Monday 13 November 2017

012. HCL INTERVIEW QUESTIONS


Section A 
1. Which of the following involves context switch,
(a) system call
(b) priviliged instruction
(c) floating poitnt
(d) all the above
(e) none of the above
Ans: (a)

2. In OST, terminal emulation is done in
(a) sessions layer
(b) application layer
(c) presentation layer
(d) transport layer
Ans: (b)

3. For a  25MHz processor , what is the time taken by the instruction which needs 3 clock cycles,
(a)120 nano secs
(b)120 micro secs
(c)75 nano secs
(d)75 micro secs

4. For 1 MB memory, the  number of address lines required,
(a)11
(b)16                                                                                                            Freshersworld.com
(c)22
(d) 24
Ans. (b)

5. Semaphore is used for
(a) synchronization
(b) dead-lock avoidence
(c) box
(d) none
Ans. (a)

6. Which holds true for the following statement
     class c: public A, public B
a) 2 member in class A, B should not have same name
b) 2 member in class A, C should not have same name
c) both
d) none
Ans. (a)

7. Question related to java

8. OLE is used in
a) inter connection in unix                                                                              Freshersworld.com
b) interconnection in WINDOWS
c) interconnection in WINDOWS NT

9. Convert a given HEX number to OCTAL

10. Macros and function are related in what aspect?
(a)recursion
(b)varying no of arguments
(c)hypochecking
(d)type declaration

11.Preproconia.. does not do which one of the following
(a) macro
(b) conditional compliclation
(c) in type checking
(d) including load file
Ans. (c)

12. Piggy backing is a technique for
a) Flow control
b) Sequence
c) Acknowledgement                                                                              Freshersworld.com
d) retransmition
Ans. (c)

13. In signed magnitude notation what is the minimum value that can be represented with 8 bits
(a) -128
(b) -255
(c) -127
(d) 0

14. There is an employer table with key fields as employer number data
      in every n'th row are needed for a simple following queries will get required results.
(a) select A employee number from employee A , where exists from employee B where A employee no. >= B
     employee having (count(*) mod n)=0
(b) select employee number from employe A, employe B where A employe number>=B employ number
    group by employee number having(count(*) mod n=0 )
(c) both (a) & (b)
(d) none of the above

15. Type duplicates of a row in a table customer with non uniform key field customer number you can see
a) delete from costomer where customer number exists( select distinct customer number from customer having count )
b) delete customer a where customer number in b rowid
c) delete customer a where custermor number in( select customer number from customer a, customer b )
d) none of the above

Section B

1. Given the following statement
     enum day = { jan = 1 ,feb=4, april, may}                                           Freshersworld.com
     What is the value of may?
(a) 4
(b) 5
(c) 6
(d) 11
(e) None of the above

2. Find the output for the following C program
main
{int x,j,k;
j=k=6;x=2;
x=j*k;
printf("%d", x);

3. Find the output for the following C program
fn f(x)
{ if(x<=0)
return;
else f(x-1)+x;
}

4. Find the output for the following C program
i=20,k=0;
for(j=1;j<i;j=1+4*(i/j))
{k+=j<10?4:3;
}
printf("%d", k);
Ans. k=4

5. Find the output for the following C program
int i =10
main()
{int i =20,n;                                                                                               Freshersworld.com
for(n=0;n<=i;)
{int i=10;
i++;
}
printf("%d", i);
Ans. i=20

6. Find the output for the following C program
int x=5;
y= x&y
7.Find the output for the following C program
Y=10;
if( Y++>9 && Y++!=10 && Y++>10)
{printf("%d", Y);
else
printf("%d", Y);
Ans. 13

8. Find the output for the following C program
f=(x>y)?x:y
a) f points to max of x and y                                                                                  Freshersworld.com
b) f points to min of x and y
c)error
Ans. (a)

