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Physics QUESTION #7078

A pipe that is open at both ends has a fundamental frequency $f$ in the air. If the pipe is submerged vertically in water such that exactly half of its length is underwater, what is the new fundamental frequency of the air column?

$\frac{3f}{4}$
$2f$
$f$✔️
$\frac{f}{2}$

Correct Answer Logic:

An open pipe of length $L$ has $f = \frac{v}{2L}$. When half-submerged, it becomes a closed pipe of length $L/2$. The fundamental frequency of a closed pipe is $f' = \frac{v}{4(L_{new})} = \frac{v}{4(L/2)} = \frac{v}{2L}$. Therefore, $f' = f$.

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Disaster Management QUESTION #6521

Question 1302

Which approach to infrastructure retrofitting demonstrates the most cost-effective long-term resilience strategy?

Retrofitting all buildings simultaneously
Prioritizing critical public facilities based on risk assessments and conducting quick retrofitting for highly vulnerable structures✔️
Waiting for post-disaster reconstruction opportunities
Focusing only on new construction

Correct Answer Logic:

Section 8.1 prioritizes retrofitting critical facilities (schools, hospitals, emergency centers) based on risk assessments, with provisions for quick retrofitting of highly vulnerable infrastructure. This risk-informed, phased approach maximizes impact with limited resources while ensuring essential services remain operational during disasters.

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General Abilities QUESTION #7658

Question 1303

A drink contains 20% mango juice and the rest is apple juice. What is the ratio of mango juice to apple juice?

$4 : 1$
$1 : 4$✔️
$1 : 20$
None of these

Correct Answer Logic:

If the drink contains 20% mango juice, then it contains 80% apple juice (100% - 20% = 80%). The ratio of mango to apple juice is $20 : 80 = 1 : 4$. This means for every 1 part mango juice, there are 4 parts apple juice.

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Nursing QUESTION #9167

Question 1304

In nursing staff scheduling, the cyclic scheduling method refers to:

Scheduling based on seniority
A fixed, repeating pattern of work schedules✔️
Scheduling that changes every week
Random assignment of shifts

Correct Answer Logic:

Cyclic Scheduling in nursing management is a method where a fixed pattern of work schedules repeats in cycles (e.g., every 4, 6, or 8 weeks). Advantages include:

Fairness — all staff rotate equally through shifts
Predictability — staff can plan personal activities in advance
Reduced administrative burden for Head Nurse
Improved staff satisfaction and retention

As a Head Nurse, choosing the right scheduling method directly impacts nursing staff morale, workload distribution, and patient care quality.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3229

Question 1305

'Edema' (tissue swelling) can be caused by:

Increased capillary hydrostatic pressure
Decreased plasma colloid osmotic pressure
Lymphatic obstruction
All of these✔️

Correct Answer Logic:

Any imbalance in Starling forces or lymph drainage can lead to fluid accumulation.

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Logical Reasoning QUESTION #4428

Question 1306

Which of the following is the main cause of accidents involving equipment?

Overconfidence
Insufficient maintenance✔️
Fatigue
Poor training

Correct Answer Logic:

Insufficient or improper maintenance of equipment is the primary cause of equipment-related accidents in workplace safety studies. Poorly maintained equipment is more likely to malfunction or fail, leading to accidents.

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CISA QUESTION #6827

Question 1307

In evaluating an organization's business continuity plan, an auditor finds that Recovery Time Objective (RTO) is 4 hours but current recovery capabilities require 12 hours. What should be the auditor's PRIMARY recommendation?

Update the BCP document to reflect 12-hour RTO
Assess the gap between RTO requirement and actual capability then develop remediation plan✔️
Reduce RTO to 2 hours
Cancel the BCP

Correct Answer Logic:

When a gap exists between required and actual recovery capabilities, the organization faces unmitigated risk. The auditor should highlight this gap and recommend analysis of whether to: improve capabilities to meet the 4-hour RTO, accept the risk of longer recovery, or adjust business requirements. Simply updating documentation without addressing the gap provides no risk reduction.

