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Psychology QUESTION #1463

Which type of validity is concerned with whether the test truly measures the concept it is intended to measure?

Content validity
Construct validity✔️
Criterion-related validity
Face validity

Correct Answer Logic:

Construct validity refers to the degree to which a test actually measures the theoretical construct (psychological concept) it purports to measure. For example, does an IQ test truly measure 'intelligence' as theoretically defined? Content validity concerns coverage of all relevant aspects of the construct; criterion-related validity concerns prediction of real-world outcomes; face validity is about surface appearance only.

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Nursing QUESTION #9134

Question 422

A gravida 2 para 1 at 39 weeks presents in active labor. Vaginal examination reveals: cervix 8 cm dilated, fully effaced, vertex at +1 station, occiput posterior position. After 2 hours, no progress is noted. What is the MOST likely cause of arrest of descent?

Cephalopelvic disproportion (CPD)
Occiput Posterior (OP) position causing malrotation✔️
Inadequate uterine contractions (hypotonic labor)
Cord prolapse

Correct Answer Logic:

Persistent Occiput Posterior (POP) position is a common cause of prolonged second stage and arrest of descent. In OP position:

The fetal head presents with a larger diameter to the pelvis: occipito-frontal diameter $\approx 11.5\,\text{cm}$ vs. sub-occipito-bregmatic $9.5\,\text{cm}$ in OA
Internal rotation from OP to OA requires $135°$ rotation (vs. $90°$ from OT, $45°$ from OA)
Causes: anthropoid/android pelvis, deflexed head

Management options:

Manual rotation to OA (Barton's maneuver)
Expectant management if maternal/fetal condition good
Instrumental delivery: forceps (Kielland's rotational forceps) or rotational vacuum
Cesarean section if rotation fails or fetal distress

CPD is less likely in a multigravida who delivered previously without CPD. Hypotonic labor would show weak contractions on partograph/CTG.

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Pakistan Affairs QUESTION #320

Question 423

In which district is the Shrine of Shah Abdul Latif Bhittai located?

Hyderabad
Matiari✔️
Dadu
Thatta

Correct Answer Logic:

The shrine of the famous Sufi poet is located in Bhit Shah, which falls under District Matiari.+1

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Pakistan Affairs QUESTION #7695

Question 424

The Senate of Pakistan is elected for the term of:

6 years✔️
4 years
5 years
None of these

Correct Answer Logic:

The Senate of Pakistan is elected for a term of six years, with half of its members retiring every three years. This ensures continuity and stability in the upper house of Pakistan's parliament.

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General Knowledge QUESTION #176

Question 425

Trump has threatened to take control of the Panama Canal due to:

Security issues
Fee Charges increase
Trade Dispute
None of these✔️

Correct Answer Logic:

This refers to political rhetoric regarding Chinese influence over the canal.

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Paper-I (Pharmaceutics II (Industrial and Quality Control) and Pharmaceutics III (Hospital and Community Pharmacy)) QUESTION #5738

Question 426

A 'Consultant Pharmacy' practice differs from a 'Community Pharmacy' because it focuses more on:

Actual dispensing of drugs
Medication procedure review✔️
Surgical supplies
Retail sales of cosmetics

Correct Answer Logic:

Consultant pharmacy focuses on procedure review rather than dispensing.

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English QUESTION #8375

Question 427

Commence means:

Arrange
Understand
Try
Begin✔️

Correct Answer Logic:

Commence means to begin.

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General Abilities QUESTION #2856

Question 428

Factorize: $x^2 - 5x + 6$

$(x-2)(x-3)$✔️
$(x+2)(x+3)$
$(x-1)(x-6)$
$(x-2)(x+3)$

Correct Answer Logic:

We need two numbers that multiply to 6 and add to $-5$: those are $-2$ and $-3$. So $x^2 - 5x + 6 = (x-2)(x-3)$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3233

Question 429

'Ascites' is the accumulation of fluid in the:

Lungs
Brain
Peritoneal (Abdominal) cavity✔️
Joints

Correct Answer Logic:

Ascites is often a complication of severe liver disease (cirrhosis).

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Pakistan Affairs QUESTION #286

Question 430

Why did Mahmud of Ghazni launch multiple invasions into India during the 11th century?

For territorial Expansion
For collecting economic resources✔️
For spreading Islam
For punishing Indian rulers

Correct Answer Logic:

His primary aim was to acquire the vast wealth of Indian temples to fund his Central Asian empire.

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Economics QUESTION #1704

Question 431

Pakistan's chronically low tax-to-GDP ratio — among the lowest in South Asia — is attributable to which combination of structural and institutional factors?

Disproportionate reliance on regressive indirect taxes
Agricultural sector exemptions and exclusion of large informal income from the tax net
Weak documentation of the tax base and inadequate enforcement capacity
All of these✔️

Correct Answer Logic:

Pakistan's tax-to-GDP ratio (historically around 9–11%) is explained by a confluence of factors: (1) heavy reliance on indirect taxes (sales tax, customs duties) rather than broad-based direct taxes; (2) constitutional and political exemptions for agriculture, despite its large economic size; (3) a large undocumented informal economy estimated at 35–40% of GDP; and (4) weak FBR enforcement, narrow withholding tax net, and rampant tax evasion by powerful sectors.

