A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span
Answer
Correct Answer:
4.0 cm
Note: This Question is unanswered, help us to find answer for this one
Along the neutral axis of a simply supported beam
Answer
Correct Answer:
Fibres do not undergo strain
Note: This Question is unanswered, help us to find answer for this one
The ratio of strengths of solid to hollow shafts, both having outside diameter D and hollow having inside diameter D/2, in torsion, is
Answer
Correct Answer:
15/15
Note: This Question is unanswered, help us to find answer for this one
According to principle of moments
Answer
Correct Answer:
If a system of coplanar forces is in equilibrium, then the algebraic sum of their moments about any point in their plane is zero
Note: This Question is unanswered, help us to find answer for this one
The stress in the wall of a cylinder in a direction normal to its longitudinal axis, due to a force acting along the circumference, is known as
Answer
Correct Answer:
Hoop stress
Note: This Question is unanswered, help us to find answer for this one
A simply supported beam (l + 2a) with equal overhangs carries a uniformly distributed load over the whole length, the B.M. changes sign if
Answer
Correct Answer:
L > 2a
Note: This Question is unanswered, help us to find answer for this one
A force acting on a body may
Answer
Correct Answer:
All of the above
Note: This Question is unanswered, help us to find answer for this one
Strain energy of a member may be equated to
Answer
Correct Answer:
½ (stress)2 × volume of the member + Young's modulus E
Note: This Question is unanswered, help us to find answer for this one
Struts are load carrying members of a frame structure which are subjected to
Answer
Correct Answer:
Axial compressive loads
Note: This Question is unanswered, help us to find answer for this one
The C.G. of a plane lamina will not be at its geometrical centre in the case of a
Answer
Correct Answer:
Right angled triangle
Note: This Question is unanswered, help us to find answer for this one
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
Answer
Correct Answer:
(5/24) (WL3/EI) upward
Note: This Question is unanswered, help us to find answer for this one
The B.M. of a cantilever beam shown in below figure at A, is
Answer
Correct Answer:
Zero
Note: This Question is unanswered, help us to find answer for this one
A flywheel on a motor goes from rest to 1000 rpm in 6 sec. The number of revolutions made is nearly equal to
Answer
Correct Answer:
50
Note: This Question is unanswered, help us to find answer for this one
The maximum deflection of
Answer
Correct Answer:
All the above
Note: This Question is unanswered, help us to find answer for this one
The phenomenon of slow extension of materials having constant load, i.e. increasing with the time is called
Answer
Correct Answer:
Creeping
Note: This Question is unanswered, help us to find answer for this one
On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be
Answer
Correct Answer:
Zero at its upper end
Note: This Question is unanswered, help us to find answer for this one
Ties are load carrying members of a frame, which are subjected to
Answer
Correct Answer:
Axial tension loads
Note: This Question is unanswered, help us to find answer for this one
The radius of gyration of a rectangular section is not proportional to
Answer
Correct Answer:
None of these
Note: This Question is unanswered, help us to find answer for this one
The units of moment of inertia of an area are
Answer
Correct Answer:
M4
Note: This Question is unanswered, help us to find answer for this one
A cast iron T section beam is subjected to pure bending. For maximum compressive stress to be three times the maximum tensile stress, centre of gravity of the section from flange side is
Answer
Correct Answer:
H/4
Note: This Question is unanswered, help us to find answer for this one
Influence lines are drawn for structures
Answer
Correct Answer:
Of any type
Note: This Question is unanswered, help us to find answer for this one
Which of the following is not a scalar quantity?
