As you want to get the previous year question papers of National Insurance Company so here is the information of the same for you:

Some content of the file has been given here:

1. A certain type of mixture is prepared by mixing brand A at Rs.9 a kg.

with brand B at Rs.4 a kg. If the mixture is worth Rs.7 a kg., how many

kgs. of brand A are needed to make 40kgs. of the mixture?

Ans. Brand A needed is 24kgs.

2. A wizard named Nepo says “I am only three times my son’s age. My

father is 40 years more than twice my age. Together the three of us are

a mere 1240 years old.” How old is Nepo?

Ans. 360 years old.

3. One dog tells the other that there are two dogs in front of me. The

other one also shouts that he too had two behind him. How many are they?

Ans. Three.

4. A man ate 100 bananas in five days, each day eating 6 more than the

previous day. How many bananas did he eat on the first day?

Ans. Eight.

5. If it takes five minutes to boil one egg, how long will it take to

boil four eggs?

Ans. Five minutes.

6. Three containers A, B and C have volumes a, b, and c respectively; and

container A is full of water while the other two are empty. If from

container A water is poured into container B which becomes 1/3 full, and

into container C which becomes 1/2 full, how much water is left in

container A?

7. ABCE is an isosceles trapezoid and ACDE is a rectangle. AB = 10 and EC

= 20. What is the length of AE?

Ans. AE = 10.

8. In the given figure, PA and PB are tangents to the circle at A and B

respectively and the chord BC is parallel to tangent PA. If AC = 6 cm,

and length of the tangent AP is 9 cm, then what is the length of the

chord BC?

Ans. BC = 4 cm.

9 Three cards are drawn at random from an ordinary pack of cards. Find

the probability that they will consist of a king, a queen and an ace.

Ans. 64/2210.

10. A number of cats got together and decided to kill between them 999919

mice. Every cat killed an equal number of mice. Each cat killed more mice

than there were cats. How many cats do you think there were ?

Ans. 991.

11. If Log2 x – 5 Log x + 6 = 0, then what would the value / values of x

be?

Ans. x = e2 or e3.

12. The square of a two digit number is divided by half the number. After

36 is added to the quotient, this sum is then divided by 2. The digits of

the resulting number are the same as those in the original number, but

they are in reverse order. The ten’s place of the original number is

equal to twice the difference between its digits. What is the number?

Ans. 46

13.Can you tender a one rupee note in such a manner that there shall be

total 50 coins but none of them would be 2 paise coins.?

Ans. 45 one paisa coins, 2 five paise coins, 2 ten paise coins, and 1

twenty-five paise coins.

14.A monkey starts climbing up a tree 20ft. tall. Each hour, it hops 3ft.

and slips back 2ft. How much time would it take the monkey to reach the

top?

Ans.18 hours.

15. What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12

Ans. 9

16. The minute hand of a clock overtakes the hour hand at intervals of 64

minutes of correct time. How much a day does the clock gain or lose?

Ans. 32 8/11 minutes.

17. Solve for x and y: 1/x – 1/y = 1/3, 1/x2 + 1/y2 = 5/9.

Ans. x = 3/2 or -3 and y = 3 or -3/2.

18. Daal is now being sold at Rs. 20 a kg. During last month its rate was

Rs. 16 per kg. By how much percent should a family reduce its consumption

so as to keep the expenditure fixed?

Ans. 20 %.

19. Find the least value of 3x + 4y if x2y3 = 6.

Ans. 10.

20. Can you find out what day of the week was January 12, 1979?

Ans. Friday.

21. A garrison of 3300 men has provisions for 32 days, when given at a

rate of 850 grams per head. At the end of 7 days a reinforcement arrives

and it was found that now the provisions will last 8 days less, when

given at the rate of 825 grams per head. How, many more men can it feed?

Ans. 1700 men.

22. From 5 different green balls, four different blue balls and three

different red balls, how many combinations of balls can be chosen taking

at least one green and one blue ball?

Ans. 3720.

23. Three pipes, A, B, & C are attached to a tank. A & B can fill it in

20 & 30 minutes respectively while C can empty it in 15 minutes. If A,

B & C are kept open successively for 1 minute each, how soon will the

tank be filled?

Ans. 167 minutes.

24. A person walking 5/6 of his usual rate is 40 minutes late. What is

his usual time?

Ans. 3 hours 20 minutes.

25. Mr. Shah decided to walk down the escalator of a tube station. He

found that if he walks down 26 steps, he requires 30 seconds to reach

the bottom. However, if he steps down 34 stairs he would only require 18

seconds to get to the bottom. If the time is measured from the moment the

top step begins to descend to the time he steps off the last step at

the bottom, find out the height of the stair way in steps?

