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Level 3 Unit 305 Scientific principles Mock 3

Total questions: 41

Worksheet time: 21mins

Name
Class
Date
1.

Newton's Third Law defines a force as anything that causes an object to accelerate. What is the equation to use to find force?

a)

F= m/s

b)

F= ma

c)

F= N/m2

d)

F= m/s/s

2.

A structurally sound building MUST have an acceleration, and therefore, a net force of...

a)

Zero N

b)

One N

c)

Two N

d)

Three N

3.

When the force between two opposing structural elements are the same, they effectively cancel each other out. What is this known as?

a)

Zero gravity

b)

Subsidence

c)

Equilibrium

d)

Acceleration

4.

Work done=

a)

Force x Time

b)

Force x Weight

c)

Force x Efficiency

d)

Force x Distance

5.

How many Joules would it take to move a 120 N weight a distance of 40 M?

a)

3800j

b)

4800j

c)

3

d)

4500j

6.

An appliance has an input of 19KW and an output of 15 KW. How efficient is this appliance?

a)

78.9%

b)

126%

c)

75%

d)

15.7%

7.

Increasing the length of a pipe run would increase the resistance to the flow of water.  

a)

True

b)

False

8.

According to Ohm's Law, R=

a)

V/R

b)

VxI

c)

VxR

d)

V/I

9.

A 330W appliance on a building site would require what sized fuse?

a)

3A

b)

5A

c)

9A

d)

13A

10.

Foundations, walls, beams and columns are collectively known as...

a)

Superstructure

b)

Substructure

c)

Structural members

d)

Building envelope

11.

The transfer of heat from molecule to molecule through a solid substance is known as what?

a)

Conduction

b)

Convection

c)

Readiation

d)

Evaporation

12.

Heat transfer due to a change in density of a fluid substance is known as what?

a)

Conduction

b)

Convection

c)

Radiation

d)

Evaporation

13.

If a material had a coefficient linear expansion of 0.4 and had a change of temperature from 10-30 Degrees Celsius over a 11 M run, how much would it expand in mm?

a)

78 mm

b)

88 mm

c)

98 mm

d)

108 mm

14.

The scientific principle that light can be bent when it passes through a translucent medium such as glass or water is know as what?

a)

Reflection

b)

Mirage

c)

Refraction

d)

Mirroring

15.

What is the term applied to light as it bounces off internal surfaces of our built environment?

a)

Reflection

b)

Mirage

c)

Refraction

d)

Mirroring

16.

Which Building Regulation controls acceptable levels of noise during construction?

a)

Part B

b)

Part C

c)

Part D

d)

Part E

17.

At what noise level does sound have the potential to damage peoples hearing?

a)

60 db

b)

70 db

c)

80 db

d)

90 db

18.

A building's total heat loss can be assessed by calculating the...

a)

R Value

b)

K Value

c)

U Value

d)

L Value

19.

Extract ventilation and widening cavity walls to 150mm are ways to reduce what?

a)

Condensation

b)

Evaporation

c)

Precipitation

d)

Sublimation

20.
Which gas is commonly used in domestic properties for boiler and cooker fuel.
a)
Propane
b)
Butane
c)
Natural
d)
Acetylene
21.
Which gas is considered as too hot for soldering?
a)
Oxygen
b)
Butane
c)
Propane
d)
Natural
22.
Which is the correct gas to use for soldering?
a)
Oxygen
b)
Butane Gas
c)
Propane Gas
d)
Natural Gas
23.
Which gas has the highest flame temperature?
a)
Natural Gas
b)
Propane
c)
Butane
d)
Oxygen
24.
Due to its high calorific value this gas is used for barbeques?
a)
Natural Gas
b)
Air
c)
Propane
d)
Butane
25.
A combination of Heat, Oxygen and Fuel is called?
a)
Fire triangle
b)
Fire brigade
c)
Three triangle
d)
Fire circle
26.
Which three elements do you need to create fire?
a)
Fuel, oxygen, heat
b)
Fuel, water, heat 
c)
oxygen, water, heat
d)
oxygen, fuel, water
27.
In a domestic plumbing system, which is the best gas to use to heat water?
a)
Oxygen
b)
Butane Gas
c)
Propane Gas
d)
Natural Gas
28.
Which gas is used for soldering copper?
a)
Oxygen
b)
Propane
c)
Petrol
d)
Steam
29.
Which gas has the highest flame temperature?
a)
Natural
b)
Propane
c)
Butane
d)
They are all the same
30.
What does LPG stands for?
a)
Liquid Pure Gas
b)
Liquid Pour Gas
c)
Liquid Petroleum Gas
d)
Light Petroleum Gas
31.
How does convection take place? 
a)
In a solid
b)
In a fluid or Gas
c)
Directly form the sun 
d)
Along a metal
32.
How does conduction happen?
a)
When heat travels along or through a material
b)
when heat travels directly formt he sun to the earth
c)
When heat is transferred from one body to another without heating hte space inbetween
d)
When a liquid is heated and rises
33.
Which Building Regulations are connected to the conservation of fuel and power?
a)
Part A
b)
Part Z
c)
Part L
d)
Part 1
34.
Which material is a good thermal conductor?
a)
Plastic
b)
Copper
c)
Wood
d)
Water
35.
How many methods are there for transferring heat?
a)
1
b)
2
c)
3
d)
50
36.
Convection, Conduction and Radiation are all examples of?
a)
Heat Transfer
b)
Capillary action
c)
Boilers
d)
Adhesion
37.
What can be added to water to reduce the freezing point?
a)
Anti Freeze
b)
Oxygen
c)
Nitrogen
d)
Calcium Carbonate
38.
Another name for Anti Freeze is?
a)
Glycol
b)
Solvent Cement
c)
Solder
d)
Flux
39.
The only way to fully remove hard water, scale and tide marks is to fit the following ?
a)
A boiler
b)
A water softner
c)
A radiator
d)
Chemical inhibitor
40.
This blocks pipes and components and reduces the flow of water.
a)
Soft Water
b)
Chemical Inhibitor
c)
Lime Scale
d)
Flux
41.
What is the effect of corrosion on pipework?
a)
Increase the life of pipework
b)
Decrease the life of pipework
c)
Nothing effects the life of pipe work
d)
All of the above

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