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Study questions platform-wide or filter by specific tests with correct answers revealed.
Home Economics
QUESTION #6269
Question 1741
What is the biological value of a protein a measure of?
Correct Answer Logic:
Biological value (BV) measures how efficiently the body utilizes protein from the diet.
Uploaded by: Fani Warraich
Mathematics
QUESTION #7493
Question 1742
If \(\sum_{i=1}^{9}(x_i-5) = 9\) and \(\sum_{i=1}^{9}(x_i-5)^2 = 45\), then the standard deviation of the 9 items is:
Correct Answer Logic:
Mean = 6 (from \(\sum x_i = 54\)). Variance = \(\frac{\sum x_i^2}{9} - 36 = \frac{360}{9} - 36 = 4\). SD = 2.
Uploaded by: Fani Warraich
Correct Answer Logic:
One of the most important rules for constructing matching exercises is to include more responses than premises (or allow responses to be used more than once) so that the last premise cannot be answered by elimination. A strict one-to-one correspondence with equal numbers allows students to answer the final item through process of elimination, without any content knowledge.
Uploaded by: Fani Warraich
Mathematics
QUESTION #4105
Question 1744
The absolute maximum value of \(f(x,y)=xy-2x\) over the entire triangular region with vertices \((0,0),(4,0),(0,4)\) is:
Correct Answer Logic:
Boundary analysis: Edge \(y=0\): \(f=-2x\leq0\). Edge \(x=0\): \(f=0\). Edge \(y=4-x\): \(f=-x^2+2x\), max at \(x=1\) giving \(f=1\). Vertex values: \(f(0,0)=0\), \(f(4,0)=-8\), \(f(0,4)=0\). The absolute maximum is \(\boxed{1}\) at \((1,3)\).
Uploaded by: Fani Warraich
Chemistry
QUESTION #7183
Question 1746
How much water (in litres) must be added to $1 \text{ L}$ of an aqueous $HCl$ solution with a $pH$ of $1$ to result in a final solution with a $pH$ of $2$?
Correct Answer Logic:
Using the definition of $pH = -\log[H^{+}]$:
- Initial $[H^{+}] = 10^{-1} = 0.1 \text{ M}$.
- Final $[H^{+}] = 10^{-2} = 0.01 \text{ M}$.
- Using dilution formula $M_{1}V_{1} = M_{2}V_{2}$:
- $0.1 \times 1 = 0.01 \times V_{2} \implies V_{2} = 10 \text{ L}$.
- Volume to be added = $V_{2} - V_{1} = 10 - 1 = 9 \text{ L}$.
Uploaded by: Fani Warraich
Math Physics Chemistry Biology
QUESTION #4296
Question 1747
The process of osmoregulation refers to:
Correct Answer Logic:
Osmoregulation is the process by which organisms control the concentration of solutes and water in their body fluids to maintain homeostasis.
Uploaded by: Fani Warraich
Urdu
QUESTION #5068
Question 1748
تم مرے پاس ہوتے ہو گویا جب کوئی دوسرا نہیں ہوتا، یہ شعر کس کا ہے؟
Correct Answer Logic:
یہ مشہور شعر مومن خان مومن کا ہے۔ تاہم بعض روایات میں اسے غالب سے بھی منسوب کیا جاتا ہے۔
Uploaded by: Fani Warraich
English
QUESTION #8450
Question 1749
Magisterial means:
Correct Answer Logic:
Magisterial means having great authority or dignity.
Uploaded by: Fani Warraich
Math Physics Chemistry Biology
QUESTION #739
Question 1750
The range of visible wavelength spectrum is:
Correct Answer Logic:
The visible light spectrum ranges from approximately 400 nm (violet) to 750 nm (red).
Uploaded by: Fani Warraich
Boilers Mechanical Engineering
QUESTION #2533
Question 1751
A perfectly plastic impact (\(e=0\)) between two particles results in:
Correct Answer Logic:
For \(e=0\) (perfectly plastic impact), the relative velocity of separation is zero — the particles stick together and move as one body. This results in maximum kinetic energy loss, while linear momentum is still conserved.
Uploaded by: Fani Warraich
Accounting & Finance
QUESTION #6201
Question 1752
The 'Financial Cash Flow Identity' states that Cash Flow from Assets equals:
Correct Answer Logic:
Cash generated by assets must be distributed to those who financed them (creditors and owners) [cite: 22, 27].
Uploaded by: Fani Warraich
Urdu
QUESTION #4466
Question 1754
لفظ مہتر کا مونث بتائیں۔ (Tell the feminine form of the word 'Mehtar')
Correct Answer Logic:
The standard feminine form of 'Mehtar' (a sweeper or a title) in Urdu grammar is 'Mehtarni' (مہترنی).
Uploaded by: Fani Warraich
General Knowledge
QUESTION #8747
Question 1755
Which of the following Sufis is NOT belonging to the Chishti order?
Correct Answer Logic:
Baha-ud-Din Zakariya was of the Suhrawardiyya order, not Chishti.
Uploaded by: Fani Warraich
Accounting & Finance
QUESTION #9649
Question 1756
A dependent branch sells goods at a markup of 20% on cost. Opening Stock = Rs. 30,000; Goods Sent to Branch = Rs. 90,000; Cash Sales = Rs. 120,000. What is the Closing Stock?
Correct Answer Logic:
COGS at cost = 120,000 × 100/120 = Rs. 100,000. Closing Stock = Opening Stock + Goods Sent – COGS = 30,000 + 90,000 – 100,000 = Rs. 20,000. This is the standard method for calculating closing stock when markup is given.
Uploaded by: Fani Warraich
Education
QUESTION #6903
Question 1757
Transactional Analysis as a discipline programme is based on the premise that every person's psyche contains three components. Which of the following correctly identifies those three components?
Correct Answer Logic:
Transactional Analysis (TA) is based on Eric Berne's theory that every person operates from one of three ego states: the Child (emotional, spontaneous), the Adult (rational, present-focused), and the Parent (judgmental, nurturing, or critical). Understanding which ego state drives a student's misbehavior guides appropriate counseling-based intervention.
Uploaded by: Fani Warraich
Pharmacokinetics and Pharmacodynamics
QUESTION #3848
Question 1759
Dopamine hydrochloride is available as $6.4\ \text{mg}/100\ \text{mL}$. The prescribed infusion rate is $5\ \mu\text{g/kg/min}$ for a $64$ kg patient. What volume per minute should be infused?
Correct Answer Logic:
Required dose $= 5\ \mu\text{g/kg/min} \times 64\ \text{kg} = 320\ \mu\text{g/min}$. Concentration $= 6.4\ \text{mg}/100\ \text{mL} = 64\ \mu\text{g/mL}$. Volume $= \dfrac{320}{64} = 5\ \text{mL/min}$.
Uploaded by: Fani Warraich
English
QUESTION #8564
Question 1760
What does the idiom 'to bear the brunt of' mean?
Correct Answer Logic:
'Bear the brunt' means to suffer the worst part of an attack or ordeal.
Uploaded by: Fani Warraich
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