Energy | MCQs

Explanation

Tarbela Dam  is the largest earth-filled dam in the world

It is located in the Haripur district of Khyber Pakhtunkhwa.

it is 485 feet (148 m) high above the Indus riverbed.

Its construction began in 1968

it was Completed in 1976

Construction was undertaken by the Italian firm Salini Impregilo.

Explanation

Lakhra Coal field was dedicated in 1990 to coal-fired power generation

Lakhra Coal field is located in Sindh the North of Hyderabad

The Lakhra coalmine is spread over an area of 1,309sq km

The Lakhra coal field is located on the west side of the Indus River Valley 

Lakhra town is famous for its Coal

The mine has coal reserves amounting to 1.33 billion tonnes of coking coal

Lakhra Coal field one of the largest coal reserves in Pakistan

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nd9-2-2023

Explanation

In 2023, Pakistan entered into a long‑term commercial agreement with Russia to import crude oil at a discounted rate (approximately $60/barrel, around $10 under market price).

The first agreed cargo of ~100,000 metric tonnes began arriving in late 2023, with Pakistani refineries.

Such as Cnergyico and Pakistan Refinery Limited—receiving the shipment and refining the oil locally.

Explanation

Explanation

Pakistan meets only about 10% of its crude oil demand through local production.

The remaining 90% is imported to fulfill the country's energy needs.

Explanation

Explanation

Major Sources of Electricity in Pakistan

Thermal: 60% share

Hydro: 30% share

Nuclear: 9% share

Renewables: 1% share

Major Sources of Electricity/Energy in the World

Oil & Gas: 53% share

Coal: 27% share

Renewables: 13% share

Nuclear: 7% share

Explanation

Three mutual conversions of energy forms occur at nuclear power plants:

nuclear energy is converted into thermal energy,

thermal energy is converted into mechanical energy,

and mechanical energy is converted into electric energy.

Explanation

The first biogas plant was installed in Mumbai, India, in 1859 at the Matunga leper asylum.

It was the first anaerobic digestion-based biogas plant, utilizing human waste for lighting, 

Explanation

Attenuation refers to the loss of signal strength as it travels through a medium, causing the signal to weaken over distance.

It is commonly seen in electrical signals, where the energy diminishes due to resistance or interference.