Answer
Correct Answer:
Acceleration
Note: This Question is unanswered, help us to find answer for this one
The stress necessary to initiate yielding, is considerably
Answer
Correct Answer:
More than that necessary to continue it
Note: This Question is unanswered, help us to find answer for this one
The slenderness ratio of a vertical column of a square cross-section of 2.5 cm sides and 300 cm length, is
Answer
Correct Answer:
416
Note: This Question is unanswered, help us to find answer for this one
Forces are called coplanar when all of them acting on body lie in
Answer
Correct Answer:
One plane
Note: This Question is unanswered, help us to find answer for this one
The property by which a body returns to its original shape after removal of the force, is called
Answer
Correct Answer:
Elasticity
Note: This Question is unanswered, help us to find answer for this one
In the cantilever truss as shown in below figure, the horizontal component of the reaction at A, is
Answer
Correct Answer:
30 tonnes
Note: This Question is unanswered, help us to find answer for this one
In the lever of third order, load W, effort P and fulcrum F are oriented as follows
Answer
Correct Answer:
W between P and F
Note: This Question is unanswered, help us to find answer for this one
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
Answer
Correct Answer:
4WR3n/Cr4
Note: This Question is unanswered, help us to find answer for this one
The property of a material by which it can be beaten or rolled into thin plates, is called
Answer
Correct Answer:
Malleability
Note: This Question is unanswered, help us to find answer for this one
Dynamic friction as compared to static friction is
Answer
Correct Answer:
Less
Note: This Question is unanswered, help us to find answer for this one
Pick up the correct assumption of the theory of simple bending
Answer
Correct Answer:
All the above
Note: This Question is unanswered, help us to find answer for this one
In rectangular columns (cross-section b × h), the core is a
Answer
Correct Answer:
Rhombus of diagonals b/3 and h/3
Note: This Question is unanswered, help us to find answer for this one
A cantilever beam rectangular in cross-section is subjected to an isolated load at its free end. If the width of the beam is doubled, the deflection of the free end will be changed in the ratio of
Answer
Correct Answer:
1/2
Note: This Question is unanswered, help us to find answer for this one
The resultant of the following three couples 20 kg force, 0.5 m arm, +ve sense 30 kg force, 1 m arm, -ve sense 40 kg force, 0.25 m arm, +ve sense having arm of 0.5 m will be
Answer
Correct Answer:
20 kg, -ve sense
Note: This Question is unanswered, help us to find answer for this one
A diagram which shows the variations of the axial load for all sections of the span of a beam, is called
Answer
Correct Answer:
Thrust diagram
Note: This Question is unanswered, help us to find answer for this one
The force in DB of the truss shown in below figure is
Answer
Correct Answer:
W tension
Note: This Question is unanswered, help us to find answer for this one
Center of gravity of a solid cone lies on the axis at the height
Answer
Correct Answer:
One-fourth of the total height above base
Note: This Question is unanswered, help us to find answer for this one
In a shaft shear stress intensity at a point is not
Answer
Correct Answer:
Inversely proportional to the distance from the axis
Note: This Question is unanswered, help us to find answer for this one
If a shaft is rotating N revolutions per minute with an applied torque T kg-m, the horse power being transmitted by the shaft, is
Answer
Correct Answer:
2 /4500
Note: This Question is unanswered, help us to find answer for this one
Which of the following is not the unit of work, energy and heat?
Answer
Correct Answer:
Hp
Note: This Question is unanswered, help us to find answer for this one
At either end of a plane frame, maximum number of possible bending moments, are
Answer
Correct Answer:
Zero
Note: This Question is unanswered, help us to find answer for this one
The ratio of the maximum deflections of a beam simply supported at its ends with an isolated central load and that of with a uniformly distributed load over its entire length, is
Answer
Correct Answer:
24/15
Note: This Question is unanswered, help us to find answer for this one
Forces are called concurrent when their lines of action meet in
Answer
Correct Answer:
One point
Note: This Question is unanswered, help us to find answer for this one
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
Answer
Correct Answer:
(3/2) (WL/AG)
Note: This Question is unanswered, help us to find answer for this one
If two forces acting at a joint are not along the straight line, then for the equilibrium of the joint
Answer
Correct Answer:
Each force must be zero
Note: This Question is unanswered, help us to find answer for this one
In the given below figure, the rivets with maximum stress, are:
Answer
Correct Answer:
2 and 4
Note: This Question is unanswered, help us to find answer for this one
In actual machines
Answer
Correct Answer:
Mechanical advantage is less than velocity ratio
Note: This Question is unanswered, help us to find answer for this one
In a loaded beam, the point of contraflexure occurs at a section where
Answer
Correct Answer:
Bending moment is zero or changes sign
Note: This Question is unanswered, help us to find answer for this one
The C.G. of a solid hemisphere lies on the central radius 3r
Answer
Correct Answer:
At distance from the plane base or
