A 1 kg block is resting on a surface with coefficient of friction µ =  0.1. A force of 0.8N is applied to the block as shown in figure. The friction force is

1.  0

2.  0.8N

3.  0.98N

4.  1.2N

View Answer  
4
Correct Answer :

0.8N


Explanation :
No Explanation available for this question

Consider the following system of equations 2x1+x2+x3=0 X2-x3=0 X1+x2=0 This system has

1.  A unique solution

2.  No solution

3.  Infinite number of solution

4.  Five solutions

View Answer  
4
Correct Answer :

Infinite number of solution


Explanation :
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A single–point cutting tool with 120 rake angle is used to machine a steel work–piece. The depth of cut, i.e. uncut thickness is 0.81mm. The chip thickness under orthogonal machining condition is 1.8mm. The shear angle is approximately

1.  220

2.  260

3.  560

4.  760

View Answer  
4
Correct Answer :

260


Explanation :
No Explanation available for this question

Match  the  following non-traditional machining processes with  the  corresponding material removal mechanisms : Machining process                                                              Mechanism of material removal P.    Chemical machining                                                              1.   Erosion Q.   Electro-chemical machining                                                 2.   Corrosive reaction R.    Electro – discharge machining                                              3.   Ion displacement S.    Ultrasonic machining                                                     4.   Fusion and vaporization

1.  P-2, Q-3, R-4,S-1

2.  P-2,Q-4,R-3,S-1

3.  P-3, Q-2,R-4,S-1

4.  P-2,Q-3,R-1,S-4

View Answer  
4
Correct Answer :

P-2, Q-3, R-4,S-1


Explanation :
No Explanation available for this question

A cubic  casting of 50mm  side undergoes volumetric  solidification shrinkage and volumetric  solid  contraction  of  4%  and  6%  respectively.  No.  riser  is  used. Assume uniform cooling in all directions. The side of the cube after solidification and contraction is

1.  48.32mm

2.  49.90mm

3.  49.94mm

4.  49.96mm

View Answer  
4
Correct Answer :

48.32mm


Explanation :
No Explanation available for this question

The density of air in kg/m3 at the nozzle exit is

1.  0.560

2.  0.600

3.  0.727

4.  0.800

View Answer  
4
Correct Answer :

0.560


Explanation :
No Explanation available for this question

Choose  the word  from  the  options  given  below  that  is most  nearly  opposite  in meaning to the given word: Amalgamate

1.  Merge

2.  Split

3.  Collect

4.  Separate

View Answer  
4
Correct Answer :

Split


Explanation :
No Explanation available for this question

Which of the following options is the closest in the meaning to the word below: Inexplicable

1.  Incomprehensible

2.  Indelible

3.  Inextricable

4.  Infallible

View Answer  
4
Correct Answer :

Incomprehensible


Explanation :
No Explanation available for this question

If Log (P) = (1/2)Log (Q) = (1/3) Log (R), then which of the following options is TRUE

1.  P2=Q3R2

2.  Q2=PR

3.  Q2=R3P

4.  R=P2Q2

View Answer  
4
Correct Answer :

Q2=PR


Explanation :
No Explanation available for this question

Choose  the most appropriate word(s)  from  the options given below  to complete the following sentence. I contemplated________Singapore  for my vacation but decided against it.

1.  To visit

2.  having to visit

3.  visiting

4.  for a visit

View Answer  
4
Correct Answer :

visiting


Explanation :
No Explanation available for this question
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