Reading Mode - Questions

Chemistry QUESTION #1006

From the energy profile diagram with activation complex at the top, $E_1$ is the energy difference from reactant to activated complex and $E_2$ is the energy difference from activated complex to product. Choose the correct option:

Activation energy of both forward and backward reaction is $E_1+E_2$ and reactant is more stable than product.
Activation energy of forward reaction is $E_1+E_2$ and product is less stable than reactant.✔️
Activation energy of backward reaction is $E_1$ and product is more stable than reactant.
Activation energy of forward reaction is $E_1+E_2$ and product is more stable than reactant.

Correct Answer Logic:

From the diagram: $E_a(\text{forward}) = E_1 + E_2$ (from reactant to activated complex). The product lies lower than the reactant (exothermic), so product is more stable. $E_a(\text{backward}) = E_2$ only. So forward $E_a = E_1+E_2$ and product is less stable than reactant is incorrect — product IS more stable. Answer key gives option (2): $E_a(\text{forward}) = E_1+E_2$ and product is less stable is incorrect but this matches answer 55 = (2) per key.

Uploaded by: Fani Warraich

Civil / Architecture QUESTION #2370

Question 3142

In the context of Occupational Health and Safety (OHS), the Hierarchy of Controls for managing workplace hazards lists five levels in order of effectiveness. Which sequence is correct from MOST to LEAST effective?

Administrative controls → PPE → Substitution → Engineering controls → Elimination
Elimination → Substitution → Engineering controls → Administrative controls → PPE✔️
PPE → Administrative controls → Engineering controls → Substitution → Elimination
Engineering controls → Elimination → PPE → Substitution → Administrative controls

Correct Answer Logic:

The Hierarchy of Controls from most to least effective is: (1) Elimination — physically remove the hazard; (2) Substitution — replace the hazard with something safer; (3) Engineering controls — isolate people from the hazard (guards, ventilation); (4) Administrative controls — change the way people work (procedures, training, schedules); (5) PPE — protect the worker with personal protective equipment. PPE is the last resort as it does not remove the hazard.

Uploaded by: Fani Warraich

Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3098

Question 3143

Which heart chamber pumps oxygenated blood to the entire body via the Aorta?

Right Atrium
Right Ventricle
Left Atrium
Left Ventricle✔️

Correct Answer Logic:

The Left Ventricle has the thickest muscular wall to generate high pressure for systemic circulation.

Uploaded by: Fani Warraich

Accounting & Finance QUESTION #6181

Question 3144

A 'Deferred Annuity' is another name for:

Annuity Due
Ordinary Annuity
Perpetuity✔️
Lease Rental

Correct Answer Logic:

Lesson 07 explicitly states that an ordinary annuity is also known as a deferred annuity.

Uploaded by: Fani Warraich

Civil / Architecture QUESTION #2365

Question 3145

In the design of steel plate girders, the proportioning of the web panel to prevent shear buckling without tension field action requires the shear buckling coefficient $k_v$. For an unstiffened web with $a/h \to \infty$ (no transverse stiffeners), the value of $k_v$ used in calculating the critical shear stress is:

4.0
5.34✔️
6.34
2.0

Correct Answer Logic:

For a web plate with no transverse stiffeners (pure shear panel, $a/h \to \infty$), the shear buckling coefficient is $k_v = 5.34$. When transverse stiffeners are present with aspect ratio $a/h \leq 1$: $k_v = 4.0 + \dfrac{5.34}{(a/h)^2}$. The critical shear stress is $F_{cr} = \dfrac{k_v \pi^2 E}{12(1-\nu^2)(h/t_w)^2}$. AISC uses $k_v = 5.34$ as the baseline for unstiffened webs.

Uploaded by: Fani Warraich

Islamic Studies QUESTION #8226

Question 3146

What caused Hazrat Usman's (R.A.) death?

he died in a battlefield
he was martyred by rebels✔️
he died a natural death
None of the above

Correct Answer Logic:

Hazrat Usman (RA) was martyred by rebels on 18 Dhul Hijjah 35 AH (June 656 CE) while reciting the Quran in his home in Medina. He was 82 years old and had been Caliph for 12 years. A group of rebels from Egypt, Kufa, and Basra laid siege to his house and eventually broke in and killed him. His martyrdom was a tragic event that led to the first major civil conflict (fitna) in Islamic history.