9. What is the sizeof(long int)
(a) 4 bytes
(b) 2 bytes
(c) compiler dependent
(d) 8 bytes

10. Which of the function operator cannot be over loaded
(a)  <=
(b) ?:
(c) ==
(d) *

11. Find the output for the following C program
main()
{intx=2,y=6,z=6;                                                                                                   Freshersworld.com
x=y==z;
printf(%d",x)
}

Section C (Programming Skills)
Answer the questions based on the following program
STRUCT DOUBLELIST
{ DOUBLE CLINKED
INT DET; LIST VOID
STRUCT PREVIOUS; (BE GIVEN AND A PROCEDURE TO DELETE)
STRUCT NEW; (AN ELEMENT WILL BE GIVEN)
}
DELETE(STRUCT NODE)
{NODE-PREV-NEXT NODE-NEXT;
NODE-NEXT-PREV NODE-PREV;
IF(NODE==HEAD)
NODE
}
Q. In what case the prev was
(a) All cases
(b) It does not work for the last element
(c) It does not for the first element
(d) None of these

Answer the questions based on the following program
VOID FUNCTION(INT KK)
{KK+=20;
}
VOID FUNCTION (INT K)
INT MM,N=&M
KN = K
KN+-=10;
}

Q. What is the output of the following program
main()
{ int var=25,varp;
varp=&var;
varp p = 10;
fnc(varp)
printf("%d%d,var,varp);                                                                                            Freshersworld.com
}
(a) 20,55
(b) 35,35
(c) 25,25
(d)55,55

Section D
1. a=2, b=3, c=6
    Find the value of c/(a+b)-(a+b)/c

2. What does the hexanumber E78 in radix 7.
(a) 12455
(b) 14153
(c) 14256
(d) 13541
(e) 131112
Ans. (d)

3. 10 : 4 seconds :: ? : 6 minutes
Ans. 900

4. Q is not equal to zero and k = (Q x n - s)/2.What is  n?
(a) (2 x k + s)/Q
(b) (2 x s x k)/Q
(c) (2 x k - s)/Q
(d) (2 x k + s x Q)/Q                                                                                 Freshersworld.com
(e) (k + s)/Q

5. From the following statements determing the order of ranking
M has double the amount as D Y has 3 rupess more than half the amount of D
Ans. Data insuffiecient

Questions 6 - 10 are to be answered on the following data
A causes B or C, but not both F occurs only if B occurs D occurs if B or C occurs E occurs only if C occurs J occurs only if E or F occurs D causes G,H or both H occurs if E occurs G occurs if F occurs
6. If A occurs which of the following must occurs
I.  F and G
II. E and H
III. D
(a) I only
(b) II only
(c) III only
(d) I,II, & III
(e) I & II (or) II & III but not both
Ans. (e)

