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Title: Ecor 1010 Exam questions
Description: Some question will come for sure. i can ensure you, there is 120 questions.

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1
...

b) Results relating to an objective
...

d) Difficulties encountered
...


2
...

b) Accuracy
...

d) Clarity
...


3
...

b) Magnitude of a measurement and physical dimension
...

e) Nothing changes
...


Which of the following names do not match it’s corresponding letter?
a) K, Kelvin
b) Pa, Pascal
c) F, Farad
d) V, Volt
e) S, Second

5
...
398 + 1
...
99 ?
a) 48
...
01
c) 47
...
5 x 102
e) None of the above
...


Identify the incorrect statement:
a) A set of precise measurements may contain significant error
...

c) The significant digits of a number give a measure of the precision of the number
...

e) All digits to the right of a decimal point are significant in scientific notation
...


Several numbers have been rounded
...
7862 1
...
989 37

c) 2
...
8
d) 3
...
6
e) 19
...


How is 25
...
8 m/s written in relative form?
a) 25
...
8 m/s
...
8 (1 ± 3
...

c) (25
...
8) m/s
...
8 ± 125 %) m/s
...


9
...

b) Measured value – True value
...


10
...
Which of the following is not an advantage of graphical communication?
a)
b)
c)
d)
e)

Concise
Clear
Increase of ambiguity
Efficient
All of the following are advantages of graphical communication
...
Which of the following is not a type of a pictorial drawing?
a)
b)
c)
d)
e)

Diagonal
Perspective
Axonometric
Oblique
All of the above are types of pictorial drawings
...
Identify the incorrect statement:
a)
b)
c)
d)

One point perspective: The projection plane is parallel to two principal axis
...

Three point perspective: No projection plane is parallel to any principal axis
...


e) Orthographic projection: 2D representation of a 3D object
...
Which of the following is true about the different types of views and projections:
a)
b)
c)
d)
e)

The view that contains the least hidden lines is chosen as the front view
...

Third angle projection is where the top view is drawn below the front view
...

All of the above are not true
...
All of the following are types of views drawn in an orthographic drawing except:
a)
b)
c)
d)
e)

Front
Side
Top
Corner
All of the above are type of views drawn in an orthographic drawing
...
Identify the incorrect precedence of lines:
a)
b)
c)
d)
e)

Visible lines take precedence over centre lines
...

Center lines takes precedence over hidden lines
...

None of the above is true
...
Pick the incorrect statement:
a)
b)
c)
d)
e)

Two-view exists in orthographic drawings
...

Always dimension from hidden lines and never visible lines
...

All of the above are incorrect statements
...
From the set of dimensioning rules, which of the following is correct:
a)
b)
c)
d)
e)

Dimension the least descriptive view
...

Extension lines may cross other lines if necessary
...

When measuring cylinder, always measure radii and never the diameter
...
One of the following is not a type of a line in orthographic drawings:
a)
b)
c)
d)
e)

Phantom lines
...

Center lines
...

All of the above are types of lines in orthographic drawings
...
Which of the following does not define a nomography?
a)
b)
c)
d)
e)

A graphical computer consisting of arrangements of calibrated scales and lines
...

Used where tight numerical tolerances are not required
...

A two-dimensional diagram designed to allow the approximate graphical computation of a function
...
Which of the following is not part of an engineering graphic?
a)
b)
c)
d)
e)

Nomography
Empirical equations
CAD
Descriptive geometry
All of the above are parts of engineering graphics
...
Which of the following not an advantage of CAD ( Computer Aided Drafting):
a)
b)
c)
d)
e)

Increase accuracy
...

Better presentation
...


23
...

b) A computer based system used to design a product, devise the production steps, and electronically transfer
the data to control the manufacturing equipment
...

d) A computer based system that coordinates and operates all stages of manufacturing from design to finished
product
...


24
...

Examples include Pro/ENGINEER
Models can be virtually manipulated
...

Represents an existing physical object
...
Which of the following best defines the difference between drawing and sketching?
a)
b)
c)
d)
e)

Drawing is when you draw subjects in detail while sketching is a rough outline of a drawing
...

Drawing is detailed while sketching is quick outlined
...

None of the above defines the difference correctly
...
A final report is formatted in a clear way
...

Appendix
...

Method
All of the above are parts of a final report
...
What is the difference between a code and a standard?
a)
b)
c)
d)
e)

A code is a set of specifications for the analysis of things, while a standard is a set of specifications for parts
...

A code is simple, while a standard is complex
...

