + 2PQ cosθ
C)
√(P2 + Q2 + 2PQ sinθ)
D)
√(P2 + Q2 + 2PQ cosθ)
R=√(P²+Q²+2PQ cosθ).
Assistant Soil Conservation Engineer • Paper-I
Work may be defined as
A)
Force x distance
B)
Force x velocity
C)
Force x acceleration
D)
None of these
Work is force times displacement in the direction of the force.
Assistant Soil Conservation Engineer • Paper-I
Maximum deflection of a cantilever due to pure bending moment at its free end, is
A)
ML2/3EI
B)
ML2/4EI
C)
ML2/6EI
D)
ML2/2EI
A cantilever under a constant end moment has δ=ML²/(2EI).
Assistant Soil Conservation Engineer • Paper-I
The target mean strength fcm for concrete mix design obtained from the characteristic strength fck and standard deviation s, as defined in IS456:2000 is
A)
fck + 1.35 s
B)
fck + 1.45 s
C)
fck + 1.55 s
D)
fck + 1.65 s
Target mean strength is fck+1.65s.
Assistant Soil Conservation Engineer • Paper-I
The aspect ratio is defined as the ratio of
A)
Length to breadth of a state
B)
Effective width of flange and effective depth of the beam
C)
Width of well and depth of flange
D)
None of these
For this RCC question, the aspect ratio is the ratio of effective width of flange to effective depth as stated in option B.
Assistant Soil Conservation Engineer • Paper-I
The flexural strength of M30 concrete as per IS 456-2000
A)
3.83 MPa
B)
5.47 MPa
C)
21.23 MPa
D)
30.0 MPa
For M30 concrete, 0.7√30≈3.83 MPa.
Assistant Soil Conservation Engineer • Paper-I
Which of the following elements of a pitched roof industrial steel building primarily resist lateral load parallel to the ridge
A)
Bracings
B)
Purlins
C)
Truss
D)
Columns
Bracing primarily resists lateral loads parallel to the ridge.
Assistant Soil Conservation Engineer • Paper-I
Degree of static indeterminacy of a rigid jointed plane frame having 15 members, 3 reaction components and 14 joints is
A)
2
B)
3
C)
6
D)
8
Ds=3m+r−3j=45+3−42=6.
Assistant Soil Conservation Engineer • Paper-I
As per IS 800:2007, the cross section in which extreme fibre can reach the yield stress, but cannot develop the plastic moment of resistance due to failure by local buckling is classified as
A)
Plastic section
B)
Compact section
C)
Semi compact section
D)
Slender section
A semi-compact section can reach yield at an extreme fibre but cannot develop full plastic moment before local buckling.
Assistant Soil Conservation Engineer • Paper-I
Which one of the following is categorized as a long term loss of prestress in a prestressed concrete member
A)
Loss due to elastic shortening
B)
Loss due to friction
C)
Loss due to relaxation of strand
D)
Loss due to anchorage slip
Relaxation of prestressing steel is a long-term loss.
Assistant Soil Conservation Engineer • Paper-I
The minimum thickness of the cover at the end of a reinforcing bar should not be less than twice the diameter of the bar subject to a minimum of
A)
15 mm
B)
20 mm
C)
25 mm
D)
30 mm
The minimum end cover is 20 mm when applying the twice-diameter rule subject to the stated minimum.
