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General Knowledge QUESTION #11563

What does CRT stand for in display technologies?

Crystal Ray Tube
Cathode Ray Tube✔️
Cabin Ray Tube
Carbon Ray Tube

Correct Answer Logic:

CRT (Cathode Ray Tube) is a vacuum tube that fires electron beams onto a phosphorescent screen to create images. CRTs were the dominant display technology for TVs and computer monitors from the 1950s through the early 2000s, before being replaced by flat-panel LCD, LED, plasma, and OLED displays.

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Library Sciences QUESTION #1514

Question 2

According to Katz (2002), which of the following best defines a 'reference source' in library science?

Any book available on the library shelf
A work designed to be consulted for specific information rather than read cover to cover✔️
A source exclusively available in digital format
A periodical published on a regular basis

Correct Answer Logic:

Katz (2002) in 'Introduction to Reference Work' defines reference sources as works designed for consultation — to retrieve specific facts, data, or guidance — rather than for continuous reading from beginning to end.

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Pakistan Affairs QUESTION #9078

Question 3

Which country assisted Pakistan in building the Karachi Nuclear Power Plant (KANUPP)?

USA
France
China
Canada✔️

Correct Answer Logic:

Canada provided the CANDU reactor for KANUPP.

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Education QUESTION #11636

Question 4

The primary purpose of Educational Psychology is to:

Contribute to an understanding of sound educational practices✔️
Provide the academic background essential for effective teaching
Provide a theoretical framework for educational research
None of these

Correct Answer Logic:

The central aim of Educational Psychology is to apply psychological principles to understand and improve educational practices — including how students learn, develop, and are motivated. While it informs teaching and research, its primary goal is to enhance the quality and effectiveness of education itself.

Correct Answer: A.

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General Knowledge QUESTION #4794

Question 5

The McMahon Line serves as the disputed border between which two countries?

India and China✔️
India and Nepal
India and Bangladesh
China and Bhutan

Correct Answer Logic:

The McMahon Line is the disputed boundary between the northeastern part of the Indian subcontinent and Tibet (China), established in 1914. China does not recognize it as a legal border.

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English QUESTION #8569

Question 6

What does the idiom 'to face the music' mean?

To be greeted rudely
To be offered warm hospitality
To be on the front seat in a concert
To bear the consequences✔️

Correct Answer Logic:

'Face the music' means to accept the unpleasant consequences.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3223

Question 7

'Referred Pain' is the phenomenon where:

Pain is only felt in the brain
Pain from a visceral organ is felt in a somatic area (like skin)✔️
Pain disappears quickly
Pain is imagined

Correct Answer Logic:

For example, heart pain is often felt in the left arm or jaw.

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Chemistry QUESTION #464

Question 8

The amount of heat absorbed by one mole of solid at 1 atm when it melts into liquid form is denoted by __________

?H?
?Hf✔️
?H?
?H?

Correct Answer Logic:

?Hf is heat of fusion

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Law QUESTION #9497

Question 9

A is found to owe a debt to both B and C by separate decrees. In execution, B attaches certain property of A. C subsequently also attaches the same property. Both attach before any sale proceeds are realised. The property is sold and the sale proceeds are insufficient to satisfy both decrees. How should the executing Court distribute the proceeds?

The proceeds are distributed rateably among all decree-holders who have attached the property, in proportion to their respective decrees✔️
The Court exercises discretion based on the equities of each case
The proceeds go entirely to B since he attached first
C receives nothing since his attachment was subsequent

Correct Answer Logic:

Section 73 CPC requires that where assets are realised by sale of property attached in execution of decrees of several Courts, the proceeds shall be distributed rateably among all decree-holders. Priority of attachment does not give a preference in distribution of realised proceeds.

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General Knowledge QUESTION #2622

Question 10

Which of the following CORRECTLY describes the difference between HDMI and DVI cables?

HDMI outputs only video while DVI outputs both video and audio
HDMI outputs both video and audio while DVI generally outputs video only✔️
Both HDMI and DVI output only video without any audio
Both HDMI and DVI output both audio and video identically

Correct Answer Logic:

HDMI (High Definition Multimedia Interface) outputs BOTH video and audio through a single cable. DVI (Digital Visual Interface) cables generally output VIDEO ONLY. This makes HDMI more practical for connecting computers to monitors and TVs with speakers.

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Chemistry QUESTION #5532

Question 11

For a reaction following the Arrhenius equation, the plot of $\ln k$ vs $\frac{1}{RT}$ gives a straight line with slope $(-y)$ units. The activation energy of the reaction is:

$y/R$ units
$y$ units✔️
$yR$ units
$-y$ units

Correct Answer Logic:

Arrhenius equation: $\ln k = \ln A - \frac{E_a}{RT}$. Plotting $\ln k$ vs $\frac{1}{RT}$, the slope = $-E_a$. Given slope = $-y$, therefore $E_a = y$ units. (Note: if plotted against $\frac{1}{T}$, slope = $-E_a/R$, but here the x-axis is $\frac{1}{RT}$, so the R is already incorporated into the x-axis, making the slope directly equal to $-E_a$.)

