Reading Mode - Questions

Electrical Engineering QUESTION #2179

A lossless $50\,\Omega$ transmission line of electrical length $\lambda/4$ is terminated with $Z_L = 25\,\Omega$. The input impedance seen at the source is:

$100\,\Omega$✔️
$25\,\Omega$
$50\,\Omega$
$12.5\,\Omega$

Correct Answer Logic:

Quarter-wave transformer property: $Z_{in} = \frac{Z_0^2}{Z_L} = \frac{(50)^2}{25} = \frac{2500}{25} = 100\,\Omega$.

Uploaded by: Fani Warraich

Biology Zoology Botany QUESTION #1350

Question 2

Which of the following statements is TRUE about animal behavior?

Animals will derive their current behavior from past experiences✔️
Two animals of the same species will have exactly identical behavior
Animals will behave in the same manner with all human beings
None of these

Correct Answer Logic:

Animal behavior is shaped by both genetics (innate) and experience (learned). Animals can learn from past experiences through conditioning, habituation, imprinting, and trial-and-error, which modifies their current behavior. Two animals of the same species do NOT have identical behavior due to individual variation and different experiences. Behavior also varies with context.

Uploaded by: Fani Warraich

Psychology QUESTION #9928

Question 3

During the stage of concrete operations, children:

Understand the concept of reversibility✔️
Do not yet understand the concept of conservation
Are able to solve abstract problems
None of these

Correct Answer Logic:

Piaget's concrete operations stage (ages 7–11) is characterized by acquisition of reversibility — understanding that actions can be mentally reversed. Children also master conservation during this stage; abstract reasoning develops later.

Uploaded by: Fani Warraich

English QUESTION #8453

Question 4

NETTLED means:

displeased
Agreed
Annoyed✔️
None of these

Correct Answer Logic:

Nettled means irritated or annoyed.

Uploaded by: Fani Warraich

Physics QUESTION #7848

Question 5

Photoelectric effect does not occur if incident light frequency is:

Below threshold✔️
Equal threshold
Three times threshold
Twice threshold

Correct Answer Logic:

No emission below threshold frequency (ν < ν₀).

Uploaded by: Fani Warraich

Physical Education QUESTION #6805

Question 6

In the philosophy of Realism, physical education is viewed as:

A purely symbolic activity with no practical value
A necessary function to maintain the 'human machine' for productivity and health✔️
A mystical experience that transcends physical laws
An optional extracurricular activity for the elite only

Correct Answer Logic:

Realists view the body as a physical reality that must be kept in optimal condition through scientific principles to function effectively in the world.

Uploaded by: Fani Warraich

Pakistan Affairs QUESTION #622

Question 7

What is the name of the economist who developed the current Human Development Index (HDI)?

Dr. Qaisar Bengali
Dr. Mahbub ul Haq✔️
Dr. Hafeez Pasha
None of these

Correct Answer Logic:

Dr. Mahbub ul Haq, a Pakistani economist, created the HDI in 1990 .

Uploaded by: Fani Warraich

Ability / HR / Governance / Special Education QUESTION #1921

Question 8

Under Rule 12(2) if a Minister cannot agree with the Finance Minister and desires to press a proposal requiring Finance Division concurrence what is the procedure?

The proposal is automatically rejected
The Minister may submit it to the Prime Minister or if the Prime Minister desires to the Cabinet✔️
The proposal is referred to the Secretaries' Committee for resolution
The Cabinet Secretary decides the matter

Correct Answer Logic:

Rule 12(2) provides that if a Minister cannot reach agreement with the Minister for Finance and desires to press the proposal he shall submit it to the Prime Minister or if the Prime Minister so desires to the Cabinet.

Uploaded by: Fani Warraich

Biology Zoology Botany QUESTION #1355

Question 9

Which element is an essential micronutrient for nitrogen fixation in legumes?

Calcium
Manganese
Molybdenum✔️
Magnesium

Correct Answer Logic:

Molybdenum (Mo) is an essential micronutrient required for nitrogen fixation. It is a component of the nitrogenase enzyme complex (specifically the FeMo-cofactor of the MoFe protein) in nitrogen-fixing bacteria such as Rhizobium found in legume root nodules. Without Mo, nitrogenase cannot reduce atmospheric N$_2$ to ammonia.

Uploaded by: Fani Warraich

Islamic Studies QUESTION #7927

Question 10

Which Surah was first revealed?

Al-Annam
Al-Fateha
Al-baqarah
None of these✔️

Correct Answer Logic:

Surah Al-Alaq was the first Surah revealed, specifically its first five verses. The revelation began with 'Iqra' (Read) in the Cave of Hira in 610 CE. Since 'Al-Alaq' is not among the given options, the answer is 'None of these.' Al-Alaq means 'The Clot' and emphasizes knowledge and learning.

Uploaded by: Fani Warraich

MCQs Section QUESTION #5111

Question 11

الف نون کس کی تخلیق ہے؟

یونس جاوید
کمال احمد رضوی✔️
حسینہ معین
احمد ندیم قاسمی

Correct Answer Logic:

الف نون مشہور ٹی وی ڈرامہ کمال احمد رضوی نے تخلیق کیا جو پی ٹی وی کے معروف کرداروں پر مشتمل تھا۔

Uploaded by: Fani Warraich

Maths QUESTION #4575

Question 12

Average of $5, 10, 15$ is $A$. If $20$ is added, what is the new average?

