Worksheets303 Scientific Principles Quiz
Total questions: 20
Worksheet time: 10mins
What temperature is 373K in the Celsius scale?
173°C
100°C
-173°C
-200°C
What does the symbol Δt represent?
Difference in temperature
Direct temperature
Difference in pressure
Direct pressure
When a gas changes state into a liquid, it is known as…
Evaporation
Condensing
Sublimination
Expansion
When a liquid changes state into a gas, it is known as…
Evaporation
Condensing
Sublimination
Expansion
What is atmospheric pressure at sea level?
0 bar
1.01 bar
10.1 bar
100 bar
At what temperature would water boil if subjected to 3 bar of pressure?
100°C
110°C
123°C
143°C
What term does the following sentence describe? The energy used to change the state of a substance which is released during evaporation.
Sensible heat
Total heat
Latent heat
Specific heat
Which of the following equations describes a Joule?
1kJ/s
1W/s
1Nm
1W/m
What is the specific heat capacity for water under atmospheric conditions?
1kj/kg/°C
3.14kj/kg/°C
4.18kj/kg/°C
9.18kj/kg/°C
Select the correct equation to calculate the linear expansion within a 10m length of copper pipe if it was heated by 30°C.
3.14 x 10 x 30
10 x 30 x 0.000016
30 / 10 x (0.000011)
4.18 x 30 x 10
Which of the following materials expands the most?
Copper
Steel
Brass
PVC plastic
What is the correct calculation to determine the volume of a cylinder?
3.14 x radius² x height
3.14 x diameter x height
Diameter / height x (3.14)²
3.14 x diameter²
An electrical immersion heater is required to provide 36,000kJ of heat energy to heat a cylinder. What is the power of the immersion heater if it raises the temperature of the water to its design temperature within one hour?
10 watts
10Kw
100 watts
100kW
What is the SI unit for force?
Pascal
Newton
Joule
Bar
How can pressure be defined?
Force divided by area
Area divided by force
Force multiplied by area
Volume multiplied by force
A system of pipework has a static head of 11.6m. What is the pressure acting upon the lowest part of the system?
11.6 bar
11.6 pascals
116,000 pascals
10.6 bar
Which of the following examples of pipe installation would result in the best flow rate?
3m of 22mm pipework with five elbows
3m of 15mm pipework with five elbows
3m of 22mm pipework with five pulled bends
3m of 15mm pipework with five pulled bends
What charge does a proton carry?
Positive charge
Negative charge
Alternating positive to negative charge
Neutral charge
How is current correctly defined?
The number of electrons flowing per second
The number of neutrons flowing per second
The difference in electron concentration
The potential difference within a circuit
To determine the current within a circuit, which calculation is used?
Watts/Volts
Watts/Ohms
Volts/Watts
Ohms/Volts