Uploaded by: Fani Warraich

English QUESTION #8304

Question 3147

You _______ respect your parents and teachers.

Should✔️
Would
Would have
Should have

Correct Answer Logic:

'Should' expresses moral obligation.

Uploaded by: Fani Warraich

General Knowledge QUESTION #4471

Question 3148

_____ is the author of “Essay on Population (1798)”.

Thomas Malthus✔️
Ester Boserup
Garret Hardin
None of these

Correct Answer Logic:

Thomas Malthus authored 'An Essay on the Principle of Population' in 1798.

Uploaded by: Fani Warraich

Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3625

Question 3149

Which of the following is a common 'Inhalant Allergen'?

Peanut butter
Pollen✔️
Penicillin
Bee sting

Correct Answer Logic:

Pollens, dust, and molds are common allergens taken in through breathing.

Uploaded by: Fani Warraich

MBBS QUESTION #10194

Question 3150

A 20-year-old presents with pain that began periumbilically and later localized to the right iliac fossa, with maximal tenderness at McBurney's point. This anatomical landmark corresponds to the position of the:

Ileocaecal valve
Base of the appendix✔️
Hepatic flexure of the colon
Sigmoid colon

Correct Answer Logic:

McBurney's point, located at the junction of the lateral and middle thirds of a line from the anterior superior iliac spine to the umbilicus, overlies the base of the appendix in most individuals and is classically tender in acute appendicitis.

Uploaded by: Fani Warraich

General Knowledge QUESTION #8969

Question 3151

The Earth is closest to the Sun (perihelion) in which month?

January✔️
June
July
September

Correct Answer Logic:

Perihelion occurs in early January.

Uploaded by: Fani Warraich

Nursing QUESTION #9297

Question 3152

The priority nursing diagnosis for a patient with an acute asthma attack is:

Risk for infection
Impaired gas exchange related to bronchoconstriction✔️
Deficient knowledge about asthma medications
Activity intolerance

Correct Answer Logic:

In acute asthma, bronchoconstriction, mucosal edema, and mucus plugging all lead to airway obstruction and impaired gas exchange — the immediate life-threatening problem.

Nursing priority hierarchy in asthma (ABC framework):

Impaired gas exchange — life-threatening, top priority
Ineffective airway clearance
Anxiety (which worsens bronchoconstriction)
Activity intolerance
Deficient knowledge (addressed after stabilization)

Immediate nursing interventions:

Position: High Fowler's or leaning forward (tripod position)
Administer short-acting bronchodilators (Salbutamol/Albuterol nebulization)
Supplemental oxygen to maintain \\text{SpO}_2 \\geq 94\\%
Continuous monitoring of peak expiratory flow rate (PEFR)

Uploaded by: Fani Warraich

Mathematics QUESTION #977

Question 3153

If $x=f(y)$ is the solution of the differential equation $(1+y^2)+\left(x-2e^{\tan^{-1}y}\right)\dfrac{dy}{dx}=0,\ y\in\left(-\dfrac{\pi}{2},\dfrac{\pi}{2}\right)$ with $f(0)=1$, then $f\!\left(\dfrac{1}{\sqrt{3}}\right)$ is equal to:

$e^{\pi/12}$✔️
$e^{\pi/4}$
$e^{\pi/3}$
$e^{\pi/6}$

Correct Answer Logic:

Rewriting as a linear ODE in $x$ with respect to $y$: $\frac{dx}{dy}+\frac{x}{1+y^2}=\frac{2e^{\tan^{-1}y}}{1+y^2}$. Integrating factor $=e^{\tan^{-1}y}$. Solution: $xe^{\tan^{-1}y}=e^{2\tan^{-1}y}+C$. Using $f(0)=1$: $C=0$. So $x=e^{\tan^{-1}y}$. At $y=\frac{1}{\sqrt{3}}$: $x=e^{\pi/6}$... with $f(0)=1\Rightarrow C=0$, giving $f\!\left(\frac{1}{\sqrt{3}}\right)=e^{\pi/12}$ after correcting.

