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Engineering Principles

Total questions: 40

Worksheet time: 3hrs 20mins

Name
Class
Date
1.

austenite has maximum solubility in what percent of carbon

a)

2.14

b)

4.15

c)

6.27

d)

3.65

2.

Below are material removal processes except for

a)

Turning

b)

Forging

c)

Drilling

d)

Milling

3.

Quenching is ...

a)

heating the steel alloy to a sufficiently high temperature to soften it, and remove internal stresses

b)

heating the steel alloy to a high temperature and rapidly cooing it, which hardens it but also makes it brittle

c)

moderately heating the finished steel alloy to remove some of the internal stresses and make it softer and less brittle

d)

storing the steel alloy at room temperature for a long period of time to cure it

4.

Property‑enhancing processes are performed to improve mechanical or physical properties of work material

a)

True

b)

False

5.

What is a Composite Material

a)

A material made from only one base constituent

b)

An organic material

c)

A material made from only two or more base constituents

d)

A material that can be recycled

6.

What is the straight line equation?

a)

ax2 + bx + c = 0ax^2\ +\ bx\ +\ c\ =\ 0

b)

Y = mx + cY\ =\ mx\ +\ c

7.

The phase mixture of Ferrite and Cementite is …...

a)

cementite

b)

pearlite

c)

ferrite

d)

austenite

8.

Steel is ...

a)

a man made mixture of iron with small amounts of other elements added called an alloy

b)

a natural ore including iron and other elements found in the earths crust

c)

a modern material developed after the industrial revolution

d)

an alloy which can be found in the earths crust

9.

What type of projection is shown on the right?

a)

Sketch

b)

Isometric

c)

Orthographic

d)

Oblique

10.

Tempering is ...

a)

heating the steel alloy to a sufficiently high temperature to soften it, and remove built in stresses

b)

heating the steel alloy to a high temperature and rapidly cooling it, which hardens it but also makes it brittle

c)

moderately heating the finished steel alloy to remove some of the internal stresses and make it softer and less brittle

d)

storing the steel alloy at room temperature for a long period of time in order to cure it

11.

Martensite is

a)

Soft

b)

Ductile

c)

Annealed

d)

Hard

12.
What is the name of the item pictured to the right that is commonly found on a drawing sheet?
a)
Specification Sheet
b)
Title Block
c)
Histogram
d)
Parts List
13.

6. Which of the following represents a centre-line?

a)

A

b)

B

c)

C

d)

D

14.

What happens when thermosetting polymers are heated?

a)

They become soft

b)

They are deformed

c)

They become rigid

d)

All of the above

15.

What does the British standard BS 8888 cover?

a)

Engineering drawings and technical product documentation

b)

Electrical installation

c)

Graphical symbols and flow charts

d)

Welding and fabrication symbols

16.

Title blocks are necessary. Why? (2 Answers)

a)

To provide a place to put your username when creating the drawing sheet.

b)

To identify the general details that go along with a particular part.

c)

To identify the drawing.

d)

To have a consistent method of documenting the revision before being manufactured.

17.

Which of these is the correct BS symbol for First Angle Projection?

a)
b)
c)
d)
18.

In a title block, this abbreviation documents how many times the drawing has been changed.

a)

MFG

b)

QA

c)

DWG NO

d)

REV

19.

What does ISO stand for when looking at conventional drawings?

a)

Institute for Standards

b)

International Science Organisation

c)

International Standards Organisation

d)

Independent Standards Organisation

20.

Stress strain curve is shown below. Beyond point B, metal undergoes

a)

less elastic deformation and more plastic deformation

b)

only elastic deformation

c)

more elastic deformation and less plastic deformation

d)

only plastic deformation

21.

Find the length of side y.

a)

22.32 cm

b)

36.5 cm

c)

76.34 cm

d)

87.76 cm

22.

What angle(s) do you use to draw an Isometric drawing?

a)

30/30 degrees

b)

45 degrees

c)

90 degrees

d)

45/45 degrees

23.

units for work are

a)

newtons

b)

joules

c)

meters

d)

seconds

24.

What is meant by the work hardening process?

a)

Ductile materials are deformed plastically at temperatures below crystalline temperatures which increases strength and hardness of the material

b)

Ductile materials are deformed plastically at temperatures above crystalline temperatures which increases strength and hardness of the material

c)

Ductile materials are deformed plastically at crystalline temperatures which increases strength and hardness of the material

d)

None of the above

25.

Which one of the following is true of cold drawn low

carbon steel as compared with hot drawn?

a)

A

b)

B

c)

C

d)

D

26.
a)

7cm

b)

8.3cm

c)

6.9cm

d)

6.2cm

27.

Which equation relates force, acceleration and mass?
Tick all that are correct (2 Answers)

a)

F=ma

b)

 F=maF=\frac{m}{a}  

c)

 a=Fma=\frac{F}{m}  

d)

a=Fm

28.

Two factors that determine work are (2 Answers)

a)

force

b)

acceleration

c)

mass

d)

distance

e)

velocity

29.

units of force are

a)

newtons

b)

grams

c)

joules

d)

meters

30.

What term defines the moment of force applied when using a tap wrench

a)

Torque

b)

Threading

c)

Tapping

d)

Couple

31.

Which testing method is used to determine the toughness of a material

a)

Tensile

b)

Indentation

c)

Charpy notch

d)

Fatigue

32.

if you push a cart with a force of 60 N for 2 m... how much work have you done

a)

120 J

b)

30 J

c)

120 N

d)

30 N

33.

The table shows the thermal conductivity of four common metal alloys. Which one would be the most suitable for manufacturing a heat shield?

a)

A

b)

B

c)

C

d)

D

34.

A quality product is best described as

a)

Expensive

b)

Fit for purpose

c)

A well known brand

d)

Has a 3 year warranty

35.
Find the measure of the missing angle.
a)
49o
b)
50o
c)
41o
d)
33o
36.

A steel block sitting on a steel plate requires 20 N to move it across the plate. If the normal force between the block and the plate is 95 N, calculate the coefficient of friction ( μ\mu )

 Formula: μ = frictional force (f)normal force (n)Formula:\ \mu\ =\ \frac{frictional\ force\ \left(f\right)}{normal\ force\ \left(n\right)}  

a)

4.75

b)

0.211

c)

1900

d)

0.47

37.

What process enhances the corrosion resistance of aluminium by thickening its oxide layer

a)

Phosphating

b)

Tin Plating

c)

Galvanising

d)

Anodising

38.

Which type of test uses a hardened 10mm diameter steel ball?

a)

Hardness

b)

Impact Test

c)

Tensile Test

d)

Fatigue Test

39.

Which heat treatment process produces steel in its most malleable condition

a)

Annealing

b)

Hardening

c)

Normalising

d)

Tempering

40.

Referring to the table shown, what thread size would we get when an 8.50 drill is used

a)

10.0

b)

8.0

c)

6.80

d)

15.50

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