Users Also Read

MCQ's Search Engine

Electrical Engineering

Mechanical Engineering

Civil Engineering

Automobile Engineering

Chemical Engineering

Computer Engineering

Electronics Engineering

Medical Science Engg

Q1. | 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 minimum normal stress will be. |

A. | -100 MPa [Correct Answer] |

B. | 250 MPa [Wrong Answer] |

C. | 300 MPa [Wrong Answer] |

D. | 400 MPa [Wrong Answer] |

View Answer
Explanation:-
Answer : ADiscuss it below :!! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒ A beam supported at its both ends is not a simply supported beam.

True

False

Incorrect

None of these

⇒ The assumption, generally, made in the theory of simple bending is that.

the beam material is perfectly homogenous and isotropic

the beam material is stressed within its elastic limit

the plane sections before bending remain plane after bending

all of the above

⇒ When a bar of length

*l*, width

*b*and thickness

*t*is subjected to a push of

*P*, its.

length, width and thickness increases

length, width and thickness decreases

length increases, width and thickness decreases

length decreases, width and tickness increases

⇒ In the below figure, the point

*B*represents upper yield point.

Correct

Incorrect

Maximum

None of these

⇒ If percentage reduction in area of a certain specimen made of material '

*A*' under tensile test is 60% and the percentage reduction in area of a specimen with same dimensions made of material '

*B*' is 40%, then

the material A is more ductile than material B

the material B is more ductile than material A

the ductility of material A and B is equal

the material A is brittle and material B is ductile

⇒ 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

⇒ The torsional rigidity of a shaft is expressed by the

maximum torque it can transmit

number of cycles it undergoes before failure

elastic limit upto which it resists torsion, shear and bending stresses

torque required to produce a twist of one radian per unit length of shaft

⇒ When two shafts of same length, one of which is hollow, transmit equal torques and have equal maximum stress, then they should have equal.

polar moment of inertia

polar modulus

diameter

angle of twist

⇒ Longitudinal stress in a thin cylinder is

equal to the hoop stress

twice the hoop stress

half of the hoop stress

one-fourth of hoop stress

⇒ If the tearing efficiency of a riveted joint is 50%, then ratio of rivet hole diameter to the pitch of rivets is?

0.20

0.30

0.50

0.60

⇒ The rivets are made from ductile material.

Yes

No

minimum

maximum

⇒ A beam extending beyond the supports is called.

simply supported beam

fixed beam

overhanging beam

cantilever beam

⇒ In the above question, the ratio of stiffness of spring '

*B*' to spring '

*A*' will be.

2

4

6

8

⇒ Which of the following statement is correct?

The energy stored in a body, when strained within elastic limit is known as strain energy.

The maximum strain energy which can be stored in a body is termed as proof resilience.

The proof resilience per unit volume of a material is known as modulus of resilience.

all of the above

⇒ A riveted joint in which the number otrivets decrease from innermost to outer most row is called

chain riveted joint

diamond riveted joint

cross-cross riveted joint

zig-zag riveted joint

⇒ In case of an under-reinforced beam, the depth of actual neutral axis is __________ that of the critical neutral axis.

same as

less than

greater than

Both (a) and (b)

⇒ A thin cylindrical shell of diameter (

*d*) length (

*l*) and thickness (

*t*) is subjected to an internal pressure (

*p*). The longitudinal stress in the shell is.

pd/t

pd/2t

pd/4t

pd/6t

⇒ A shaft of diameter

*D*is subjected to a twisting moment (

*T*) and a bending moment (

*M*). If the maximum bending stress is equal to maximum shear stress developed, then

*M*is equal to.

T/2

T

2T

4T

⇒ The deformation per unit length is called?

tensile stress

compressive stress

shear stress

strain

⇒ A beam is loaded as cantilever. If the load at the end is increased, the failure will occur

in the middle

at the tip below the load

at the support

anywhere

⇒ The property of a material which allows it to be drawn into a smaller section is called

plasticity

ductility

elasticity

malleability

⇒ The ratio of maximum shear stress developed in a rectangular beam and a circular beam of the same cross-sectional area is

2/3

3/4

1

9/8

⇒ A rod is enclosed centrally in a tube and the assembly is tightened by rigid washers. If the assembly is subjected to a compressive load, then.

rod is under compression

tube is under compression

both rod and tube are under compression

tube is under tension and rod is under compression

⇒ The bending moment of a cantilever beam of length

*l*and carrying a uniformly distributed load of

*w*per unit length is __________ at the fixed end.

wl/4

wl/2

wl

wl2/2

⇒ A boiler shell 200 cm diameter and plate thickness 1.5 cm is subjected to internal pressure of 1.5 MN/m , then the hoop stress will be

30 MN/m2

50 MN/m2

100 MN/m2

200 MN/m2

⇒ The materials having same elastic properties in all directions are called

ideal materials

uniform materials

isotropic materials

practical materials

⇒ When a body is subjected to two equal and opposite forces, acting tangentially across the resisting section, as a result of which the body tends to shear off across the section, the stress and strain induced is

tensile stress, tensile strain

compressive stress, compressive strain

shear stress, tensile strain

shear stress, shear strain

⇒ It equal and opposite forces applied to a body tend to elongate it, the stress so produced is called

internal resistance

tensile stress

transverse stress

compressive stress

⇒ When a rectangular beam is loaded transversely, the zero stress is developed on the neutral axis.

True

False

maximum

minimum

⇒ The polar moment of inertia of a hollow shaft of outer diameter (

*D*) and inner diameter (

*d*) is?

n/16(D3-d3)

n/16(D4-d4)

n/32(D4-d4)

n/64(D4-d4)