practice set 1 for crpf radio operator/ cipher/ radio fitter 2025


practice set 1

 

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

#2. The ability to recover and read deleted or damaged files from a criminal’s computer is an example of a law enforcement specialty called:

#3. Which of the following is NOT one of the four major data processing functions of a computer?

#4. ____________ is data that has been organized or presented in a meaningful fashion.

#5. The name for the way that computers manipulate data into information is called:

#6. Computers use the ____________ language to process data.

#7. The term bit is short for:

#8. ____________ is a set of computer programs used on a computer to help perform tasks.

#9. System software is the set of programs that enables your computer’s hardware devices and ____________ software to work together.

#10. Servers are computers that provide resources to other computers connected to a:

#11. ____________ are specially designed computers that perform complex calculations extremely rapidly.

#12. ADSL is an example of a ____________ connection.

#13. The key F12 opens a…………………………………in M S Power Point

#14. A feature of MS Word that saves the document automatically after certain interval is available on:

#15. The module not available in Selo is:

#16. VPNs provide security through ________________________

#17. Which short cut key inserts a new slide in current presentation?

#18. MAC OS is the product of________________.

#19. ______ is not a image format.

#20. Which do you press to enter the current date in a cell?

#21. Mail solution in Selo is provided by

#22. RSA Token is

#23. What are the main building blocks of a database?

#24. When a key is pressed on the keyboard, which standard is used for converting the keystroke into the corresponding bits

#25. Which key on the keyboard can be used to view slide show

#26. The programs which are as permanent as hardware and stored in ROM is known as

#27. Memory is made up of

#28. Which of the following is an advantage to using fiber optics data transmission?

#29. SCSI is a term related with

#30. What is the other name for a LAN Card?

#31. 55÷5.5-0.5 =?

#32. If 20% of a= 40% of b then a: b =?

#33. 4 X ? = 4062 ÷ 5

#34. If √4n = 256 , then n is

#35. (16% of 550) ÷ (Y % of 500) = 2.5, then y equal to

#36. The average of even numbers from 1 to 20 is

#37. 26 χ 23 ÷ 24 = 2x then x is equal to

#38. How many prime factors are there in prime factorisation of 5005

#39. If (2/x)+ (3/y) =13 and (5/x)- (4/y) = -2 then x and y is

#40. (Sec A + Tan A)(1-Sin A) =

#41. The angle of elevation of the top of a tower from a point on the ground , which is 30 mt away from the foot of the tower is 30˚ then height of the tower is

#42. The sum of 15 % of a positive number and 10 % of the same number is 70. What is twice of that number?

#43. What would be the simple interest accrued in four years on a principle of Rs. 18440 at the rate of 15 % per annum?

#44. A box contains 3 blue, 2 white and 4 red marbles. If a marbles is drawn at random from the box , the probability that it will be blue

#45. Point (-10,0) lies

#46. Mohan bought a cycle for Rs. 475 and then sold it at a loss of 8% of the cost price. For how much did he sell the cycle?

#47. (√3+√5)2 + (√3-√5)2 = ?

#48. Find the least number that exactly divided by a 8,12and36

#49. A person crosses a 400 mt long street in 8 minute, speed of that person in Km/hr

#50. (5ᴫ/3) radian =

#51. Which of the following waves cannot propagate in vacuum?

#52. Which one of the following statements is correct? A slab of ice kept in a room;

#53. The formula for electrical current is:

#54. If a gas in a fixed volume container is heated, the resultant pressure on the gas :

#55. If the current in a circuit equals 0 A, it is likely that the

#56. How many valence shell electrons are there in semiconductor atoms?

#57. An ammeter is used to measure

#58. If a waveform period is determined to be 10 microseconds in duration, what is the frequency of the signal?

#59. What is the name of a device that converts sound waves to electrical waves?

#60. Convert (11001001)2 to decimal

#61. Which of the gas is not known as green house gas?

#62. Permanent hardness of water may be removed by the addition of

#63. Which of the following is the lightest metal?

#64. Rectifiers are used to convert

#65. Sound travels with a different speed in media. In what order does the velocity of sound increase in these media?

#66. The maximum number of covalent formed by nitrogen is

#67. Plants absorb dissolved nitrates from soil and convert them into

#68. O2 released in the process of photosynthesis comes from

#69. Decibel is the unit used for

#70. Anaemia is caused in man due to the deficiency of……………………

#71. Which of the following is a term related with scanners?

#72. The most flexibility in how devices are wired together is provided by…..

#73. What is max data capacity for optical fiber cable?

#74. Which one of the following is a search engine?

#75. The unit of Inductance is ______________?

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