None of the above define the difference correctly
...
Arrange the following method of design in the correct order:
1
...

3
...

5
...

The design loop
...

Definition of the design problem
...

2,3,4,5,1
1,2,3,4,5
5,3,4,1,2
1,4,5,2,3
1,5,4,2,3

29
...

Creative process
...

Always involves a team effort
...


30
...

Psychologists
...

Social Scientists
...


31
...

Early 1980s
...
Which of the following is not made using the software Pro/E?
a)
b)
c)
d)
e)

Piping layout
...

Numerical control machining
...

All of the above are made using the software
...
Choose the best answer:
a) Pro/E enables the user to create fully detailed standard engineering working drawings almost automatically
after model generation
...

c) Pro/E enables the user to create fully brief standard engineering working drawings almost after model
generation
...

e) Part (a) and Part (d) are true
...
Which of the following definitions is not true:
a)
b)
c)
d)
e)

Protrusion: Used to add material
...

Cut: Used to remove material
...

All of the above is true
...
Which of the following tabs do not exist in Pro/E:
a)
b)
c)
d)
e)

Coord Sys
...

Refit
...

Layers
...
Which of the following is a benefit of RP (Rapid Prototyping)?
a)
b)
c)
d)
e)

Can examine more concepts, check design changes
...

Costs increase
...

None of the above is a benefit of RP
...
What does SRP stand for?
a)
b)
c)
d)
e)

Standard Rapid Prototyping
...

Safe Rapid Prototyping
...

None of the above denotes that
...
Arrange the following in correct order:

1
...
Convert the CAD model to STL format
3
...
Slice the STL file into thin cross-sectional layers
5
...

a) 1,2,3,4,5
...

c) 1,4,5,3,2
...

e) 1,2,3,5,4
...
All of the following is a prototyping machine except:
a)
b)
c)
d)
e)

Fused Deposition Modeling
...

Selective laser sintering
...

All of the above
...
All of the following define the following prototyping machines correctly except:
a) Stereolithography: Uses a light sensitive liquid polymer
...

c) Fused Deposition Modeling: Uses ultraviolet light to harden photosensitive polymers
...

e) All of the above are correct
...
Which of the following defines the different types of histograms incorrectly?
a)
b)
c)
d)
e)

Left skewed: Slopes upwards starting from the right
...

Bimodal : Contains two peaks
...

Part (a) & (d) are incorrect
...
A sample consists of five observations: {1,2,3,4,5}
...
5
d)
3
...
24

43
...
4, 9
...
9, 9
...
0, 10
...
2, 10
...
The mean and standard deviation of the 8
numbers are 10
...
3 respectively, what percent of the 8 numbers are within 1 standard deviation from the
mean?
a) 75 %
b) 60 %
c) 55 %
d) 90 %
e) 85 %

44
...

A measure of variability
...

Shows how tightly data are around the mean
...


45
...
08 % of the data?
a) 1
...
34
c) 2
...
24
e) None of the above
...
Given 20 resistors
...
5 ohms and the standard
deviation is 0
...
5 ± t20,90* 0
...
5 ± z90* 0
...
5 ± t19,90* 0
...
5 ± 1
...
95
e) None of the above
...
For a sample of size 20 taken from a normally distributed population with standard deviation equal to 5, a 90%
confidence interval for the population mean would require the use of:
a) t=1
...
729
c) t=1
...
12
e) 1
...
Under which of the following circumstances is it impossible to construct a confidence interval for the
population mean?
a) A non-normal population with a large sample and an unknown population variance
...

c) A normal population with a small sample and an unknown population variance
...

e) All of the above are possible
...
A survey of 100 retailers revealed that the mean after-tax profit was $80,000
...

$75,080 to $86,250
...

$76,390 to $86,450
...
Which of the following is false?
a) The t distribution is symmetric about zero
...

c) As the degrees of freedom get smaller, the t-distribution’s dispersion gets smaller
...

e) None of the above
...
For s symmetric distribution, the mean and median are:
a) The same
...

c) Possibly the same, possible different
...

e) None of the above is true
...
If the mean, median and mode of a distribution are 5,6,7 respectively, then the distribution is:
a) Skewed positively
...

c) Bimodal
...

e) None of the above
...
If a sample n= 16, mean is 10
...
6
...
0, 11
...
6, 11
...
4, 11
...
3, 11
...
5,11
...
What sample n would give a standard deviation of 14 and a standard error of 2:
a) n= 50
b) n= 28
c) n= 49
d) n= 7
e) n= 56
55
...
56 % of the data if n>40:

a)
b)
c)
d)
e)

2
...
25
2
...
24
None of the above
...
Which of the following is correct?
a)
b)
c)
d)
e)

TSS = SSR + SSE
SSR = TSS + SSE
SSE = TSS + SSR
SSE = TSS * SSR
SSR = TSS / SSE

57
...
Find the coefficient of determination if the correlation coefficient = 0
...
8
-0
...
41
-0
...


