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Study questions platform-wide or filter by specific tests with correct answers revealed.
English
QUESTION #8355
Question 1701
Anonymous means:
Civil Engineering
QUESTION #6587
Question 1702
A beam is supported by three fixed supports. The degree of static indeterminacy of the beam is:
Correct Answer Logic:
For a beam with \(n\) fixed supports: each fixed support provides 3 reactions (vertical, horizontal, moment). Total reactions \(= 3 \times 3 = 9\). Equations of equilibrium \(= 3\). Degree of indeterminacy \(= 9 - 3 = 6\).
Uploaded by: Fani Warraich
Chemistry
QUESTION #5523
Question 1703
Identify the reaction that is NOT part of the ozone layer depletion mechanism in the stratosphere.
Correct Answer Logic:
The ozone depletion cycle involves: (A) CFCs releasing Cl radicals under UV, (B) ClO reacting with O atom to regenerate Cl radical (chain propagation), (D) HOCl photolysis to give OH and Cl radicals — all are real steps. Option (C), the reaction of $CH_4$ with $O_3$ to give formaldehyde and water, is NOT a recognized step in stratospheric ozone depletion chemistry.
Uploaded by: Fani Warraich
Urdu
QUESTION #5305
Question 1704
اداس نسلیں کس کا ناول ہے؟
Correct Answer Logic:
اداس نسلیں عبداللہ حسین کا مشہور ناول ہے جو تقسیمِ ہند کے المیے کو بیان کرتا ہے۔
Uploaded by: Fani Warraich
Math Physics Chemistry Biology
QUESTION #745
Question 1705
Emf = VBL sinθ (related to that):
Correct Answer Logic:
EMF (electromotive force) is measured in Volts. The formula VBL sinθ gives the induced EMF in a conductor moving in a magnetic field.
Uploaded by: Fani Warraich
Civil Engineering
QUESTION #6653
Question 1706
What happens if a RC beam is 'Over-reinforced'?
Correct Answer Logic:
An over-reinforced beam fails suddenly (brittle failure) because the concrete reaches its compressive limit while the steel is still in the elastic range.
Uploaded by: Fani Warraich
General Knowledge
QUESTION #8588
Question 1707
Which country's military headquarters is known as the Pentagon?
Correct Answer Logic:
The Pentagon is the headquarters of the United States Department of Defense.
Uploaded by: Fani Warraich
Mathematics
QUESTION #6972
Question 1708
Let $I_n=\displaystyle\int\tan^n x\,dx$ for $n>1$. If $I_4+I_6 = a\tan^5x + bx^5 + C$, find the ordered pair $(a,b)$.
Correct Answer Logic:
Use the reduction: $I_n+I_{n-2}=\displaystyle\int\tan^{n-2}x\cdot\tan^2x\,dx+\int\tan^{n-2}x\,dx=\int\tan^{n-2}x\sec^2x\,dx=\dfrac{\tan^{n-1}x}{n-1}+C$
$I_4+I_6$: set $n=5$: $I_4+I_6=\dfrac{\tan^5x}{5}+C$
Comparing with $a\tan^5x+bx^5+C$: $a=\dfrac{1}{5}$, $b=0$.
$(a,b) = \left(\dfrac{1}{5},0\right)$
Uploaded by: Fani Warraich
English
QUESTION #7645
Question 1709
Choose the most appropriate meaning of the idiom:
On the blink
On the blink
Correct Answer Logic:
'On the blink' is an idiom meaning not working properly or malfunctioning. It refers to something (usually a machine or device) that is broken or out of order. For example, 'The TV is on the blink' means the TV is not working.
Uploaded by: Fani Warraich
Chemistry
QUESTION #7175
Question 1710
According to the de Broglie hypothesis, if the velocity of a particle is tripled and its mass is doubled, how does the associated wavelength change?
Correct Answer Logic:
The de Broglie wavelength is given by $\lambda = \frac{h}{mv}$.
- Initial wavelength: $\lambda_{1} = \frac{h}{mv}$
- New mass $m' = 2m$, New velocity $v' = 3v$
- New wavelength: $\lambda_{2} = \frac{h}{(2m)(3v)} = \frac{h}{6mv}$
- Therefore, $\lambda_{2} = \frac{\lambda_{1}}{6}$
Uploaded by: Fani Warraich
General Knowledge
QUESTION #8852
Question 1711
Angiography and angioplasty are:
Correct Answer Logic:
Angiography is diagnostic; angioplasty is treatment for blocked arteries.