Ans.46 steps.

Masters of Computer Application –(MCA) Entrance 2012

Computer Knowledge Paper I

1. All of the following are examples of real security and privacy risks

EXCEPT:

A. hackers.

B. spam.

C. viruses.

D. identity theft.

Ans : B

2. A process known as ____________ is used by large retailers to study

trends.

A. data mining

B. data selection

C. POS

D. data conversion

Ans : A

3. ____________terminals (formerly known as cash registers) are often

connected to complex inventory and sales computer systems.

A. Data

B. Point-of-sale (POS)

C. Sales

D. Query

Ans : B

4. A(n) ____________ system is a small, wireless handheld computer that

scans an item’s tag and pulls up the current price (and any special

offers) as you shop.

A. PSS

B. POS

C. inventory

D. data mining

Ans : A

5. The ability to recover and read deleted or damaged files from a

criminal’s computer is an example of a law enforcement specialty called:

A. robotics.

B. simulation.

C. computer forensics.

D. animation.

Ans : C

6. Which of the following is NOT one of the four major data processing

functions of a computer?

A. gathering data

B. processing data into information

C. analyzing the data or information

D. storing the data or information

Ans : C

7. ____________ tags, when placed on an animal, can be used to record and

track in a database all of the animal’s movements.

A. POS

B. RFID

C. PPS

D. GPS

Ans : B

8. Surgeons can perform delicate operations by manipulating devices

through computers instead of manually. This technology is known as:

A. robotics.

B. computer forensics.

C. simulation.

D. forecasting.

Ans : A

9. Technology no longer protected by copyright, available to everyone, is

considered to be:

A. proprietary.

B. open.

C. experimental.

D. in the public domain.

Ans : A

10. ____________ is the study of molecules and structures whose size

ranges from 1 to 100 nanometers.

A. Nanoscience

B. Microelectrodes

C. Computer forensics

D. Artificial intelligence

Ans : A

11. ____________ is the science that attempts to produce machines that

display the same type of intelligence that humans do.

A. Nanoscience

B. Nanotechnology

C. Simulation

D. Artificial intelligence (AI)

Ans : D

12. ____________ is data that has been organized or presented in a

meaningful fashion.

A. A process

B. Software

C. Storage

D. Information

Ans : D

13. The name for the way that computers manipulate data into information

is called:

A. programming.

B. processing.

C. storing.

D. organizing.

Ans : B

14. Computers gather data, which means that they allow users to

____________ data.

A. present

B. input

C. output

D. store

Ans : B

15. After a picture has been taken with a digital camera and processed

appropriately, the actual print of the picture is considered:

A. data.

B. output.

C. input.

D. the process.

Ans : B

16. Computers use the ____________ language to process data.

A. processing

B. kilobyte

C. binary

D. representational

Ans : C

17. Computers process data into information by working exclusively with:

A. multimedia.

B. words.

C. characters.

D. numbers.

Ans : D

18. In the binary language each letter of the alphabet, each number and

each special character is made up of a unique combination of:

A. eight bytes.

B. eight kilobytes.

C. eight characters.

D. eight bits.

Ans : D

19. The term bit is short for:

A. megabyte.

B. binary language.

C. binary digit.

D. binary number.

Ans : C

20. A string of eight 0s and 1s is called a:

A. megabyte.

B. byte.

C. kilobyte.

D. gigabyte.

Ans : B

21. A ____________ is approximately one billion bytes.

A. kilobyte

B. bit

C. gigabyte

D. megabyte

Ans : C

22. A ____________ is approximately a million bytes.

A. gigabyte

B. kilobyte

C. megabyte

D. terabyte

Ans : C

23. ____________ is any part of the computer that you can physically

touch.

A. Hardware

B. A device

C. A peripheral

D. An application

Ans : A

24. The components that process data are located in the:

A. input devices.

B. output devices.

C. system unit.

D. storage component.

Ans : C

25. All of the following are examples of input devices EXCEPT a:

A. scanner.

B. mouse.

C. keyboard.

D. printer.

Ans : D

26. Which of the following is an example of an input device?

A. scanner

B. speaker

C. CD

D. printer

Ans : A

27. All of the following are examples of storage devices EXCEPT:

A. hard disk drives.

B. printers.

C. floppy disk drives.

D. CD drives.

Ans : B

28. The ____________, also called the “brains” of the computer, is

responsible for processing data.

