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Computer Knowledge Questions And Answers Sample Test 7


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Computer Knowledge Test 7


You have scored 3 out of 10
You Scored:2
Total Questions:2
Attended Questions:2
Correct Answered:2
1. A small amount of memory included in the processor for high speed access id called _____





2. Hardware that adds two numbers is _________





3. Read each sentence to find out whether there is any error in it. The error, will be in one part of sentence. The option mentioned in that part will be your answer.





4. Primary memory is used by the __________





5. Two numbers are in the ratio of 1:2. If 7 be added to both, their ratio changes to 3:5. The greater number is



Explanation:

a/b = 1/2 and (a+7)/(b+7) = 3/5

Go from the option, by substituting the values, we will get the number 14 satisfying the condition

=> a= 14 and b = 28


6. Specialized programs that allow particular input or output devices to communicate with the rest of the computer system are called ____





7. Find the value of 0.18x0.18 + 1.18x1.18 - 2x0.2124 = ?



Explanation:

0.18x0.18 + 1.18x1.18 - 2 x 0.2124 = (0.18)^2+(1.18)^2 - 2 x (0.18) x (1.18) = (1.18 - 0.18)^2 =(1)^2=1 Formula reference : a^2 + b^2 - 2 x a x b = ( a - b )^2


8. The Union Cabinet under Chairmanship of Prime Minister Narendra Modi has approved mega auction of all available spectrum (more than 2300 Megahertz) across how many bands?



Explanation:

The Union Cabinet has approved mega auction of all available spectrum (more than 2300 Megahertz) across the seven bands.


9. 6, 12, 20, 30, ?



Explanation:

6 = (2 x 3), 12 =(3 x 4), 20 =(4 x 5), 30 =(5 x 6), => 6 x 7 = 42


10. The product of two consecutive even numbers is 15128. Find the average of these two numbers.



Explanation:

We wil go from the option. We will eliminate 133 and 139, since their product will exceed 16900.

Now the tug of war is between 123 and 127.

Lets take 123, if 123 is the average then the consecutive even numbers will be 122 and 124.

Now, observe, 122 x 124 = ....8, that is the resulting number ends with 8.

Now you try for 127.

(HINT : The consecutive even number with 127 as average us 126 and 128)

The two numbers are 122 and 124. Average is 123.


11. The number of tickets of Movie B sold in Hyderabad was approximately what percentage of the total number of tickets of the same movie sold in all the cities together?



Explanation:

Required Percentage = (34x100)/(15+19+24+21+34+27) =3400/140 = 24% (approx)


12. by the front (1) / door for all to see(2) / Our company name (3)/ was modestly displayed (4)





13. Ambition is one of those ___________ which are _______ satisfied





14. _______ my knowledge, Mr.Sinha has a prejudice __________ foreigners





15. Read each sentence to find out whether there is any error in it. The error, will be in one part of sentence. The option mentioned in that part will be your answer.





16. What is the difference between the number of tickets of Movie D sold in Kolkata and the number of tickets of movie B sold in Lucknow



Explanation:

Required difference = 27-21 = 6 (in terms of thousand) = 6000


17. Find the value of 0.31x0.31 + 1.81x1.81 - 2x0.5611 = ?



Explanation:

0.31x0.31 + 1.81x1.81 - 2 x 0.5611 = (0.31)^2+(1.81)^2 - 2 x (0.31) x (1.81) = (1.81 - 0.31)^2 =(1.5)^2=2.25 Formula reference : a^2 + b^2 - 2 x a x b = ( a - b )^2


18. When a bus started from the first stop, the number of male passengers to the number of female passengers was 3: 1. At the first stop, 16 passengers got down and 6 more female passengers got in. The ratio of the male to female passengers now became 2:1. What was the total number of passengers in the bus when it started from the first stop?



Explanation:

Males = 3x, Females = x.

First stop, m males left, f females left the bus and 6 females got.