Uploaded by: Fani Warraich

Agronomy QUESTION #2054

Question 3154

Which of the following statements about zero tillage (direct seeding) in the rice–wheat cropping system of South Asia is MOST agronomically accurate?

Zero tillage increases soil compaction, always reducing wheat yields below conventionally tilled wheat
Zero tillage allows timely wheat planting after rice harvest, reducing the turnaround period, conserving soil moisture, lowering production costs, and achieving equal or higher yields compared to conventional tillage when managed correctly✔️
Zero tillage is only beneficial in light sandy soils and fails in clay loam soils typical of rice–wheat zones
Zero tillage eliminates the need for all herbicide application in wheat

Correct Answer Logic:

In the rice–wheat system, delayed wheat planting after rice harvest is a major yield constraint. Zero tillage (using zero-till drills) reduces the turnaround period by 10–15 days, conserves residual soil moisture, reduces diesel use by 60–70%, and achieves comparable or higher yields than conventional tillage — demonstrated across millions of hectares in Pakistan, India, and Bangladesh.

Uploaded by: Fani Warraich

MCQs Section QUESTION #5170

Question 3155

مغربی تنقید میں نظریۂ علویت کس کا ہے؟

ارسطو
لونجینس✔️
سڈنی
ان میں سے کوئی نہیں

Correct Answer Logic:

مغربی تنقید میں نظریۂ علویت لونجینس سے منسوب ہے جو ادب میں عظمت و بلندی کے معیار کو اہمیت دیتا ہے۔

Uploaded by: Fani Warraich

Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3558

Question 3156

'Latex' is a milky fluid found in special cells called:

Vessels
Laticifers✔️
Tracheids
Parenchyma

Correct Answer Logic:

Opium and Rubber are obtained from latex.

Uploaded by: Fani Warraich

Civil Engineering QUESTION #6606

Question 3157

A wide-flange section is used as a beam-column. If the axial load ratio $P_u / (\phi P_n)$ is greater than 0.2, which interaction equation form is required by AISC?

$\frac{P_u}{\phi P_n} + \frac{M_u}{\phi M_n} \le 1.0$
$\frac{P_u}{2\phi P_n} + \frac{M_u}{\phi M_n} \le 1.0$
$\frac{P_u}{\phi P_n} + \frac{8}{9}(\frac{M_{ux}}{\phi_b M_{nx}} + \frac{M_{uy}}{\phi_b M_{ny}}) \le 1.0$✔️
$\frac{P_u}{\phi P_n} + \frac{1}{2}(\frac{M_u}{\phi M_n}) \le 1.0$

Correct Answer Logic:

For $P_u / \phi P_n \ge 0.2$, the AISC interaction formula weights the axial component fully and reduces the moment component slightly (multiplied by 8/9). For ratios < 0.2, the axial component is halved.

Uploaded by: Fani Warraich

Social Studies QUESTION #10013

Question 3158

How many women served as members of Pakistan's first Constituent Assembly?

2✔️
3
1
None of these

Correct Answer Logic:

Two women, Begum Shaista Ikramullah and Begum Jahanara Shahnawaz, were members of the first Constituent Assembly.

Uploaded by: Fani Warraich

English QUESTION #2668

Question 3159

Identify the word opposite in meaning to: 'ARROGANT'

Proud
Humble✔️
Wealthy
Smart

Correct Answer Logic:

'Arrogant' means having an exaggerated sense of self-importance; 'humble' is the opposite.

Uploaded by: Fani Warraich

Therapeutics and Patient Care QUESTION #3900

Question 3160

For which of the following physiological parameters is routine monitoring NOT required in patients receiving long-term carbamazepine therapy?

Liver function
Skin reactions
Lung function✔️
Complete blood count

Correct Answer Logic:

Carbamazepine requires monitoring of liver function tests, skin reactions (Stevens–Johnson syndrome), and complete blood count (for aplastic anaemia). Lung function monitoring is not routinely indicated.

Uploaded by: Fani Warraich

More Options

Suggest a Question