Note: This Question is unanswered, help us to find answer for this one
For keeping the stress wholly compressive the load may be applied on a circular column anywhere within a concentric circle of diameter
Answer
Correct Answer:
D/4
Note: This Question is unanswered, help us to find answer for this one
The type of butt joints in common use, is:
Answer
Correct Answer:
Single inverted V-butt joint
Note: This Question is unanswered, help us to find answer for this one
Tangent of angle of friction is equal to
Answer
Correct Answer:
Coefficient of friction
Note: This Question is unanswered, help us to find answer for this one
Pick up the correct statement from the following:
Answer
Correct Answer:
Both and
Note: This Question is unanswered, help us to find answer for this one
The structure shown in below figure is stable, if
Answer
Correct Answer:
X) = y
Note: This Question is unanswered, help us to find answer for this one
In the equation of virtual work, following force is neglected
Answer
Correct Answer:
All of the above
Note: This Question is unanswered, help us to find answer for this one
A joint of a frame is subjected to three tensile forces P, Q and R equally inclined to each other. If P is 10 tonnes, the other forces will be
Answer
Correct Answer:
Q and R each is equal to 10 tonnes
Note: This Question is unanswered, help us to find answer for this one
When equal and opposite forces applied to a body, tend to elongate it, the stress so produced, is called
Answer
Correct Answer:
Tensile stress
Note: This Question is unanswered, help us to find answer for this one
A framed structure is perfect if it contains members equal to
Answer
Correct Answer:
2n
Note: This Question is unanswered, help us to find answer for this one
During a tensile test on a ductile material
Answer
Correct Answer:
True stress at fracture is higher than the ultimate stress
Note: This Question is unanswered, help us to find answer for this one
The force in BD of the truss shown in below figure is:
Answer
Correct Answer:
500 kg compressive
Note: This Question is unanswered, help us to find answer for this one
Which of the following is not the unit of pressure?
Answer
Correct Answer:
Newton
Note: This Question is unanswered, help us to find answer for this one
The maximum bending moment due to a moving load on a simply supported beam, occurs
Answer
Correct Answer:
Under the load
Note: This Question is unanswered, help us to find answer for this one
The unit of power in S.I. units is
Answer
Correct Answer:
Watt
Note: This Question is unanswered, help us to find answer for this one
The maximum stress intensity due to a suddenly applied load is x-times the stress intensity produced by the load of the same magnitude applied gradually. The value of x is
Answer
Correct Answer:
2
Note: This Question is unanswered, help us to find answer for this one
When loads are applied proportionately to a frame structure containing its members in one plane, the structure is called
Answer
Correct Answer:
Space frame
Note: This Question is unanswered, help us to find answer for this one
The angle which an inclined plane makes with the horizontal when a body placed on it is about to move down is known as angle of
Answer
Correct Answer:
Repose
Note: This Question is unanswered, help us to find answer for this one
The force in member U2L2 of the truss shown in below figure, is
Answer
Correct Answer:
10 T compression
Note: This Question is unanswered, help us to find answer for this one
The coefficient of friction depends upon
Answer
Correct Answer:
Nature of surfaces
Note: This Question is unanswered, help us to find answer for this one
The intensity of direct longitudinal stress in the cross-section at any point distant r from the neutral axis, is proportional to
Answer
Correct Answer:
R
Note: This Question is unanswered, help us to find answer for this one
A closely coiled helical spring of radius R, contains n turns and is subjected to an axial loadW. If the radius of the coil wire is r and modulus of rigidity of the coil material is C, the stress developed in the helical spring is
Answer
Correct Answer:
2WR/ 3
Note: This Question is unanswered, help us to find answer for this one
The coefficient of friction depends on
Answer
Correct Answer:
Nature of surface
Note: This Question is unanswered, help us to find answer for this one
A beam is said to be of uniform strength, if
Answer
Correct Answer:
Bending stress is same at every section along its longitudinal axis
Note: This Question is unanswered, help us to find answer for this one
A rectangular bar of width b and height h is being used as a cantilever. The loading is in a plane parallel to the side b. The section modulus is
Answer
Correct Answer:
Bh²/6
Note: This Question is unanswered, help us to find answer for this one
Center of gravity of a thin hollow cone lies on the axis at a height of
Answer
Correct Answer:
One-third of the total height above base
Note: This Question is unanswered, help us to find answer for this one
If is the shear force at a section of an I-joist, having web depth and moment of inertia about its neutral axis, the difference between the maximum and mean shear stresses in the web is,
Answer
Correct Answer:
Sd²/24I
Note: This Question is unanswered, help us to find answer for this one
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
Answer
Correct Answer:
(D² + d²)/8D
Note: This Question is unanswered, help us to find answer for this one
Which of the following is not a vector quantity?