A. motherboard

B. memory

C. RAM

D. central processing unit (CPU)

Ans : D

29. The CPU and memory are located on the:

A. expansion board.

B. motherboard.

C. storage device.

D. output device.

Ans : B

30. Word processing, spreadsheet, and photo-editing are examples of:

A. application software.

B. system software.

C. operating system software.

D. platform software.

Ans : A

31. ____________ is a set of computer programs used on a computer to help

perform tasks.

A. An instruction

B. Software

C. Memory

D. A processor

Ans : B

32. System software is the set of programs that enables your computer’s

hardware devices and ____________ software to work together.

A. management

B. processing

C. utility

D. application

Ans : D

33. The PC (personal computer) and the Apple Macintosh are examples of

two different:

A. platforms.

B. applications.

C. programs.

D. storage devices.

Ans : A

34. Apple Macintoshes (Macs) and PCs use different ____________ to

process data and different operating systems.

A. languages

B. methods

C. CPUs

D. storage devices

Ans : C

35. Servers are computers that provide resources to other computers

connected to a:

A. network.

B. mainframe.

C. supercomputer.

D. client.

Ans : A

36. Smaller and less expensive PC-based servers are replacing

____________ in many businesses.

A. supercomputers

B. clients

C. laptops

D. mainframes

Ans : D

37. ____________ are specially designed computers that perform complex

calculations extremely rapidly.

A. Servers

B. Supercomputers

C. Laptops

D. Mainframes

Ans : B

38. DSL is an example of a(n) ____________ connection.

A. network

B. wireless

C. slow

D. broadband

Ans : D

39. The difference between people with access to computers and the

Internet and those without this access is known as the:

A. digital divide.

B. Internet divide.

C. Web divide.

D. broadband divide.

Ans : A

40. ____________ is the science revolving around the use of

nanostructures to build devices on an extremely small scale.

A. Nanotechnology

B. Micro-technology

C. Computer forensics

D. Artificial intelligence

Ans : A

41. Which of the following is the correct order of the four major

functions of a computer?

A. Process à Output à Input à Storage

B. Input à Outputà Process à Storage

C. Process à Storage à Input à Output

D. Input à Process à Output à Storage

Ans : D

42. ____________ bits equal one byte.

A. Eight

B. Two

C. One thousand

D. One million

Ans : A

43. The binary language consists of ____________ digit(s).

A. 8

B. 2

C. 1,000

D. 1

Ans : B

44. A byte can hold one ____________ of data.

A. bit

B. binary digit

C. character

D. kilobyte

Ans : C

45. ____________ controls the way in which the computer system functions

and provides a means by which users can interact with the computer.

A. The platform

B. The operating system

C. Application software

D. The motherboard

Ans : B

46. The operating system is the most common type of ____________

software.

A. communication

B. application

C. system

D. word-processing software

Ans : C

47. ____________ are specially designed computer chips that reside inside

other devices, such as your car or your electronic thermostat.

A. Servers

B. Embedded computers

C. Robotic computers

D. Mainframes

Ans : B

48. The steps and tasks needed to process data, such as responses to

questions or clicking an icon, are called:

A. instructions.

B. the operating system.

C. application software.

D. the system unit.

Ans : A

49. The two broad categories of software are:

A. word processing and spreadsheet.

B. transaction and application.

C. Windows and Mac OS.

D. system and application.

Ans : D

50. The metal or plastic case that holds all the physical parts of the

computer is the:

A. system unit.

B. CPU.

C. mainframe.

D. platform.

Ans : A

NUMERICAL APTITUDE QUESTIONS

1 (95.6x 910.3) ÷ 92.56256 = 9?

(A) 13.14

(B) 12.96

(C) 12.43

(D) 13.34

(E) None of these

2. (4 86%of 6500) ÷ 36 =?

(A) 867.8

(B) 792.31

(C) 877.5

(D) 799.83

(E) None of these

3. (12.11)2 + (?)2 = 732.2921

(A)20.2

(B) 24.2

(C)23.1

(D) 19.2

(E) None of these

4.576÷ ? x114=8208

(A)8

(B)7

(C)6

(D)9

(E) None of these

5. (1024—263—233)÷(986—764— 156) =?

(A)9

(B)6

(C)7

(D)8

(E) None of these

6. ?125÷5x ?=6265

(A)1253

(B) 1250

(C)1245

(D) 1550

(E) None of these

7.(42)2÷6.3 x 26 =?

(A)7182

(B) 7269

(C)7260

(D) 7240

(E) None of these

8.384×12×2=?