7. If B occurs which must occur
(a) D
(b) D and G
(c) G and H
(d) F and G
(e) J
Ans. (a)

8. If J occurs which must have occured
(a) E
(b) either B or C
(c) both E & F
(d) B
(e) both B & C
Ans. (b)

9. Which may occurs as a result of cause not mentioned
I. D
II. A
III. F
(a) I only 

011. SUTHERLAND INTERVIEW QUESTIONS


SUTHERLAND PAPER ON 29TH SEPTEMBER AT CHENNAI
Friends I attended Sutherland walk-in on 29.9.10, for technical support executives, in Santhome, at Chennai. First there will be an online registration, and then the next round will be the communication skill round, you will be selected if your communication skill is good. Then the next round will be the online test, here are some questions which I got.
ONLINE TEST 1 :( ANALYTICAL)
The analytical section consists of 20 questions, time 20 minutes, all were simple only.
1. Find the next number in the series 5, 20, 24, 6, 2, 8, ?
2. If a car covers 300 miles in 2 hrs, then what is the velocity of the car?
3. If a gold chain is broken into 3 pieces, then how many number of openings required to make a full chain again.
4. What is 10% of 50?
5. If RANGE is coded as 12345, RANDOM is coded as 123678, the how can PAKISTAN as?
6. Which one is greater 71/8, 3/4, 7/9?
7. 20/0.8=?
8. A lady points out the man and said “this man mother is the only daughter of my mother”, then how is the lady relates to the man?
9. My father has three sisters, and each children of my grand father having two children each. Then how many cousins I have?
10. If MANGO is coded as 82347 then ……….. is coded as?(I forgot this )
11. 2268
8820
1512
What is the answer of the division of the addition of all three rows by the first row?
ONLINE TEST 2 :( VERBAL)
This section also consists of 20 questions in 20 minutes, somewhat difficult only.
TYPING TEST:
If you clear the above two online test then there will be a typing test of 2 minutes, the accuracy should be more than 90%,and total words typed per minute is 25.
WRITTEN TEST:
If you clear the above three rounds then there will be a written test round, here you will be asked to write about a topic for about fifteen to twenty lines.
NOTE: Those who are not having the HR reference won’t clear this round.
HR ROUND: Final round will be the HR round.
NOTE: friends, from my experience I can say, being a fresher, for this technical support executive job, if u have the employee reference or the HR reference means you can easily clear the communication skill round. But you will get job, only if you are having the HR reference or your communication and technical knowledge are extraordinary good.

010. ROBERT BOSCH PLACEMENT PAPER


ROBERT BOSCH PAPER ON 29TH JUNE AT SDM,DHARWAD
Hello friends…… I Madhumitha from TCE, Gadag, Karnataka attended off campus for Robert bosch!!! In SDM.. Dharwad….29/06/2010

I had another exam CDAC.. was confused which to quit./…so much I was confused.. finally din prepare for any…wanted to quit both….but den… was not in a mood but still I made ma mind last minute….dat waz coz of ma friend…thanks 

10 a.m was the reporting time…It was late….we rushed in….saw there…ah!!!.der waz nothing…opps….and later v gotta know test was yet to start:):)….

Then personell s from bosch came in…68% is mandatory they said….ECE nd CSE papers was separate….we occupied our places……..

We were asked to fill a form…and then wer given answer sheets…OMR sheets….2HB pencils wer to b used itcms…pencil…

Question papers wer distributed….
Test duration:60 minutes…..
No.Of questions:60
2 marks for right answer
0.25 marks minus for each wrong answer……..

I had referred some old papers which were in this site….but none helped me…..it was totally NEW PATTERN>>>NEW PATTERN>…….

You need to be prepared well with the basics…..Iam fro m ECE stream…so for ECE you need to be well prepared with BASIC ELECTRONICS, lil network analysis,lil Electronic circuits…MICROPROCESSORS, OPERATING SYSTEMS, CCN, APTITUDE AND ENGLISH……..I remember some questions….am not putting dem in order…jus…first fifteen questions were horrible…rest wer easy kind…..PREPARE DES QUESTIONS WELL…..SURE U R DONE WITH 32 QUESTIONS….SURE…SURE …so here I go

1.A circuit was given…nd current was asked….applying KCL I guess..

2.A two port network was given..two ports wer arranged serially…so go through 2port networks..

3.Nodal analysis is applicable to


4.A question on Superposition theorem. simple one…I don remember much…it was somthn like dis…Superposition theorem can be applied to

5.series of resistors are connected across ideal voltages.. If pair of resistors are introduced wot happens to the voltage?


6.Calculation of some OPAMP parameters…I guess calculation of CMRR…don remember….

7.Which of these Class of amplifiers are least efficient?

8.In a RC coupled amplifier, coupling capacitor is used

9.Which of these is not a 8-bit processor

10.How many address lines would u require to access 4K memory?


11.How many times the loop gets executed?
Loop:mov b,#64
NOP
Dec b
Jnz loop

12.Multiprogramming and multithreading….Which of these are better?

13.Ethernet has a___________ topology


14.Which of these are used for high speed and long distance?


15.A Modem converts _______ to _________.


16.Which of the following is not a n/w


17.Which of the following is not a type of memory?


18.Arrange the TCP/IP OSI layers from bottom to top
…..

19.A question on daemon and background process.

