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English Language
UTME / JAMB 1994
Reading Comprehension, Summary & Composition
A suitable title for the passage is
A
Women in politics
B
Champions of women liberation
C
Great women of yesteryears
D
Electioneering campaigns
medium Difficulty
Verified Correct Answer: Option C
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #15353)
Physics
UTME / JAMB 1994
Current Electricity & Electric Circuits
A spring of length 25cm is extended to 30cm by a load of 150N attached to one of its end, what is the energy stored in the spring?
A
3750J
B
2500J
C
3.75J
D
2.50J
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #41544)
Physics
UTME / JAMB 1994
Units, Measurements & Dimensional Analysis
Diagram
Solution
What is the reading of the vernier calipers shown above
Attached Figure / Diagram
A
1.79cm
B
1.73cm
C
1.39cm
D
1.34cm
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
the vernier scale reading is the division on the vernier that tallies exactly with a division in the main scale
Source: Myschool Past Questions Archive (Record #41721)
Physics
UTME / JAMB 1994
Equilibrium of Forces, Moments & Flotation
Diagram
Solution
The fig above shows a uniform wood of weight 200Nand length 50m. It is pivoted at one end and suspended by a cord at the other end at an angle of 30 degrees to the wood. calculate the tension in the cord if the wood is horizontal
Attached Figure / Diagram
A
10N
B
20N
C
100N
D
200N
medium Difficulty
Verified Correct Answer: Option D
Physical Principles & Numerical Solution
Tension in the spring = Tsin 30
Taking a moment about the pivot
200 x 25 = T sin 30 x 50
5000 = T x 0.5 x 50 (since sin 30 = 0.5)
5000 = T x 25
T = \(\frac{5000}{25}\) = 200N
Source: Myschool Past Questions Archive (Record #41722)
Physics
UTME / JAMB 1994
Elasticity, Density, Pressure & Fluids
Diagram
Solution
In the fig above if the atmospheric pressure is 760mm, the pressure of the chamber G is
Attached Figure / Diagram
A
660mm
B
690mm
C
830mm
D
860mm
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
P\(_G\) = P\(_{atm}\) + height due to mercury column
P\(_G\) = 760 + (10 - 3) = 760 + 70 = 830mm
(1cm = 10mm)
Source: Myschool Past Questions Archive (Record #41723)
Physics
UTME / JAMB 1994
Current Electricity & Electric Circuits
Diagram
Solution
In the circuit diagram above, calculate the current in the 12 Ω resistor if the cell has an emf of 12V and an internal resistance of 1Ω
Attached Figure / Diagram
A
0.8A
B
1.0A
C
1.6A
D
2.4A
medium Difficulty
Verified Correct Answer: Option A
Physical Principles & Numerical Solution
\(E = I(R + r)\)
\(I = \frac{E}{R + r}\)
\(\frac{1}{R} = \frac{1}{12} + \frac{1}{6} = \frac{1}{4}\)
\(R = 4\Omega\)
\(I = \frac{12}{1 + 4} = \frac{12}{5}\)
= 2.4A
The current through the 12 \Omega resistor (in parallel) is: = 2.4 \times (\(\frac{6}{18}\)) = 2.4 \times (\(\frac{1}{3}\)) = 0.8 A
Source: Myschool Past Questions Archive (Record #41725)
Physics
UTME / JAMB 1994
Current Electricity & Electric Circuits
Diagram
In the curve above, PQRST represents an alternating voltage of frequency 50Hz. The time interval between points P and R on the graph is
Attached Figure / Diagram
A
25s
B
1/50s
C
1/100s
D
1/200s
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #41726)
Physics
UTME / JAMB 1994
Atomic, Quantum, Nuclear Physics & Electronics
Solution
If light with photon energy 2eV is incident suitably on the surface of a metal with work function 3eV, then
A
no electron will be emitted
B
the few electrons emitted will have a maximum kinetic energy of 1eV
C
the few electrons emitted will have a maximum kinetic energy of 3eV
D
many electrons will be emitted
medium Difficulty
Verified Correct Answer: Option A
Physical Principles & Numerical Solution
An electron can only be emitted if photon energy is equal or greater than work function of the plate
Source: Myschool Past Questions Archive (Record #27943)
Chemistry
UTME / JAMB 1994
Nature of Matter & Separation Techniques
A mixture of sand, ammonium chloride and sodium chloride is best separated by?