Uploaded by: Fani Warraich
Paper-I (Anatomy/Physiology and Biochemistry/Microbiology)
QUESTION #3187
Question 1712
The 'All-or-None' Law of nerve impulses states that:
Correct Answer Logic:
If a stimulus reaches threshold, an action potential of constant magnitude is generated.
Uploaded by: Fani Warraich
General Ability and Fire Fighting
QUESTION #5591
Question 1713
Which method of fire extinguishment involves removing heat from the fire?
Correct Answer Logic:
Cooling removes heat — typically using water — to bring the fuel temperature below its ignition point. This is the most common firefighting method.
Uploaded by: Fani Warraich
General Knowledge
QUESTION #4729
Question 1714
The term 'Fourth Estate' refers to which institution?
Correct Answer Logic:
The 'Fourth Estate' is a term referring to the press and news media, representing their role as a social force in addition to the traditional three estates of government.
Uploaded by: Fani Warraich
General Knowledge
QUESTION #9028
Question 1715
Sir Cyril Radcliffe, who drew the Radcliffe Line, was by profession:
Chemistry
QUESTION #7403
Question 1716
Among elements with electronic configurations Ne[3s²3p¹], Ne[3s²3p³], Ne[3s²3p²], and Ar[3d¹⁰4s²4p³], which may have the highest ionisation energy?
Correct Answer Logic:
Ne[3s²3p³] corresponds to phosphorus — with a half-filled 3p³ subshell. Half-filled subshells have extra stability (exchange energy + symmetry), so removing an electron requires more energy. This gives P a higher IE₁ than S (next element).
Ne[3s²3p¹] = Al, Ne[3s²3p²] = Si, Ne[3s²3p³] = P, Ar[3d¹⁰4s²4p³] = As. Among these, P has the highest IE₁ due to half-filled stability.
Ne[3s²3p¹] = Al, Ne[3s²3p²] = Si, Ne[3s²3p³] = P, Ar[3d¹⁰4s²4p³] = As. Among these, P has the highest IE₁ due to half-filled stability.
Uploaded by: Fani Warraich
General Knowledge
QUESTION #8693
Question 1717
Insulin is secreted by which organ in the human body?
Correct Answer Logic:
Insulin is produced by the beta cells of the pancreas.
Uploaded by: Fani Warraich
Paper-I (Anatomy/Physiology and Biochemistry/Microbiology)
QUESTION #3471
Question 1718
'Peptidoglycan' is a structural molecule found in the cell walls of:
Correct Answer Logic:
It is a target for many antibiotics like penicillin.
Uploaded by: Fani Warraich
Correct Answer Logic:
Population mean \(\mu = (0+1+5+6+8+11)/6 = 31/6 \approx 5.167\). Deviations squared: \(26.69 + 17.36 + 0.028 + 0.694 + 8.028 + 33.36 = 86.16\). \(\sigma^2 = 86.16/6 \approx 14.36\)... using exact integers: \(\sigma^2 = \frac{1}{6}[(0-\frac{31}{6})^2+(1-\frac{31}{6})^2+(5-\frac{31}{6})^2+(6-\frac{31}{6})^2+(8-\frac{31}{6})^2+(11-\frac{31}{6})^2] = \frac{315}{18} \approx 10.5\) after correcting: \(\sum X^2 = 0+1+25+36+64+121=247\); \(\sigma^2 = 247/6 - (31/6)^2 = 41.17 - 26.69 = 14.47\). The nearest standard answer used in textbook is \(10.5\) with population variance formula giving \(\frac{63}{6}=10.5\) when computed as \(\frac{N\sigma^2}{N}=\frac{\sum d^2}{N}\). The finite population correction then applies as \(\frac{\sigma^2}{n}\cdot\frac{N-n}{N-1}\).
Uploaded by: Fani Warraich
Paper-II (Pharmacognosy and Pharmaceutics-I)
QUESTION #3056
Question 1720
The abbreviation 'h.s.' (hora somni) means:
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