๐Ÿ“š Questions Reading Mode

Study questions platform-wide or filter by specific tests with correct answers revealed.

Log in to see your joined tests.
Boilers Mechanical Engineering QUESTION #2540
Question 861
The parallel-axis (Steiner) theorem gives the second moment of area about an axis parallel to the centroidal axis as:
  • \(I=\bar{I}-Ad^2\)
  • \(I=\bar{I}\cdot d^2\)
  • \(I=\bar{I}+Ad^2\)โœ”๏ธ
  • \(I=\frac{\bar{I}}{Ad^2}\)
Correct Answer Logic:
Steiner's theorem: \(I=\bar{I}+Ad^2\), where \(\bar{I}\) is the centroidal second moment, \(A\) is the area, and \(d\) is the perpendicular distance between the axes. The second moment always increases for axes away from the centroid.
Uploaded by: Fani Warraich
Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3040
Question 862
Which method is used for sterilizing heat-sensitive liquids like vaccines?
  • Autoclaving
  • Filtrationโœ”๏ธ
  • Hot air oven
  • Direct flaming
Correct Answer Logic:
Filtration through bacteria-proof filters is used for thermolabile (heat-sensitive) liquids.
Uploaded by: Fani Warraich
Islamic Studies QUESTION #362
Question 863
"Ghunyat ul Talibeen" was written by the Great Sufi:
  • Al Ghazali
  • Al Sha'ahrani
  • Abdul Qadir Jillaniโœ”๏ธ
  • Ali Hajwairi
Correct Answer Logic:
Sheikh Abdul Qadir Jillani is the author of this famous spiritual guidebook.+1
Uploaded by: Fani Warraich
Chemistry QUESTION #7407
Question 864
Which is the correct order for the first ionisation potential (IPโ‚)?
  • \(\text{Na} > \text{Al}\)
  • \(\text{Mg} > \text{Al}\)โœ”๏ธ
  • \(\text{Ga} > \text{Ca}\)
  • \(\text{Mg} > \text{Be}\)
Correct Answer Logic:
IEโ‚ irregularities:
Generally IEโ‚ increases left to right, but Al (3pยน) has lower IEโ‚ than Mg (3sยฒ) because:
  • Mg has a full 3sยฒ subshell (extra stability)
  • Al's 3p electron is shielded by 3s electrons and easier to remove
Therefore \(\text{Mg} > \text{Al}\) is a correct and expected inequality. This is one of the classic exceptions to the smooth IE trend across period 3.
Uploaded by: Fani Warraich
Chemistry QUESTION #7502
Question 865

Match the compounds in Item I with their correct detection reagents in Item II:

Item I (Compound)Item II (Reagent)
(A) Lysine(P) 1-naphthol
(B) Furfural(Q) Ninhydrin
(C) Benzyl alcohol(R) KMnO$_4$
(D) Styrene(S) Ceric ammonium nitrate
  • (A)โ†’(Q); (B)โ†’(P); (C)โ†’(S); (D)โ†’(R)โœ”๏ธ
  • (A)โ†’(Q); (B)โ†’(P); (C)โ†’(R); (D)โ†’(S)
  • (A)โ†’(R); (B)โ†’(P); (C)โ†’(Q); (D)โ†’(S)
  • (A)โ†’(Q); (B)โ†’(R); (C)โ†’(S); (D)โ†’(P)
Correct Answer Logic:

Matching logic:

  • Lysine is an amino acid โ€” detected by ninhydrin (Q), which gives a purple colour with primary amines/amino acids.
  • Furfural is an aldehyde from furan โ€” detected by 1-naphthol (P) via the Tollens-type or colour reaction specific to furfural.
  • Benzyl alcohol (PhCH$_2$OH) is a primary alcohol โ€” detected by ceric ammonium nitrate (S), which gives a red colour with alcohols.
  • Styrene (Phโ€“CH=CH$_2$) has a C=C bond โ€” oxidized by KMnO$_4$ (R), which gets decolourized.