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Biology QUESTION #7267

Question 1308

Cellulose is the major component of cell walls of:

Pseudomonas
Saccharomyces
Pythium✔️
Xanthomonas

Correct Answer Logic:

Pythium is an oomycete (water mould) whose cell wall is composed primarily of cellulose (and glucans), unlike true fungi which have chitin. Pseudomonas and Xanthomonas are bacteria with peptidoglycan walls. Saccharomyces is a yeast with chitin and glucan walls.

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Math Physics Chemistry Biology QUESTION #7762

Question 1309

Natural killer (NK) cells are directly activated by which substance?

Free radicals
Hydrogen peroxide
Interferons✔️
Oxygen

Correct Answer Logic:

Interferons (produced in response to viral infections) activate NK cells, enhancing their cytotoxic activity against virus-infected cells and tumor cells.

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General Science and Ability QUESTION #245

Question 1310

In fish liver oil there is:

Vitamin A only
Vitamin D only
Vitamin A and vitamin E
Vitamin A and Vitamin D✔️

Correct Answer Logic:

Fish liver oil is a potent source of both fat-soluble vitamins A and D.

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Chemistry QUESTION #4338

Question 1311

The IUPAC name of $(CH_3)_3CCH_2Br$ is:

1-bromopentane
1-bromo-2,2-trimethylethane
1-bromo-2,2-dimethylpropane✔️
2-bromopentane

Correct Answer Logic:

The parent chain has 3 carbons (propane). There are two methyl groups on carbon 2, and a bromo group on carbon 1. IUPAC name: 1-bromo-2,2-dimethylpropane.

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Islamic Studies QUESTION #205

Question 1312

Before Islam, which religion was predominant in the Arabian Peninsula?

Christianity
Judaism
Polytheism✔️
Zoroastrianism

Correct Answer Logic:

Most tribes were polytheistic, worshiping various idols in the Kaaba.

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Physics QUESTION #996

Question 1313

Which one is the correct dimensional formula for capacitance in Farad? ($M, L, T, C$ stand for mass, length, time and charge):

$[F] = [C^2 M^{-1} L^{-2} T^2]$✔️
$[F] = [C^2 M^{-2} L^2 T^2]$
$[F] = [CM^{-2}L^{-2}T^{-2}]$
$[F] = [CM^{-1}L^{-2}T^2]$

Correct Answer Logic:

Capacitance $C = \frac{Q}{V} = \frac{Q}{\frac{W}{Q}} = \frac{Q^2}{W}$. Dimensions: $\frac{C^2}{M L^2 T^{-2}} = C^2 M^{-1} L^{-2} T^2$.

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Urdu QUESTION #1411

Question 1314

منٹو کے افسانوں کے پہلے مجموعے کا نام بتائیے؟

منٹو کے افسانے
دھواں
چغد
آتش پارے✔️

Correct Answer Logic:

سعادت حسن منٹو (1912–1955) کے افسانوں کا پہلا مجموعہ ''آتش پارے'' 1936 میں شائع ہوا۔ اس کے بعد ''منٹو کے افسانے''، ''دھواں''، ''سیاہ حاشیے'' اور دیگر مجموعے آئے۔ منٹو اردو افسانے کے بے مثال فنکار تھے جنہوں نے تقسیم کے المیے اور انسانی نفسیات کو بے باکی سے بیان کیا۔

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English QUESTION #512

Question 1315

DOZE

Dogged
Diet
Sleep✔️
Medicine to be taken

Correct Answer Logic:

Doze means to sleep lightly

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Verbal Reasoning QUESTION #8107

Question 1316

Compare the two quantities below.

Column A: $(x-1)(x)(x+1)$

Column B: $(x)(x)(x)$

Column A is greater
Column B is greater
The two quantities are equal
The relationship cannot be determined from the information given✔️

Correct Answer Logic:

Column A: $(x-1)(x)(x+1) = x(x^2-1) = x^3 - x$

Column B: $x \cdot x \cdot x = x^3$

Difference: B $-$ A $= x^3 - (x^3 - x) = x$.

