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General Knowledge QUESTION #9007

Question 2881

A stock that is highly in demand and considered low risk is called:

Blue eyed
Red share
Blue Chip✔️
Uncle's choice

Correct Answer Logic:

Blue chip stocks are reliable, well-established companies.

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MCQs Section QUESTION #4912

Question 2882

A recent New York Times editorial criticized the city's election board for, first of all, failing to replace outmoded voting machines prone to breakdowns, and _____ investigate allegations of corruption involving board members.

secondarily, for their failure to
secondly, for their failure to
secondly, that they failed and did not
second, for failing to✔️

Correct Answer Logic:

Parallel structure requires matching 'for failing…to replace' with 'for failing to investigate.' 'Second' is the preferred GMAT parallel list marker. Options A and B use 'their failure to,' which is not parallel with the gerund 'failing.' Option C uses 'that they failed' which also breaks the parallel.

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MBBS QUESTION #10292

Question 2883

Conn's syndrome (primary hyperaldosteronism, typically from an adrenal adenoma) classically produces which combination of biochemical findings?

Hypertension, hypokalemia, and metabolic alkalosis, with suppressed plasma renin activity✔️
Hypotension with hyperkalemia
Elevated plasma renin with low aldosterone
Entirely normal electrolytes with isolated hypertension and no biochemical abnormality

Correct Answer Logic:

Autonomous aldosterone excess drives renal sodium retention (hypertension) with increased potassium and hydrogen ion excretion (hypokalemia and metabolic alkalosis); the resulting volume expansion suppresses renin-angiotensin activity, giving the classic biochemical triad plus low renin that distinguishes primary from secondary hyperaldosteronism.

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Home Economics QUESTION #6237

Question 2884

Which weave is known for its characteristic diagonal lines on the fabric surface?

Plain weave
Satin weave
Twill weave✔️
Basket weave

Correct Answer Logic:

Twill weave, commonly seen in denim, creates a distinct diagonal rib or pattern.

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General Knowledge QUESTION #8859

Question 2885

One horsepower is equal to how many watts?

746 watts✔️
780 watts
785 watts
1000 watts

Correct Answer Logic:

1 HP = 746 watts.

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MCQs Section QUESTION #5087

Question 2886

ریختہ کے معانی کیا ہیں؟

بیان کرنا
ایجاد کرنا
خوش ہونا
ان میں سے کوئی نہیں✔️

Correct Answer Logic:

ریختہ فارسی لفظ ہے جس کے معنی ہیں گرا ہوا، بکھرا ہوا۔ اردو شاعری کا قدیم نام ریختہ تھا۔

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English QUESTION #2669

Question 2887

Find the word opposite in meaning to: 'HOSTILE'?

Friendly✔️
Angry
Violent
Silent

Correct Answer Logic:

'Hostile' means showing opposition or dislike; 'friendly' is the antonym.

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Academic/Professional (Social Sciences) QUESTION #10146

Question 2888

If a government reduces school fees but enrolment still stagnates due to child labour demands at home, this best illustrates that:

Economic policy alone determines enrolment
Structural/systemic socio-economic forces beyond fees also constrain education access✔️
Education policy is irrelevant to enrolment
Fees are the only barrier to enrolment

Correct Answer Logic:

This shows enrolment is shaped by broader socio-economic constraints, not fees alone.

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Agronomy QUESTION #2076

Question 2889

The Vavilovian mimicry in weeds is an evolutionary adaptation where:

Weeds produce toxins that mimic crop plant hormones
Weeds evolve morphological resemblance to the crop they infest (similar leaf shape, height, seed size/color) making them difficult to distinguish and remove by hand weeding or seed cleaning — driven by the selection pressure of repeated hand removal of distinctly different-looking plants✔️
Weeds develop herbicide resistance by mimicking the target enzyme of the herbicide
Weed seeds mimic crop seeds in dormancy requirements to synchronize germination

Correct Answer Logic:

Vavilovian mimicry is convergent evolution driven by human selection pressure: in hand-weeded or hand-harvested crops, weeds that morphologically resemble the crop escape removal and are inadvertently harvested and re-sown with crop seed. Classic examples: barnyard grass mimicking rice, rye mimicking wheat, Camelina mimicking flax. It is strongest in crops with long histories of hand weeding.

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English Literature QUESTION #10705

Question 2890

In which novel did D. H. Lawrence deal with the psychological phenomenon known as the "Oedipus Complex"?

Lady Chatterley's Lover
Sons and Lovers✔️
The Trespasser
The Boy in the Bush

Correct Answer Logic:

Sons and Lovers (1913) is D. H. Lawrence's semi-autobiographical novel that explores the Oedipus Complex — Paul Morel's intense, consuming relationship with his mother Gertrude, which prevents him from forming healthy romantic relationships with other women. The novel is widely considered a classic study of Oedipal dynamics in literature, drawing on Freudian concepts of maternal attachment and sexual development.

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Civil Engineering QUESTION #6650

Question 2891

What is the primary advantage of 'Post-tensioning' over 'Pre-tensioning' in bridge construction?