20.When set of interrupts occur


21.Which of these schemes introduces a minimum delay?

22.A train problem.

23. A man went 10mts east…and then 20mts north. What is the distance from the start?
--right angled triangle…finding hypotnuese..

24.A car travels at the rate of 50km/hr to reach a places.while comin back it takes 60/hr,what is the avg speed?

25.A’s and B’s income ratios are 2:3.Expenditure ratio is 5:3.What is A’s income?

26.A can finish work in 2 days.B can finish the same work in 6 dayz..Together how much time they take to finish the work…??

27.Another work problem…A and B together take ______days.A takes _____ days.how much B takes alone to finish da work?

28.2 questions on Heights and distance…a question something a pole standing vertical…….sorry don remember

29. A381 is a given number.Which smallest number is ‘A’ such that the number is divisible by 11?


30.When (9^6+1) is divided by some number(I don remember),wot is the remainder?

Give the SYNONYMS
31.TO MERIT

32.OBSE
I still don know wot it means :)…
Give the ANTONYMS

33.RECANT

34 Fill in the blanks
35.I don’t know _____ they make money of bill.


36.The children ran in _________they disappeared.



37.Skin: human



38.Editor:Magazine


PREPARE DES PERFECTLY…I'VE PUT EXACTLY WOT I READ IN QUESTION PAPER…DON’T NEGLECT DES…..u R GONNA GET 30 questions rite if u prepare des well…So guys al da best…I din prepare well…but did something…gotta c…results ll b given in another two dayz they said…results ll b out in net dey said….!!!!

Prepare well…do well…..AM SO HAPPY giving out dez questions…i remember DES many ah!!!!!wow man…and IF DEZ QUESTIONS HELPED U, DEN ILL BE WAITING FOR A THANK YOU MESSAGE….

009. Top 10 popular mechanical Interview questions


1. Why are the tires always black in color?
Tires are black due to the proportion of carbon mixed in it during vulcanization of rubber. Without it, tires can’t bear the friction heat and road stress.
2. Why is excess air required to burn a fuel completely?
Excess air is necessary to ensure minimum slagging of coal, adequate mixing of fuel and air, and to produce maximum steam output.
3. Why are big tires used in the rear of vehicles?
Large tires accounts for large surface area touching the ground and hence more pulling power. It reduces speed, thouga.
4. What is the use of Sentinal Relief Valve?
It’s a warning function valve. The purpose of which is to warn the operator in case of an excessive casing pressure in exhaust. It doesn’t relieve the pressure automatically.
5. Difference b/w Specification, Codes, and Standards?
Specification is property description of the material, Code defines the procedure for acceptance and rejection criteria and Standard is the accepted value and comparison of the system with others.
6. What is the purpose of Scrapper Ring?
It soaks the excess lube oil and thereby prevents the oil from entering the combustion zone.
7. What DTSI technology means?
It stands for Digital Twin Spark Ignition.
Digital – Spark initiation by microchip
Twin – 2 spark plugs are used
Spark Ignition – Ignition by spark
8. Difference b/w Impact Force and Sudden Force?
IF – The high force or shock applied when two bodies collide for a short period of time.
SF – The force which brings the body into a sudden state of rest or motion. No collision.
9. What is forced convection?
It is the heat transfer that occurs between a solid body and a fluid where some mechanics is required to cause and control the fluid circulation.
10. What is the direction of Tangential Acceleration?
It can be same or opposite to that of Angular Velocity.

008. Frequenty asked mechanical interview questions


1. Difference between 'Thermodynamics and Heat Transfer'

  • Thermodynamics mainly deals with the transfer of energy in form of heat or work between systems and surroundings with other systems in form of either heat or work in equilibrium conditions.  When there is change in one state, which was in equilibrium state and starting to change in other equilibrium state, this information helps to determine heat or work interactions due to this process. While
  • Heat transfer deals with non equilibrium heat exchange or transfer due to temperature gradient while in thermodynamics, during thermal equilibrium (No temperature gradient) no heat exchange is possible.  [Read more interview questions on Thermodynamics]. Heat never transfer when there is no temperature gradient. 

