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Physics QUESTION #7845
Question 1

Reverse-biased PN junction reverse current is of order:

  • Gigaamperes
  • Kiloamperes
  • Megaamperes
  • Microamperesโœ”๏ธ
Correct Answer Logic:

Reverse saturation current is very small (ฮผA range for Si).

Uploaded by: Fani Warraich
MCQs Section QUESTION #4845
Question 2
Pick the word nearly opposite in meaning to "TURBID"
  • Muddy
  • Clearโœ”๏ธ
  • Invariable
  • Improbable
Correct Answer Logic:
Turbid means cloudy, opaque, or muddy, especially referring to liquid. Its antonym is 'clear,' meaning transparent and free from cloudiness.
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General Abilities QUESTION #7966
Question 3
Aslam ran around a \(\dfrac{1}{4}\) km track 17 times. How many kilometres did he run?
  • \(4\dfrac{1}{4}\) kmโœ”๏ธ
  • 4 km
  • \(4\dfrac{1}{2}\) km
  • \(4\dfrac{3}{4}\) km
Correct Answer Logic:
Total distance \(= 17 \times \dfrac{1}{4} = \dfrac{17}{4} = 4\dfrac{1}{4}\) km
Uploaded by: Fani Warraich
Correct Answer Logic:
Absolute bioavailability of Batch 2 $= \dfrac{165\% \times 55\%}{100} = 90.75\%$. The relative bioavailability is referenced against Batch 1's absolute bioavailability.
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Education QUESTION #6915
Question 5
When should a teacher use 'formative' versus 'summative' evaluation of classroom management effectiveness?
  • Formative evaluation occurs at year-end; summative evaluation occurs after each lesson
  • Formative evaluation provides continuous, ongoing feedback to improve management strategies in real time; summative evaluation provides an end-of-term assessment of overall management effectivenessโœ”๏ธ
  • Formative evaluation is used for student behavior; summative evaluation is used for teacher performance appraisal
  • Summative evaluation is only used when a student is referred for counseling; formative evaluation is used for all other cases
Correct Answer Logic:
Classroom management evaluation should operate on two tracks: formative (continuous, embedded, used to make ongoing adjustments to strategies and approaches) and summative (terminal, used at the end of a term or year to assess whether the management system achieved its intended outcomes). Both are necessary for a reflective, improving practice.
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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3570
Question 6
'Phytochemistry' is the study of:
  • Plant classification
  • Plant chemicals (phytochemicals)โœ”๏ธ
  • Plant growth
  • Soil
Correct Answer Logic:
It focuses on the extraction and identification of plant constituents.
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Boilers Mechanical Engineering QUESTION #3994
Question 7
If an Inspector discovers a 'Structural Flaw' that makes a boiler dangerous, they are empowered to:
  • Give a verbal warning only
  • Immediately prohibit the use of the boilerโœ”๏ธ
  • Suggest a paint job
  • Wait until the next annual inspection
Correct Answer Logic:
Safety is the priority; the Inspector can issue an order to stop operation until repairs are certified.
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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3178
Question 8
The process of stopping bleeding after a blood vessel injury is called:
  • Haematopoiesis
  • Hemostasisโœ”๏ธ
  • Homeostasis
  • Hemolysis
Correct Answer Logic:
Hemostasis involves vascular spasm, platelet plug formation, and blood coagulation.
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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3510
Question 9
Substituting a genuine drug with look-alike exhausted or exhausted materials is called:
  • Sophistication
  • Admixture
  • Substitutionโœ”๏ธ
  • Deterioration
Correct Answer Logic:
Substitution is the replacement of the original with something totally different or inferior.
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Nursing QUESTION #9309
Question 10
In wound care, the term debridement refers to:
  • Application of antibiotic ointment to a wound
  • Removal of devitalized, necrotic tissue from a wound to promote healingโœ”๏ธ
  • Covering a wound with an occlusive dressing
  • Irrigating a wound with normal saline
Correct Answer Logic:

Debridement is the removal of necrotic, devitalized, and contaminated tissue from a wound. It is essential for healing because:

  • Necrotic tissue acts as a bacterial culture medium
  • Devitalized tissue prevents granulation tissue formation
  • Dead tissue impairs leukocyte migration (immune function)

Types of debridement:

