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English Language
UTME / JAMB 2011
Lexis, Structure & Register (Cloze & Vocabulary)
Solution
In question number 17 above, choose the best option from letters A - D that best completes the gap.
A
knowledge of
B
attitude to
C
commitment to
D
opinion of
medium Difficulty
Verified Correct Answer: Option C
Grammar & Contextual Explanation
commitment to; the state or quality of being dedicated to a cause, activity, etc.
Source: Myschool Past Questions Archive (Record #15370)
English Language
UTME / JAMB 2011
Lexis, Structure & Register (Cloze & Vocabulary)
In question number 18 above, choose the best option from letters A - D that best completes the gap.
A
customs
B
companies
C
trade-zones
D
variations
medium Difficulty
Verified Correct Answer: Option D
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #15371)
English Language
UTME / JAMB 2011
Lexis, Structure & Register (Cloze & Vocabulary)
Solution
In question number 19 above, choose the best option from letters A - D that best completes the gap.
A
repercussions
B
clouds
C
pressure
D
implication
medium Difficulty
Verified Correct Answer: Option A
Grammar & Contextual Explanation
Repercussions; an unintended consequence of an event or action, especially an unwelcome one.
Source: Myschool Past Questions Archive (Record #15372)
English Language
UTME / JAMB 2011
Lexis, Structure & Register (Cloze & Vocabulary)
Solution
In question number 20 above, choose the best option from letters A - D that best completes the gap.
A
an acceptable
B
a foremost
C
the only
D
the last
medium Difficulty
Verified Correct Answer: Option B
Grammar & Contextual Explanation
Foremost; most prominent in rank, importance, or position.
Source: Myschool Past Questions Archive (Record #15373)
English Language
UTME / JAMB 2011
Lexis, Structure & Register (Cloze & Vocabulary)
Solution
In question number 21 above, choose the best option from letters A - D that best completes the gap.
A
popularity
B
energy
C
ingenuity
D
incapability
medium Difficulty
Verified Correct Answer: Option C
Grammar & Contextual Explanation
Ingenuity; the quality of being clever, original, and inventive.
Source: Myschool Past Questions Archive (Record #15374)
English Language
UTME / JAMB 2011
Lexis, Structure & Register (Cloze & Vocabulary)
Solution
In question number 22 above, choose the best option from letters A - D that best completes the gap.
A
geography
B
societies
C
systems
D
life
medium Difficulty
Verified Correct Answer: Option D
Grammar & Contextual Explanation
Life; the existence of an individual human being
Source: Myschool Past Questions Archive (Record #15375)
English Language
UTME / JAMB 2011
Lexis, Structure & Register (Cloze & Vocabulary)
Solution
In question number 23 above, choose the best option from letters A - D that best completes the gap.
A
command
B
demand
C
warming
D
supply
medium Difficulty
Verified Correct Answer: Option C
Grammar & Contextual Explanation
warming; a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, CFCs, and other pollutants.
Source: Myschool Past Questions Archive (Record #15376)
English Language
UTME / JAMB 2011
Lexis, Structure & Register (Cloze & Vocabulary)
Solution
In question number 24 above, choose the best option from letters A - D that best completes the gap.
A
structure
B
paints
C
emulsion
D
emissions
medium Difficulty
Verified Correct Answer: Option D
Grammar & Contextual Explanation
Emissions; the production and discharge of something, especially gas or radiation.
Source: Myschool Past Questions Archive (Record #15377)
English Language
UTME / JAMB 2011
Lexis, Structure & Register (Cloze & Vocabulary)
Solution
In question number 25 above, choose the best option from letters A - D that best completes the gap.
