Reading Mode - Questions

Reducing power is inversely proportional to the standard reduction potential ($E^0$). The more negative the $E^0$ value, the stronger the reducing agent. Comparing the values: $Ni$ (-0.25) is the weakest, followed by $Zn$ (-0.76), then $Mg$ (-2.36), and $Ca$ (-2.87) is the strongest.

Uploaded by: Fani Warraich

Boilers Mechanical Engineering QUESTION #2490

Question 2043

In the contour method of kinetostatic analysis, a closed kinematic chain is converted into two open chains by:

Removing the ground link
Severing one kinematic pair and introducing reaction force unknowns at that pair✔️
Applying inertia forces to all links simultaneously
Setting all angular accelerations to zero

Correct Answer Logic:

The contour method 'mentally disconnects' the kinematic pair $A_i$ between links $i-1$ and $i$, introducing unknown reaction forces $\mathbf{F}_{i-1,i}$ and $\mathbf{F}_{i,i-1}=-\mathbf{F}_{i-1,i}$. The closed chain becomes two open chains.

Uploaded by: Fani Warraich

Pakistan Affairs QUESTION #593

Question 2044

In 1945 Maulana Abul kalam Azad was the President of:

All-India Muslim League
Indian National Congress✔️
Jamiat al Ulama i Hind
None of These

Correct Answer Logic:

He served as the President of the INC from 1940 to 1946.

Uploaded by: Fani Warraich

Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3651

Question 2045

'Pyrethrum' is a natural drug used as an:

Insecticide✔️
Antibiotic
Vitamin
Antacid

Correct Answer Logic:

It is derived from Chrysanthemum flowers and is toxic to insects.

Uploaded by: Fani Warraich

Mathematics QUESTION #6931

Question 2046

How many integers greater than $6000$ can be formed using the digits $3, 5, 6, 7, 8$ without repeating any digit?

216
192✔️
120
72

Correct Answer Logic:

Numbers greater than 6000 can be 4-digit or 5-digit.

5-digit numbers: All arrangements of 5 digits $= 5! = 120$.

4-digit numbers $> 6000$: The leading digit must be $6, 7,$ or $8$ (3 choices). Remaining 3 positions filled from 4 remaining digits: $3 \times 4 \times 3 \times 2 = 72$.

Total $= 120 + 72 = \mathbf{192}$

Uploaded by: Fani Warraich

Therapeutics and Patient Care QUESTION #3915

Question 2047

Which piece of counselling advice given to a patient on long-term rifampicin therapy would be considered LEAST appropriate or incorrect?

Your urine may turn a red-orange colour
You will require regular liver function tests
Your iris colour may darken✔️
You will require regular blood count monitoring

Correct Answer Logic:

Iris darkening is a documented adverse effect of latanoprost (a prostaglandin analogue eye drop), not rifampicin. Rifampicin causes red-orange discolouration of body fluids and requires liver function and blood count monitoring.

Uploaded by: Fani Warraich

Physics QUESTION #7090

Question 2048

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

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

Uploaded by: Fani Warraich

English QUESTION #2771

Question 2049

What does the idiom 'HIT THE NAIL ON THE HEAD' mean? (Note: Idioms have figurative meanings, not literal ones)

To hammer something
To be exactly correct✔️
To injure someone
To do a construction job

Correct Answer Logic:

'Hit the nail on the head' means to describe exactly what is causing a situation or problem — to be precisely correct. Example: 'You hit the nail on the head when you said the problem is poor communication.'

Uploaded by: Fani Warraich

Islamic Studies QUESTION #660

Question 2050

The Great Mosque of Cordoba was built by:

Abdur Rehman I✔️
Al-Walid I
Harun al-Rashid
None of these

Correct Answer Logic:

Abdur Rehman I founded the mosque after establishing the Umayyad Emirate in Spain.

Uploaded by: Fani Warraich

Psychology QUESTION #9922

Question 2051

In which motivational conflict must one choose between 'the lesser of two evils'?

Approach-approach
Approach-avoidance
Avoidance-avoidance✔️
Multiple approach-avoidance

Correct Answer Logic:

The avoidance-avoidance conflict involves choosing between two equally undesirable options — 'between a rock and a hard place'. Both choices are aversive, generating the most stress and vacillation of all conflict types.