If $x > 0$: Column B is greater
If $x = 0$: both equal 0 (equal)
If $x < 0$: Column A is greater

Since no restriction is placed on $x$, the relationship cannot be determined from the information given.

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Nursing QUESTION #9254

Question 1317

A nurse assesses a 6-month-old infant. Which developmental milestone is EXPECTED and NORMAL at this age according to Denver Developmental Screening?

Walks alone
Says 2–3 word sentences
Sits with support and transfers objects hand to hand✔️
Pincer grasp and stands holding furniture

Correct Answer Logic:

Denver Developmental Screening Test (DDST-II) milestones at 6 months:

Domain	Expected at 6 Months
Gross Motor	Sits with support, rolls over (front to back), bears weight on legs
Fine Motor	Transfers objects hand to hand, reaches for objects, raking grasp
Language	Babbles, monosyllables (ba, da, ma), laughs, squeals
Personal-Social	Recognizes faces, smiles spontaneously, feeds self cracker

Key milestones timeline:

3 months: Head control, social smile
6 months: Sits with support, transfers objects ✓
9 months: Stands holding furniture, pincer grasp developing
12 months: Walks with support, 1–2 words
18 months: Walks alone, 10+ words
24 months: 2–3 word sentences, runs

Red flags at 6 months: No head control, no social smile, not reaching for objects — warrant immediate developmental evaluation.

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Nursing QUESTION #9278

Question 1318

A 7-year-old child is screened for worm infestation. He complains of perianal itching at night. Microscopy of adhesive tape pressed against the perianal region at night reveals eggs. The MOST likely organism and treatment is:

Ascaris lumbricoides; albendazole 400 mg single dose
Enterobius vermicularis (pinworm); mebendazole 100 mg single dose, repeat after 2 weeks✔️
Trichuris trichiura; mebendazole 200 mg twice daily for 3 days
Strongyloides stercoralis; ivermectin single dose

Correct Answer Logic:

Enterobiasis (Pinworm/Threadworm) caused by Enterobius vermicularis — most common helminth infection in school-age children worldwide.

Key features:

Perianal/perineal pruritus at night (female migrates to perianal region at night to deposit eggs)
Restless sleep, irritability
Vaginal pruritus in girls (retrograde migration)
Diagnosis: Scotch tape/adhesive tape test — applied perianally early morning before bathing or defecation → microscopy reveals ova

Treatment:

Mebendazole 100 mg single dose OR Albendazole 400 mg single dose
Repeat dose after 2 weeks (kills hatched worms from eggs not affected by first dose)
Treat ALL household members simultaneously (highly contagious — fecal-oral + auto-inoculation)

Hygiene measures:

Short fingernails, frequent handwashing
Wash underwear/bedlinen in hot water
Avoid nail-biting

Albendazole dosing in helminths: $400\,\text{mg}$ single dose (Ascaris, hookworm, Enterobius); $400\,\text{mg}$ daily × 3 days (Trichuris)

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English QUESTION #8419

Question 1319

I agreed _______ my brother's proposal and went with him.

With
Of
To✔️
On

Correct Answer Logic:

'Agreed to' a proposal is correct.

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Administration QUESTION #9578

Question 1320

A supply chain manager notices that her 18-month demand forecast is consistently more accurate for the first 3 months and increasingly wrong beyond month 6. Which fundamental characteristic of forecasting does this illustrate?

Forecasts are always wrong — any forecast that extends beyond one period contains irreducible error
Forecast accuracy decreases as the time horizon increases — longer-range forecasts carry greater cumulative uncertainty✔️
Forecasting bias — systematic overestimation or underestimation skews all forecasts equally regardless of horizon
Causal forecasting failure — time-series models are inappropriate for supply chain demand and should be replaced with regression models

Correct Answer Logic:

One of the fundamental characteristics of forecasting is that accuracy deteriorates as the time horizon extends. Uncertainty compounds with each additional period — factors that are predictable in the short run (seasonality, known orders) become increasingly unpredictable over longer horizons. This is why supply chain managers use rolling forecasts and maintain buffer inventory for long-range periods.

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