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Q1. | The shear force at the centre of a simply supported beam with a gradually varying load from zero at both ends to w per metre at the centre, is |

A. | zero [Correct Answer] |

B. | wl/4 [Wrong Answer] |

C. | wl/2 [Wrong Answer] |

D. | wl2/2 [Wrong Answer] |

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Explanation:-
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**Also Read Similar Questions Below :**

⇒ A beam extending beyond the supports is called.

simply supported beam

fixed beam

overhanging beam

cantilever beam

⇒ Tensile strength of a material is obtained by dividing the maximum load during the test by the

area at the time of fracture

original cross-sectional area

average of (a) and (b)

minimum area after fracture

⇒ The deformation per unit length is called?

tensile stress

compressive stress

shear stress

strain

⇒ Which of the following statement is correct?

A continuous beam has only two supports at the ends.

A uniformly distributed load spreads uniformly over the whole length of a beam.

The bending moment is maximum where shear force is maximum.

The maximum bending moment of a simply supported beam of length l with a central point load W is Wl/8.

⇒ The load required to produce a unit deflection in a spring is called.

flexural rigidity

torsional rigidity

spring stiffness

Young's modulus

⇒ The section modulus of a rectangular section about an axis through its C.G., is.

b/2

d/2

bd2/2

bd2/6

⇒ The design of thin cylindrical shells is based on.

hoop stress

longitudinal stress

arithmetic mean of the hoop and the longitudinal stress

geometric mean of the hoop and longitudinal stress

⇒ The property of a material by virtue of which a body returns to its original, shape after removal of the load is called

plasticity

elasticity

ductility

malleability

⇒ True stress-strain curve for materials is plotted between

load/original cross-sectional area and change in length/original length

load/instantaneous cross-sectional area original area and log.

load/instantaneous cross-sectional area and change in length/original length

load/instantaneous area and instantaneous area/original area

⇒ A body is subjected to a direct tensile stress of 300 MPa in one plane accompanied by a simple shear stress of 200 MPa. The maximum shear stress will be

-100 MPa

250 MPa

300 MPa

400 MPa

⇒ The impact strength of a material is an index of its

toughness

tensile strength

capability of being cold worked

hardness

⇒ The stress at which extension of the material takes place more quickly as com¬pared to the increase in load is called

elastic point of the material

plastic point of the material

breaking point of the material

yielding point of the material

⇒ In order to know whether a column is long or short, we must know its slenderness ratio.

True

False

incorrect

none of these

⇒ Whenever a material is loaded within elastic limit, stress is __________ strain.

equal to

directly proportional to

inversely proportional to

indirect proportional to

⇒ The torque transmitted by a solid shaft of diameter (

*D*) is (where τ = Maximum allowable shear stress)?

n/4 x Ï„ x D3

n/16 x Ï„ x D3

n/32 x Ï„ x D3

n/64 x Ï„ x D3

⇒ The shear force diagram for a simply supported beam carrying a uniformly distributed load of

*w*per unit length, consists of.

one right angled triangle

two right angled triangles

one equilateral triangle

two equilateral triangles

⇒ The maximum stress produced in a bar of tapering section is at?

smaller end

larger end

middle

anywhere

⇒ The direct stress induced in a long column is __________ as compared to bending stress.

same

more

less

negligible

⇒ A non-yielding support implies that the

support is frictionless

support can take any amount of reaction

support holds member firmly

slope of the beam at the support is zero

⇒ The centre to centre distance, between two consecutive rivets in a row, is called

margin

pitch

back pitch

diagonal pitch

⇒ When a rectangular beam is loaded longitudinally, the shear force develops on the top layer.

Agree

Disagree

True

False

⇒ In order to avoid tearing off the plate at an edge, the distance from the centre of the rivet hole to the nearest edge of the plate (i.e. margin) should be (where

*d*= Diameter of rivet hole in mm)

d

1.5 d

2 d

2.5 d

⇒ A body is subjected to two normal stresses 20 kN/m

^{2}(tensile) and 10 kN/m

^{2}(compressive) acting perpendicular to each other. The maximum shear stress is.

5 kN/m2

10 kN/m2

15 kN/m2

20 kN/m2

⇒ A closely-coiled helical spring is cut into two halves. The stiffness of the resulting spring will be

same

double

half

one-fourth

⇒ The bending moment diagram for a cantilever beam of length

*l*and carrying a gradually varying load from zero at the free end and

*w*per unit length at the fixed end is a parabolic curve.

Agree

Disagree

True

False

⇒ The safe twisting moment for a compound shaft is equal to the

maximum calculated value

minimum calculated value

mean value

extreme value

⇒ In a stress-strain diagram as shown in the below figure, the curve

*A*represents

mild steel

soft brass

low carbon steel

cold rolled steel

⇒ A welded joint as compared to a riveted joint has __________ strength.

same

less

more

high

⇒ Modular ratio of the two materials is the ratio of

linear stress to linear strain

shear stress to shear strain

their modulus of elasticities

their modulus of rigidities

⇒ The intensity of stress which causes unit strain is called

unit stress

bulk modulus

modulus of rigidity

modulus of elasticity