58
...

LCC (Linear Correlation Coefficient)
...

TSS (Total Sum of Squares)
...


59
...

The difference between the actual Y values and the predicted Y values
...

The square root of the slope
...


60
...
30?
a) There is no correlation
...

c) The variance of X is negative
...

e) None of the above is true
...
For any regression calculation:
a) There are several confidence intervals
...

There is no confidence interval
...

None of the above is true
...
The fraction of the variation in the values of y that is explained by the least squares regression of y on x is:
a)
b)
c)
d)
e)

The slope of the least square regression line
...

The intercept of the least square regression line
...

None of the above is true
...
Which of the following is incorrect:
a)
b)
c)
d)
e)

In linear regression the line of best fit maximises the distance between the scores and the regression line
...

In linear regression a real line is drawn through the data points where total error is minimized
...

All of the above is true
...
If a graph is plotted, what is the slope if given that when x= 66, y= 200 and the intercept of the graph is 167?
a)
b)
c)
d)
e)

0
...
5
0
...
11
-0
...
Find the coefficient of determination if the total variation is 120, and the unexplained variation is 40:
a)
b)
c)
d)
e)

0
...
67
0
...
3
0
...
If A=[2,4,6;1,3,5;8,9,0]
What is A(2:3,2:3)
a) 3 5
9 0
b) 2 4
1 3
c) 1 3
5 8

d) 0 9
8 5
e) Error
...
Which of the following is an incorrect logical operator:
a)
b)
c)
d)
e)

<= ( Less then or equal)
== ( Equal to)
=~ ( Not equal to)
| ( Or)
All of the above are correct logical operators
...
What is the purpose of the semicolon in syntaxes?
a)
b)
c)
d)
e)

Does not echo what you write
...

Sets a condition
...

Has no function
...
If A=[8,10,12] what is norm(A):
a)
b)
c)
d)
e)

2

77
77

20
12 77
None of the above
...
a = 2;
b = a^2;
while b< 2000
a = a + 2;
b = a^2;
end
a = a - 2;
disp(a)
What is the output?
a) 40
b) 38
c) 44
d) 41
e) 36

71
...
5000 1
...
5000 2
...
0000 0
...
5000 2
...
0000 1
...
5000 2
...
5000 0
...
5000 3
...


72
...

Doubles
...

Strings
...


73
...


A = [6 3 9];
n = 3;
if n ~= 0
A = A/n;
end
A

What is the ouput?
a) 2 1 3
b) 3 1 2
c) 2 1 4
d) 4 1 6
e) 6 3 9

75
...
a=[1,2:3,4;7,9];
b=[4,5;6,7];
c=(a-b)';
d=c^2

a) 4
6

What is the ouput?
5
7

b) 1 2
4 3
c) 8
6

4
2

d) 4 1
2 3
e) Error
...
Which of the following are not functions in MATLAB:
a)
b)
c)
d)
e)

Else loop
...

elseif loop
...

All of the above are functions
...
A=[2,4,6,9;1,0,7,8]
What is G(2,2)
a) 18
b) 20
c) 14
d) 16
e) 12

79
...
b=1
count=0
while b<10
if rem(b,2) ~=0 & mod(b,3) ~=0
count=count+1
else
count=count-1
end
b=b+1
end
disp(count)
What is the output?
a) 0
b) -1
c) -3
d) -4
e) 1

81
...

switches between text and math mode
...

+< = > executes an inline expression and displays the result inline
...


82
...


...


83
...

Matrix manipulations
...

Differential calculus
...


84
...

b) Assign equations and values to a variable
...


d) Perform recursive assignments
...


85
...
Which of the following notations solves
the 3 equations simultaneously for x,y and z?
a) Solve{(equation1, equation2, equation3),(x,y,z)}
b) Solve({equation1, equation2, equation3),(x,y,z)}
c) Solve[(equation1, equation2, equation3),(x,y,z)]
d) Solve({equation1, equation2, equation3},[x,y,z])
e) None of the above
...
What is LCA (Life Cycle Analysis)?
a)
b)
c)
d)
e)

Compiling an inventory of relevant energy and material inputs and environmental releases
...

