Free MCQs & Online Quiz Practice for Exams

Q: Decay of one radioactive atom per second is equal to (Entry Test 2007-2010)

A) One curie

B) One Becquerel

C) One half-life

D) None

Q: A radioactive substance has a half-life of 60 minutes. During 3 hours the percentage of material decayed would be (ET 2016)

A) 12.5%

B) 87.5%

C) 8.5%

D) 25.1%

Q: Nuclear fusion at the Sun is increasing the supply of (ET 2015)

A) Hydrogen

B) Helium

C) Nucleons

D) Nucleons

Q: Gamma rays have higher penetrating power than α and β rays due to (ET 2010)

A) No charge

B) Non-material nature

C) Small size

D) Lighter particles

Q: The lifetime of an ordinary excited state is (ET 2010)

A) 10^-13 sec

B) 10^-8 sec

C) 10 sec

D) 1.0 sec

Q: The rest mass of the deuteron is equivalent to 1876 MeV; proton 939 MeV; neutron 940 MeV. Deuteron may disintegrate to proton and neutron if it captures an X-ray photon of energy (ET 2015)

A) 2 MeV

B) 3 MeV

C) 4 MeV

D) 5 MeV

Q: Uranium-238 decays to Thorium-234 by the process of (ET 2010)

A) Fission

B) β decay

C) α decay

D) γ decay

Q: One disintegration per second is equal to (ET 2011)

A) One curie

B) One Becquerel

C) One half-life

D) All of these

Q: The first artificial radioactive substance was made by bombarding aluminum (Al) with α-particles. This produced an unstable isotope of phosphorus (P). What was the by-product of this reaction? (ET 2014)

A) An α-particle

B) A β-particle

C) A γ-ray

D) None

Q: Fission reaction can be produced in U-233 by (ET 2011)

A) Fast neutrons

B) Slow neutrons

C) Thermal neutrons

D) All of these

Q: Half-life of a given sample is 44 years. The sample will reduce to 50% of the original value after (ET 2012)

A) 22 years

B) 88 years

C) 11 years

D) None

Q: The half-life of 22 Na is 2.6 years. If x grams of this sodium isotope are initially present, how much is left after 13 years? (ET 2014)

A) x/32

B) x/13

C) x/8

D) x/5

Q: In the nuclear reaction Na → Mg + X, the particle X is (ET 2012)

A) Electron

B) Positron

C) Proton

D) Neutron

Q: The activity of the radioactive material can be expressed in units of (ET 2012)

A) Curie

B) Becquerel

C) Tesla

D) Both A and B

Q: Which Pakistani province launched the 'Sehat Sahulat Program' in 2025 to expand universal health coverage to its populace?

A) Punjab

B) Balochistan

C) Sindh

D) Khyber Pakhtunkhwa

Q: The recent expansion of the China-Pakistan Economic Corridor (CPEC) to include new industrial zones is primarily aimed at enhancing which sector in Pakistan?

A) Agriculture

B) Services and IT

C) Energy Infrastructure

D) Manufacturing and Industrialization

Q: As of late 2025, the latest official estimate for Pakistan's literacy rate (ages 15 and above) is closest to:

A) 48%

B) 55%

C) 63%

D) 70%

Q: Which significant CPEC infrastructure project, focusing on energy transmission, was declared fully operational in late 2025?

A) The Matiari-Lahore HVDC Transmission Line

B) The Karakoram Highway Phase II

C) The Sukkur-Multan Motorway (M-5)

D) The Gwadar East Bay Expressway

Q: Which significant military exercise was conducted by the Pakistan Army in the mountainous terrain near the Line of Control (LoC) in late 2025?

A) Exercise Sea Lion

B) Exercise Azm-e-Nau

C) Exercise Desert Fox

D) Exercise Tameer-e-Nau

Q: The Global Hunger Index (GHI) 2025 categorized Pakistan’s level of hunger as:

A) Moderate

B) Alarming

C) Extremely Alarming

D) Serious