One Stop GATE Forum: 1997- year ME GATE Paper

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1.  If   for  y=0 and   for  x=0,
     y<x  then   
  (a)  dy/dx is discontinuous at x = 0 
  (b)  y is discontinuous at x = 0 
  (c)  y is not defined at x = 0 
  (d)  both y and  dy/dx are discontinuous at x = 0 

2.  In a radiative heat transfer, a gray surface is one 
 (a)  which appears gray to the eye       
 (b)  whose emissivity is independent of wavelength 
 (c)  which has reflectivity equal to zero       
 (d)  which appears equally bright from all directions 

3.  The specific speed of a centrifugal compressor is generally 
 (a)  higher than that of an axial compressor  
 (b)  less than that of a reciprocating compressor  
 (c)  independent of the type  of  compressor,  but  depends    only   on  the size  of  the   compressor   
  (d) more than the specific speed of the reciprocating compressor but less that of     the axial compressor 

4.  Which among the following is the boiler mounting? 
    (a)  Blow off cock      (b)  Feed pump 
    (c)  Economiser         (d)  Superheater 

5.  A  system  undergoes  a  state  change  from  1  to  2.  According  the  second  law   of thermodynamics  for  the  process  to  be  feasible,  the  entropy  change,  S2  œ S1  of the system 
    (a)  is positive or zero     (b)  is negative or zero  
    (c)  is zero                 (d)  can be positive, negative or zero 

6.  Kaplan turbine is 
    (a)  a high head mixed flow turbine   (b)  a low axial flow    turbine   
    (c)  an outward flow reaction turbine (d)  an impulse inward flow turbine 

7.  The  alloying  element  mainly  used  to  improve  the  endurance  strength  of  steel materials is 
  (a)  Nickel                  (b)  Vanadium 
  (c)  Molybdenum      (d)  Tungston 

8.  On  completion  of  heat  treatment,  the  resulting  structure  will  have  retained Austenite if 
  (a)  rate of cooling is greater than the critical cooling rate   
  (b)  rate of cooling is less than the critical cooling rate   
  (c)  marten site formation starting temperature is above the room temperature 
  (d)  marten site formatin finish temperature is below the room temperature  

 9.  To restore stable operating condition in a hydrodynamic journal  bearing, when it 
encounters higher magnitude loads,    
  (a)  oil viscosity is to be decreased  (b)  oil viscosity is to be increased  
 (c)  oil viscosity index is to be increased   
 (d)  oil viscosity index is to be decreased 

10.  Total slip will occur in a belt drive when 
 (a)  angle of rest is zero    (b)  angle of creep is zero   
 (c)  angle of rest is greater than angle of creep   
 (d)  angle of creep is greater than angle of rest 

1.17  To make a worm drive reversible, it is necessary to increase 
 (a)  centre distance      (b)  worm diameter factor   
 (c)  number of starts      (d)  reduction ratio 

1.18  Helix angle of fast helix drill is normally 
 (a)  35°  (b)  60°  (c)  90°  (d) 5° 

1.19.  In  a point to  point control NC  machine, the slides are  positioned by an integrally 
mounted stepper motor  drive.  If  the  specification   of  the  motor is  1°/pulse, and 
the pitch of the lead screw is 3.6 mm, what is the expected positioning accuracy? 
  (a)  1  m  (b)  10  m  (c)  50  m  (d) 100  m 

1.20.  Selection electrolyte for ECM is as follows: 
 (a)  non-passivating electrolyte  for  stock  removal and  passivating  electrolyte for 
finish control       
  (b)  passivating  electrolyte  for  stock  removal  and non-passivating  electrolyte for 
finish control 
  (c)  selection of electrolyte is dependent on current density       
 (d)  electrolyte selection is based on tool-work electrodes 

1.21.  Inter electrode gap in ECG is controlled by 
 (a)  controlling the pressure of electrolyte flow       
 (b)  controlling the applied static load 
 (c)  controlling the size of diamond particle in the wheel       
 (d)  controlling the texture of the work piece  

1.22.  The most commonly used criteria for measuring forecast error is   
 (a)  mean absolute deviation  (b)  mean absolute percentage error 
 (c)  mean standard error    (d)  mean square error 

1.23.  Setup costs do not include 
 (a)  labour cost of setting up machines  (b)  ordering cost of raw material   
 (c)  maintenance cost of the machines  (d)  cost of processing the work piece  

1.24.  A dummy activity is used in PERT network to describe 
 (a)  precedence relationship  (b)  necessary time delay 
 (c)  resource restriction    (d)  resource idleness 

1.25  The cost of providing service in a queuing system increases with  
 (a)  increased mean time in the queue  (b)  increased arrival rate 
 (c)  decreased mean time in the queue  (d)  decreased arrival rate 

2.1  A box contains 5 black balls and 3 red balls. A total of three balls are picked from 
the box one after another, without replacing them back. The probability of getting 
two black balls and one red ball is 
  (a) 3   (b) 2    (c)  15   (d)  1

