System of Numbers and Convertion

MCQs in System of Numbers and Conversion Part IChoose the letter of the best answer in Problem 6: ECE Board April 1991 each questions. Round off 2.371 x 108 to two significant figures. Problem 1: ME Board October 1996  A. 2.4 x 10-8 How many significant digits do 10 097  B. 2.37 x 10-8 have?  C 0.2371 x 10-9  D. 0.002371 x 10-11  A. 2  B. 3 Problem 7: EE Board October 1994  C. 4  D. 5 7 + 0i is Problem 2: ECE Board April 1991  A. irrational number  B. real number Round off 0.003086 to three significant  C. imaginary number figures.  D. a variable  A. 0.003 Problem 8: ECE Board March 1996  B. 0.00309  C. 0.0031 The number 0.123123123123 .. . is  D. 0 00308  A. irrational Problem 3: ECE Board April 1991  B. surd  C. rational Round off 34.2814 to four significant figures.  D. transcendental  A 34 2814 Problem 9: ECE Board April 1991  B. 34.281  C. 34.28 Round off 6785768.342 to the nearest one-  D 34.0 tenth. Problem 4: ME Board April 1996  A. 6785768  B 6785768.4 Which number has three significant figures?  C. 6785768.3  D None of these  A. 0.0014  B. 1.4141 Problem 10: EE Board April 1993  C. 0.01414  D. 0.0141 Express decimally. Fourteen Ten thousandths Problem 5: ECE Board April 1991  A. 0.0014 Round off 149.691 to the nearest integer  B. 0.00014  C 0.014  A. 149.69  D 0.14  B. 149.7  C. 150  D 149 MCQs in System of Numbers and Conversion Part I Problem 11: ECE Board March 1996 Problem 16: ME Board April 1997 MCMXCIV is equivalent to what number? What is the value in degrees of 1 radian?  A. 1964  A. 90  B. 1994  B. 57.3  C. 1984  C. 100  D. 1974  D. 45 Problem 12: EE Board April 1993 Problem 17: CE Board May 1993 Express decimally: Fourty-Sevenmillionth 3200 mils is equal to how many degrees?  A. 0 00000047  A. 45°  B. 0.0000047  B. 90°  C. 0.000047  C. 180°  D. 0.000000047  D. 270° Problem 13: EE Board April 1993 Problem 18: ECE Board November 1995 Express decimally: Seven hundred twenty- An angular unit equivalent to 1/400 of the five hundred thousandths circumference of a circle is called  A. 0.000725  A. mil  B. 0.00725  B. degree  C. 0.0725  C radian  D. 0.725  D. grad Problem 14: EE Board April 1993 Problem 19: ECE Board April 1999 Express decimally: Four and two tenth 4800 mils is equivalent to _____ degrees.  A. 0.042  A. 135  B. 4.02  B. 270  C. 4.2  C. 235  D 0.42  D. 142 Problem 15: ECE Board November 1995 Problem 20: ME Board April 1996 Express 45° in mils How many degrees Celsius is 100 degrees Fahrenheit?  A. 80 mile  B. 800 mils  A. 2.667° C  C. 8000 mils  B. 1.334' C  D. 80000 mils  C. 13.34° C  D. 37.8° C MCQs in System of Numbers and Conversion Part I Problem 21: EE Board October 1990 Problem 26: EE Board October 1994 What is the absolute temperature of the The micro or µ means freezing point of water in degree Rankine?  A. 10-2  A. 492  B. 10-6  B. 0  C. 10-3  C. 460  D 10-12  D. 273 Problem 27: RME Board October 1994 Problem 22: ME Board October 1994 The prefix pico means What is the Fahrenheit equivalent of 100 degrees Celsius?  A. 10-12 of a unit  B. 10-6 of a unit  A. 200  C. 10-15 of a unit  B. 180  D. 10-9 of a unit  C. 212  D. 100 Problem 28: ME Board April 1999 Problem 23: EE Board April 1993 The prefix nano is opposite to The temperature 45° C is equal to  A. mega  B. giga  A. 45° F  C. tera  B. 113° F  D hexa  C. 57° F  D 81° F Problem 29: Problem 24: ME Board October 1994 1 foot is to 12 inches as 1 yard is to spans. How many degrees Celsius is 80 degrees  A. 4 Fahrenheit?  B. 6  C. 9  A. 13.34  D. 24  B. 1.334  C. 26.67 Problem 30: EE Board June 1990  D. 2.667 A one-inch diameter conduit is equivalent to Problem 25: ME Board October 1996  A. 254 mm 10 to the 12th power is the value of the prefix  B. 25.4 mm  C. 100 mm  A. micro  D. 2 54 mm  B. femto  C. teta  D. Atto MCQs in System of Numbers and Conversion Part I Problem 31: Problem 36: If a foot has 12 inches. then how many A certain luxury ship cruises Cebu to Manila hands are there in one foot? at 21 knots. If it will take 21 hours to reach Manila from Cebu. the distance travelled by  A. 3 the ship is nearly  B. 4  C. 6  A. 847 5 km  D. 8  B. 507.15 statute mile  C. 441 statute mile Problem 32:  D. 414 nautical mile How many feet difference is 1 nautical mile Problem 37: EE Board October 1994 and 1 statute mile? Carry out the following multiplication and  A. 100 feet express your answer in cubic meter: 8 cm x  B. 200 feet 5 mm x 2m.  