2. Difference between Pipe and tube

  • There always a debate between differentiation of pipe and tube. Pipe is always designated by its Inside Diameter (ID) because main purpose of pipe is to carry fluid, while the 
  • Tube is always designated by its Outside Diameter (OD). Pipe's thickness is sometimes called as schedule and tube's thickness is gauge.
  • As per the tolerance basis, tubes requires higher tolerances as to that of pipe and tubes are more costlier in manufacturing compared to pipe production.
3. Difference between Flywheel and Governor




The function of flywheel is to store the energy/power produced during the power stroke of an engine and this stored energy is used during remaining stroke to make piston up and down during working of engine while governor tries control the speed of an engine due to variation in load. It does this work by reducing or increasing the amount of fuel passing to the engine.

4. Difference between tempering and annealing  

Annealing is a process in which workpiece is heated up to certain temperature to get desired changes in grain or micro-structure and then allowed to cool slowly in order to relieve the stresses during work treatment. While tempering is a process wherein hardness and elasticity or ductility can be regain by use of heating and cooling cycle till desired properties can be obtained. 

007. 17 Mechanical Engineering interview questions


1. What is the difference between scavenging and supercharging ?
Ans: Scavenging is procedure of eliminating out used fumes from engine cyndrical tube by presenting fresh air in the cyndrical tube before fatigue action ends. Supercharging is the procedure of providing greater mass of air by contracting the environmental air.
2. What are what they are given to continuous warm range, continuous stress, continuous quantity, continuous inner energy, continuous enthalpy, and continuous entropy procedures.
Ans: Isothermal, isochroic, isobaric, free appearance, throttling and adiabatic procedures respectively.
3. In a Rankine pattern if highest possible vapor stress is improved keeping vapor warm range and condenser stress same, what will happen to dry skin portion of vapor after development ?
Ans: It will reduce.
4. Why entropy change for a undoable adiabatic procedure is zero ?
Ans: Because there is no warm transfer in this procedure.
5. What are two essential conditions of perfect gas ?
Ans: It meets formula of state and its specific warms are continuous.
6. Enthalpy and entropy are features of one single parameter. Which is that ?
Ans: Temperature.
7. Why rate of moisture build-up or condensation is greater on a refined area compared to corroded area ?
Ans: Polished area encourages fall sensible moisture build-up or condensation and does not wet the outer lining area.
8. How much level of resistance is provided to warm flow by fall sensible moisture build-up or condensation ?
Ans: Nil
9. What is the link between COP of chilling and warming ?
Ans: COP of warming is one(unity) more than COP of chilling.
10. How much is the perform done in isochoric procedure ?
Ans: Zero.
11. When highest possible release is acquired in misting nozzle ?
Ans: At the crucial stress rate.
1. Under what situation the perform done in reciprocating air compressor will be least ?
Ans: It is least when stress procedure techniques isothermal. For this objective, efforts are made to awesome the air during stress.
13. What is the distinction between slowing down and rising in turning compressions ?
Ans: Stalling is a local trend and it happens when How smashes away from the rotor blades. Surging causes complete guide to circulation and as such it impacts the whole device.
14. Why the engine unit of a fan with in reverse rounded rotor blades is never got bombarded under any situation ?
Ans: The utmost energy is absorbed at about 70% of highest possible circulation in case’of fan with in reverse rotor blades. For greater circulation, energy intake gets lower.
15. Why the perform per kg of air circulation in axial circulation air compressor is less in comparison to centrifugal air compressor for same stress rate ?
Ans: Isentropic performance of axial circulation air compressor is greater.
16. What is the name given to section of heat energy to be actually refused to atmosphere ?
Ans: Anergy.
17. What is ugly pitting ? How it is triggered ?
Ans: Non consistent deterioration over the entire steel area, but happening only in small sets is known as ugly pitting. It is triggered by deficiency of consistency in steel.