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April 11th, 2015, 02:29 PM
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Re: ONGC Mechanical Engineering Question Paper

As per your request I am providing you sample questions of mechanical engineering paper.


Q1 For a Newtonian fluid:

(a) Shear stress is proportional to shear strain.
(b) Rate of Shear stress is proportional to shear strain.
(c)Shear stress is proportional to rate of shear strain.
(d) Rate of shear stress is proportional to rate of shear strain.

Q2 The number of inversions for a slider crank mechanism is
(a) 6
(b) 5
(c) 4
(d) 3

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Q3 Dew point temperature is temperature at which condesation begins when the air is cooled at constant
(a) Volume
(b) Entropy
(c) pressure
(d) Enthalpy

Q4 In a pelton wheel, the bucket peripheral speed is 10m/s, the water jet velocity is 25m/s and volumetric flow rate of the jet is 0.1m3/s. If the jet deflection angle is 120 degrees and the flow is ideal, the power developed is
(a) 7.5 KW
(b)15.0 KW
(c)22.5 KW
(d) 37.5 KW

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Q5 An expandable pattern is used in
(a) Slush Casting
(b) Squeeze casting
(c) Centrifugal Casting
(d) Investment Casting

Q6 The main purpose of spheroidising treatment is to improve
(a) hardenability of low carbon steels
(b) machinability of low carbon steels
(c) hardenability of high carbon steels
(d) machinability of high carbon steels

Q7 NC countering is an example of
(a) Continuous path positoning
(b) Point to point positioning
(c) Absolute positioning
(d) Incremental positioning

Q8 A ring gauge is used to measure
(a) outside roundness but not roundness
(b) roundness but not outside diameter
(c) both outside diameters and roundness
(d) only external threads

Q9 Match the items in columns I and II

Column I Column II
A. Addendum 1. Cam
B.Instantaneous center of velocity 2. Beam
C. Section Modulus 3. Linkage
D. Prime Circle 4. Gear

(a) A-4 B-2 C-3 D-1
(b) A-4 B-3 C-2 D-1
(a) A-3 B-2 C-1 D-4
(a) A-3 B-4 C-1 D-2

Q10 A disk clutch is required to transmit 5KW at 2000 rpm. The disk has a friction limit with coefficient of friction equal to 0.25 . bore radius of friction lining is equal to 25mm. Assume uniform contact pressure of 1MPa. The value of outside radius of the friction lining is:
(a) 39.4mm
(b) 49.5mm
(c) 97.9mm
(d) 142.9mm

Q11 Twenty degree full depth involute profiled 19-tooth pinion and 37 tooth gear are in mesh. If the module is 5mm, the center distance between gear pair will be
(a) 140 mm
(b) 150 mm
(c) 280 mm
(d) 300 mm

Q12 A large hydraulic turbine is to generate 300KW at 1000 rpm under a head of 40m. For initial testing, a 1:4 scale model of turbine operators under a head of 10m. The power generated by the model (in KW) will be
(a) 2.34
(b) 4.68
(c) 9.38
(d) 18.75

Q13. A steel bar of 40mm X 40mm square cross section is subjected to an axial compressive load of 200KN. IF the length of bar is 2m and E =200 GPa, the elongation of the bar will be
(a) 1.25mm
(b) 2.70mm
(c) 4.05mm
(d) 5.40mm

Q14. IF the Cf is the coefficient of speed fluctuation of flywheel then the ratio of w max/ w min will be
(a) (1-2Cf)/(1+2Cf)
(a) (2-cf)/(1+2Cf)
(a) (1+2Cf)/(1-2Cf)
(d) (2+Cf)(2-Cf)

Q15 If a system is in equilibrium and the position of system depends upon many independent variables, the principal of virtual work states that the partial derivatives of its total potential energy with repsect to each of the independent variable must be
(a) -1.0
(b) 0
(c) 1.0
(d)∞

Q16) Match the items in Column I and Column II
Column I Column II
P.Higher kinematic pair 1. Grubler’s Equation
Q. Lower Kinematic pair 2. Line Contact
R. Quick Return Mechanism 3. Euler’s equation
S. Mobility of a linkage 4. Planer
5. Shaper
6. Surface contact
(a) P-2,Q-6,R-4,S-3
(b) P-6,Q-2,R-4,S-1
(c) P-6,Q-2,R-5,S-3
(d) P-2,Q-6,R-5,S-1

