When a column is fixed both ends, corresponding Euler’s critical load is

1.  (π2 EI)/L2

2.  (2π2 EI)/L2

3.  (3π2 EI)/L2

4.  (4π2 EI)/4L2

View Answer  
4
Correct Answer :

(4π2 EI)/4L2


Explanation :
No Explanation available for this question

A solid shaft can resist a bending moment of 3.0 KNm and a twisting moment of 4.0 kNm together, then the maximum torque that can be applied

1.  7.0 kNm

2.   3.5 kNm

3.  4.5 kNm

4.   5.0 kNm

View Answer  
4
Correct Answer :

 5.0 kNm


Explanation :
No Explanation available for this question

A small element at the critical section of a component is an bi-axial state of stress with the two principal stresses being 360 MPa and 140 MPa. The maximum working stress according to Distortion Energy Theory is

1.  220 MPa

2.  110 MPa

3.  314 MPa

4.  330MPa

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4
Correct Answer :

314 MPa


Explanation :
No Explanation available for this question

The design of a eccentrically loaded column needs revision when where, fc = calculated average axial compression stress fb = maximum allowable bending compressive stress on the extreme fibre, and f’c = calcium bending stress in the extreme fibre

1.  f’c /fe + f’b/fb

2.  f’c/fe - f’b/fb

3.  f’c /fe + f’b/fb >1

4.  f’c /fe - f’b/fb >1

View Answer  
4
Correct Answer :

f’c /fe + f’b/fb >1


Explanation :
No Explanation available for this question

For the two shafts connected in parallel, find which statement is true

1.  Toque in each shaft is the same

2.  Shear stress in each shaft is the same

3.  Angle of twist of each shaft is the same

4.  Torsional stiffness of each shift is the fail

View Answer  
4
Correct Answer :

Angle of twist of each shaft is the same


Explanation :
No Explanation available for this question

Under torsion, brittle materials generally fail

1.  Along a plane perpendicular to its longitudinal axis

2.  In the direction of minimum tension

3.  Along surfaces formatting a 450 angle with the longitudinal axis

4.  Not in any specific manner

View Answer  
4
Correct Answer :

Along surfaces formatting a 450 angle with the longitudinal axis


Explanation :
No Explanation available for this question

The bucking load will be maximum for a column, if

1.  One end of the column is clamped and the other end is free

2.  Both ends of the column are clamped

3.  Both ends of the column are hinged

4.  One end of the column is hinged and the other end is free

View Answer  
4
Correct Answer :

Both ends of the column are clamped


Explanation :
No Explanation available for this question

Heat and work are

1.  Intensive properties

2.  Extensive properties

3.  Point functions

4.  Path functions

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4
Correct Answer :

Path functions


Explanation :
No Explanation available for this question

The contents of a well-insulated tank are heated by a resistor of 23Ω in which 10A current is flowing. Consider the tank along with its contents as a thermodynamic system. The work done by the system and the heat transfer of the heat (Q), work (W) and change in internal energy (ΔU) during the process in kW are

1.  Q = 0, W = -2.3, ΔU = +2.3

2.  Q = + 2.3, W = 0, ΔU = +2.3

3.  Q = - 2.3, W = 0, ΔU = -2.3

4.  Q = 0, W = + 2.3, ΔU = -2.3

View Answer  
4
Correct Answer :

Q = 0, W = -2.3, ΔU = +2.3


Explanation :
No Explanation available for this question

A pump handling a liquid raises its pressure from 1 bar. Take the density of the liquid as 990 mg/m3. The isentropic specific work done by the pump in kJ/Kg is

1.  0.10

2.  0.30

3.  2.50

4.  2.93

View Answer  
4
Correct Answer :

2.93


Explanation :
No Explanation available for this question
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