Welcome to the **Kilowatt-Hours MDCAT** MCQs with Answers. In this post, we have shared **Kilowatt-Hours** Multiple Choice Questions and Answers for PMC MDCAT** 2024**. Each question in MDCAT Physics offers a chance to enhance your knowledge regarding **Kilowatt-Hours** MCQs in this MDCAT Online Test.

## Kilowatt-Hours MDCAT MCQs Test Preparations

1kilowatt-hour is equivalent to:

a) 1,000 watts

b) 1,000 joules

c) 1,000 watt-hours

d) 1,000 kilowatts

If a device uses 2 kilowatts of power for 3 hours, the total energy consumed is:

a) 6 kilowatt-hours

b) 5 kilowatt-hours

c) 8 kilowatt-hours

d) 3 kilowatt-hours

The energy consumption of an appliance rated at 5 kW over 4 hours is:

a) 20 kWh

b) 15 kWh

c) 25 kWh

d) 10 kWh

If an appliance consumes 10 kilowatt-hours per day, it uses how many kilowatt-hours in a week?

a) 70 kWh

b) 60 kWh

c) 50 kWh

d) 80 kWh

A refrigerator that consumes 0.5 kWh per hour will use how many kWh in 24 hours?

a) 12 kWh

b) 24 kWh

c) 10 kWh

d) 8 kWh

The cost of operating a 1.5 kW heater for 10 hours at a rate of $0.15 per kWh is:

a) $2.25

b) $1.50

c) $1.00

d) $3.00

A light bulb rated at 60 watts used for 100 hours consumes how many kWh?

a) 6 kWh

b) 60 kWh

c) 600 kWh

d) 0.6 kWh

If an air conditioner uses 1.2 kWh per hour, how much energy will it use in 8 hours?

a) 9.6 kWh

b) 8.0 kWh

c) 10.0 kWh

d) 12.0 kWh

A washing machine that uses 1.5 kWh per load and operates 5 times a week will use how many kWh per week?

a) 7.5 kWh

b) 10.5 kWh

c) 12.5 kWh

d) 15.0 kWh

The total energy consumed by a 3 kW device running for 2.5 hours is:

a) 7.5 kWh

b) 6 kWh

c) 5 kWh

d) 8 kWh

If a heater runs for 2 hours at a power rating of 1.2 kW, the energy consumed is:

a) 2.4 kWh

b) 1.2 kWh

c) 3.6 kWh

d) 1.0 kWh

To calculate energy consumption in kilowatt-hours, you multiply:

a) Power (in watts) × Time (in hours)

b) Power (in kilowatts) × Time (in hours)

c) Voltage (in volts) × Current (in amps)

d) Voltage (in volts) × Time (in hours)

If a device uses 0.2 kWh per hour, how many hours can it run on 5 kWh of energy?

a) 25 hours

b) 20 hours

c) 10 hours

d) 15 hours

A 500-watt appliance running for 8 hours consumes:

a) 4 kWh

b) 5 kWh

c) 6 kWh

d) 3 kWh

The energy consumption of a 2 kW heater running for 3 hours is:

a) 6 kWh

b) 9 kWh

c) 5 kWh

d) 7 kWh

If you have a 1500-watt appliance and it operates for 2.5 hours, it will use:

a) 3.75 kWh

b) 2.5 kWh

c) 4 kWh

d) 5 kWh

The total cost to run a 2.5 kW device for 4 hours at a rate of $0.20 per kWh is:

a) $2.00

b) $3.00

c) $5.00

d) $10.00

An appliance that uses 3 kWh per day will consume how many kWh in a month (30 days)?

a) 90 kWh

b) 60 kWh

c) 100 kWh

d) 80 kWh

If a device uses 0.75 kWh per hour, how many kWh does it use in 12 hours?

a) 9 kWh

b) 8 kWh

c) 6 kWh

d) 12 kWh

A 1.5 kW appliance operating for 10 hours will use:

a) 15 kWh

b) 10 kWh

c) 12 kWh

d) 20 kWh

The energy consumption of a 200-watt bulb running for 50 hours is:

a) 10 kWh

b) 1 kWh

c) 5 kWh

d) 0.2 kWh

A 4 kW oven used for 2 hours consumes:

a) 6 kWh

b) 8 kWh

c) 4 kWh

d) 2 kWh

If an appliance uses 500 watts for 24 hours, the total energy consumption is:

a) 12 kWh

b) 10 kWh

c) 20 kWh

d) 6 kWh

A device that uses 1 kWh per day will use how many kWh in a year?

a) 365 kWh

b) 30 kWh

c) 24 kWh

d) 12 kWh

A 1 kW appliance operating for 6 hours will consume:

a) 6 kWh

b) 12 kWh

c) 4 kWh

d) 8 kWh

If a heater consumes 0.8 kWh per hour and operates for 5 hours, the total energy used is:

a) 4 kWh

b) 3.5 kWh

c) 5 kWh

d) 2 kWh

The energy consumed by a 3 kW device running for 1.5 hours is:

a) 4.5 kWh

b) 3.0 kWh

c) 5.0 kWh

d) 6.0 kWh

A 2 kW heater running for 3 hours will use:

a) 6 kWh

b) 4 kWh

c) 3 kWh

d) 2 kWh

The cost of running a 1 kW device for 8 hours at a rate of $0.10 per kWh is:

a) $0.80

b) $1.00

c) $1.50

d) $2.00

A 500-watt appliance that runs for 10 hours consumes:

a) 5 kWh

b) 10 kWh

c) 50 kWh

d) 0.5 kWh

How many kWh does a 3 kW appliance use in 4 hours?

a) 12 kWh

b) 7 kWh

c) 9 kWh

d) 15 kWh

The energy usage of a 100-watt bulb running for 150 hours is:

a) 15 kWh

b) 10 kWh

c) 7.5 kWh

d) 5 kWh

If a device consumes 2 kWh every day, how much energy does it use in 30 days?

a) 60 kWh

b) 50 kWh

c) 40 kWh

d) 70 kWh

The energy consumed by a 4 kW device operating for 1.5 hours is:

a) 6 kWh

b) 5 kWh

c) 4 kWh

d) 7 kWh

An appliance with a power rating of 0.75 kW running for 8 hours uses:

a) 6 kWh

b) 5 kWh

c) 7.5 kWh

d) 8 kWh

If a refrigerator uses 1.2 kWh per day, its monthly consumption (30 days) will be:

a) 36 kWh

b) 30 kWh

c) 40 kWh

d) 24 kWh

The energy consumption of a 2.5 kW device used for 4 hours is:

a) 10 kWh

b) 8 kWh

c) 5 kWh

d) 12 kWh

If a 300-watt device runs for 20 hours, it consumes:

a) 6 kWh

b) 5 kWh

c) 4 kWh

d) 3 kWh

A 2 kW appliance used for 6 hours per day will consume how many kWh in 30 days?

a) 360 kWh

b) 120 kWh

c) 60 kWh

d) 100 kWh

The energy consumption of a 0.5 kW heater running for 10 hours is:

a) 5 kWh

b) 3 kWh

c) 4 kWh

d) 2 kWh

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