(A)9024

(B) 9216

(C)6676

(D) 6814

(E) None of these

9.6534÷40÷33=?

(A)3.06

(B) 5.25

(C)4.82

(D) 6.12

(E) None of these

10. ?2704 x ?2209=?

(A)1996

(B)2444

(C)2452

(D)1983

(E)None of these

11.2536+4851—?=3450+313

(A)3961

(B)4532

(C)3624

(D)4058

(E) None of these

12. (2560 x 1.4) +(7400 x 0.6) =?

(A)7512

(B) 9746

(C)6523

(D) 8024

(E) None of these

13. 36%of 850+? %of 592 = 750

(A)73

(B)89

(C)82

(D)75

(E) None of these

14.64%of 2650+40% 0f 320=?

(A)1824

(B) 1902

(C)1829

(D) 1964

(E) None of these

15. 486+32×25—59=?

(A) 514

(B) 528

(C) 599

(D) 507

(E) None of these

16. 1827÷ 36 x ?=162.4

(A)4.4

(B)3.2

(C)2.1

(D) 3.7

(E) None of these

17. 1008÷36=?

(A)28

(B) 32.5

(C)36

(D) 22.2

(E) None of these

18. 56.21 +2.36+5.41 —21.4+1.5=?

(A)40.04

(B) 46.18

(C)44.08

(D) 43.12

(E) None of these

19. 65%of 320+?=686

(A) 480

(B) 452

(C)461

(D) 475

(E) None of these

20. 83250÷?=74×25

(A)50

(B) 45

(C)40

(D) 55

(E) None of these

21. ?7744=?

(A)88

(B)62

(C)58

(D)78

(E)None of these

22.35%of ?=242

(A)729

(B)652

(C)693

(D)759

(E) None of these

23. 1256+4813+765=?

(A)5642

(B) 5876

(C)6788

(D) 6878

(E) None of these

24. 22 x4+(?)2=(13)2

(A) 81

(C) 27

(B) 9

(D) 64

(E) None of these

25. 432+2170+35=?

(A)494

(B) 475

(C)481

(D) 469

(E) None of these

26. Three numbers are in the ratio of 3: 4 :5 respectively. If the sum of

the first and third numbers is more than the second number by 52, then

which will be the largest number?

(A) 65

(B) 52

(C) 79

(D) 63

(E) None of these

27. The compound interest on a certain amount for 2 years at the rate of

8 p.c.p.a. is Rs.312. What will be the simple interest on the same amount

and at the same rate and same time?

(A)Rs. 349.92

(B) Rs. 300

(C)Rs. 358.92

(D) Rs. 400

(E) None of these

28. The length of a rectangle exceeds its breadth by 7 ems. If the length

is decreased by 4 cm. and the breadth is increased by 3 cms., then the

area of the new rectangle will be the same as the area of the original

rectangle. What will be the perimeter of the original rectangle?

(A)45 cms.

(B)40 cems.

(C)50 cms.

(D)55 cms.

(E)None of these

29. The sum of the digits of a two digit number is 12. If the new number

formed by reversing the digits is greater than the original number by 54,

then what will be the original number?

(A)28

(B) 48

(C)39

(D) 93

(E) None of these

30. In a fraction, twice the numerator is two more than the denominator.

If 3 is added to the numerator and the denominator each, then the

resultant fraction will be 2/3 .What was the original fraction ?

(A)5/18

(B)6/13

(C)13/6

(D)7/12

(E) None of these

31. Four-fifth of a number is 10 more than two-third of the same number.

What is the number?

(A) 70

(B) 75

(C) 69

(D) 85

(E) None of these

32. A shopkeeper purchased 200 bulbs for Rs. 10 each. However, 5 bulbs

were fused and had to be thrown away. The remaining were sold at Rs. 12

each. What will be the percentage

profit?

(A) 25

(B) 15

(C) 13

(D) 17

(E) None of these

33. What should come in the place of question mark (?) in the number

series given below?

25, 34, 52,79, 115,?

(A)160

(B) 140

(C)153

(D) 190

(E)None of these

34. What number should replace both the question marks (?) in the

following question ?

?/144= 49 /?

(A)95

(B) 76

(C)82

(D) 84

(E)None of these

35. The sum of three consecutive even numbers is 252. What is the sum of

the smallest and the largest numbers?

(A)158

(B) 148

(C)168

(D) 198

(E) None of these

36. Ajay spends 25% of his salary on house rent, 5% on food, 15% on

travel, 10% on clothes and the remaining amount of Rs. 27,000 is saved.

What is Ajay’s income?