A
notable
B
liable
C
credible
D
flexible
medium Difficulty
Verified Correct Answer: Option B
Grammar & Contextual Explanation
Liable; answerable, accountable for something or someone
Source: Myschool Past Questions Archive (Record #15378)
Physics
UTME / JAMB 2011
Gas Laws & Heat Transfer
Solution
If the volume of a gas increases steadily as the temperature decreases at constant pressure, the gas obeys
A
Graham's Law
B
Boyle's Law
C
Pressure law
D
Charles Law
E
No Correct Option
medium Difficulty
Verified Correct Answer: Option E
Physical Principles & Numerical Solution
Rate of diffusion is inversely proportional to the square root of density - Graham's law
\( P \propto \frac{1}{v} \) at constant temperature - Boyle's law
\( P \propto T \) at constant volume - Pressure law
\( P \propto T \) at constant pressure - Charles law
therefore no correct option
Source: Myschool Past Questions Archive (Record #41404)
Physics
UTME / JAMB 2011
Current Electricity & Electric Circuits
Solution
In Homes, electrical appliances and lamps are connected in parallel because
A
Parallel connections do not heat up the wires
B
independence switches can be used
C
less current will be used
D
less voltage will be used
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
if appliances are connected in series, the effective voltage is the sum of individual voltages which will be high.
Source: Myschool Past Questions Archive (Record #41406)
Physics
UTME / JAMB 2011
Magnetism, Electromagnetism & AC Circuits
Solution
In an A.C circuit, the ratio of r.m.s value to peak value of current is
A
2
B
\( \frac{1}{2} \)
C
\( \frac{1}{\sqrt{2}} \)
D
\( \sqrt{2} \)
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
Irms = \( \frac{I_0}{\sqrt{2}} \)
\( \text{Therefore } \sqrt{2Irms} = I_0 \\
\frac{Irms}{I_0} = \frac{1}{\sqrt{2}} \)
Source: Myschool Past Questions Archive (Record #41407)
Physics
UTME / JAMB 2011
Current Electricity & Electric Circuits
Solution
Two resistors 5\Omega and 10\Omega are arranged first in series and later in parallel to a 24V source, the ratio of total power dissipated in the series and parallel arrangements respectively is
A
5:3
B
1:50
C
50:1
D
3:5
E
No Correct Option
medium Difficulty
Verified Correct Answer: Option E
Physical Principles & Numerical Solution
Power in Series Arrangement
Total Resistance (R_series): R\(_{series}\) = R\(_1\) + R\(_2\) = 5\Omega + 10\Omega = 15\Omega
Total Power (P_series): P = \(\frac{V^2}{\text{R}}\) = \(\frac{24^2}{15}\) = 38.4W
Power in parallel Arrangement
Total Resistance(R\(_{parallel}\)): R\(_{parallel}\) = \(\frac{R_1 \times R_2}{R_1 + R_2}\) = \(\frac{5 \times 10}{5 + 10}\) = 3.33
Total Power(P_{parallel}\): P = \(\frac{V^2}{\text{R}}\) = \(\frac{24^2}{3.33}\) = 172.8W
Ratio of Powers
Power ratio = \(\frac{\text{Pseries}}{\text{Pparallel}}\) = \(\frac{38.4}{172.8}\) = \(\frac{1}{4.5}\) = \(\frac{2}{9}\)
Therefore, there is no correct answer.
Source: Myschool Past Questions Archive (Record #41409)
Chemistry
UTME / JAMB 2011
Stoichiometry, Mole Concept & Volumetric Analysis
What is the concentration of a solution containing 2g of NaOH in 100cm3 of solution?
[Na = 23, O = 16, H = 1]
A
0.40 mol dm-3
B
0.50 mol dm-3
C
0.05 mol dm-3
D
0.30 mol dm-3
medium Difficulty
Verified Correct Answer: Option B
Chemical Principles & Mechanism
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #4692)
Chemistry
UTME / JAMB 2011
Stoichiometry, Mole Concept & Volumetric Analysis
Which of the following properties is NOT peculiar to matter?
A
kinetic energy of particles increase from solid to gas
B
Random motion of particles increases from liquid to gas
C
Orderliness of particles increases from gas to liquid
D
Random motion of particles increases from gas to solid
medium Difficulty
Verified Correct Answer: Option D
Chemical Principles & Mechanism
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #4694)