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National Cybercrime Investigation Agency13 Questions
General Knowledge — Information Technology & General Awareness MCQs
Practice General Knowledge — Information Technology & General Awareness multiple-choice questions for National Cybercrime Investigation Agency competitive exams. Each question includes the correct answer and a short explanation, and past-paper questions are marked so you can revise both repeated and fresh material in one place.
The concentration of hydroxide ions (OH-) increases.
The total salt concentration increases.
The concentration of hydrogen ions (H+) decreases.
The solution's temperature must also increase.
Past Paper DetailsICTP-COPY
ExplanationpH is defined as -log[H+]. Therefore, an increase in pH signifies a decrease in the hydrogen ion concentration ([H+]), indicating that the solution is becoming more basic.
Platelets (Thrombocytes)
Erythrocytes (Red Blood Cells)
Plasma proteins (e.g., Fibrinogen)
Lymphocytes (Immune Cells)
Past Paper DetailsICTP-COPY
ExplanationPlasma proteins, specifically fibrinogen, are converted into fibrin threads, which form the structural meshwork of a blood clot.
Activating vitamin B12 by removing an adenosyl group
Facilitating the breakdown of lactate into pyruvic acid in anaerobic glycolysis
Catalyzing the hydration of carbon dioxide (CO2 + H2O <=> H2CO3) in red blood cells
Converting glucose into glycogen via the action of glucokinase in the liver
Past Paper DetailsICTP-COPY
ExplanationCarbonic anhydrase rapidly catalyzes the reversible reaction involving CO2 and water, generating bicarbonate ions, which is central to blood buffering.
Atmospheric humidity levels absorb higher frequency sound waves disproportionately.
The amplitude decreases, causing the ear to misinterpret the frequency.
The speed of sound itself changes proportionally to the distance traveled.
The wavelength is stretched due to the relative motion of source and receiver.
Past Paper DetailsICTP-COPY
ExplanationThe Doppler effect causes a perceived decrease in frequency (lower pitch) because the wavelength is stretched relative to the stationary observer's frame of reference.
Fe(OH)₃
FeO
Fe₂O₃·xH₂O
FeSO₄
Past Paper DetailsICTP-COPY
ExplanationRust is hydrated iron(III) oxide, represented chemically as Fe₂O₃·xH₂O.
From a more optically dense medium to a less optically dense medium
From a vacuum to any transparent medium
From a less optically dense medium to a more optically dense medium
Through a polarized medium perpendicular to the boundary surface
Past Paper DetailsICTP-COPY
ExplanationTIR requires light to travel from a higher refractive index (optically dense) medium to a lower refractive index (optically less dense) medium, and the angle of incidence must exceed the critical angle.
Watson-Crick pairing
Gibbs free energy change
Electrostatic shielding effect
Polymerase chain reaction (PCR) cycle
Past Paper DetailsICTP-COPY
ExplanationWatson-Crick pairing describes the specific hydrogen bonding rules (A-T, G-C) that maintain the integrity of the DNA double helix.
Complement system C3a anaphylatoxin action
Prothrombin activation by Tissue Factor
Fibrinogen binding to Thrombin receptors
Platelet phospholipids and Factor XII activation
Past Paper DetailsICTP-COPY
ExplanationThe initial phase involves the activation of intrinsic pathways (like Factor XII) upon contact with foreign or negatively charged surfaces, triggering the cascade.
Platelets (Thrombocytes)
Erythrocytes (Red Blood Cells)
Lymphocytes (White Blood Cells)
Plasma proteins (e.g., Albumin)
Past Paper DetailsICTP-COPY
ExplanationPlatelets are cell fragments that initiate the coagulation cascade upon vascular injury by adhering to the site and triggering the formation of a fibrin mesh.
Hund's Rule
Pauli Exclusion Principle
Valence Bonding Concept
Octet Rule
Past Paper DetailsICTP-COPY
ExplanationThe Octet Rule states that atoms tend to gain, lose, or share electrons to achieve eight valence electrons, mimicking noble gases.
Nitrogen layer, which provides atmospheric stability.
Ozone layer, located primarily in the stratosphere.
Mesospheric aerosols, which scatter light.
Tropospheric gases, which contain water vapor.
Past Paper DetailsICTP-COPY
ExplanationThe ozone layer (O₃) in the stratosphere is highly effective at absorbing the harmful UV-B and UV-C wavelengths of solar radiation.
Hydrogen bond, occurring between highly electronegative atoms.
Covalent bond, where electrons are shared between atoms.
Ionic bond, formed by the complete transfer of valence electrons.
Metallic bond, characterized by a 'sea' of delocalized electrons.
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ExplanationIonic bonds are formed by the transfer of electrons from one atom (becoming positive) to another (becoming negative), resulting in strong electrostatic attraction between ions.
Electromagnetic force
Nuclear force
Gravitational force
Frictional force
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ExplanationGravity is the attractive force exerted by masses, and it provides the necessary centripetal force for orbital motion.
Frequently Asked Questions
Are these General Knowledge — Information Technology & General Awareness MCQs free?
Yes. Every General Knowledge — Information Technology & General Awareness MCQ on this page is free to practice, including the correct answer and explanation.
Do these include past-paper questions?
Yes — questions sourced from past papers are clearly marked with a "Past Paper" badge, alongside fresh practice questions.
Which exams do these General Knowledge — Information Technology & General Awareness MCQs help with?
They are aimed at National Cybercrime Investigation Agency and related Pakistani competitive exams that test General Knowledge — Information Technology & General Awareness.
How should I practice subject-wise MCQs?
Attempt each question first, then reveal the answer and read the explanation. Short, focused sessions on one subject work better than long unstructured reading.