Reading Mode - Questions

Physics QUESTION #7090

Question 4021

A particle moves in a circular orbit under a central force $F \propto R^{-n}$. If the period is $T$, then:

$T \propto R^{(n+1)/2}$✔️
$T \propto R^{n/2}$
$T \propto R^{3/2}$
$T \propto R^{\frac{n}{2}+1}$

Correct Answer Logic:

Centripetal force $F = \frac{mv^2}{R} \propto \frac{1}{R^n}$.

$v^2 \propto \frac{1}{R^{n-1}} \implies v \propto R^{(1-n)/2}$
$T = \frac{2\pi R}{v} \propto \frac{R}{R^{(1-n)/2}} = R^{1 - (\frac{1-n}{2})} = R^{(n+1)/2}$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3373

Question 4022

'Fomites' are:

Live insects that carry disease
Inanimate objects that can transmit infection (like towels or door knobs)✔️
Types of bacteria
Small viruses

Correct Answer Logic:

Fomite transmission is a common way diseases spread in shared spaces.

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Therapeutics and Patient Care QUESTION #3911

Question 4023

What is the primary mechanism by which corticosteroids produce a beneficial therapeutic effect in acute severe asthma?

They cause acute bronchodilation
They reduce the inflammatory response✔️
They suppress precipitating infections
They prevent mediator release from mast cells

Correct Answer Logic:

Corticosteroids exert their anti-asthmatic effect by broadly suppressing the airway inflammatory response, reducing oedema, mucus production, and inflammatory cell infiltration, thereby improving airflow.

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Reading and Writing (Module-1) QUESTION #10392

Question 4024

The museum's newest exhibit was criticized as ------- , offering little beyond a rehash of ideas already displayed elsewhere.

innovative
derivative✔️
provocative
original

Correct Answer Logic:

An exhibit that is a 'rehash of ideas already displayed' is unoriginal, or 'derivative.'

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Administration QUESTION #9547

Question 4025

F.W. Taylor is called the 'Father of Scientific Management' while Henri Fayol is called the 'Father of Modern Management Theory.' Their contributions are often confused. What is the most precise distinction between their respective contributions?

Taylor focused on shop-floor task efficiency through scientific study of work; Fayol developed universal principles for the entire administrative and managerial enterprise✔️
Taylor developed bureaucratic theory with impersonality and hierarchical authority; Fayol focused on motivational factors and human relations in the workplace
Taylor emphasized planning and policy formulation; Fayol emphasized the execution and technical dimensions of government programmes
Taylor's work applied to government organizations; Fayol's work applied exclusively to private industrial organizations

Correct Answer Logic:

Taylor's scientific management operated at the operational/shop-floor level — optimizing individual tasks through time-and-motion study. Fayol worked at the administrative/executive level, developing 14 universal principles (division of work, unity of command, span of control, etc.) applicable to any organization. Their contributions are complementary but operate at different levels of analysis.

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Logical Reasoning QUESTION #3948

Question 4026

Interestingly, it often proves more challenging to compose a narrative about the _____ than it is to describe the _____ and the unfamiliar.

specific...foreign✔️
abstract...prosaic
commonplace...exotic
simple...routine

Correct Answer Logic:

2

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Islamic Studies QUESTION #351

Question 4027

Jerusalem was conquered in the period of:

Hazrat Abu Bakr (RA)
Hazrat Umar (RA)✔️
Hazrat Usman (RA)
Hazrat Ali (RA)

Correct Answer Logic:

Jerusalem was surrendered to Caliph Hazrat Umar (RA) in 637 AD.

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Math Physics Chemistry Biology QUESTION #7784

Question 4028

Depolarization of the postsynaptic membrane is caused by diffusion of which ion?

Calcium ions
Chloride ions
Potassium ions
Sodium ions✔️

Correct Answer Logic:

Depolarization occurs when Na⁺ enters the postsynaptic neuron (excitatory postsynaptic potential). Cl⁻ influx causes hyperpolarization (inhibitory). Ca²⁺ triggers neurotransmitter release, not directly depolarization.

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MCQs Section QUESTION #5064

Question 4029

'پتا پتا بوٹا بوٹا' والا شعر کس کا ہے؟

علامہ اقبال
میر تقی میر✔️
غالب
ان میں سے کوئی نہیں

Correct Answer Logic:

پتا پتا بوٹا بوٹا حال ہمارا جانے ہے، یہ مشہور شعر میر تقی میر کا ہے۔

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MCQs Section QUESTION #4899

Question 4030

A large rise in the number of housing starts in the coming year should boost new construction dollars by several billion dollars, _____ than five years ago.

making the construction industry's economic health much more robust than five years ago
and make the construction industry's economic health much more robust than five years ago
making the construction industry's economic health much more robust than it was five years ago✔️
to make the construction industry's economic health much more robust than five years ago

Correct Answer Logic:

The comparison requires 'than it was five years ago' to logically compare the industry's current health to its past health — not to the time period itself. Options A, B, and D omit the verb 'was,' creating an illogical comparison between health and a point in time.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3599

Question 4031

Volatile oils are also known as 'Essential Oils' because:

They are essential for life
They possess the 'essence' or odor of the plant✔️
They are made of proteins
They never evaporate

Correct Answer Logic:

They are volatile in steam and provide the characteristic aroma of the plant.

