Mechanics and Statistics MCQ
What is Newton's Third Law?
Answer
Correct Answer:
Every action has an equal and opposite reaction.
Note: This Question is unanswered, help us to find answer for this one
What does N /A stand for?
Answer
Correct Answer:
Not available
Note: This Question is unanswered, help us to find answer for this one
What is quantitative data?
Answer
Correct Answer:
Numerical Data that can be discrete or continuous
Note: This Question is unanswered, help us to find answer for this one
What is another name for quantitative data?
Answer
Correct Answer:
Numerical Data
Note: This Question is unanswered, help us to find answer for this one
What is qualitative data?
Answer
Correct Answer:
Data that is descriptive and divided into categories.
Note: This Question is unanswered, help us to find answer for this one
What is the Critical Region?
Answer
Correct Answer:
The region outside the acceptable region.
Note: This Question is unanswered, help us to find answer for this one
What is the first rule of Tree Diagrams?
Answer
Correct Answer:
Write a probability on every branch
Note: This Question is unanswered, help us to find answer for this one
What is the main purpose of a model?
Answer
Correct Answer:
To make predictions
Note: This Question is unanswered, help us to find answer for this one
What are dependent events?
Answer
Correct Answer:
Events that influence each other
Note: This Question is unanswered, help us to find answer for this one
What does extrapolation mean?
Answer
Correct Answer:
Estimating a value outside the range of data that you have
Note: This Question is unanswered, help us to find answer for this one
What does interpolation mean?
Answer
Correct Answer:
Estimating a value within the range of data you have
Note: This Question is unanswered, help us to find answer for this one
What is data cleaning?
Answer
Correct Answer:
Identifying and removing invalid data points from a data set.
Note: This Question is unanswered, help us to find answer for this one
What is the linear interpolation formula?
Answer
Correct Answer:
Lower Bound + (Number into class - Number of previous classes) * Class Width/Class Frequency.
Note: This Question is unanswered, help us to find answer for this one
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
Note: This Question is unanswered, help us to find answer for this one
What does quote sampling involve?
Answer
Correct Answer:
Selecting a predetermined number of sampling units with certain defined characteristics.
Note: This Question is unanswered, help us to find answer for this one
What is random sampling?
Answer
Correct Answer:
Every member of the population has an equal chance of selection.
Note: This Question is unanswered, help us to find answer for this one
In statistics, what is the population?
Answer
Correct Answer:
Every item or person within a group that you want to find information about.
Note: This Question is unanswered, help us to find answer for this one
What is the textual method?
Answer
Correct Answer:
A method of narration using words and text
Note: This Question is unanswered, help us to find answer for this one
What is the meaning of secondary data?
Answer
Correct Answer:
Data/information collected from published or unpublished resources
Note: This Question is unanswered, help us to find answer for this one
What is primary data?
Answer
Correct Answer:
Data from an original source of data
Note: This Question is unanswered, help us to find answer for this one
What does ratio level Processes mean?
Answer
Correct Answer:
All the characteristics of interval measurement and here exists a true zero
Note: This Question is unanswered, help us to find answer for this one
What is the level of measurement that includes a true zero?
Note: This Question is unanswered, help us to find answer for this one
What is the interval level of measurement?
Answer
Correct Answer:
Ranks data and precise difference between units of measure do exist, there is no meaningful zero
Note: This Question is unanswered, help us to find answer for this one
What is the definition of "dependent variable"?
Answer
Correct Answer:
The outcome variables being observed
Note: This Question is unanswered, help us to find answer for this one
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
Note: This Question is unanswered, help us to find answer for this one
Which of the following is an ordinal level data type?
Answer
Correct Answer:
Precise differences bet. the ranks do not exist
Note: This Question is unanswered, help us to find answer for this one
What is the definition of a dependent variable?
Answer
Correct Answer:
The outcome variables being observed
Note: This Question is unanswered, help us to find answer for this one
What is the term for a variable that is being measured or observed?
Answer
Correct Answer:
Independent variable
Note: This Question is unanswered, help us to find answer for this one
What does the word "continuous" mean?
Note: This Question is unanswered, help us to find answer for this one
What is the next value in the sequence: 1, 3, 5, 7?
Note: This Question is unanswered, help us to find answer for this one
What does quantitative data refer to?
Answer
Correct Answer:
Countable or measurable attributes
Note: This Question is unanswered, help us to find answer for this one
Which of the following is a Qualitative Research Method?
Answer
Correct Answer:
Focus Groups
Note: This Question is unanswered, help us to find answer for this one
What is Qualitative?
Answer
Correct Answer:
Attributes that are not numerical
Note: This Question is unanswered, help us to find answer for this one
What is a variable?
Answer
Correct Answer:
A characteristic or attribute of interest
Note: This Question is unanswered, help us to find answer for this one
What is a parameter?
