General MCQs
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Q2961.What is the colour of Oxyhaemoglobin?
Correct Answer: B
Oxyhaemoglobin, formed when oxygen binds to haemoglobin, is bright red. Deoxygenated blood appears darker red because haemoglobin changes colour when it releases oxygen.
Q2962.Pepsinogen is converted into stomach in
Correct Answer: D
Pepsinogen is converted into pepsin in the acidic environment of the stomach. Hydrochloric acid activates pepsinogen, and pepsin then digests proteins into smaller peptides.
Q2963.After fertilization, a fruit develops from which part of the plant?
Correct Answer: C
After fertilization, the fruit develops from the ovary of the flower. The ovules inside the ovary become seeds, while the ovary wall develops into the fruit wall or pericarp.
Q2964.The number of elements on power set {1.2.3} is:
Correct Answer: D
A set with n elements has 2^n subsets in its power set. The set {1, 2, 3} has 3 elements, so its power set has 2^3 = 8 elements.
Q2965.How many subsets does an empty subset have?
Correct Answer: B
The empty set has exactly one subset: the empty set itself. In general, a set with n elements has 2^n subsets, so when n = 0 the number is 2^0 = 1.
Q2966.At the time of the 2019 paper, who was the Chief of the Air Staff of Pakistan?
Correct Answer: C
Air Chief Marshal Mujahid Anwar Khan served as Chief of the Air Staff in 2019. Therefore, Option C is correct.
Q2967.Sindh Sagar doab is one of the five major doabs of the Punjab province . It is the tract of land between the following rivers
Correct Answer: C
Indus and Jhelum is the correct answer because it matches the fact or concept tested by this question.
Q2968.Kartarpur corridor links which Gurdwara to India:
Correct Answer: B
Gurdwara Darbar Sahib is the correct answer because it matches the fact or concept tested by this question.
Q2969.Asabiyya, a concept of social solidarity with an emphasis on unity, was given by
Correct Answer: A
Asabiyyah, meaning social cohesion or group solidarity, was developed as a major concept by Ibn Khaldun. In the Muqaddimah, he used it to explain how groups rise to power and why ruling dynasties eventually decline.
Q2970.Which city was hit by the earthquake of 1935?
Correct Answer: B
Quetta is the correct answer because it matches the fact or concept tested by this question.
Q2971.Taj Mahal was built by Shah Jahan to immortalize his wife Mumtaz Mahal.Its construction spanned 22 years. When was the project commenced?
Correct Answer: B
Construction of the Taj Mahal began in 1632 under Mughal emperor Shah Jahan after the death of Mumtaz Mahal. The monument became one of the finest examples of Mughal architecture and a symbol of imperial patronage and grief.
Q2972.Which among the following instrument is used to measure the amount of liquid precipitation(rain) over a set period of time?
Correct Answer: B
Rain Gauge is the correct answer because it matches the fact or concept tested by this question.
Q2973.Solar eclipse occurs when:
Correct Answer: B
A solar eclipse occurs when the Moon comes between the Sun and the Earth. The Moon blocks sunlight from reaching parts of Earth, producing a partial or total darkening of the Sun as seen from the ground.
Q2974.A Camera uses convex lens to form an image which is:
Correct Answer: B
A camera uses a convex lens to form a real, inverted and diminished image on the film or digital sensor. The lens converges light rays from the object so that a smaller image is focused behind the lens.
Q2975.Dengue is caused by which type of mosquito:
Correct Answer: C
Dengue fever is transmitted mainly by the Aedes aegypti mosquito. This mosquito breeds in clean stagnant water and spreads the dengue virus when it bites an infected person and then another person.
Q2976.Edward Jenner successfully developed world's first vaccine in:
Correct Answer: A
1796 is the correct answer because it matches the fact or concept tested by this question.
Q2977.A mechanical stopwatch can measure a time interval up to a minimum -------- seconds
Correct Answer: B
0.1 s is the correct answer because it matches the fact or concept tested by this question.
Q2978.Who among the following transmitted first radio signal through air?
Correct Answer: B
Marconi is the person or title historically associated with this fact. Such biographical MCQs test a specific contribution, office, work or distinction, so the explanation should connect the person with the achievement or role named in the question.
Q2979.Which among the following defines the event of Supernova?
Correct Answer: B
A supernova is an exploding star that releases an enormous amount of energy at the end of a star’s life cycle. It may occur when a massive star collapses or when a white dwarf in a binary system undergoes runaway fusion.
Q2980.Which instrument is suitable to measure the internal diameter of a test tube?
Correct Answer: A
Vernier callipers are suitable for measuring the internal diameter of a test tube because they have inside jaws for internal measurements. They can also measure external diameter and depth more accurately than a simple ruler.