Match items from groups I, II, III, IV and V. Group I Group II Group III Group IV Group V   When added to the system, is Differential Function Phenomenon E Heat G Positive I Exact % Path M Transient F Work H Negative J Inexact L Pont N Boundary  

1.  F – G – J – K – M E – G – I – K – N

2.   E – G – I – K – M F – H –I – K – N

3.  F – H –J – L – N E – H – I – L – M

4.  E – G – J – K – N F – H – J – K – M

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Correct Answer :

E – G – J – K – N

F – H – J – K – M


Explanation :
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NC contouring is an example of

1.  continuous path positioning

2.    point-to-point positioning

3.  absolute positioning

4.   incremental positioning

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4
Correct Answer :

continuous path positioning


Explanation :
No Explanation available for this question

Group I shows different heat addition processes in power cycles. Likewise, Group II shows different heat removal processes. Group III lists power cycles. Match items from Groups I, II and III. Group I Group II Group III P. Pressure constant S. Pressure constant 1. Rankne cycle Q. Volume constant T. Volume constant 2. Otto cycle R. Temperature constant U. Temperature constant 3. Carnot cycle     4. Diesel cycle     5. Brayton cycle

1.  P-S-5, R-U-3, P-S-1, Q-T-2

2.  P-S-1, R-U-3, P-S -4, P-T-2

3.  R-T-3, P-S-1, P-T-4, Q-S-5

4.  P-T-4, R-S -3, P-S-1, P-S-5

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Correct Answer :

P-S-5, R-U-3, P-S-1, Q-T-2


Explanation :
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A ring gage is used to measure

1.  outside diameter but not roundness

2.  roundness but not outside diameter

3.  both outside diameter and roundness

4.    only external threads

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Correct Answer :

both outside diameter and roundness


Explanation :
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With an increase in thickness of insulation around a circular ppe, heat loss to surroundings due to

1.  convection increases, while that due to conduction decreases

2.   convection decreases, while that due to conduction increases

3.  convection and conduction decreases

4.  convection and conduction increases

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Correct Answer :

convection increases, while that due to conduction decreases


Explanation :
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  The number of customers arriving at a railway reservation counter is Poisson distributed with an arrival rate of eight customers per hour. The reservation clerk at this counter takes six minutes per customer on an average with an exponentially distributed service time. The average number of the customers in the queue will be

1.  3

2.  3.2

3.  4

4.  4.2

View Answer  
4
Correct Answer :

3


Explanation :
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The ultimate tensile strength of a material is 400 MPa and the elongation up to maximum load is 35%. If the material obeys power law of hardening, then the true stress-true strain relation (stress in MPa) in the plastic deformation range is:

1.  σ=540 ε0.30

2.   σ=775 ε0.30

3.  σ=540 ε0.35

4.  σ=775 ε0.35

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4
Correct Answer :

σ=540 ε0.30


Explanation :
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In an MRP system, component demand is:

1.  forecasted

2.  established by the master production schedule

3.  calculated by the MRP system from the master production schedule

4.  ignored

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4
Correct Answer :

calculated by the MRP system from the master production schedule


Explanation :
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In a sand casting operation, the total liquid head is maintained constant such that it is equal to the mould height. The time taken to fill the mould with a top gate is tA. If the same mould is fled with a bottom gate, then the time taken is tB. Ignore the time required to fill the runner and frictional effects. Assume atmospheric pressure at the top molten metal surfaces. The relation between tA and tB is:

1.  tB=√2 tA

2.  tB=2 tA

3.   tB=tA /√2

4.  tB=2√2 tA

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4
Correct Answer :

tB=2 tA


Explanation :
No Explanation available for this question

A 4 mm thick sheet is rolled with 300 mm diameter rolls to reduce thickness without any change in its width. The friction coefficient at the work-roll interface is 0.1. The minimum possible thickness of the sheet that can be produced in asingle pass is:

1.  1.0 mm

2.  1.5 mm

3.  2.5 mm

4.   3.7 mm

View Answer  
4
Correct Answer :

2.5 mm


Explanation :
No Explanation available for this question
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