(A) Rs. 60,000

(B) Rs. 80,500

(C) Rs. 60,700

(D) Rs. 70,500

(E) None of these

37. In how many different ways, can the letters of the word ‘CRISIS’ be

arranged ?

(A) 150

(B) 240

(C) 120

(D) 200

(E) None of these

38. At each corner of a square park with side equal to 40 m, there is a

flower bed in the form of a sector of radius 14 m. What is the area of

the remaining part of the park?

(A)984 Square m

(B) 789 Square m

(C) 1014 Square m

(D) 1024 Square m

(E) None of these

39. The length of a rectangular field is thrice its breadth. If the cost

of cultivating the field at Rs. 367.20 per square meter is Rs. 27,540,

then what is the perimeter of the rectangle?

(A)47m

(B) 39m

(C)52m

(D)40m

(E) None of these

40. If the fractions8/5,7/2,9/5,5/4,4/5 are arranged in descending order

of their values, which one will be fourth?

(A)4/5

(B)5/4

(C)9/5

(D)8/5

(E) 7/2

41. The present ages of Chetna and Shikha are in the ratio of 5 :7

respectively. After 7 years, their ages will be in the ratio of 11:14

respectively. What is the difference between their ages?

(A)9 years

(B) 4 years

(C)5 years

(D) 7 years

(E) None of these

42. If 13 men can complete a piece of work in 36 days, then in how many

days will 18 men complete the same work?

(A)16 days

(B) 20 days

(C)26 days

(D) 30 days

(E) None of these

43. If the area of a circle is 75.44 square cm then what is the

circumference of the circle?

(A)29.2 cm

(B) 28.9 cm

(C)30.8 cm

(D) 40.2 cm

(E) None of these

44. Girish started a business investing Rs. 45,000. After 3 months, Vijay

joined him with a capital of Rs. 60,000. After another 6 months, Ankush

joined them with a capital of Rs. 90,000. At the end of the year, they

made a profit of Rs. 16,500. What is Girish’s share of profit ?

(A) Rs. 5,500

(B) Rs. 6,000

(C) Rs. 6,600

(D) As. 5,900

(E) None of these

45. What is the average age of a family of five members, whose ages are

42, 49, 56, 63 and 35 years respectively?

(A)60 years

(B) 49 years

(C)45 years

(D) 58 years

(E) None of these

46. A and B are two taps which can fill a tank individually in 10 minutes

and 20 minutes respectively. However, there is a leakage at the bottom

which can empty a filled tank in 40 minutes. If the tank is empty

initially, how much time will both the taps take to fill the tank

(leakage is still there) ?

(A) 8 minutes

(B) 7 minutes

(C) 10 minutes

(D)15 minutes

(E) None of these

47. What is 50% of 40% of Rs. 3,450?

(A) Rs. 690

(B) As. 520

(C) Rs. 517.5

(D) Rs. 499.2

(E) None of these

48. If an amount of Rs. 5,86,700 is distributed equally amongst 25

persons, then how much would each person get?

(A) Rs. 2,54,876

(B) Rs. 2,34,68

(C) Rs. 3,74,20

(D) Rs. 1,95,62

(E) None of these

49. An urn contains 9 blue, 7 white and 4 black balls. If 2 balls are

drawn at random, then what is the probability that only one ball is

white?

(A) 71/190

(B) 121/190

(C) 91/190

(D) 93/190

(E) None of these

50. If the price of 5 transistors and 2 pen stands is Rs. 810, then what

will be the price of 7 transistors and 9 pen stands?

(A) Rs. 1,320

(B) Rs. 1,500

(C) Rs.1,150

(D) Cannot be determined

(E) None of these

ANSWERS:

1 - D 2 - C 3 - B 4 - A 5 - D 6 - A 7 - E 8 - B 9 - E 10 - B 11 - C 12

- D 13 - D 14 - A 15 - B

16 - B 17 - A 18 - C 19 - E 20 - B 21 - A 22 - C 23 - E 24 - B 25 - A 26

- A 27 - B 28 - C 29 - C 30 - D 31 - B 32 - D 33 - A 34 - D 35 - C 36 -

A 37 - E 38 - A 39 - D 40 - B 41 - E 42 - C 43 - C

44 - A 45 - B 46 - A 47 - A 48 - B 49 - E 50 - D

For more detailed information I am uploading PDF files which are free to download:

**Contact Details:**
National Insurance Company Limited

DAB Division No. 18,

Palika Bhawan,

R.K. Puram, Block B,

Sector 13,

RK Puram,

New Delhi,

Delhi 110066

1800 120 1430

India

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