GMJ 9189 Phase 2 Scientific MCQ

What charge does a proton carry?

• Positive charge

• Negative charge

• Alternating positive to negative charge

• Neutral charge

When a liquid changes state into a gas, it is known as…

• Evaporation

• Condensing

• Sublimination

• Expansion

When a gas changes state into a liquid, it is known as…

• Evaporation

• Condensing

• Sublimination

• Expansion

To determine the current within a circuit, which calculation is used?

• Watts/Volts

• Watts/Ohms

• Volts/Watts

• Ohms/Volts

What does the symbol ∆t represent?

• Difference in temperature

• Direct temperature

• Difference in pressure

• Direct pressure

What is the SI unit for force?

• Pascal

• Newton

• Joule

• Bar

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

How can pressure be defined?

• Force divided by area

• Area divided by force

• Force multiplied by area

• Volume multiplied by force

What is the specific heat capacity for water under atmospheric conditions?

• 1kj/kg/⁰C

• 3.14kj/kg/⁰C

• 4.18kj/kg/⁰C

• 9.18kj/kg/⁰C

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