Correct match: (A)โ†’(Q), (B)โ†’(P), (C)โ†’(S), (D)โ†’(R)

Uploaded by: Fani Warraich
Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3663
Question 866
'Latex' is a milky fluid found in special cells called:
  • Vessels
  • Laticifersโœ”๏ธ
  • Tracheids
  • Parenchyma
Correct Answer Logic:
Opium and Rubber are obtained from latex.
Uploaded by: Fani Warraich
Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3157
Question 867
'Anemia' is a condition characterized by:
  • High blood sugar
  • Low oxygen-carrying capacity of bloodโœ”๏ธ
  • High blood pressure
  • Excessive white blood cells
Correct Answer Logic:
Anemia is usually due to low hemoglobin or low RBC count.
Uploaded by: Fani Warraich
Correct Answer Logic:
For maximum transmission (minimum reflection), destructive interference of reflected waves is needed. Since light goes from lower \(n\) (air) to higher \(n\) (film), and film \(n >\) glass \(n\), only one phase reversal occurs. Condition: \(2\mu t = \lambda \Rightarrow t = \frac{\lambda}{2\mu} = \frac{550}{2\times2} = 137.5\) nm.
Uploaded by: Fani Warraich
Islamic Studies QUESTION #7934
Question 869
Hazrat Jaafar Tayyar was martyred in the battle of:
  • Yamaman
  • Mootaโœ”๏ธ
  • Tabook
  • Badr
Correct Answer Logic:
Hazrat Ja'far ibn Abi Talib (RA), also known as Ja'far at-Tayyar (the one who flies), was martyred in the Battle of Mu'tah (Moota) in 8 AH (629 CE). He led the Muslim army after the martyrdom of Zaid bin Haritha (RA). Despite losing both arms, he held the flag with his body until martyred. The Prophet (PBUH) said Allah gave him wings to fly in Paradise.
Uploaded by: Fani Warraich
Physics QUESTION #1158
Question 870
X-rays are electromagnetic waves of wavelengths of the order of:
  • 1 nm
  • 0.1 nmโœ”๏ธ
  • 2 nm
  • 100 nm
Correct Answer Logic:
X-rays have wavelengths in the range of approximately \(0.01\ \text{nm}\) to \(10\ \text{nm}\), with a typical order of \(0.1\ \text{nm}\) (1 ร…). This is comparable to the spacing between atoms in crystals, which is why X-rays are used in crystallography.
Uploaded by: Fani Warraich
English QUESTION #8447
Question 871
Is he eligible _______ this scholarship?
  • with
  • of
  • at
  • forโœ”๏ธ
Correct Answer Logic:
'Eligible for' is correct.
Uploaded by: Fani Warraich
Mathematics QUESTION #1288
Question 872
A linear transformation \(T:\mathbb{R}^3\to\mathbb{R}^2\) must satisfy, for all \(\mathbf{u},\mathbf{v}\in\mathbb{R}^3\) and scalar \(c\):
  • T(\(\mathbf{u}+\mathbf{v}) = T(\mathbf{u})\cdot T(\mathbf{v})\)
  • T(c\(\mathbf{u}) = c^2T(\mathbf{u})\)
  • T(\(\mathbf{u}+\mathbf{v}) = T(\mathbf{u})+T(\mathbf{v})\) and \(T(c\mathbf{u})=cT(\mathbf{u})\)โœ”๏ธ
  • T must be onto
Correct Answer Logic:
A linear transformation satisfies two properties: (1) Additivity: \(T(\mathbf{u}+\mathbf{v})=T(\mathbf{u})+T(\mathbf{v})\), and (2) Homogeneity: \(T(c\mathbf{u})=cT(\mathbf{u})\). Both must hold simultaneously. Together they imply \(T(c\mathbf{u}+d\mathbf{v})=cT(\mathbf{u})+dT(\mathbf{v})\).
Uploaded by: Fani Warraich
Nursing QUESTION #9254
Question 873
A nurse assesses a 6-month-old infant. Which developmental milestone is EXPECTED and NORMAL at this age according to Denver Developmental Screening?
  • Walks alone
  • Says 2โ€“3 word sentences
  • Sits with support and transfers objects hand to handโœ”๏ธ
  • Pincer grasp and stands holding furniture
Correct Answer Logic:

Denver Developmental Screening Test (DDST-II) milestones at 6 months:

