WorksheetsUnit 202 Revision
Total questions: 34
Worksheet time: 9hrs 30mins
If the battery produced 12.6 Volts what would be the current flow for a 6 Ohm resistor?
2.1 Amps
2.4 Amps
1.71 Amps
15 Amps
What is the area of a rectangle measuring 3.67m x 3.24m correct to two decimal places?
11.89
11.8
11.9
12
Which of the following is a ferrous metal?
aluminium
copper
nickel
carbon steel
Which of the following materials has the highest density?
aluminum
titanium
magnesium
gold
Which metal is used for cutting tools, springs and great-strength wires?
High carbon steel
Low carbon steel
Copper
Iron
Which of the following has a direct correlation with the hardness of a metal?
density
carbon content of steel
atomic number
shape of metal
An alarm clock draws 0.5 A of current when connected to a 120 volt circuit. Calculate its resistance.
60Ω
120Ω
180Ω
240Ω
Which method uses a zinc coating on iron or steel to prevent rusting?
Galvanizing
Tinning
Electroplating
Alloying
Which of the following is a non-ferrous metal?
alloy steel
carbon steel
cast iron
copper
Which of the following is not a composite material
MDF
Carbon fibre
Arimid fibre
Structural concrete
Glass
Which of the following is not a type of metal?
Sheet metal
Stick metal
Strap metal
Pallet
How well a substance can be hammered into sheets.
Malleability
Conductivity
Luster
Magnetic
Which of the following reduces hardness of metal and increases ductility?
annealing
normalising
hardening
quenching
Which plastic manufacturing process involves forcing melted plastic through a shaped opening in a "die" to create a continuous piece which is then often cut to length.
Injection Molding
Extrusion
Blow Molding
3D Printing
When a metal can allow heat or electricity to flow through it, we say it is ___________.
lustrous
malleable
ductile
conductive
2.The SI unit for pressure, equal to 1 N/m2, is called the
a. atmosphere.
b. foot-pound.
c. pascal.
d. watt.
A storage tank has fluid depth of 4.5m, if the fluid has density 850 kg/m3. What is the pressure on the base of the tank?
37523.25Pa
3825Pa
35Pa
45Pa
The density of a material is 2560 kg/m3. What is the relative density?
256
2.56
25.6
0.256
In normalizing, cooling is done in which of the following medium?
Air
Water
Oil
Furnace
When manufacturing chemical pipelines, a property that is required for the material used is:
corrosion resistance
high density
flexibility
length
Material removal is done by which one of the following operations?
Welding
Forging
Casting
Machining
Round 1.059 to 1 decimal place
1.1
1.06
1.0
1.05
Round 1.059 to 2 decimal places
1.06
1.05
2.06
0.06
A kettle uses 100J of electrical energy to produce 7J of sound energy and 93J of thermal energy. How efficient is the kettle?
100%
7%
93%
95%
What is the force in Newton's generated by a mass of 45 kg?
441.45 N
4.41 N
4.59 N
45 N
What is the work done when a force of 500 N moves an object 5m?
25 Nm
525 Nm
2500Nm
10 Nm
A round aluminum bar has diameter 45mm. What is the cross-sectional area?
22.5 sq mm
141.3 sq mm
45 sq mm
1589.63 sq mm
A box has a length of 7 centimeters, a width of 5 centimeters, and a height of 8 centimeters. What is the volume of the box?
61 cubic centimeters
96 cubic centimeters
250 cubic centimeters
280 cubic centimeters
A cantilever beam supports a load 350N at distance 0.6 m from where the beam is secured to a vertical wall. What turning moment is created?
2.1 Nm
21 Nm
210 Nm
583.33 Nm