It requires less steel
It allows for curved tendon profiles and field assembly of segments✔️
It eliminates all prestress losses
It does not require end anchorages

Correct Answer Logic:

Post-tensioning is versatile, allowing tendons to be draped in specific shapes to counter load-induced moments and enabling the joining of precast segments on-site.

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Boilers Mechanical Engineering QUESTION #2535

Question 2892

The scalar triple product $\mathbf{A} \cdot (\mathbf{B} \times \mathbf{C})$ geometrically represents:

The magnitude of the vector $\mathbf{B} \times \mathbf{C}$
The volume of the parallelepiped formed by $\mathbf{A}$, $\mathbf{B}$, $\mathbf{C}$✔️
The area of the triangle formed by the three vectors
The dot product of $\mathbf{B}$ and $\mathbf{C}$ projected onto $\mathbf{A}$

Correct Answer Logic:

The scalar triple product $\mathbf{A}\cdot(\mathbf{B}\times\mathbf{C})$ equals the volume of the parallelepiped whose three edges are represented by vectors $\mathbf{A}$, $\mathbf{B}$, and $\mathbf{C}$. If the result is zero, the vectors are coplanar.

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Mathematics QUESTION #6045

Question 2893

Find the number of common tangents to the circles $x^2+y^2-4x-6y-12=0$ and $x^2+y^2+6x+18y+26=0$.

1
2
3✔️
4

Correct Answer Logic:

Circle 1: centre $C_1=(2,3)$, $r_1=\sqrt{4+9+12}=5$.

Circle 2: centre $C_2=(-3,-9)$, $r_2=\sqrt{9+81-26}=8$.

Distance $|C_1C_2|=\sqrt{(2+3)^2+(3+9)^2}=\sqrt{25+144}=\sqrt{169}=13$.

Since $|C_1C_2|=13=r_1+r_2=5+8$, the circles are externally tangent. Externally tangent circles have exactly 3 common tangents.

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Boilers Mechanical Engineering QUESTION #2475

Question 2894

The Grübler–Dobrovolski formula for the mobility (DOF) $M$ of a general spatial mechanism of family $f$ with $n$ movable links and kinematic pairs of class $j$ is:

$M = 3n - 2c_5 - c_4$
$M = 6n - \sum_{j=f+1}^{5}(j-f)c_j$
$M = (6-f)n - \sum_{j=f+1}^{5}(j-f)c_j$✔️
$M = 6n - 5c_5 - 4c_4$

Correct Answer Logic:

The Dobrovolski formula is $M=(6-f)n-\sum_{j=f+1}^{5}(j-f)c_j$, where $f$ is the family number, $n$ is the number of movable links, and $c_j$ is the number of kinematic pairs of class $j$. For planar mechanisms $f=3$, this reduces to $M=3n-2c_5-c_4$.

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Math Physics Chemistry Biology QUESTION #748

Question 2895

Unit of longitudinal strain is:

m
Unit less✔️
1/m
None of these

Correct Answer Logic:

Strain = change in length / original length. Both are in meters so strain is dimensionless (unit less).

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Math Physics Chemistry Biology QUESTION #539

Question 2896

Which of the following are called placental mammals?

Prototheria
Eutheria✔️
Metatheria
All of these

Correct Answer Logic:

Eutheria are placental mammals

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Aptitude QUESTION #10968

Question 2897

The concept of negative space in architecture refers to:

Basement or underground spaces in a building
The empty space around and between building forms that shapes perception✔️
Spaces that receive no natural light
Outdoor spaces that are economically unproductive

Correct Answer Logic:

Negative space (also called void or counter-form) in architecture and design refers to the unoccupied space around, between, and within built forms.

It is as important as positive (built) space in defining the quality of architecture:

The courtyard of a building is negative space that organises surrounding rooms.
The gap between two buildings creates a negative space that functions as a street or plaza.
Frank Lloyd Wright's concept: 'The reality of a building is the space within.'

Understanding negative space is fundamental to spatial composition in architecture and urban design.

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Biology QUESTION #7267

Question 2898

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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Biology Zoology Botany QUESTION #10832

Question 2899

The Watson-Crick model of DNA proposed that DNA replication is:

Conservative
Duplicated
Semi-conservative✔️
None of these

Correct Answer Logic:

Watson and Crick suggested in their original 1953 paper that DNA replication was likely semi-conservative — each new DNA molecule would consist of one parental strand and one newly synthesised strand. This was experimentally confirmed by Meselson and Stahl (1958) using ¹⁵N/¹⁴N density-gradient centrifugation. In conservative replication (disproved), both parental strands would stay together; in dispersive (also disproved), fragments of old and new DNA would mix.

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MCQs Section QUESTION #5253

Question 2900

یہ آرزو تھی تجھے گل کے روبرو کرتے، ہم اور بلبلِ بے تاب گفتگو کرتے، یہ شعر کس کا ہے؟

غالب
حیدر علی آتش✔️
ناصر کاظمی
ان میں سے کوئی نہیں

Correct Answer Logic:

یہ شعر حیدر علی آتش کا ہے۔

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