C. 400 feet  D. 800 feet  A. 8 x 10-2  B. 8 x 102 Problem 33:  C. 8 x 10-3  D. 8 x 10-4 In a hydrographic survey, a certain point below the surface of the water measures 12 Problem 38: fathoms. It is equivalent to a deep of how many feet? Which of the following is equivalent to 1 hectare?  A. 72  B. 60  A. 100 ares  C. 48  B. 2 acres  D. 36  C. 1000 square meters  D. 50000 square feet Problem 34: Problem 39: The legendary ship, Titanic that slink in 1912 was estimated to be at the sea bottom Ten square statute miles is equivalent to at a deep of 18 cables. How deep it is in sections. feet?  A. 100  A. 12,000  B. 5  B. 12.343  C. 10  C. 12,633  D. 20  D. 12,960 Problem 40: Problem 35: ME Board October 1994 The land area of the province of Cebu is How many square feet is 100 square meters? 5088.39 sq. km. This is equivalent to  A 328.1  B. 929  A. 5088.39 hectares  C. 32.81  B. 1964.64 sq. miles  D. 1076  C. 2257907.2 acres MCQs in System of Numbers and Conversion Part I  D. 5.08839 acres Problem 46: ME Board October 1996 A 7 kg mass is suspended in a rope. What Problem 41: ME Board October 1994 is the tension in the rope in SI? How many cubic feet is 100 gallons of liquid?  A. 68.67 N  B. 70 N  A. 74.80  C. 71 N  B. 1.337  D. 72 N  C. 13.37  D. 133.7 Problem 47: A 10-liter pail is full of water. Neglecting the Problem 42: ME Board October 1994, ME weight of the pail, how heavy is its water Board April 1998 content? How many cubic meters is 100 gallons of liquid?  A. 5 kg  B. 6.67 kg  A. 1.638  C. 10 kg  B. 3.785  D. 12.5 kg  C. 0.164  D. 0.378 Problem 48: The unit of work in the mks system is known Problem 43: ME Board October 1994 as joule (J) and the unit of work in the cgs How many cubic meters is 100 cubic feet of system is erg. How many ergs are there in liquid? one joule?  A. 3.785  A. 106  B. 28.31  B. 107  C. 37.85  C. 105  D. 2.831  D. 104 Problem 44: Problem 49: ME Board April 1998 Ten (10) cubic meter is equivalent to how One horsepower is equivalent to many stere?  A. 746 watts  A. 5  B. 7460 watts  B. 10  C. 74.6 watts  C. 20  D. 7.46 watts  D. 100 Problem 50: ME Board October 1994 Problem 45: ME Board April 1995 How many horsepower is 746 kilowatts? The standard acceleration due to gravity is  A. 500  A. 32.2 ft/s2  B. 74.6  B. 980 ft/s2  C. 100  C. 58.3 ft/s2  D. 1000  D. 35.3 ft/s2 MCQs in System of Numbers and Conversion Part I 22. 212 Answer Key: Review: Solution for Number 22 1. 5 23. 113° F 2. 0.00309 Review: Solution for Number 23 3. 34.28 24. 26.67° C 4. 0.0141 Review: Solution for Number 24 5. 150 25. teta 6. 2.4 x 10 -8 26. 10-6 7. real number 27. 10-12 of a unit 8. rational 28. giga 9. 6785768.3 29. 4 spans 10. 0.0014 Review: Solution for Number 29 11. 1994 30. 25.4 mm Review: Solution for Number 11 31. 3 hands 12. 0.000047 Review: Solution for Number 31 13. 0.00725 32. 800 feet 14. 4.2 Review: Solution for Number 32 15. 800 mils 33. 72 feet Review: Solution for Number 15 Review: Solution for Number 33 16. 57.3 34. 12,960 feet Review: Solution for Number 16 Review: Solution for Number 34 17. 180° 35. 1076 ft2 Review: Solution for Number 17 Review: Solution for Number 35 18. grad 36. 507.15 statute mile 19. 270 Review: Solution for Number 36 Review: Solution for Number 19 37. 8 x 10-4 m3 20. 37.8° C Review: Solution for Number 37 Review: Solution for Number 20 38. 100 ares 21. 492 Review: Solution for Number 38 Review: Solution for Number 21 39. 10 sections MCQs in System of Numbers and Conversion Part I (Answer Key) 29. 4 spans 30. 25.4 mm 1. 5 31. 3 hands 2. 0.00309 32. 800 feet 3. 34.28 33. 72 feet 4. 0.0141 34. 12,960 feet 5. 150 35. 1076 ft2 6. 2.4 x 10-8 36. 507.15 statute mile 7. real number 37. 8 x 10-4 m3 8. rational 38. 100 ares 9. 6785768.3 39. 10 sections 10. 0.0014 40. 1964.64 sq. miles 11. 1994 41. 13.37 ft3 12. 0.000047 42. 0.378 m3 13. 0.00725 43. 2.831 m3 14. 4.2 44. 10 steres 15. 800 mils 45. 32.2 ft/s2 16. 57.3 46. 68.67 N 17. 180° 47. 10 kg 18. grad 48. 107 ergs 19. 270 49. 746 watts 20. 37.8° C 50. 1000 hp 21. 492 22. 212 23. 113° F 24. 26.67° C 25. teta 26. 10-6 27. 10-12 of a unit 28. giga