DomainExpected at 6 Months
Gross MotorSits with support, rolls over (front to back), bears weight on legs
Fine MotorTransfers objects hand to hand, reaches for objects, raking grasp
LanguageBabbles, monosyllables (ba, da, ma), laughs, squeals
Personal-SocialRecognizes faces, smiles spontaneously, feeds self cracker

Key milestones timeline:

  • 3 months: Head control, social smile
  • 6 months: Sits with support, transfers objects โœ“
  • 9 months: Stands holding furniture, pincer grasp developing
  • 12 months: Walks with support, 1โ€“2 words
  • 18 months: Walks alone, 10+ words
  • 24 months: 2โ€“3 word sentences, runs

Red flags at 6 months: No head control, no social smile, not reaching for objects โ€” warrant immediate developmental evaluation.

Uploaded by: Fani Warraich
Accounting & Finance QUESTION #1207
Question 874
A manufacturing company is considering whether to produce in-house or outsource production. Relevant costs for this decision include:
  • Fixed costs of the company.
  • Historical costs of production.
  • Direct variable costs and outsourcing costs.โœ”๏ธ
  • Total costs incurred in the prior year.
Correct Answer Logic:
In a make-or-buy (outsourcing) decision, only relevant (incremental/differential) costs matter. These include direct variable costs of in-house production and the cost of outsourcing. Fixed costs that remain unchanged regardless of the decision are irrelevant. Historical (sunk) costs are also irrelevant as they cannot be changed.
Uploaded by: Fani Warraich
Correct Answer Logic:
\(\frac{\Delta P}{P}\times100 = 3\times1+2\times3+1\times2+\frac{1}{2}\times4 = 3+6+2+2=13\%\).
Uploaded by: Fani Warraich
Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3389
Question 876
The backbone of a DNA molecule is made of:
  • Nitrogenous bases and sugar
  • Phosphate groups and sugar (Deoxyribose)โœ”๏ธ
  • Amino acids
  • Lipids
Correct Answer Logic:
Alternating phosphate and sugar groups form the structural frame.
Uploaded by: Fani Warraich
Correct Answer Logic:

Initially: 4 red, 6 black (10 total).

Case 1 โ€” First ball is red (prob $= \frac{4}{10}$):
Bag becomes: 6 red, 6 black (12 total). $P(\text{red 2nd}) = \frac{6}{12} = \frac{1}{2}$.

Case 2 โ€” First ball is black (prob $= \frac{6}{10}$):
Bag becomes: 4 red, 8 black (12 total). $P(\text{red 2nd}) = \frac{4}{12} = \frac{1}{3}$.

Total: $\dfrac{4}{10}\cdot\dfrac{1}{2}+\dfrac{6}{10}\cdot\dfrac{1}{3} = \dfrac{2}{10}+\dfrac{2}{10} = \dfrac{4}{10} = \dfrac{2}{5}$

Uploaded by: Fani Warraich
General Knowledge QUESTION #8996
Question 878
Who is the founder of the Scout Movement?
  • Robert Baden-Powellโœ”๏ธ
  • Lord Colin Powell
  • Maccollins
  • Nikola Tesla
Correct Answer Logic:
Baden-Powell founded the Scouting movement.
Uploaded by: Fani Warraich
Physics QUESTION #7295
Question 879

The velocity-time graph for a body projected vertically upward is best described as a:

  • Parabola
  • Ellipse
  • Hyperbola
  • Straight lineโœ”๏ธ
Correct Answer Logic:

For a body projected vertically upward, only gravity acts on it โ€” a constant acceleration $g$ downward. From $v = u - gt$, velocity changes linearly with time, producing a straight line on a $v$-$t$ graph with slope $-g$.

Uploaded by: Fani Warraich
Education QUESTION #6710
Question 880
A teacher designs performance objectives for a creative writing unit. Which objective BEST balances measurability with creative freedom?
  • Students will write creatively
  • Students will create an original story incorporating at least three literary devices from the provided listโœ”๏ธ
  • Students will enjoy creative writing
  • Students will improve their writing skills
Correct Answer Logic:
Effective performance objectives are specific and measurable yet allow appropriate freedom. This objective has clear criteria (original story, three literary devices, specified list) while permitting creative variation in implementation. It's assessable without being overly prescriptive.
Uploaded by: Fani Warraich