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Math Physics Chemistry Biology QUESTION #801

Question 432

Oxidation of $\text{NO}$ in air gives:

$\text{N}_2\text{H}_4$
$\text{NH}_4^+$
$\text{NH}_3$
None✔️

Correct Answer Logic:

Oxidation of NO in air gives $\text{NO}_2$: $2\text{NO} + \text{O}_2 \rightarrow 2\text{NO}_2$. Since $\text{NO}_2$ is not listed, the answer is None.

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Planning QUESTION #4949

Question 433

What is the main purpose of Participatory Rural Appraisal (PRA)?

To impose external solutions
To involve communities in planning decisions✔️
To conduct top-down surveys
To replace professional planners

Correct Answer Logic:

PRA involves local communities in identifying problems, analyzing situations, and planning solutions through participatory techniques, ensuring plans reflect genuine community needs and priorities.

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Chemistry QUESTION #5534

Question 434

Sucrose undergoes acid hydrolysis via first-order kinetics with a half-life of 3.33 h at 25°C. After 9 h, the fraction of sucrose remaining is $f$. Find the value of $\log_{10}\!\left(\dfrac{1}{f}\right)\times10^{-2}$ (nearest integer). [Given: $\ln 10 = 2.303$, $\ln 2 = 0.693$]

81✔️
90
135
27

Correct Answer Logic:

$k = \frac{0.693}{3.33} = 0.208\ h^{-1}$. After $t=9$ h: $\ln\left(\frac{1}{f}\right) = kt = 0.208\times9 = 1.872$. $\log_{10}\left(\frac{1}{f}\right) = \frac{1.872}{2.303} = 0.8127$. Answer $= 0.8127\times10^{-2}\times10^{2}\approx81\times10^{-2}$, so the value is $\approx 81\times10^{-2}$, meaning the answer = 81.

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Agronomy QUESTION #2098

Question 435

Soil salinity is measured as electrical conductivity of saturated paste extract ($EC_e$) in dS/m. A soil with $EC_e > 4$ dS/m is classified as saline because:

It exceeds the threshold for salt precipitation in the soil profile
Most sensitive crops (rice, beans, citrus) begin to show yield reduction above 4 dS/m — this threshold was established by the USDA salinity laboratory as the boundary between non-saline and saline soils affecting sensitive crop species✔️
All crops show complete yield loss at this salinity level
The osmotic pressure at 4 dS/m equals the root pressure of most crops

Correct Answer Logic:

The USDA classification: non-saline (<2 dS/m), slightly saline (2–4), moderately saline (4–8), strongly saline (8–16), very strongly saline (>16). The 4 dS/m threshold is agronomically significant because sensitive crops (beans, strawberry, rice) show measurable yield loss above this level. Tolerant crops (barley, cotton, sugar beet) withstand much higher levels — salt tolerance is crop-specific.

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General Knowledge QUESTION #4681

Question 436

Dan Quayle held which of the following positions?

Mexican footballer
American Politician✔️
Prime Minister of Brazil
Secretary General of NATO

Correct Answer Logic:

Dan Quayle served as the 44th Vice President of the United States under President George H.W. Bush (1989–1993).

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English QUESTION #8313

Question 437

Please speak in _______ English.

Plain✔️
Plane
Plan
None of these

Correct Answer Logic:

'Plain' means simple or clear.

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Chemistry QUESTION #5522

Question 438

Two water samples A and B have BOD (Biochemical Oxygen Demand) values of 10 and 20, respectively. Which statement is correct?

B is more polluted than A.✔️
A is fit for drinking, whereas B is not.
Both A and B are suitable for drinking.
A is more polluted than B.

Correct Answer Logic:

BOD (Biochemical Oxygen Demand) measures the amount of dissolved oxygen needed by microorganisms to decompose organic matter. A higher BOD means more organic pollution. Since BOD of B (20) > BOD of A (10), water B is more polluted. Note: For drinking water, BOD should be less than 5 ppm; both A and B are unsuitable for drinking.

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Math (Module-1) QUESTION #5479

Question 439

An isosceles right triangle has a hypotenuse of length $58$ inches. What is the perimeter, in inches, of this triangle?

$29\sqrt{2}$
$58\sqrt{2}$
$58 + 58\sqrt{2}$✔️
$58 + 116\sqrt{2}$

Correct Answer Logic:

Leg length $s = \frac{58}{\sqrt{2}} = 29\sqrt{2}$. Perimeter $= 2s + 58 = 2(29\sqrt{2}) + 58 = 58\sqrt{2} + 58$.

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Education QUESTION #6918

Question 440

'Chunking' as an instructional strategy in classroom management refers to which of the following practices?

Dividing a lesson into several 30-minute segments separated by transitions
Grouping new information by associations (e.g., by initial letters) and limiting new cognitive input to approximately 4–5 bits at a time to match working memory capacity✔️
Breaking the class into four groups to work on separate tasks simultaneously
Sequencing homework assignments from easy to difficult across a week

Correct Answer Logic:

Chunking is a cognitive strategy grounded in working memory research — the brain can process approximately 4 to 7 'chunks' of information at once. By organizing new content into associative groupings (e.g., vocabulary by letter or theme) and limiting the volume of new input per session, teachers reduce cognitive overload, which in turn reduces the frustration and off-task behavior that overload produces.

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