Mechanics and Statistics MCQ
1. What is Newton's Third Law?
Answer
Correct Answer:
Every action has an equal and opposite reaction.
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2. What does N /A stand for?
Answer
Correct Answer:
Not available
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3. What is quantitative data?
Answer
Correct Answer:
Numerical Data that can be discrete or continuous
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4. What is another name for quantitative data?
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Correct Answer:
Numerical Data
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5. What is qualitative data?
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Correct Answer:
Data that is descriptive and divided into categories.
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6. What is the Critical Region?
Answer
Correct Answer:
The region outside the acceptable region.
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7. What is the first rule of Tree Diagrams?
Answer
Correct Answer:
Write a probability on every branch
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8. What is the main purpose of a model?
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Correct Answer:
To make predictions
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9. What are dependent events?
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Correct Answer:
Events that influence each other
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10. What does extrapolation mean?
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Correct Answer:
Estimating a value outside the range of data that you have
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11. What does interpolation mean?
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Correct Answer:
Estimating a value within the range of data you have
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12. What is data cleaning?
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Correct Answer:
Identifying and removing invalid data points from a data set.
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13. What is the linear interpolation formula?
Answer
Correct Answer:
Lower Bound + (Number into class - Number of previous classes) * Class Width/Class Frequency.
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14. What is the name of the sampling method that is used when the most conveniently available sampling units that meet required criteria are selected?
Answer
Correct Answer:
Opportunity Sampling
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15. What does quote sampling involve?
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Correct Answer:
Selecting a predetermined number of sampling units with certain defined characteristics.
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16. What is random sampling?
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Correct Answer:
Every member of the population has an equal chance of selection.
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17. In statistics, what is the population?
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Correct Answer:
Every item or person within a group that you want to find information about.
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18. What is the textual method?
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Correct Answer:
A method of narration using words and text
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19. What is the meaning of secondary data?
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Correct Answer:
Data/information collected from published or unpublished resources
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20. What is primary data?
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Correct Answer:
Data from an original source of data
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21. What does ratio level Processes mean?
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Correct Answer:
All the characteristics of interval measurement and here exists a true zero
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22. What is the level of measurement that includes a true zero?
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23. What is the interval level of measurement?
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Correct Answer:
Ranks data and precise difference between units of measure do exist, there is no meaningful zero
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24. What is the definition of "dependent variable"?
Answer
Correct Answer:
The outcome variables being observed
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25. What is the name for the type of variable being observed in a study when the outcome variable is dependent?
Answer
Correct Answer:
Dependent variable
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26. Which of the following is an ordinal level data type?
Answer
Correct Answer:
Precise differences bet. the ranks do not exist
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27. What is the definition of a dependent variable?
Answer
Correct Answer:
The outcome variables being observed
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28. What is the term for a variable that is being measured or observed?
Answer
Correct Answer:
Independent variable
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29. What does the word "continuous" mean?
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30. What is the next value in the sequence: 1, 3, 5, 7?
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31. What does quantitative data refer to?
Answer
Correct Answer:
Countable or measurable attributes
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32. Which of the following is a Qualitative Research Method?
Answer
Correct Answer:
Focus Groups
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33. What is Qualitative?
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Correct Answer:
Attributes that are not numerical
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34. What is a variable?
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Correct Answer:
A characteristic or attribute of interest
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35. What is a parameter?
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Correct Answer:
Numerical measurement describing the population
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36. What is the main purpose of Inferential Statistics?
Answer
Correct Answer:
Making predictions
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37. What is Descriptive Statistics?
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Correct Answer:
A method of data analysis that deals with summarizing and describing data.
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38. What is statistics?
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Correct Answer:
The science of conducting studies
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39. What is the goal of medicine?
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Correct Answer:
To determine the effect of various drugs
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40. What is the study of the factors that affect human behavior called?
Answer
Correct Answer:
Behavioral Sciences
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41. Sampling and quality assurance are important in which industry?
Answer
Correct Answer:
Manufacturing and Engineering
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42. What is Economics?
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Correct Answer:
The study of how people use resources and goods to satisfy their needs and wants.
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43. What is business planning?
Answer
Correct Answer:
The process of creating a business plan
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44. What is a confidence interval?
Answer
Correct Answer:
A range of acceptable outcome values
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45. What is the chance of the experiment being valid?
Answer
Correct Answer:
Test of significance
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46. What is the name for a more polarizing distribution with smaller sample sizes?
Answer
Correct Answer:
Bell curve
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47. What is the name of the symmetrical probability distribution that is defined by a bell-shaped curve?
Answer
Correct Answer:
Normal distribution
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48. What is systematic sampling?
Answer
Correct Answer:
A method of sampling that involves selecting a unit from an ordered sampling frame at fixed intervals
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49. What does simple random sampling mean?
Answer
Correct Answer:
All members have the same probability of being selected
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50. What is Perameter?
Answer
Correct Answer:
Characteristic of the population like blue eyes or whatever characteristic
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51. What is statistical inference?
Answer
Correct Answer:
Generalizing about population from sample
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52. How do you calculate the coefficient of correlation?
Answer
Correct Answer:
You divide the covariance of X and Y by the product of the standard deviations of X and Y.
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53. What is linear regression used for?