Used to improve processes
...

All of the above is true
...
At what year was Canada’s GDP, Energy consumption and CO2 emissions approximately the same?
a)
b)
c)
d)
e)

1870
1973
1950
1966
1990

88
...

a)
b)
c)
d)
e)

Nuclear, gas, oil, coal
...

Gas, nuclear, oil, coal
...

Nuclear, coal, gas, oil
...
What is expected to happen to oil and gas consumption in the next 50 years?
a)
b)
c)
d)
e)

Decrease then increase
...

Decrease
...

No change
...
Which of the following is incorrect:
a) CHGs result mainly from human burning of fossil fuels
...

c) The greenhouse effect is when absorbed energy is re-emitted as thermal radiation, partially blocked by
carbon dioxide
...
5 °C to 6 °C
...


91
...

Responsible for public safety
...

Enforces standards of competence
...


92
...

Promote professionalism and excellence
...

Provide direction to staff and students around expected conduct
...


93
...
All of the following are requirements for
obtaining a license except:
a) Pass the professional practice exam
...

c) Graduate with a degree from an accredited program
...

e) All of the above are true
...
Identify the correct statement:
a)
b)
c)
d)
e)

To receive a certificate of authorization, an individual must have four years of licensed practice
...

Always work within your competence
...

P
...
O is a title assigned to all professional engineers
...
Which of the following names are not defined correctly:
a)
b)
c)
d)
e)

OSPE (Ontario society of professional engineers)
SMP (Society membership program)
...

PEO (Professional engineers Ontario)
...


96
...

b) Bypass any safety device in order to fix a problem
...

d) Do not operate equipments that endanger the safety of any worker
...


97
...

A reason for failure and disasters in engineering is wrong decisions taken
...

Ensure OHSA provisions are followed is a duty of the employer
...


98
...

Failure to recognize deteriorating safety situations
...

Failure to define responsibilities clearly
...


99
...

a)
b)
c)
d)
e)

101
...

a)
b)
c)
d)

Hazardous equipment
...

Hazardous substances
...

None of the above is true
...

Certificate of authorization
...

Bachelor degree
...


All of the following are types of questions an engineer would have to think of except:
Is being manufactured sustainably enough?
All energy should be spend on producing products that serve needs rather than wants?
Should we push for sustainable features in products?
Is the economy willing to sacrifice?
All of the above are questions an engineer needs to think of
...

a)
b)
c)
d)
e)

104
...

a)
b)
c)
d)
e)

106
...

a)
b)
c)
d)
e)

108
...

Attack waste
...

Good transportation
...

What is CPR?
Control pastures resources
...

Common pool resources
...

None of the above
...

The individual incremental benefit < individual incremental hardship
...

The group incremental benefit = the group incremental hardship
...

Which of the following is not a negative externality?
Polluting by using coal since it is cheap, while other countries try to reduce it since it may lead to global
warming
...

Depleting some resources for a company for your own use
...

All of the above is a negative externality
...

A dilemma arising from a situation where people deplete resources for their own self-interest
...

Negligence of the well-being of the society due to personal gain preference
...


On average, from the early 1900’s till later 1900’s, what happened to the difference in temperature
under climate change?
a) Increase
...

c) Increase then decrease
...


e) Stay the same
...

a)
b)
c)
d)
e)

110
...

a)
b)
c)
d)
e)

All of the following define the greenhouse effect correctly except:
Incoming solar radiation is radiated out to space
...

Ultra-violet radiation from the surface
...

All of the above is correct
...

Energy/GDP
...

Wealth per capita
...

On average, what would happen to energy intensity in the next century?
Increase
...

Decrease
...

Stay the same
...


If a sustained decline in Carbon intensity by 2
...
5 %
...
5 %
...
5 %
...
5 %
...


113
...

a)
b)
c)
d)
e)

115
...

Carbon dioxide
...

Water vapour
...

What is the largest reservoir of carbon?
Ocean
...

Atmosphere
...

None of the above
...

a)
b)
c)
d)
e)

117
...

a)
b)
c)
d)
e)

119
...

a)
b)
c)
d)
e)

Cutting down the rain forests
...

Mining fossil fuels
...

All of the above
...

1/4energy
...

1/6 energy
1/3 energy
...
5 – 22
...

Diode
...

Transistor
...

Which of the following is a major method of waste management?
Recycling
...

Landfill
...

All of the above are methods of waste management
Title: Ecor 1010 Exam questions
Description: Some question will come for sure. i can ensure you, there is 120 questions.