Answer
Correct Answer:
Numerical measurement describing the population
Note: This Question is unanswered, help us to find answer for this one
What is the main purpose of Inferential Statistics?
Answer
Correct Answer:
Making predictions
Note: This Question is unanswered, help us to find answer for this one
What is Descriptive Statistics?
Answer
Correct Answer:
A method of data analysis that deals with summarizing and describing data.
Note: This Question is unanswered, help us to find answer for this one
What is statistics?
Answer
Correct Answer:
The science of conducting studies
Note: This Question is unanswered, help us to find answer for this one
What is the goal of medicine?
Answer
Correct Answer:
To determine the effect of various drugs
Note: This Question is unanswered, help us to find answer for this one
What is the study of the factors that affect human behavior called?
Answer
Correct Answer:
Behavioral Sciences
Note: This Question is unanswered, help us to find answer for this one
Sampling and quality assurance are important in which industry?
Answer
Correct Answer:
Manufacturing and Engineering
Note: This Question is unanswered, help us to find answer for this one
What is Economics?
Answer
Correct Answer:
The study of how people use resources and goods to satisfy their needs and wants.
Note: This Question is unanswered, help us to find answer for this one
What is business planning?
Answer
Correct Answer:
The process of creating a business plan
Note: This Question is unanswered, help us to find answer for this one
What is a confidence interval?
Answer
Correct Answer:
A range of acceptable outcome values
Note: This Question is unanswered, help us to find answer for this one
What is the chance of the experiment being valid?
Answer
Correct Answer:
Test of significance
Note: This Question is unanswered, help us to find answer for this one
What is the name for a more polarizing distribution with smaller sample sizes?
Answer
Correct Answer:
Bell curve
Note: This Question is unanswered, help us to find answer for this one
What is the name of the symmetrical probability distribution that is defined by a bell-shaped curve?
Answer
Correct Answer:
Normal distribution
Note: This Question is unanswered, help us to find answer for this one
What is systematic sampling?
Answer
Correct Answer:
A method of sampling that involves selecting a unit from an ordered sampling frame at fixed intervals
Note: This Question is unanswered, help us to find answer for this one
What does simple random sampling mean?
Answer
Correct Answer:
All members have the same probability of being selected
Note: This Question is unanswered, help us to find answer for this one
What is Perameter?
Answer
Correct Answer:
Characteristic of the population like blue eyes or whatever characteristic
Note: This Question is unanswered, help us to find answer for this one
What is statistical inference?
Answer
Correct Answer:
Generalizing about population from sample
Note: This Question is unanswered, help us to find answer for this one
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.
Note: This Question is unanswered, help us to find answer for this one
What is linear regression used for?
Answer
Correct Answer:
Ability to predict future outcome
Note: This Question is unanswered, help us to find answer for this one
What is the variance of the square of the standard deviation?
Answer
Correct Answer:
The square of the standard deviation
Note: This Question is unanswered, help us to find answer for this one
What does standard deviation measure?
Answer
Correct Answer:
How much a sample deviates from the mean
Note: This Question is unanswered, help us to find answer for this one
What does degree of dispersion of data tell us?
Answer
Correct Answer:
Measures of variation
Note: This Question is unanswered, help us to find answer for this one
What is the mode?
Answer
Correct Answer:
Most frequent value
Note: This Question is unanswered, help us to find answer for this one
What is the value of the median?
Answer
Correct Answer:
Middle data point
Note: This Question is unanswered, help us to find answer for this one
What is population?
Answer
Correct Answer:
A set of all possible observation
Note: This Question is unanswered, help us to find answer for this one
Which of the following is NOT a characteristic of a histogram?
Answer
Correct Answer:
Frequency on horizontal axis and measurements on vertical axis
Note: This Question is unanswered, help us to find answer for this one
What is the systematic collection of data illustrating the frequency at which a value occurs called?
Answer
Correct Answer:
Frequency distribution
Note: This Question is unanswered, help us to find answer for this one
What is the main purpose of descriptive statistics?
Answer
Correct Answer:
To describe important features of data
Note: This Question is unanswered, help us to find answer for this one
What is the science of decision making called?
Answer
Correct Answer:
Statistics
Note: This Question is unanswered, help us to find answer for this one
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
Note: This Question is unanswered, help us to find answer for this one
What is the Centre of Gravity?
Answer
Correct Answer:
The point at which the force of gravity acts on a body
Note: This Question is unanswered, help us to find answer for this one
What is the ratio of velocity of driven pulley to the velocity of driving/driver pulley?
Answer
Correct Answer:
Velocity Ratio
Note: This Question is unanswered, help us to find answer for this one
What is the angle of V-belt?
Note: This Question is unanswered, help us to find answer for this one
From which material are flat belts made?