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Boilers Mechanical Engineering QUESTION #2404

Question 12

The Euler number (pressure coefficient) represents the ratio of:

Inertial forces to gravity forces $= V^2/(gL)$
Pressure forces to inertial forces: $Eu = p/(\rho V^2)$✔️
Viscous forces to inertial forces
Surface tension to inertial forces

Correct Answer Logic:

Euler number: $Eu=p/(\rho V^2)$, the ratio of pressure forces to inertial forces. Important in cavitation analysis.

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The Constitution of Pakistan QUESTION #9388

Question 13

Article 251(1) designates which language as the National Language of Pakistan?

Urdu and English equally
Urdu alone
Urdu, to be used as the official language within fifteen years✔️
English, until Parliament decides otherwise

Correct Answer Logic:

Article 251(1) states: 'The National language of Pakistan is Urdu, and arrangements shall be made for its being used for official and other purposes within fifteen years from the commencing day.' However, English may continue for official purposes until then. Clause (3) allows a Provincial Assembly to prescribe measures for teaching/use of a provincial language.

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Math Physics Chemistry Biology QUESTION #4259

Question 14

Glycoproteins are formed as a result of the combination of:

Lipids and proteins
Carbohydrates and proteins✔️
Nucleic acid and proteins
Fatty acids and carbohydrates

Correct Answer Logic:

Glycoproteins are conjugated proteins formed by the covalent attachment of carbohydrate chains to proteins, mainly in the Golgi apparatus.

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Pharmacokinetics and Pharmacodynamics QUESTION #3835

Question 15

Which of the following drugs is known to have the longest elimination half-life among those listed?

Amiodarone✔️
Morphine
Verapamil
Amlodipine

Correct Answer Logic:

Amiodarone has an extremely long half-life of $40$–$55$ days due to extensive tissue distribution and very slow elimination.

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Biomedical Sciences QUESTION #3800

Question 16

What is the physiological effect of parathyroid hormone (PTH) on calcium and phosphate metabolism?

Increased mobilisation of calcium from bone✔️
Decreased renal tubular reabsorption of calcium
Decreased resorption of phosphate from bone
Decreased excretion of phosphate

Correct Answer Logic:

PTH raises serum calcium by stimulating osteoclastic bone resorption, increasing renal tubular calcium reabsorption, and promoting renal phosphate excretion.

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Maths QUESTION #4556

Question 17

What is $15\%$ of $80$?

$12$✔️
$15$
$95$
$1200$

Correct Answer Logic:

$15\%$ of $80 = \frac{15}{100} \times 80 = 0.15 \times 80 = 12$

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Bio-Technology QUESTION #10620

Question 18

The main purpose of high-throughput screening (HTS) in biotechnology process development is to:

Scale up a bioprocess directly from laboratory to industrial production
Rapidly evaluate thousands of conditions/strains in miniaturised format to identify optimal parameters✔️
Perform detailed metabolic flux analysis of a single well-characterised strain
Replace animal testing with in vitro assays for drug toxicity

Correct Answer Logic:

High-throughput screening (HTS) uses miniaturised reaction formats (microtitre plates, microfluidic chips) and robotic liquid handling to simultaneously test thousands of parameters — strains, media compositions, pH, temperature, inducer concentrations — in parallel. Combined with Design of Experiments (DoE) and automated analytical systems (e.g. online spectrophotometry), HTS dramatically accelerates the early stages of bioprocess development, reducing time and reagent costs compared to traditional sequential optimisation.

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MCQs Section QUESTION #5266

Question 19

کون سی ضربِ مثل درست ہے؟

چیل کے گھر میں کہاں
چیل کے گھونسلے میں گوشت کہاں✔️
چیل کے گھونسلے میں ماس کہاں
چیل کے گھونسلے میں بلی کہاں

Correct Answer Logic:

صحیح ضربِ مثل ہے: 'چیل کے گھونسلے میں گوشت کہاں'۔

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MBBS QUESTION #10276

Question 20

The knee-jerk (patellar tendon) reflex, used clinically to assess the L3-L4 spinal segments, is a classic example of which type of reflex arc?

A monosynaptic stretch reflex✔️
A polysynaptic flexor withdrawal reflex
The inverse (Golgi tendon organ) reflex only
An autonomic visceral reflex

Correct Answer Logic:

The patellar reflex is the prototypical monosynaptic stretch reflex: muscle spindle afferents from the quadriceps synapse directly onto alpha motor neurons supplying the same muscle, producing rapid reflex contraction — used clinically to localize spinal segmental level and assess for upper vs. lower motor neuron pathology.

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