A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial load W, the energy stored in the spring, is______________?

Byadmin January 17, 2019June 4, 2021

A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial load W, the energy stored in the spring, is______________?

A. 4WD²n/d4N
B. 4W²Dn/d4N
C. 4W²D3n/d4N(Correct)
D. 4W²D3n²/d4N

Theory of Structures

In case of a simply supported I-section beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is_________________?

In case of a simply supported I-section beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is_________________?

A. L/2
B. L/3
C. L/4
D. L/5(Correct)

Read More In case of a simply supported I-section beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is_________________?
Theory of Structures

A simply supported beam carries varying load from zero at one end and w at the other end. If the length of the beam is a, the maximum bending moment will be_______________?

A simply supported beam carries varying load from zero at one end and w at the other end. If the length of the beam is a, the maximum bending moment will be_______________?

A. wa/27
B. wa²/27
C. w²a
D. wa²

Read More A simply supported beam carries varying load from zero at one end and w at the other end. If the length of the beam is a, the maximum bending moment will be_______________?
Theory of Structures

A material is said to be perfectly elastic if__________________?

A material is said to be perfectly elastic if__________________?

A. It regains its original shape on removal of the load
B. It regains its original shape partially on removal of the load
C. It does not regain its original shape at all
D. None of these

Read More A material is said to be perfectly elastic if__________________?
Theory of Structures

A shaft rotating N.R.M. under a torque T, transmits a power_______________?

A shaft rotating N.R.M. under a torque T, transmits a power_______________?

A. /30 Newton metres/sec(Correct)
B. /30 Newton metres/min
C. /60 Newton metres/min
D. /60 Newton metres/sec

Read More A shaft rotating N.R.M. under a torque T, transmits a power_______________?
Theory of Structures

In the truss shown in given figure, the force in member BD is______________?

In the truss shown in given figure, the force in member BD is______________?

A. 100 t compressive
B. 100 t tensile
C. Zero
D. Indeterminate

Read More In the truss shown in given figure, the force in member BD is______________?
Theory of Structures

parabolic arch of span and rise , is given by The equation of a________________?

parabolic arch of span and rise , is given by The equation of a________________?

A. y = h/l² × (1 – x )
B. y = 2h/l² × (1 – x)
C. y = 3h/l² × (1 – x)
D. y = 4h/l² × (1 – x)(Correct)

Read More parabolic arch of span and rise , is given by The equation of a________________?

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