Q 17 A machine of 250kg mass is supported on springs of total stifness 100 KN/m. Machine has an unbalanced rotating force of 350 N at speed of 3600 rpm. Assume a damping factor of 0.15, the value of transmissibility ratio is
(a) 0.0531
(b) 0.9922
(c) 0.0162
(d) 0.0028

Q18 A 60mm long and 6mm thick fillet weld carries a steady load of 15KN along the weld. The shear strength of weld material is equal to 200MPa. The factor of safety is
(a) 2.4
(b) 3.4
(c) 4.8
(d) 6.8

Q19. A two dimensional flow field has velocities along the x and y directions given by u= x2t and v= -2xyt respectively where t is time. The equation of streamlines is
(a) x2y= Constant
(b) xy2= Constant
(c) xy = Constant
(d) not possible to determine

Q20 The velocity profile in fully developed laminar flow in a pipe of diameter D is given by u=u0(1-4r2/D2), where r is radial distance from the center. If the viscosity of the fluid is µ, The pressure drop across a length L of the pipe is

(a) (µu0L)/D2
(b) 4(µu0L)/D2
(c) 8(µu0L)/D2
(d) 16(µu0L)/D2

For more sample paper please check the below attached file.

ONGC reasoning sample paper

1. six members of a familyare travelling these are a,b,c,d,e, and f. b is
the son of c but c is not mothers of b. a and c are a married couple, e
is the brother of c. d is the daughter of a. f is the brother of b.
who is the wife of e:
(a) a
(b)f
(c)b
(d) cant be determined
2.six members of a familyare travelling these are a,b,c,d,e, and f. b is
the son of c but c is not mothers of b. a and c are a married couple, e
is the brother of c. d is the daughter of a. f is the brother of b.
which of following is pair of female
(a)ae
(b)bd
(c)df
(d)ad
3. six members of a familyare travelling these are a,b,c,d,e, and f. b is
the son of c but c is not mothers of b. a and c are a married couple, e
is the brother of c. d is the daughter of a. f is the brother of b.
how is e related to d:
(a) father
(b)brother
(c)uncle
(d)none of these
4.there is a group of five teachers a,b,c,d and e
- b and c teaches maths and geography
- a and c teach maths and history
- b and d teach political science and geofraphy
- d and e tech political science and biology
- e teaches biology, history, and political science
who teaches political science, geography and biology
(a)e
(b)d
(c)c
(d)b
5. there os a group of five teachers a,b,c,d and e
- b and c teaches maths and geography
- a and c teach maths and history
- b and d teach political science and geofraphy
- d and e tech political science and biology
- e teaches biology, history, and political science
who teaches in mathematics, political science and geography:
(a) a
(b)b
(c)d
(d)e
6. there os a group of five teachers a,b,c,d and e
- b and c teaches maths and geography

- a and c teach maths and history
- b and d teach political science and geofraphy
- d and e tech political science and biology
- e teaches biology, history, and political science
who teaches maths, geography and history
(a) c
(b)e
(c)a
(d)b
7. there os a group of five teachers a,b,c,d and e
- b and c teaches maths and geography
- a and c teach maths and history
- b and d teach political science and geofraphy
- d and e tech political science and biology
- e teaches biology, history, and political science
who teaches maths, geography and history
(a) e
(b)a
(c)d
(d)c
8.there os a group of five teachers a,b,c,d and e
- b and c teaches maths and geography
- a and c teach maths and history
- b and d teach political science and geofraphy
- d and e tech political science and biology
- e teaches biology, history, and political science
who teaches political science, history and biology
(a)a
(b)b
(c)c
(d)e
9.1.gita, ravi and suresh are children of. mr. and mrs. khanna
2. renu,raja and sumit are children of mr. and mrs. chopra
3. sumit and gita are married and ashok and sanjay their children
4. garima and ram are children of mr. and mrs. chawla/
5 garima is married to suresh and has three children rata,sonu,raju
how is ravi related to raju
(a)brother
(b)uncle
(c)cousin
(d)maternal uncle
10.1.gita, ravi and suresh are children of. mr. and mrs. khanna
2. renu,raja and sumit are children of mr. and mrs. chopra
3. sumit and gita are married and ashok and sanjay their children
4. garima and ram are children of mr. and mrs. chawla/
5 garima is married to suresh and has three children rata,sonu,raju
how ravi related to ashok
(a)maternal uncle
(b)cousin
(c)brother in law

