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Kilowatt-Hours MDCAT MCQs with Answers

Kilowatt-Hours MDCAT MCQs

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

Answer
c) 1,000 watt-hours

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

Answer
a) 6 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

Answer
a) 20 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

Answer
a) 70 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

Answer
a) 12 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

Answer
a) $2.25

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

Answer
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

Answer
a) 9.6 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

Answer
a) 7.5 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

Answer
a) 7.5 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

Answer
a) 2.4 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)

Answer
b) Power (in kilowatts) × 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

Answer
a) 25 hours

A 500-watt appliance running for 8 hours consumes:
a) 4 kWh
b) 5 kWh
c) 6 kWh
d) 3 kWh

Answer
a) 4 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

Answer
a) 6 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

Answer
a) 3.75 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

Answer
b) $3.00

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

Answer
a) 90 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

Answer
c) 9 kWh

A 1.5 kW appliance operating for 10 hours will use:
a) 15 kWh
b) 10 kWh
c) 12 kWh
d) 20 kWh

Answer
a) 15 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

Answer
d) 1 kWh

A 4 kW oven used for 2 hours consumes:
a) 6 kWh
b) 8 kWh
c) 4 kWh
d) 2 kWh

Answer
b) 8 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

Answer
a) 12 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

Answer
a) 365 kWh

A 1 kW appliance operating for 6 hours will consume:
a) 6 kWh
b) 12 kWh
c) 4 kWh
d) 8 kWh

Answer
a) 6 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

Answer
b) 4 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

Answer
a) 4.5 kWh

A 2 kW heater running for 3 hours will use:
a) 6 kWh
b) 4 kWh
c) 3 kWh
d) 2 kWh

Answer
a) 6 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

Answer
a) $0.80

A 500-watt appliance that runs for 10 hours consumes:
a) 5 kWh
b) 10 kWh
c) 50 kWh
d) 0.5 kWh

Answer
a) 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

Answer
a) 12 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

Answer
a) 15 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

Answer
a) 60 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

Answer
a) 6 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

Answer
a) 6 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

Answer
a) 36 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

Answer
a) 10 kWh

If a 300-watt device runs for 20 hours, it consumes:
a) 6 kWh
b) 5 kWh
c) 4 kWh
d) 3 kWh

Answer
a) 6 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

Answer
b) 360 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

Answer
a) 5 kWh

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