A  thin  cylinder  of  inner  radius 500mm  and  thickness 10mm  is  subjected  to  an internal pressure of 5MPa. The average circumferential (hoop) stress in MPa is

1.  100

2.  250

3.  500

4.  1000

View Answer  
4
Correct Answer :

250


Explanation :
No Explanation available for this question

Which  one  among  the  following  welding  processes  uses  non-consumable electrode

1.  Gas metal arc welding

2.  Submerged arc welding

3.  Gas tungsten arc welding

4.  Flux coated arc welding

View Answer  
4
Correct Answer :

Gas tungsten arc welding


Explanation :
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The crystal structure of austenite is

1.  Body centered cubic

2.  Face centered cubic

3.  Hexagonal closed packed

4.  Body centered tetragona

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4
Correct Answer :

Face centered cubic


Explanation :
No Explanation available for this question

A torque T is applied at the free end of a stepped rod of circular cross-sections as shown  in  the  figure.  The  shear  modulus  of  the  material  of  the  rod  is  G.  The expression for d to produce an angular twist  θ  at the free end is

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

Figure  shows  the  schematic  for  the measurement  of  velocity  of  air  (density =1.2kg/m3) through  a  constant–area  duct  using  a  pitot  tube  and  a water-tube  manometer.  The  differential  head  of water  (density =  1000 kg/m3) in  the  two columns  of  the  manometer  is  10mm.  Take  acceleration  due  to  gravity  as 9.8m/s2. The velocity of air in m/s is

1.  6.4

2.  9.0

3.  12.8

4.  25.6

View Answer  
4
Correct Answer :

12.8


Explanation :
No Explanation available for this question

The values of enthalpy of steam at  the  inlet and outlet of a steam  turbine  in a Rankine cycle are 2800kJ/kg and 1800kJ/kg respectively. Neglecting pump work, the specific steam consumption in kg/kW-hour is

1.  3.60

2.  0.36

3.  0.06

4.  0.01

View Answer  
4
Correct Answer :

3.60


Explanation :
No Explanation available for this question

The  integral when  evaluated  by using  Simpson’s 1/3  rule  on  two  equal subintervals each of length 1, equals

1.  1.000

2.  1.098

3.  1.111

4.  1.120

View Answer  
4
Correct Answer :

1.111


Explanation :
No Explanation available for this question

Two  identical  ball  bearings  P  and  Q  are  operating  at  loads  30kN  and  45kN respectively. The ratio of the life of bearing P to the life of bearing Q is

1.  81/16

2.  27/8

3.  9/4

4.  3/2

View Answer  
4
Correct Answer :

27/8


Explanation :
No Explanation available for this question

For  the four-bar linkage shown  in  the  figure, the angular velocity of link AB is 1 rad/s. the length of link CD is 1.5 times the length of link AB. In the configuration shown, the angular velocity of link CD in rad/s is

1.  3

2.  3/2

3.  1

4.  2/3

View Answer  
4
Correct Answer :

2/3


Explanation :
No Explanation available for this question

A stone with mass of 0.1kg  is catapulted as shown  in  the  figure. The total  force Fx (In N) exerted by the rubber band as a function of distance x (in m) is given by Fx=300x2. If  the  stone  is  displaced  by  0.1m  from  the  un-stretched  position  (x=0) of the rubber band, the energy stored in the rubber band is

1.  0.01J

2.  0.1J

3.  1J

4.  10J

View Answer  
4
Correct Answer :

0.1J


Explanation :
No Explanation available for this question
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