MCQ in Physics Part 1 - ECE Board Exam PDF

Summary

This document is a practice quiz for the ECE board exam, focusing on physics. It contains multiple choice questions (MCQs) covering various physics topics and concepts, with explanations included. The questions focus on the standard units of physical quantities, physical phenomena, potential difference, etc.

Full Transcript

1 MCQ in Physics Part 1 | ECE Board Exam | This is the Multiples Choice Questions Part 1 of the Series in Physics as one of the General Engineering and Applied Sciences (GEAS) topic. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize in each and every questions comp...

1 MCQ in Physics Part 1 | ECE Board Exam | This is the Multiples Choice Questions Part 1 of the Series in Physics as one of the General Engineering and Applied Sciences (GEAS) topic. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize in each and every questions compiled here taken from various sources including past Board Questions in General Engineering and Applied Sciences (GEAS), Physics Books, Journals and other Physics References. Start Practice Exam Test Questions Choose the letter of the best answer in each questions. 1. What is the standard unit of mass? A. Kilogram B. Pound C. Gram D. Newton View Answer: Answer: Option A Explanation: 2. What is defined as the distance the light travels in a vacuum in 1/299,792,458 second? A. Yard B. Feet C. Meter D. Inch View Answer: Answer: Option C Explanation: 3. What is the SI unit of work? A. Newton B. Watt C. Newton-Second D. Joule View Answer: Answer: Option D Explanation: 4. What is the SI unit of power? A. Newton B. Watt C. Newton-Second D. Joule View Answer: Answer: Option B Explanation: 5. What is the SI unit of temperature? A. Fahrenheit B. Kelvin C. Celsius D. Rankine View Answer: Answer: Option B Explanation: 6. What is the SI unit of luminous intensity? A. Candela B. Lumens C. Lux D. Candlepower View Answer: Answer: Option A Explanation: 7. What is the unit of relative intensity? A. Pa B. N-m C. C.N-m/s D. Unitless View Answer: Answer: Option D Explanation: 8. What is the SI unit of pressure? A. Pa B. N-m C. N/m D. N-m/s View Answer: Answer: Option A Explanation: 9. Which one is equivalent of the unit “Pascal’? A. N/nm2 B. N/m2 C. N/m D. D.N/nm View Answer: Answer: Option B Explanation: 10. The pressure of 1 bar is equivalent to how many pascals? A. 1,000,000 B. 100,000 C. 10,000 D. 1000 View Answer: Answer: Option B Explanation: 11. What is the SI unit of intensity? A. Joule/m2 B. kg/m2 C. N/m2 D. watt/m2 View Answer: Answer: Option D Explanation: 12. What is the unit of potential difference? A. Watt B. Coulomb C. Volt D. Weber View Answer: Answer: Option C Explanation: 13. Which of the following is equivalent to a volt? A. watt/coulomb B. joule/coulomb C. joule/watt D. watt/joule View Answer: Answer: Option B Explanation: 14. One election volt is equivalent to _______ joules. A. 1.6 x 10^-17 B. 1.6 x 10^-18 C. 1.6 x 10 ^-19 D. 1.6 x 10^-20 View Answer: Answer: Option C Explanation: 15. What is the unit of capacitance? A. Farad B. Weber C. Coulomb D. Gauss View Answer: Answer: Option A Explanation: 16. Which of the following is equivalent to the unit “farad”? A. coulomb/volt B. joule/volt C. joule/coulomb D. coulomb/joule View Answer: Answer: Option A Explanation: 17. What is the unit of electric current? A. Volt B. Watt C. Ampere D. Coulomb View Answer: Answer: Option C Explanation: 18. Which of the following is equivalent to the unit “ampere”? A. joule/second B. volt/second C. coulomb/second D. watt/second View Answer: Answer: Option C Explanation: 19. What is the unit of resistance? A. Ohm B. Watt C. Volt D. Ampere View Answer: Answer: Option A Explanation: 20. Ohm is equivalent to which of the following? A. coulomb/ampere B. watt/ampere C. volt/ampere D. joule/ampere View Answer: Answer: Option C Explanation: 21. What is the unit of luminous intensity? A. Footcandle B. Lumen C. Candela D. Lux View Answer: Answer: Option C Explanation: 22. What is the unit of luminous flux? A. Candela B. Lumen C. Lux D. Footcandle View Answer: Answer: Option B Explanation: 23. Which of the following is equivalent to the unit “candela”? A. lumen/m2 B. footcandle/steradian C. lux/steradian D. lumen/steradian View Answer: Answer: Option D Explanation: 24. What is the unit of luminous efficiency? A. lumen/watt B. lumen/volt C. lumen/ampere D. lumen/coulomb View Answer: Answer: Option A Explanation: 25. What is the unit of illumination? A. Lux B. Lumen C. Candela D. Lumen/watt View Answer: Answer: Option A Explanation: 26. Lux is equivalent to which combination of units? A. lumen/cm2 B. lumen/ft2 C. lumen/m2 D. lumen/in2 View Answer: Answer: Option C Explanation: 27. Footcandle is equivalent to which combination of units? A. lumen/cm2 B. lumen/ft2 C. lumen/m2 D. lumen/in2 View Answer: Answer: Option B Explanation: 28. How many dynes are there in one newton? A. 10,000 B. 100,000 C. 1,000,000 D. 1000 View Answer: Answer: Option B Explanation: 29. What is an elemental unit of energy? A. Quartz B. Quark C. Photon D. Quantum View Answer: Answer: Option D Explanation: 30. What refers to the mass which is accelerated at the rate of one foot per second when acted on by a force of one pound? A. Slug B. Erg C. Dyne D. BTU View Answer: Answer: Option A Explanation: 31. The size of some bacteria and living cells is in the order of _______. A. centimetre B. millimetre C. nanometer D. micrometer View Answer: Answer: Option D Explanation: 32. The size of the largest atom is in the order of ________. A. centimeter B. millimeter C. nanometer D. micrometer View Answer: Answer: Option C Explanation: 33. The mass of a grain of salt is in the order of _______. A. milligram B. gram C. microgram D. nanogram View Answer: Answer: Option A Explanation: 34. Which one is equivalent to the unit ‘joule’? A. Newton-second B. Newton-meter C. Newton-meter per second D. Newton-meter per second squared View Answer: Answer: Option B Explanation: 35. Which one is equivalent to the unit “watt”? A. Newton-second B. Newton-meter C. Newton-meter per second D. Newton-meter per second squared View Answer: Answer: Option C Explanation: 36. One horsepower is equivalent to how many watts? A. 550 B. 746 C. 33,000 D. 250 View Answer: Answer: Option B Explanation: 37. The “kilowatt-hour” is a unit of _______. A. work B. energy C. power D. work or energy View Answer: Answer: Option D Explanation: 38. The “kilowatt-hour” is a unit of _______. A. work B. energy C. power D. work or energy View Answer: Answer: Option D Explanation: 39. The English unit “slug” is a unit of _______. A. mass B. weight C. force D. energy View Answer: Answer: Option A Explanation: 40. How is sound intensity measured? A. In beats B. In decibels C. In phons D. In sones View Answer: Answer: Option B Explanation: 41. An electron volt is the energy required by an electron that has been accelerated by a potential difference of how many volts? A. 1 volt B. 0.1 volts C. 10 volts D. 0.01 volts View Answer: Answer: Option A Explanation: 42. What is a vector with a magnitude of one and with no unit? A. Single vector B. Unit vector C. Dot vector D. Scalar vector View Answer: Answer: Option B Explanation: 43. What is the purpose of a unit vector? A. To describe the direction in space B. To indicate a magnitude without reference to direction C. To serve as comparison with other vectors D. To set a standard among vectors View Answer: Answer: Option A Explanation: 44. What is another term for a scalar product of two vectors? A. Cross product B. Vector product C. Dot product D. Plus product View Answer: Answer: Option C Explanation: 45. What is another term for vector product of two vectors? A. Cross product B. Vector product C. Dot product D. Plus product View Answer: Answer: Option A Explanation: 46. The scalar product of two perpendicular vectors is always _______. A. equal to 1 B. greater than 1 C. less than 1 D. equal to 0 View Answer: Answer: Option D Explanation: 47. The vector product of two parallel or antiparallel vectors is always ______. A. equal 1 B. greater than 1 C. less than 1 D. equal to 0 View Answer: Answer: Option D Explanation: 48. The vector product of any vector with itself is ______. A. equal to 1 B. greater than 1 C. less than 1 D. equal to 0 View Answer: Answer: Option D Explanation: 49. What refers to physical quantities that are completely specified by just a number and a unit or physical quantities that have magnitudes only? A. Scalar quantities B. Vector product C. Dot product D. Vector quantities View Answer: Answer: Option A Explanation: 50. What refers to physical quantities that have a magnitude and a direction? A. Scalar quantities B. Vector quantities C. Dot product D. Vector quantities View Answer: Answer: Option D Explanation: NEXT: MCQ in Physics Part 2 Online Questions and Answers in Physics Series Following is the list of practice exam test questions in this brand new series: College Physics MCQs PART 1: MCQ from Number 1 – 50 Answer key: PART 1 PART 2: MCQ from Number 51 – 100 Answer key: PART 2 PART 3: MCQ from Number 101 – 150 Answer key: PART 3 PART 4: MCQ from Number 151 – 200 Answer key: PART 4 PART 5: MCQ from Number 201 – 250 Answer key: PART 5 PART 6: MCQ from Number 251 – 300 Answer key: PART 6 PART 7: MCQ from Number 301 – 350 Answer key: PART 7 PART 8: MCQ from Number 351 – 400 Answer key: PART 8 PART 9: MCQ from Number 401 – 450 Answer key: PART 9 PART 10: MCQ from Number 451 – 500 Answer key: PART 10 MORE ON: MCQ in Physics Series Complete List of MCQs in General Engineering and Applied Science per topic Series of MCQ in General Engineering and Applied Science

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