Answer
Correct Answer:
Weight
Note: This Question is unanswered, help us to find answer for this one
A ____ is an electronic circuit
Answer
Correct Answer:
Voltage limiter
Note: This Question is unanswered, help us to find answer for this one
Metal patterns are used for
Answer
Correct Answer:
Large scale production of castings
Note: This Question is unanswered, help us to find answer for this one
The limit of eccentricity is based upon no tension condition.
Answer
Correct Answer:
True
Note: This Question is unanswered, help us to find answer for this one
When a rectangular beam is loaded transversely, the maximum compressive stress is developed on the
Answer
Correct Answer:
Bottom layer
Note: This Question is unanswered, help us to find answer for this one
The point of contraflexure is a point where
Answer
Correct Answer:
Bending moment changes sign
Note: This Question is unanswered, help us to find answer for this one
The maximum stress produced in a bar of tapering section is at
Answer
Correct Answer:
Smaller end
Note: This Question is unanswered, help us to find answer for this one
The rectangular beam 'A' has length l, width b and depth d. Another beam 'B' has the same length and depth but width is double that of 'A'. The elastic strength of beam 'B' will be __________ as compared to beam A.
Answer
Correct Answer:
Double
Note: This Question is unanswered, help us to find answer for this one
When a column is subjected to an eccentric load, the stress induced in the column will be
Answer
Correct Answer:
Direct and bending stress both
Note: This Question is unanswered, help us to find answer for this one
The energy stored in a body when strained within elastic limit is known as
Answer
Correct Answer:
Strain energy
Note: This Question is unanswered, help us to find answer for this one
The stress induced in a body, when suddenly loaded, is __________ the stress induced when the same load is applied gradually.
Answer
Correct Answer:
Twice
Note: This Question is unanswered, help us to find answer for this one
Two closely-coiled helical springs 'A' and 'B' of the same matenal, same number of turns and made from same wire are subjected to an axial load W. The mean diameter of spring 'A' is double the mean diameter of spring 'B'. The ratio of deflections in spring 'B' to spring 'A' will be
Answer
Correct Answer:
1/8
Note: This Question is unanswered, help us to find answer for this one
The thermal stress __________ upon the cross-sectional area of the bar.
Answer
Correct Answer:
Does not depend
Note: This Question is unanswered, help us to find answer for this one
Strain resetters are used to
Answer
Correct Answer:
Measure linear strain
Note: This Question is unanswered, help us to find answer for this one
The deformation per unit length is called
Answer
Correct Answer:
Strain
Note: This Question is unanswered, help us to find answer for this one
In compression test, the fracture in cast iron specimen would occur along
Answer
Correct Answer:
An oblique plane
Note: This Question is unanswered, help us to find answer for this one
A reinforced cement concrete beam is considered to be made of
Answer
Correct Answer:
Hetrogeneous material
Note: This Question is unanswered, help us to find answer for this one
The neutral axis of the cross-section a beam is that axis at which the bending stress is
Answer
Correct Answer:
Minimum
Note: This Question is unanswered, help us to find answer for this one
A column that fails due to direct stress, is called
Answer
Correct Answer:
Short column
Note: This Question is unanswered, help us to find answer for this one
When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as __________ double cover butt joint.
Answer
Correct Answer:
Double riveted
Note: This Question is unanswered, help us to find answer for this one
Two shafts 'A' and 'B' transmit the same power. The speed of shaft 'A' is 250 r.p.m. and that of shaft 'B' is 300 r.p.m. The shaft 'B' has the greater diameter.
Answer
Correct Answer:
False
Note: This Question is unanswered, help us to find answer for this one
The object of caulking in a riveted joint is to make the joint
Answer
Correct Answer:
Leak-proof
Note: This Question is unanswered, help us to find answer for this one
A beam encastered at both the ends is called
Answer
Correct Answer:
Fixed beam
Note: This Question is unanswered, help us to find answer for this one
