A stone of mass m at the end of a string of length l is whirled in a vertical circle at a constant speed. The tension in the string will be maximum when the stone is

1.  At the top of the circle

2.  half-way down from the top

3.  quarter Was down from the top

4.  at the bottom of the circle

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4
Correct Answer :

at the bottom of the circle


Explanation :
No Explanation available for this question

Net force on a control volume due to uniform normal pressure alone

1.  Depends upon the shape of the control volume

2.  Translation and rotation

3.  Translation and deformation

4.  Deformation only

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4
Correct Answer :

Translation and deformation


Explanation :
No Explanation available for this question

A shell is fired from cannon with a speed at an angle with the horizontal Direction. At the highest point in its path it explodes into two pieces of equal mass. One of the pieces retraces its path to the cannon. The speed of other piece immediately after explosion is

1.  3v cos θ

2.  2v cos θ

3.  3/2 v cos θ

4.  √3/2 v cos θ 

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4
Correct Answer :

2v cos θ


Explanation :
No Explanation available for this question

Figure below shows a rigid bar hinged at A and supported in a horizontal by two vertical identical steel wires.  Neglect the weight of the beam. The tension T1 and T2 induced in these wires by a vertical load P applied as shown arc  

1.  T1 = T2 =P/2

2.  T1 = T2 =P

3.    T1=pb1/(a2+b2), T2=pb1/(a2+b2)

4.  T1=pb1/2(a2+b2), T2=pb1/2(a2+b2)

View Answer  
4
Correct Answer :

T1 = T2 =P


Explanation :
No Explanation available for this question

Existence of velocity potential implies that

1.  Fluid is in continuum

2.  Fluid is irrotational

3.  Fluid is ideal

4.  Fluid is compressible

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4
Correct Answer :

Fluid is irrotational


Explanation :
No Explanation available for this question

For the  case of a slender column of length l and flexural rigidity EI built-in at its base and free at the top, the Euler‘s critical buckling load is

1.  4π2EI/l2

2.  2π2EI/l2

3.  π2EI/l2

4.  π2EI/4l2 

View Answer  
4
Correct Answer :

π2EI/4l2 


Explanation :
No Explanation available for this question

A mass m attached to a light spring oscillates with a period of 2 seconds.  If the mass is increased by 2 kg, the period increases by 1 second. The value of m is

1.  1 kg

2.  1.6 kg

3.  2 kg

4.  2.4 kg

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4
Correct Answer :

1.6 kg


Explanation :
No Explanation available for this question

Two  shafts  A  and  B  are  made  of  the  same  material.  The diameter of shaft B is twice that of shaft A. The ratio of power which can be transmitted by shaft A to that of shaft B is:

1.  ½

2.  ¼

3.  1/8

4.  1/16

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4
Correct Answer :

1/8


Explanation :
No Explanation available for this question

A gas turbine cycle with infinitely large number of stages during compression and expansion leads to

1.  Stirling cycle

2.  Atkinson cycle

3.  Ericsson cycle

4.  Brayton cycle

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4
Correct Answer :

Ericsson cycle


Explanation :
No Explanation available for this question

The definition of 1 K as per the internationally accepted temperature scale is

1.  1/100 th the difference between normal boiling point and normal freezing point of water

2.  1/273.15 th the normal freezing point of water

3.  100  times  the  difference  between  the  triple  point  of  water  and  the  normal freezing point of water

4.  1/273.16 th of the triple point of water

View Answer  
4
Correct Answer :

1/273.16 th of the triple point of water


Explanation :
No Explanation available for this question
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