$10$
$12.5$✔️
$15$
$A + 20$

Correct Answer Logic:

Old average = $\frac{5+10+15}{3} = 10$. New average = $\frac{5+10+15+20}{4} = \frac{50}{4} = 12.5$

Uploaded by: Fani Warraich

Security Measures to Maintain Law and Order QUESTION #891

Question 13

"Trace Detection" technology (ETD) is a measure to maintain order by identifying:

Metal objects
Microscopic explosive particles✔️
Stolen currency
Overweight bags

Correct Answer Logic:

Explosive Trace Detectors are used when physical search or X-ray is insufficient to clear a suspicion of "Sabotage" (Section 6).

Uploaded by: Fani Warraich

Chemistry QUESTION #4343

Question 14

Chlorination of benzene in the presence of iron(III) chloride involves mechanism of:

Electrophilic addition
Electrophilic Substitution✔️
Free radical Substitution
Free radical halogenation

Correct Answer Logic:

Benzene undergoes electrophilic aromatic substitution (EAS). $FeCl_3$ acts as a Lewis acid catalyst, generating the electrophile $Cl^+$ from $Cl_2$, which then attacks the benzene ring.

Uploaded by: Fani Warraich

Nursing QUESTION #9256

Question 15

A child with Protein Energy Malnutrition (PEM) presents with pitting edema of feet and legs, sparse discolored hair, fatty liver, and normal or above-normal weight for age. This presentation is BEST classified as:

Marasmus
Kwashiorkor✔️
Marasmic-Kwashiorkor
Nutritional rickets

Correct Answer Logic:

Classification of Protein Energy Malnutrition (PEM):

Feature	Marasmus	Kwashiorkor
Primary deficiency	Total calories (protein + energy)	Protein deficiency with adequate carbohydrates
Weight	Severely underweight (<60% expected)	May appear normal (edema masks wasting)
Edema	Absent	Present (pitting, starts from feet)
Appearance	'Old man' face, skin and bones	Moon face, edematous
Hair	Sparse, thin	Sparse, discolored (flag sign), brittle
Liver	Normal	Fatty liver (due to low apolipoprotein)
Appetite	Ravenous	Anorexia
Mood	Alert, irritable	Apathetic, miserable

This child has Kwashiorkor: edema + fatty liver + discolored hair + normal weight (edema masking true weight loss).

WHO management: 10 steps — treat hypoglycemia, hypothermia, dehydration, electrolyte imbalance, infections, micronutrient deficiencies, cautious feeding, catch-up growth, sensory stimulation, and follow-up.

Uploaded by: Fani Warraich

Education QUESTION #7592

Question 16

A researcher studying 'facilities most likely to enhance and sustain teacher motivation' should use which tool for data collection?

Questionnaire✔️
Observation
School record
None of these

Correct Answer Logic:

Questionnaires can efficiently gather perceptions and opinions from many teachers about which facilities motivate them, making them suitable for this research.

Uploaded by: Fani Warraich

MCQs Section QUESTION #5060

Question 17

درست ضربِ مثل کی نشاندہی کریں۔

چیل کے گھونسلے میں ماس کہاں
چیل کے گھونسلے میں بوٹی کہاں
چیل کے گھونسلے میں گوشت کہاں✔️
ان میں سے کوئی نہیں

Correct Answer Logic:

درست ضربِ مثل ہے: 'چیل کے گھونسلے میں گوشت کہاں' جو کنجوس یا ظالم کے ہاں بھلائی نہ ملنے کے معنی میں بولی جاتی ہے۔

Uploaded by: Fani Warraich

Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3181

Question 18

'Phagocytosis' (cell eating) is a primary function of which blood cells?

Erythrocytes
Platelets
Neutrophils and Macrophages✔️
B-Lymphocytes

Correct Answer Logic:

Neutrophils and macrophages are professional phagocytes that engulf and destroy pathogens.

Uploaded by: Fani Warraich

CISA QUESTION #6826

Question 19

An auditor reviews change control logs and finds that 40% of emergency changes lack proper post-implementation documentation. What is the PRIMARY risk?

Delayed documentation
Inability to support rollback and verify that emergency procedures were followed appropriately✔️
Increased administrative burden
Reduced change velocity

Correct Answer Logic:

Emergency changes still require documentation, though approval may be retroactive. Without post-implementation documentation, there is no evidence that changes were appropriate, no support for rollback if needed, and no way to verify that emergency procedures were followed correctly or that changes achieved intended results.

Uploaded by: Fani Warraich

Education QUESTION #10857

Question 20

Education confined to a formal educational institution is called:

Informal education
Non-formal education
Formal education✔️
Semi-formal education

Correct Answer Logic:

Formal education is structured, systematic, and institutionalised — occurring in schools, colleges, and universities within a planned curriculum, defined grades, certified teachers, and recognised qualifications. It is time-bound and follows official syllabi. Informal education occurs through life experiences; non-formal education is organised but outside formal institutions (e.g. adult literacy programmes, community education centres).

Uploaded by: Fani Warraich

More Options

Suggest a Question