What are the four basic forms of deformation of solid bodies?
ATension, compression, bending, and twisting
BTension, compression, elongation, and bending
CTension, compression, plastic, and elastic
DTension, compression, elongation, torsion
ESAS · Question Bank
Mechanics
122 questions · page 1 of 7. Answer in your head first, then check the solution.
What is a structural member supported horizontally and carries transverse loading?
ABeam
BColumn
CArch
DShaft
Which of the ff structural member is used in the transmission of torque and twist?
ATube
BColumn
CPanel
DShaft
What refers to a slender member which prevents parts of structure moving towards each other under compressive force?
ATie
BColumn
CStrut
DArch
What refers to the point in which the bending moment changes sign through a zero value?
ACritical point
BPoint of inflection
CPoint of contraflexure
DPoint of zero stress
What is the unit of strain?
APascal
BUnitless
CN-m
DN-m/s
Volumetric strain is the:
Achange in volume per unit time
Bsquare root of difference of original volume and change in volume
Coriginal volume minus change in volume
Dratio of change in volume to original volume
What refers to the stress in the material at the elastic limit?
AWorking stress
BYield stress
CUltimate stress
DMaximum stress
Which of the ff materials has the least modulus of elasticity?
ASteel
BGlass
CCopper
DAluminum
Within elastic limit, the shear stress is proportional to shear strain. What is the constant of proportionality of this statement called?
AModulus of rigidity
BModulus of elasticity
CYoungs' Modulus
DBulk Modulus
What is the unit of the modulus of elasticity?
AN-m
BUnitless
CPa
DN-m/s
Within elastic limit, the volumetric strain is proportional to the hydrostatic stress. What is the constant that relates these two quantities called?
AModulus of rigidity
BModulus of elasticity
CYoung's Modulus
DBulk Modulus
What is the another term for modulus of rigidity?
AShear modulus
BYoungs' modulus
CBulk modulus
DModulus of elasticity
How many times greater is the plastic range of strain as compared to the elastic range of strain?
A100
B200
C300
D400
What does it mean when the material is said to be "yielding"?
AThe material has pass through plastic range and enter the elastic range
BThe material has pass through elastic range and enter the plastic range
CThe material is in the elastic range only
DThe material is in the plastic range only
What refers to the parallel axis theorem for second moment of area?
AMohr's theorem
BSteiner's theorem
CMaxwell's theorem
DYoung's theorem
The elastic deformation of a material is:
Adirectly proportional to cross-sectional area of the material
Binversely proportional to the modulus of elasticity of material
Cinversely proportional to the force acting on the material
Dinversely proportional to the initial length of the material
The stress energy of a member is:
Ainversely proportional to the square of the force acting on the member
Bdirectly proportional to the modulus of elasticity
Cinversely proportional to the cross-sectional area of the member
Dinversely proportional to the initial length of the member
Stiffness is:
Aratio of force to deformation
Bratio of force to modulus of elasticity
Cratio of product of cross-sectional area and initial length to deformation
Dratio of initial length to cross-sectional area
Which of the ff substances has the least average coefficient of linear thermal expansion?
ACopper
BConcrete
CSteel
DTin