Answer
Correct Answer:
Leather, cotton, rubber
Note: This Question is unanswered, help us to find answer for this one
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
Note: This Question is unanswered, help us to find answer for this one
What is the angle of friction?
Answer
Correct Answer:
The angle between the normal reaction and the resultant of frictional force.
Note: This Question is unanswered, help us to find answer for this one
What does the coefficient of friction tell us?
Answer
Correct Answer:
The ratio of frictional force to the normal reaction between the contact surface.
Note: This Question is unanswered, help us to find answer for this one
What is the name of the frictional force that is encountered when the motion is just beginning?
Answer
Correct Answer:
Limiting friction
Note: This Question is unanswered, help us to find answer for this one
What is the name of the friction experienced by the body when it is in motion?
Answer
Correct Answer:
Dynamic/kinematic friction
Note: This Question is unanswered, help us to find answer for this one
What is Frictional Force?
Answer
Correct Answer:
It is the force distribution at the surface of contact and tangential to the surface of contact.
Note: This Question is unanswered, help us to find answer for this one
What is a strut?
Answer
Correct Answer:
A member under compression
Note: This Question is unanswered, help us to find answer for this one
What is a "Tie A member"?
Answer
Correct Answer:
A member under tension
Note: This Question is unanswered, help us to find answer for this one
What does uniformly distributed load mean?
Answer
Correct Answer:
The load is evenly distributed over the entire length of the beam.
Note: This Question is unanswered, help us to find answer for this one
What is a continuous beam?
Answer
Correct Answer:
A beam provided with more than two supports.
Note: This Question is unanswered, help us to find answer for this one
What is an overhanging beam?
Answer
Correct Answer:
A beam having one or both ends extended over the support.
Note: This Question is unanswered, help us to find answer for this one
What is the definition of Span?
Answer
Correct Answer:
The horizontal distance between the support
Note: This Question is unanswered, help us to find answer for this one
Freely supported beam implies that the supports exert forces with no moment on the beam. True or false?
Note: This Question is unanswered, help us to find answer for this one
What is a simply supported beam?
Answer
Correct Answer:
A beam made to freely rest on supports which may be knife edges or rollers.
Note: This Question is unanswered, help us to find answer for this one
What is a fixed beam?
Answer
Correct Answer:
A beam having both ends fixed.
Note: This Question is unanswered, help us to find answer for this one
What is Cantilever beam?
Answer
Correct Answer:
A beam having its one end fixed and other end free to deflect.
Note: This Question is unanswered, help us to find answer for this one
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.
Note: This Question is unanswered, help us to find answer for this one
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
Note: This Question is unanswered, help us to find answer for this one
What does it mean when a body is in equilibrium?
Answer
Correct Answer:
The body is at rest or continues to be in steady linear motion.
Note: This Question is unanswered, help us to find answer for this one
What is the resultant of a force system?
Answer
Correct Answer:
The process of finding the composition of forces
Note: This Question is unanswered, help us to find answer for this one
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.
Note: This Question is unanswered, help us to find answer for this one
In a concurrent force system, the line of action of all forces in the system pass through a ________.
Answer
Correct Answer:
Single point
Note: This Question is unanswered, help us to find answer for this one
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
Note: This Question is unanswered, help us to find answer for this one
What is a coplanar force system?
Answer
Correct Answer:
A system of forces acting on a body and all lie in the same plane
Note: This Question is unanswered, help us to find answer for this one
In aCollinear Force system, the line of action of all forces act along _____.
Answer
Correct Answer:
The same line
Note: This Question is unanswered, help us to find answer for this one
What are vector quantities?
Answer
Correct Answer:
Quantities which are determined by magnitude as well as direction.
Note: This Question is unanswered, help us to find answer for this one
Scalar quantities are determined by what?
Answer
Correct Answer:
Magnitude
Note: This Question is unanswered, help us to find answer for this one
Kinematics is a branch of ___________.
Note: This Question is unanswered, help us to find answer for this one
What is the study of motion without reference to the forces that cause it called?
Answer
Correct Answer:
Kinematics
Note: This Question is unanswered, help us to find answer for this one
What is kinetics?
Answer
Correct Answer:
The study of motion
Note: This Question is unanswered, help us to find answer for this one
What is the study of motion of objects due to the action of forces called?
Note: This Question is unanswered, help us to find answer for this one
What is the branch of mechanics which deals with force and its effects while acting upon the body in motion?
Note: This Question is unanswered, help us to find answer for this one
What is the branch of mechanics which deals with force and its effects while acting upon the body at rest?
Note: This Question is unanswered, help us to find answer for this one
According to Newton's Third Law of Motion, for every action there is what?
Answer
Correct Answer:
Equal and opposite reaction.
Note: This Question is unanswered, help us to find answer for this one
Full form of NASA
Answer
Correct Answer:
National Aeronautics and Space Administration
Note: This Question is unanswered, help us to find answer for this one