Answer
Correct Answer:
Ability to predict future outcome
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54. What is the variance of the square of the standard deviation?
Answer
Correct Answer:
The square of the standard deviation
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55. What does standard deviation measure?
Answer
Correct Answer:
How much a sample deviates from the mean
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56. What does degree of dispersion of data tell us?
Answer
Correct Answer:
Measures of variation
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57. What is the mode?
Answer
Correct Answer:
Most frequent value
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58. What is the value of the median?
Answer
Correct Answer:
Middle data point
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59. What is population?
Answer
Correct Answer:
A set of all possible observation
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60. Which of the following is NOT a characteristic of a histogram?
Answer
Correct Answer:
Frequency on horizontal axis and measurements on vertical axis
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61. What is the systematic collection of data illustrating the frequency at which a value occurs called?
Answer
Correct Answer:
Frequency distribution
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62. What is the main purpose of descriptive statistics?
Answer
Correct Answer:
To describe important features of data
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63. What is the science of decision making called?
Answer
Correct Answer:
Statistics
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64. What is the centre of mass?
Answer
Correct Answer:
A point on a body where the entire mass of the body is assumed to be concentrated
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65. What is the Centre of Gravity?
Answer
Correct Answer:
The point at which the force of gravity acts on a body
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66. What is the ratio of velocity of driven pulley to the velocity of driving/driver pulley?
Answer
Correct Answer:
Velocity Ratio
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67. What is the angle of V-belt?
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68. From which material are flat belts made?
Answer
Correct Answer:
Leather, cotton, rubber
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69. What is the max angle of inclination of plane in which the body remains in equilibrium under the action of friction only called?
Answer
Correct Answer:
Angle of Repose
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70. What is the angle of friction?
Answer
Correct Answer:
The angle between the normal reaction and the resultant of frictional force.
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71. What does the coefficient of friction tell us?
Answer
Correct Answer:
The ratio of frictional force to the normal reaction between the contact surface.
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72. What is the name of the frictional force that is encountered when the motion is just beginning?
Answer
Correct Answer:
Limiting friction
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73. What is the name of the friction experienced by the body when it is in motion?
Answer
Correct Answer:
Dynamic/kinematic friction
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74. What is Frictional Force?
Answer
Correct Answer:
It is the force distribution at the surface of contact and tangential to the surface of contact.
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75. What is a strut?
Answer
Correct Answer:
A member under compression
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76. What is a "Tie A member"?
Answer
Correct Answer:
A member under tension
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77. What does uniformly distributed load mean?
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Correct Answer:
The load is evenly distributed over the entire length of the beam.
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78. What is a continuous beam?
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Correct Answer:
A beam provided with more than two supports.
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79. What is an overhanging beam?
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Correct Answer:
A beam having one or both ends extended over the support.
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80. What is the definition of Span?
Answer
Correct Answer:
The horizontal distance between the support
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81. Freely supported beam implies that the supports exert forces with no moment on the beam. True or false?
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82. What is a simply supported beam?
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Correct Answer:
A beam made to freely rest on supports which may be knife edges or rollers.
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83. What is a fixed beam?
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Correct Answer:
A beam having both ends fixed.
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84. What is Cantilever beam?
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Correct Answer:
A beam having its one end fixed and other end free to deflect.
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85. What can Moment of force be measured by?
Answer
Correct Answer:
The product of force and the perpendicular of the line of action from that point.
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86. What is a rigid body?
Answer
Correct Answer:
A body in which the relative position of any 2 particles does not change the action of force
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87. What does it mean when a body is in equilibrium?
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Correct Answer:
The body is at rest or continues to be in steady linear motion.
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88. What is the resultant of a force system?
Answer
Correct Answer:
The process of finding the composition of forces
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89. What is a resultant of concurrent forces?
Answer
Correct Answer:
A single force having same effect as that of a number of forces acting on a given body.
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90. In a concurrent force system, the line of action of all forces in the system pass through a ________.
Answer
Correct Answer:
Single point
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91. What is the name of the force system in which all forces are parallel to each other and lie in the same plane?
Answer
Correct Answer:
Coplanar Parallel Force system
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92. What is a coplanar force system?
Answer
Correct Answer:
A system of forces acting on a body and all lie in the same plane
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93. In aCollinear Force system, the line of action of all forces act along _____.
Answer
Correct Answer:
The same line
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94. What are vector quantities?
Answer
Correct Answer:
Quantities which are determined by magnitude as well as direction.
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95. Scalar quantities are determined by what?
Answer
Correct Answer:
Magnitude
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96. Kinematics is a branch of ___________.
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97. What is the study of motion without reference to the forces that cause it called?
Answer
Correct Answer:
Kinematics
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98. What is kinetics?
Answer
Correct Answer:
The study of motion
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99. What is the study of motion of objects due to the action of forces called?
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100. What is the branch of mechanics which deals with force and its effects while acting upon the body in motion?
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101. What is the branch of mechanics which deals with force and its effects while acting upon the body at rest?
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102. According to Newton's Third Law of Motion, for every action there is what?
Answer
Correct Answer:
Equal and opposite reaction.
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103. Full form of NASA
Answer
Correct Answer:
National Aeronautics and Space Administration
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Architectural Engineering MCQs | Topic-wise