No. of females = x - f + 6

(3x-m) / (x-f+6) = 2/1

=> 3x -2 = 2x - 2f + 12

Also m + f=16

x = 28 - 3f,

f=4 and x= 16 Number of passengers in the beginning = 4x = 64


19. The Union Cabinet has approved proposal of extending the deadline for implementing the UDAY scheme to which year?



Explanation:

The Union Cabinet has approved proposal of extending the deadline for implementing the Ujjwal Discom Assurance Yojana (UDAY) by a year to March 31, 2017.


20. Which state Assembly has passed through a headcount the Bill to conduct indirect election of Mayors on 23 June 2016?



Explanation:

The Tamil Nadu Assembly has passed through a headcount the Bill to conduct indirect election of Mayors on 23 June 2016.


21. The Government of India has announced a new CNG retrofitment scheme for the two-wheelers in which city?



Explanation:

The Government of India has announced a new CNG retrofitment scheme for the two-wheelers in Delhi 23 June 2016 .


22. Find the simple interest on Rs. 1080 at 10 % per annum for 9 months



Explanation:

Principal : 1080 Rate of interest : 10 Number of months : 9 Simple Interest for 1 year = (1080 x 1 x 10) / 100 Simple Interest for 1 year = 108 Simple interest for 9 months = (9/12) x SI Simple Interest for 9 months = 81


Six plays A, B, C, D, E and F are staged on six days of the week starting from Monday to Saturday. Play C is staged on Tuesday. Plays A, F and B are staged one after other in the same order. Play D is not staged on Monday or Wednesday.

23. Three of the following four form a group based on the days that they are staged. Which one of the option do not belong to that group



Explanation:

A ? Wed , B ? Fri , C ? Tue , D ? Sat , E ? Mon , F ? Thu Mon ? E , Tue ? C , Wed ? A , Thu ? F , Fri ? B , Sat ? D


24. The difference between a two digit number and the number obtained by interchanging two digits of the number is 9.The sum of the two digits of the number is 15. What is product of the two digits of two digit number ? 



Explanation:

Sum of the digits is 15, this can happen only when the digits are 7 and 8.

The number is 87, interchanging digits we get 78,

Difference between these two numbers = 9

Product of these two digits = 7 x 8 = 56


25. where he busied himself (1) / Compelled to abdicate, he (2)/ withdrew to a monastery, (3) / with writing commentaries on the Scriptures (4)





26. Read each sentence to find out whether there is any error in it. The error, will be in one part of sentence. The option mentioned in that part will be your answer.





27. Everyone was _________ by surprise when she _________ her plan to marry that boy.





28.





If citizens can not have the right to commit suicide, they cannot be allowed to stay in an atmosphere full of smoke because that might cause certain chronic disease leading to their unnatural death. Thus, there should be a complete ban on smoking in all the public places across the country. The recent Supreme Court order banning smoking in public places is not restricted to a few metropolitan towns; it must be enforced in all the villages and cities. The three-page order contains certain statements of facts. ?Fundamental right guaranteed under Article 21, of the Constitution provides that none shall be deprived of his life without due process law. Than why a non-smoker should be afflicted by various diseases including lung cancer or of heart only because he is required to go to public places?? Some time back when the court ruled that suicide was unconstitutional and illegal, it had referred to Article 21, which says that State alone has the right to deprive a citizen of his life, but with due process of law. Thus inhaling of smoke by passive smokers has been equated with commission of suicide, an act prohibited under law. But when a person who makes an unsuccessful attempt to commit is liable to face criminal prosecution which man end in his conviction, a passive smoker, however, is immune from any penal action. If one is made to inhale smoke for no fault of his and also against his wishes, the perpetrator of offence of smoking gets away with a nominal fine for such a grave offence that costs the exchequer Rs. 13,500 crore annually in terms of loss of productivity. According to WHO report, smoking may kill seven million people annually. During the last half century, smoking killed more than 10 million people in the developing countries alone. The court also felt that the persons not indulging in smoking cannot be compelled to or subjected to passive smoking on account of acts of the smokers. The ban on smoking order is judicial intervention, and not an activism.

29. Opposite meaning of Afflicted







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