A
sublimation followed by addition of water and filteration
B
sublimation followed by addition of water and evaporation
C
addition of water followed by filtration and sublimation
D
addition of water followed by crystallization and sublimation
medium Difficulty
Verified Correct Answer: Option A
Chemical Principles & Mechanism
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #13471)
Chemistry
UTME / JAMB 1994
Nature of Matter & Separation Techniques
A pure solid usually melts?
A
over a wide range of temperature
B
over a narrow range of temperature
C
at a lower temperature than the impure one
D
at the same temperature as the impure one
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 #13507)
Chemistry
UTME / JAMB 1994
Organic Chemistry I: Hydrocarbons & Crude Oil
At the same temperature and pressure, 50 cm3 of nitrogen gas contains the same number of molecules as?
A
25 cm3 of methane
B
40 cm3 of hydrogen
C
50 cm3 of ammonia
D
100 cm3 of chlorine
medium Difficulty
Verified Correct Answer: Option C
Chemical Principles & Mechanism
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #13509)
Chemistry
UTME / JAMB 1994
Kinetic Theory of Matter & Gas Laws
Solution
8g CH4 occupies 11.2 dm3 at s.t.p. What volume would 22 g of CH3CH2CH3 occupy under the same condition?
(C = 12, H = 1)
A
3.7 dm3
B
11.2 dm3
C
22.4 dm3
D
33.6 dm3
medium Difficulty
Verified Correct Answer: Option B
Chemical Principles & Mechanism
1 mole of any gas has a volume of 22.4dm3 at STP, SO 1mole of propane = 44g = 22.4dm3
22g = ?
( 22 x 22.4)/ 44 = 11.2dm3
Source: Myschool Past Questions Archive (Record #13510)
Chemistry
UTME / JAMB 1994
Stoichiometry, Mole Concept & Volumetric Analysis
Solution
To what temperature must a gas 273 K be heated in order to double both its volume and pressure?
A
298 K
B
546 K
C
819 K
D
1092 K
medium Difficulty
Verified Correct Answer: Option D
Chemical Principles & Mechanism
Given:
T\(_1\) = 273K V\(_1\) = X P\(_1\) = Y → Let x and y represent the initial volume and initial pressure respectively.
T\(_2\) = ? V\(_2\) = 2X P\(_2\) = 2Y → Since the volume and pressure were doubled.
Using the formula, \(\frac{P_1 V_1}{T_1}\) = \(\frac{P_2 V_2}{T_2}\)
T\(_2\) = \(\frac{P_2 V_2 T_1}{P_1 V_1}\)
= \(\frac{2Y\times 2X \times 273}{Y\times X}\)
= 2 X 2 X 273
T\(_2\)= 1092K
Source: Myschool Past Questions Archive (Record #13511)
Chemistry
UTME / JAMB 1994
Particulate Nature of Matter, Laws & Formulae
For a gas, the relative molecular mass is equal to 2Y. What is Y?
A
The mas of the gas
B
The vapour density of the gas
C
The volume of the gas
D
The temperature of the gas
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 #13512)
Chemistry
UTME / JAMB 1994
Kinetic Theory of Matter & Gas Laws
The densities of two gases, X and Y, are 0.5 g dm-3 and 2.0 dm-3 respectively.
What is the rate of diffusion of X relative to Y?
A
0.1
B
0.5
C
2.0
D
4.0
medium Difficulty
Verified Correct Answer: Option C
Chemical Principles & Mechanism
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #13514)