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Constitutional Law QUESTION #5834

Question 4032

The President orders the Secretary of Commerce to take over all domestic steel mills to ensure production during a national labor strike, citing his powers as Commander in Chief. Congress has not authorized this action. Is the order valid?

Yes, because the President has inherent 'emergency powers' to protect the economy.
Yes, because the President is the Commander in Chief and steel is necessary for defense.
No, because the President’s power is at its 'lowest ebb' when acting against the implied or express will of Congress.✔️
No, because the 5th Amendment prohibits the taking of private property without just compensation.

Correct Answer Logic:

In Youngstown Sheet & Tube Co. v. Sawyer, the Court held that the President cannot use his Commander in Chief powers to seize domestic private property during a labor dispute without congressional authorization.

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Chemistry QUESTION #4344

Question 4033

The element with smallest value of ionization energy is:

U
Al
Ca
Ba✔️

Correct Answer Logic:

Ionization energy decreases down a group and across a period (left to right increases). Ba (Barium) is in Group 2, Period 6, so it has the lowest ionization energy among the given options.

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Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5775

Question 4034

Omeprazole heals peptic ulcers by blocking:

H2 Histamine Receptors
Muscarinic Receptors
The H+/K+ ATPase (Proton Pump)✔️
Prostaglandin Receptors

Correct Answer Logic:

PPIs like Omeprazole irreversibly block the gastric proton pump.

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Verbal Reasoning QUESTION #8192

Question 4035 (Select all that apply)

Mary purchased a book whose price plus a 4% sales tax equaled the total amount she paid. She gave the cashier a $10 bill and received correct change of less than $3.00. Which of the following statements must be true? Select all that apply.

The price of the book was less than $9.50
The price of the book was greater than $6.90
The sales tax was less than $0.45✔️
The sales tax was greater than $0.50

Correct Answer Logic:

Let the price of the book $= p$. Total paid $= 1.04p$.

She paid $10 and received change less than $3.00, meaning total paid was more than $7.00:

$1.04p > 7.00 \Rightarrow p > 6.73$

She also received some change, so total paid $< \$10.00$:

$1.04p < 10.00 \Rightarrow p < 9.615$

So $6.73 < p < 9.615$. Now check each statement:

Statement A: $p < \$9.50$ — Not necessarily, since $p$ can be up to $9.615$. ✗
Statement B: $p > \$6.90$ — Not necessarily, $p$ can be $6.80$ (giving change $\approx \$2.93 < \$3.00$). ✗
Statement C: Sales tax $= 0.04p < 0.04 \times 9.615 \approx \$0.385 < \$0.45$. This is always true within the valid range. ✓
Statement D: Tax $> \$0.50$ would require $p > 12.50$, which is impossible here. ✗

Only Statement C must be true.

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Nursing QUESTION #9140

Question 4036

A primigravida at 41+3 weeks is admitted for post-term pregnancy management. Bishop score is 4. CTG is reactive. Amniotic fluid index (AFI) is 6 cm. What is the MOST appropriate next step?

Discharge home with daily kick counts only
Emergency cesarean section due to post-term status
Cervical ripening with prostaglandins followed by induction of labor✔️
Conservative management until 42 weeks with twice-weekly NST

Correct Answer Logic:

Post-term Pregnancy Management ($\geq 42$ weeks; post-dates $\geq 41$ weeks):

This patient:

41+3 weeks = post-dates (risk period begins)
Bishop score 4 = unfavorable cervix (score $\leq 6$)
AFI 6 cm = borderline oligohydramnios (normal: $8{-}24\,\text{cm}$; oligohydramnios: $\leq 5\,\text{cm}$)
Reactive CTG = reassuring currently

Risks of post-term pregnancy:

Placental insufficiency, meconium aspiration
Macrosomia, shoulder dystocia
Oligohydramnios, cord compression
Perinatal mortality increases after 41 weeks

Management: Most guidelines recommend induction of labor by 41–42 weeks. With unfavorable cervix (Bishop score 4), cervical ripening first (Prostaglandin E₂ gel/insert or misoprostol) then oxytocin induction.

AFI trending down is additional reason not to wait further. Conservative management is inappropriate here.

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