(d)father in law
11.1.gita, ravi and suresh are children of. mr. and mrs. khanna
2. renu,raja and sumit are children of mr. and mrs. chopra
3. sumit and gita are married and ashok and sanjay their children
4. garima and ram are children of mr. and mrs. chawla/
5 garima is married to suresh and has three children rata,sonu,raju
how is ram related to suresh:
(a)brother
(b)cousin
(c)uncle
(d)brother in law
12. 1.gita, ravi and suresh are children of. mr. and mrs. khanna
2. renu,raja and sumit are children of mr. and mrs. chopra
3. sumit and gita are married and ashok and sanjay their children
4. garima and ram are children of mr. and mrs. chawla/
5 garima is married to suresh and has three children rata,sonu,raju
what is the surname of sanjay:
(a) chawla
(b) chopra
(c) khanna
(d) suresh
13. 1.gita, ravi and suresh are children of. mr. and mrs. khanna
2. renu,raja and sumit are children of mr. and mrs. chopra
3. sumit and gita are married and ashok and sanjay their children
4. garima and ram are children of mr. and mrs. chawla/
5 garima is married to suresh and has three children rata,sonu,raju
how is ram related to rita:
(a) brother
(b) uncle
(c) maternal uncle
(d) cousin
14. 1.gita, ravi and suresh are children of. mr. and mrs. khanna
2. renu,raja and sumit are children of mr. and mrs. chopra
3. sumit and gita are married and ashok and sanjay their children
4. garima and ram are children of mr. and mrs. chawla/
5 garima is married to suresh and has three children rata,sonu,raju
renu is sanjay's ----------
(a) sister
(b)sister in law
(c)aunty
(d)cousin
15. 1.gita, ravi and suresh are children of. mr. and mrs. khanna
2. renu,raja and sumit are children of mr. and mrs. chopra
3. sumit and gita are married and ashok and sanjay their children
4. garima and ram are children of mr. and mrs. chawla/
5 garima is married to suresh and has three children rata,sonu,raju
raju's sur name is:
(a) chawla
(b)khanna

(c)chopra
(d)none of these
16. 1.gita, ravi and suresh are children of. mr. and mrs. khanna
2. renu,raja and sumit are children of mr. and mrs. chopra
3. sumit and gita are married and ashok and sanjay their children
4. garima and ram are children of mr. and mrs. chawla/
5 garima is married to suresh and has three children rata,sonu,raju
sumit and suresh are related as:
(a) brother in law
(b)cousin
(c)brother
(d)uncle
17. 1.gita, ravi and suresh are children of. mr. and mrs. khanna
2. renu,raja and sumit are children of mr. and mrs. chopra
3. sumit and gita are married and ashok and sanjay their children
4. garima and ram are children of mr. and mrs. chawla/
5 garima is married to suresh and has three children rata,sonu,raju
how sonu related to ravi.
(a) brother
(b)brother in law
(c)nephew
(d)father
18.1.gita, ravi and suresh are children of. mr. and mrs. khanna
2. renu,raja and sumit are children of mr. and mrs. chopra
3. sumit and gita are married and ashok and sanjay their children
4. garima and ram are children of mr. and mrs. chawla/
5 garima is married to suresh and has three children rata,sonu,raju
how garima is related to mr. & mrs. khanna:
(a)daughter
(b)neice
(c)sister in law
(d)daughter in law
19. 1.gita, ravi and suresh are children of. mr. and mrs. khanna
2. renu,raja and sumit are children of mr. and mrs. chopra
3. sumit and gita are married and ashok and sanjay their children
4. garima and ram are children of mr. and mrs. chawla/
5 garima is married to suresh and has three children rata,sonu,raju
how ashok and sanjay are lated to mr. mrs. copra:
(a)sons
(b)nephews
(c)grand son
(d)none of these
20. in the office amongst staff a,b,c,d ,e of g. h there is only
computer. a programe has to be made and can be made by only one person at
a time. the office has 3 shifts, the morning shift from 6 am-12 am has 3
staff, afternoon shift from 12am. to 6 pm. has 3 staff, evening shift
from 6 pm to 12 pm has 2 staff one of the person did not used a printer:
1 b is the last person who use the computer
2 h use the computer after a and came iwth a

