Bills & Energy Basics | FinTrex

Question 1 of 10

What is the difference between kW and kWh?

kW is power; kWh is energy used over timeThey are identical unitskW is a currencykWh is a tax rate

Question 2 of 10

A 1 kW appliance runs for 3 hours. How much energy does it use before efficiency adjustments?

3 kWh3 kW per month0.33 kWh1 kWh

Question 3 of 10

Why can a standing charge matter in a household-energy comparison?

It adds a fixed daily cost in addition to usage chargesIt is already measured in kWhIt always falls when usage risesIt is the same as vehicle depreciation

Question 4 of 10

What should an EV charging calculation state clearly?

Energy consumption, distance, tariff and any charging-loss assumptionOnly battery colourOnly vehicle purchase priceA guaranteed public-charger price

Question 5 of 10

Why is heating efficiency important when comparing gas and electric heating?

Purchased energy can produce different amounts of useful heatAll heating systems are 100% efficientEfficiency changes the currencyIt removes standing charges

Question 6 of 10

What does a simple solar payback result represent?

Install cost divided by modeled annual net energy value under stated assumptionsA guaranteed investment returnA government approvalA fixed property-value increase

Question 7 of 10

What should a tariff-change model compare?

Old and new unit rates plus standing charges over the same usage assumptionsOnly the supplier nameOnly last month's weatherA stock-market index

Question 8 of 10

How should changing energy tariffs normally enter a calculator?

As user-entered values or a clearly source-dated benchmarkAs permanent hidden constants in many UI filesAs a guaranteed future rateAs an investment forecast

Question 9 of 10

Why test daily, monthly and yearly unit conversions?

Small conversion errors can multiply into materially wrong annual costsConversions never affect money resultsOnly monthly values are validAnnual values cannot be calculated

Question 10 of 10

If two tariffs are compared, what should remain the same unless intentionally tested?

The underlying usage assumptionsThe unit labelsThe mathematical definition of kWhNothing at all