Uploaded by: Fani Warraich

General Science and Ability QUESTION #254

Question 2052

The pH of soil is raised using:

Lime stone✔️
Gypsum
Urea
None of these

Correct Answer Logic:

Limestone (calcium carbonate) is alkaline and is used to neutralize acidic soil.

Uploaded by: Fani Warraich

Pakistan Affairs QUESTION #4663

Question 2053

How many medals did Pakistan win at the 18th Commonwealth Games in Melbourne 2006?

3
5✔️
7
9

Correct Answer Logic:

Pakistan won 5 medals at the 2006 Commonwealth Games held in Melbourne, Australia.

Uploaded by: Fani Warraich

Electronics Engineering QUESTION #11696

Question 2054

A ceramic disc capacitor of $100\,\text{pF}$ is tested on a DMM capacitance range with a resolution of $1\,\text{nF}$. The meter reads zero. The correct conclusion is:

The capacitor is short-circuited
The capacitor is open-circuited
The capacitor value is below the meter's minimum measurable range✔️
The capacitor is out of tolerance

Correct Answer Logic:

A DMM with $1\,\text{nF}$ resolution cannot reliably measure capacitors smaller than its minimum range. $100\,\text{pF} = 0.1\,\text{nF}$ — well below the resolution. A zero reading here means the capacitor is too small for the instrument, not that it is faulty. An LCR meter or RF impedance analyser with pF resolution is needed.

Uploaded by: Fani Warraich

Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3090

Question 2055

The 'Sutures' of the skull are examples of which type of joint?

Synovial (freely movable)
Fibrous (immovable)✔️
Cartilaginous (slightly movable)
None of these

Correct Answer Logic:

Sutures are immovable fibrous joints that lock the cranial bones together.

Uploaded by: Fani Warraich

General Knowledge QUESTION #11483

Question 2056

Which wireless networking technology connects devices over short distances using radio waves?

Bluetooth✔️
Wi-Fi
Modem
USB

Correct Answer Logic:

Bluetooth (IEEE 802.15.1) is a short-range wireless technology for exchanging data between devices typically up to 10 metres apart. It operates in the 2.4 GHz band. Common uses: wireless headphones, keyboards, mice, smartwatches, and file transfer. Wi-Fi covers longer distances; USB is wired.

Uploaded by: Fani Warraich

Agriculture Economics QUESTION #11895

Question 2057

Market equilibrium occurs where:

Quantity supplied exceeds quantity demanded
Quantity demanded equals quantity supplied at the prevailing price, $Q_d = Q_s$✔️
Price equals average cost
Total revenue is maximized

Correct Answer Logic:

Equilibrium is the price-quantity point at which $Q_d = Q_s$: the quantities buyers wish to purchase and sellers wish to offer are exactly equal.

Uploaded by: Fani Warraich

Biology Zoology Botany QUESTION #10805

Question 2058

Linking of Ca²⁺ with calmodulin activates which enzyme in the contraction cycle of smooth muscles?

MLC kinase✔️
MLC phosphorylase
MHC kinase
MHC phosphorylase

Correct Answer Logic:

In smooth muscle, Ca²⁺ binds calmodulin, forming the Ca²⁺-calmodulin complex that activates Myosin Light Chain (MLC) kinase. MLC kinase phosphorylates the regulatory light chains of myosin, enabling cross-bridge cycling and muscle contraction. This differs from skeletal muscle, where Ca²⁺ acts via troponin-tropomyosin on thin filaments. MLC phosphorylation is the key regulatory step in smooth muscle contraction.

Uploaded by: Fani Warraich

English QUESTION #8513

Question 2059

The lecture _______ yesterday was really impressive.

Gave
Spoke
Made
Delivered✔️

Correct Answer Logic:

'Delivered a lecture' is correct.

Uploaded by: Fani Warraich

General Knowledge QUESTION #11553

Question 2060

Which of the following is considered internal processor storage rather than main memory?

RAM
Register✔️
DRAM
PROM

Correct Answer Logic:

A Register is the fastest and most temporary storage within the CPU, holding data only during active processing (microseconds). While RAM and DRAM are volatile (lose data without power), Registers are the most transient — they hold data only for the duration of a single instruction execution cycle.

Uploaded by: Fani Warraich

More Options

Suggest a Question