3 d used the computer after h and come with h but before e
4 c used the computer before b but arrived after e
5 a use the computer before f and arrived before g
if g used a computer justbefore c who use 4:
(a) a
(b)b
(c)e
(d)d
21. in the office amongst staff a,b,c,d ,e of g. h there is only
computer. a programe has to be made and can be made by only one person at
a time. the office has 3 shifts, the morning shift from 6 am-12 am has 3
staff, afternoon shift from 12am. to 6 pm. has 3 staff, evening shift
from 6 pm to 12 pm has 2 staff one of the person did not used a printer:
1 b is the last person who use the computer
2 h use the computer after a and came iwth a
3 d used the computer after h and come with h but before e
4 c used the computer before b but arrived after e
5 a use the computer before f and arrived before g
who arethe person in the night shift.
(a)f g
(b)f e
(c)b e
(d)b c
22. in the office amongst staff a,b,c,d ,e of g. h there is only
computer. a programe has to be made and can be made by only one person at
a time. the office has 3 shifts, the morning shift from 6 am-12 am has 3
staff, afternoon shift from 12am. to 6 pm. has 3 staff, evening shift
from 6 pm to 12 pm has 2 staff one of the person did not used a printer:
1 b is the last person who use the computer
2 h use the computer after a and came iwth a
3 d used the computer after h and come with h but before e
4 c used the computer before b but arrived after e
5 a use the computer before f and arrived before g
who use the 2nd computer
(a) a
(b)h
(c)d
(d)e
23. in the office amongst staff a,b,c,d ,e of g. h there is only
computer. a programe has to be made and can be made by only one person at
a time. the office has 3 shifts, the morning shift from 6 am-12 am has 3
staff, afternoon shift from 12am. to 6 pm. has 3 staff, evening shift
from 6 pm to 12 pm has 2 staff one of the person did not used a printer:
1 b is the last person who use the computer
2 h use the computer after a and came iwth a
3 d used the computer after h and come with h but before e
4 c used the computer before b but arrived after e
5 a use the computer before f and arrived before g
who are the person in the morning shift
(a) hec
(b)ahd

(c)efg
(d)dec
24. in the office amongst staff a,b,c,d ,e of g. h there is only
computer. a programe has to be made and can be made by only one person at
a time. the office has 3 shifts, the morning shift from 6 am-12 am has 3
staff, afternoon shift from 12am. to 6 pm. has 3 staff, evening shift
from 6 pm to 12 pm has 2 staff one of the person did not used a printer:
1 b is the last person who use the computer
2 h use the computer after a and came iwth a
3 d used the computer after h and come with h but before e
4 c used the computer before b but arrived after e
5 a use the computer before f and arrived before g
who takes first computer
(a) a
(b)h
(c)d
(d)e
25. seven persons p,q,r,s,t,u,v and w are to be assigned seven adjacent
chambers on the same floor in a apartment according to following
conditions:
1 u is assigned as far away from r as t is
2 p and r prefer to have adjacent chanmbers
3 v will have to be assigned chamber no. 5
4 q;s work requirs him to speak on phone frequently through out the day.
5 p, s and t all smoke. v is allergic to toacco smoke and must have non
smoker in the chamber ajjacent own.
6 unless otherwise specified all employeed maintain silence in their
chambers.
the best location of s in on the floor is:
(a)2
(b)3
(c)4
(d)7
Answers:
1 d 2 d 3 c 4 b 5 b 6 c7 d 8 d 9 b 10 a 11 d 12 b13 c 14 c 15 b 16 a 17 c 18 d19 c 20 c 21 d 22 b 23 b 24 a 25 a

All the best for your preparation!!


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