Phase 2 Multiple Choice Test B

At what temperature would water boil if subjected to 3 bar of pressure?

• 100ºC

• 110ºC

• 123ºC

• 143ºC

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/ºC

• 3.14kj/kg/ºC

• 4.18kj/kg/ºC

• 9.18kj/kg/ºC

Select the correct equation to calculate the linear expansion within a 10m length of copper pipe if it was heated by 30ºC.

• 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