practice set 4 for crpf radio operator , radio fitter and crpf cipher 2025
PRACTICE SETS 4
#1. From what location are the 1st computer instructions available on boot up?
#2. With respect to a network interface card, the term 10/100 refers to
#3. A hard disk is divided into tracks which are further subdivided into
#4. The mouse pointer moves erratically, what is the possible cause? The mouse
#5. Which provides the fastest access to large video files?
#6. RS-232 is a standard that applies to:
#7. On a dot matrix printer, you should never lubricate which part?
#8. _____ helps to prevent power surges.
#9. If the memory slots have 30 pins then the chip is a?
#10. What is a common language that computers use to talk with one another on a network
#11. IDE cables have how many pins?
#12. The brain of any computer system
#13. What difference does the 5th generation computer have from other generation computers?
#14. The binary system uses powers of
#15. A computer program that converts assembly language to machine language is
#16. Which device of computer operation dispenses with the use of the keyboard?
#17. Which output device is used for translating information from a computer into pictorial form on paper.
#18. An optical input device that interprets pencil marks on paper the media is
#19. The device that can both feed data into and accept data from a computer is
#20. All formula start with which sign in ms-excel
#23. Window Vista is……………………………….software
#24. Which of the following is latest Office package
#25. The operating system of a computer serves as a software interface between the user an
#26. The programs which are as permanent as hardware and stored in ROM is known as
#27. Which of the following is an advantage to using fiber optics data transmission?
#28. A device that links two homogeneous packet-broadcast local networks, is
#29. What is the first octet range for a class C IP address?
#30. What is the other name for a LAN Card?
#31. 6 42 294 2058 14406 ?
#33. 2 16 112 672 3360 13440
#34. 7825 – 9236 + 5234 = ? * 25
#36. The product of two relative prime numbers is 143. Find their HCF
#37. The least number which when divided by 9, 11,and 15 leaves as remainder in each case, is
#38. Find the least number that is exactly divided by 8, 12 ,and 36
#39. In a school , all the students can stand in a row so that each row has 5, 9, 10 students. Find the least number of students in the school.
#40. The sum of two number is 10. Their product is 20. The sum of the reciprocals of the two numbers is
#41. Find the sum of all even number natural number upto 74.
#42. 51% of a number is 714. What is 28% of that number?
#43. Which is the greatest number which will divide 1600 and 1420 exactly ?
#44. The sum of first 20 odd natural numbers is equal to
#45. If 3 4 a 6 8 is to be divisible by 9, the value of missing digit, a should be
#46. Two-third of 10% 0f 60% of A is 32, Find the value of A
#47. The price of a computer is Rs 20000. What will be the price of computer after reduction of 25%?
#48. 46% 0f 156 – 23.76 = ?
#50. 940.9 + 9.9 + 90.09 + 99.9999 = ?
#51. A continuous flow of electron is called
#52. A charge produced due to gain of an electron is…………..
#53. What is the electric potential of the earth.
#54. Ohm’s law is valid for………..
#55. If a bulb is taken out of a parallel circuit
#56. Core of strong electromagnet consist of
#57. During short circuit current in the circuit
#58. Fuse is a small piece of wire generally prepared from alloy of………….
#59. Which of the following is renewable energy?
#60. The component of solar radiation that carries heat with it is
#61. ……………..is natural gas produced from waste products.
#62. The energy of moving wind is called
#63. The formula for electrical current is:
#64. The energy stored in petrol is……..
#65. If the current in a circuit equals 0 , it is likely that the
#66. Abiotic factor do not include……………….
#67. Plants are also called
#68. Ozone is a molecule formed by how many oxygen atoms?
#69. Light travels in a straight line because………………
#70. How does a mirror work?
#71. E.N.T specialist uses……………..mirror for examination of ear, nose and throat
#72. When light passes from one medium to another, the characteristic that remains unaffected is
#73. Which is an expanded form of DNA
#74. The wings of a birds and butterfly are………………….
#75. Light travels faster in
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