2.2.  A  triangle  ABC consists  of vertex  points  A(0,0)  B(1,0) and  C(0,1).  The  value  of the integral  2xdxdy  over the triangle is 
  (a)  1  (b)  3   (c)  8   (d)   9  

Edited by Smitha - 14Feb2007 at 12:51pm

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Smitha Newbie Joined: 08Feb2007 Online Status: Offline Posts: 14	Topic: 1997- year ME GATE Paper Posted: 14Feb2007 at 12:50pm
	1. If for y=0 and for x=0, y<x then (a) dy/dx is discontinuous at x = 0 (b) y is discontinuous at x = 0 (c) y is not defined at x = 0 (d) both y and dy/dx are discontinuous at x = 0 2. In a radiative heat transfer, a gray surface is one (a) which appears gray to the eye (b) whose emissivity is independent of wavelength (c) which has reflectivity equal to zero (d) which appears equally bright from all directions 3. The specific speed of a centrifugal compressor is generally (a) higher than that of an axial compressor (b) less than that of a reciprocating compressor (c) independent of the type of compressor, but depends only on the size of the compressor (d) more than the specific speed of the reciprocating compressor but less that of the axial compressor 4. Which among the following is the boiler mounting? (a) Blow off cock (b) Feed pump (c) Economiser (d) Superheater 5. A system undergoes a state change from 1 to 2. According the second law of thermodynamics for the process to be feasible, the entropy change, S2 œ S1 of the system (a) is positive or zero (b) is negative or zero (c) is zero (d) can be positive, negative or zero 6. Kaplan turbine is (a) a high head mixed flow turbine (b) a low axial flow turbine (c) an outward flow reaction turbine (d) an impulse inward flow turbine 7. The alloying element mainly used to improve the endurance strength of steel materials is (a) Nickel (b) Vanadium (c) Molybdenum (d) Tungston 8. On completion of heat treatment, the resulting structure will have retained Austenite if (a) rate of cooling is greater than the critical cooling rate (b) rate of cooling is less than the critical cooling rate (c) marten site formation starting temperature is above the room temperature (d) marten site formatin finish temperature is below the room temperature 9. To restore stable operating condition in a hydrodynamic journal bearing, when it encounters higher magnitude loads, (a) oil viscosity is to be decreased (b) oil viscosity is to be increased (c) oil viscosity index is to be increased (d) oil viscosity index is to be decreased 10. Total slip will occur in a belt drive when (a) angle of rest is zero (b) angle of creep is zero (c) angle of rest is greater than angle of creep (d) angle of creep is greater than angle of rest 1.17 To make a worm drive reversible, it is necessary to increase (a) centre distance (b) worm diameter factor (c) number of starts (d) reduction ratio 1.18 Helix angle of fast helix drill is normally (a) 35° (b) 60° (c) 90° (d) 5° 1.19. In a point to point control NC machine, the slides are positioned by an integrally mounted stepper motor drive. If the specification of the motor is 1°/pulse, and the pitch of the lead screw is 3.6 mm, what is the expected positioning accuracy? (a) 1 m (b) 10 m (c) 50 m (d) 100 m 1.20. Selection electrolyte for ECM is as follows: (a) non-passivating electrolyte for stock removal and passivating electrolyte for finish control (b) passivating electrolyte for stock removal and non-passivating electrolyte for finish control (c) selection of electrolyte is dependent on current density (d) electrolyte selection is based on tool-work electrodes 1.21. Inter electrode gap in ECG is controlled by (a) controlling the pressure of electrolyte flow (b) controlling the applied static load (c) controlling the size of diamond particle in the wheel (d) controlling the texture of the work piece 1.22. The most commonly used criteria for measuring forecast error is (a) mean absolute deviation (b) mean absolute percentage error (c) mean standard error (d) mean square error 1.23. Setup costs do not include (a) labour cost of setting up machines (b) ordering cost of raw material (c) maintenance cost of the machines (d) cost of processing the work piece 1.24. A dummy activity is used in PERT network to describe (a) precedence relationship (b) necessary time delay (c) resource restriction (d) resource idleness 1.25 The cost of providing service in a queuing system increases with (a) increased mean time in the queue (b) increased arrival rate (c) decreased mean time in the queue (d) decreased arrival rate 2.1 A box contains 5 black balls and 3 red balls. A total of three balls are picked from the box one after another, without replacing them back. The probability of getting two black balls and one red ball is (a) 3 (b) 2 (c) 15 (d) 1 2.2. A triangle ABC consists of vertex points A(0,0) B(1,0) and C(0,1). The value of the integral 2xdxdy over the triangle is (a) 1 (b) 3 (c) 8 (d) 9 Edited by Smitha - 14Feb2007 at 12:51pm Post Resume: Click here to Upload your Resume & Apply for Jobs

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