TypeMethod
Surgical/SharpScalpel, scissors โ€” fastest method
MechanicalWet-to-dry dressings, wound irrigation, hydrosurgery
AutolyticOcclusive dressings activate body's own enzymes โ€” slowest, most selective
EnzymaticCollagenase ointment applied topically
BiologicalMaggot therapy (Larval Debridement Therapy)
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Correct Answer Logic:
Singular verb 'is' agrees with the singular subject 'the triangle.'
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Correct Answer Logic:
Russia was granted OIC observer status in 2005.
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Boilers Mechanical Engineering QUESTION #2434
Question 13
The net radiation heat exchange rate between a gray surface (emissivity \(\varepsilon\), area \(A\), temperature \(T_s\)) and a large enclosure (temperature \(T_{cav}\)) is:
  • \(q_{rad} = \sigma A(T_s^4 - T_{cav}^4)\) (blackbody only)
  • \(q_{rad} = \varepsilon\sigma A(T_s^4 - T_{cav}^4)\)โœ”๏ธ
  • \(q_{rad} = h_r A(T_s^2 - T_{cav}^2)\)
  • \(q_{rad} = \varepsilon\sigma A(T_s - T_{cav})^4\)
Correct Answer Logic:
Net radiation from a gray surface in a large enclosure: \(q_{rad}=\varepsilon\sigma A(T_s^4-T_{cav}^4)\). This can be linearized as \(q_{rad}=h_r A(T_s-T_{cav})\).
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Reading and Writing (Module-1) QUESTION #5440
Question 14
Research on whether elected office changes behavior needs a control group similar to office-holders but not holding office. Since researchers can't control election outcomes, they ____
  • struggle to find valid data about non-office-holding politicians.
  • can only study past office-holders, not present ones.
  • should select a control group different in several significant ways.
  • will find it difficult to identify an appropriate control group.โœ”๏ธ
Correct Answer Logic:
The inability to assign office randomly makes finding a comparable control group hard.
Uploaded by: Fani Warraich
Journalism / Mass Communication QUESTION #6388
Question 15
The Soviet Theory of the press, as described in the textbook, emerged after the Russian Revolution of 1917. Which of the following is NOT a feature of the Soviet Theory?
  • The media is closely tied to communist ideology
  • The media serves as a collective agitator, propagandist, and educator in building communism
  • No private ownership of the media is permitted
  • Journalists and media professionals have full editorial autonomy within their organisationsโœ”๏ธ
Correct Answer Logic:

The Soviet Theory of the press emerged from Marxist-Leninist ideology after the 1917 Russian Revolution. Its key features are:

  • Closely tied to communist ideology โ€” media is an instrument of the state/party
  • Media functions as a collective agitator, propagandist, and educator in building communism (Lenin's phrase)
  • No private ownership of media โ€” all media belongs to the state or party
  • The government is superior to media institutions
  • Media is expected to be serious and purposeful

Full editorial autonomy for journalists is a feature of the Libertarian Theory, which is the direct opposite of the Soviet approach. Under Soviet theory, media professionals are instruments of the state's ideological goals โ€” they have no independent editorial authority. The Soviet Theory does, however, propose a positive role for media: not merely reinforcing authority (as in Authoritarianism), but actively building a new communist society.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3667
Question 16
'Cod Liver Oil' is a rich source of which vitamins?
  • B and C
  • A and Dโœ”๏ธ
  • E and K
  • None
Correct Answer Logic:
It is used to prevent rickets and improve immunity.
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English QUESTION #8436
Question 17
Identify the incorrectly spelled word:
  • Tournament
  • Omniientโœ”๏ธ
  • Government
  • Refreshment
Correct Answer Logic:
'Omniient' is misspelled; correct is 'Omniscient'.
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Pakistan Affairs QUESTION #9080
Question 18
Pakistan won its first Olympic Gold Medal in field hockey in which year?
  • 1955
  • 1960โœ”๏ธ
  • 1965
  • 1970
Correct Answer Logic:
Pakistan won gold in hockey at the 1960 Rome Olympics.
Uploaded by: Fani Warraich
Math Physics Chemistry Biology QUESTION #519
Question 19
Sharks and rays are included in class:
  • Cyclostomata
  • Chondrichthyesโœ”๏ธ
  • Osteichthyes
  • Tetrapoda
Correct Answer Logic:
Sharks and rays are cartilaginous fish (Chondrichthyes)
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Correct Answer Logic:
Using the work formula: Men ร— Days = constant
\(10 \times 20 = 8 \times d \Rightarrow d = \dfrac{200}{8} = 25\) days
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