QID #1144907
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
Electrolysis uses electric current to drive a:
A
spontaneous mechanical process
B
chemical change
C
nuclear change
D
gravitational change
Correct Answer: B. chemical change
Question: Electrolysis uses electric current to drive a:
A. spontaneous mechanical process
B. chemical change
C. nuclear change
D. gravitational change
Correct Answer: B. chemical change
Explanation: Electrolysis drives a chemical reaction using electrical energy.
QID #1144906
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
An electrochemical cell converts chemical energy into:
A
nuclear energy
B
electrical energy
C
sound only
D
mass
Correct Answer: B. electrical energy
Question: An electrochemical cell converts chemical energy into:
A. nuclear energy
B. electrical energy
C. sound only
D. mass
Correct Answer: B. electrical energy
Explanation: An electrochemical cell produces electrical energy from chemical reactions.
QID #1144905
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
An atom has atomic number 10. Its number of protons is:
A
10
B
11
C
9
D
16
Correct Answer: A. 10
Question: An atom has atomic number 10. Its number of protons is:
Correct Answer: A. 10
Explanation: Atomic number equals the number of protons.
QID #1144904
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
A solution has pH 2. It is:
A
acidic
B
basic
C
neutral
D
metallic
Correct Answer: A. acidic
Question: A solution has pH 2. It is:
A. acidic
B. basic
C. neutral
D. metallic
Correct Answer: A. acidic
Explanation: A pH below 7 indicates an acidic solution.
QID #1144903
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
An element X has valency 1. If oxygen has valency 2, which statement is useful while writing the simplest oxide formula?
A
Criss-cross the valencies and simplify the ratio
B
Add the valencies only
C
Ignore oxygen's valency
D
Use atomic masses instead
Correct Answer: A. Criss-cross the valencies and simplify the ratio
Question: An element X has valency 1. If oxygen has valency 2, which statement is useful while writing the simplest oxide formula?
A. Criss-cross the valencies and simplify the ratio
B. Add the valencies only
C. Ignore oxygen's valency
D. Use atomic masses instead
Correct Answer: A. Criss-cross the valencies and simplify the ratio
Explanation: The criss-cross method uses valencies to obtain the simplest combining ratio.
QID #1144902
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
Buoyant force on an immersed body equals the weight of:
A
the body
B
the displaced fluid
C
the container
D
the atmosphere
Correct Answer: B. the displaced fluid
Question: Buoyant force on an immersed body equals the weight of:
A. the body
B. the displaced fluid
C. the container
D. the atmosphere
Correct Answer: B. the displaced fluid
Explanation: Archimedes' principle equates buoyant force to displaced fluid weight.
QID #1144901
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
Pressure is defined as:
A
Force × area
B
Force ÷ area
C
Area ÷ force
D
Mass × volume
Correct Answer: B. Force ÷ area
Question: Pressure is defined as:
A. Force × area
B. Force ÷ area
C. Area ÷ force
D. Mass × volume
Correct Answer: B. Force ÷ area
Explanation: Pressure = force per unit area.
QID #1144900
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
Kinetic energy of a body depends on:
A
mass and velocity
B
pressure only
C
density only
D
temperature only
Correct Answer: A. mass and velocity
Question: Kinetic energy of a body depends on:
A. mass and velocity
B. pressure only
C. density only
D. temperature only
Correct Answer: A. mass and velocity
Explanation: KE = 1/2 mv².
QID #1144899
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
A sample has mass 400 g and volume 50 cm³. Density is:
A
8 g/cm³
B
20000 g/cm³
C
0.125 g/cm³
D
450 g/cm³
Correct Answer: A. 8 g/cm³
Question: A sample has mass 400 g and volume 50 cm³. Density is:
A. 8 g/cm³
B. 20000 g/cm³
C. 0.125 g/cm³
D. 450 g/cm³
Correct Answer: A. 8 g/cm³
Explanation: Density = mass/volume.
QID #1144898
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
A current of 2 A flows through a resistance of 3 Ω. The voltage is:
A
6 V
B
5 V
C
1.5 V
D
0.666667 V
Correct Answer: A. 6 V
Question: A current of 2 A flows through a resistance of 3 Ω. The voltage is:
A. 6 V
B. 5 V
C. 1.5 V
D. 0.666667 V
Correct Answer: A. 6 V
Explanation: Ohm's law: V = IR.
QID #1144897
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
A force of 50 N moves an object 2 m in the force direction. Work done is:
A
100 J
B
52 J
C
25 J
D
200 J
Correct Answer: A. 100 J
Question: A force of 50 N moves an object 2 m in the force direction. Work done is:
A. 100 J
B. 52 J
C. 25 J
D. 200 J
Correct Answer: A. 100 J
Explanation: Work = force × displacement.
QID #1144896
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
An object has initial velocity 3 m/s and acceleration 4 m/s² for 2 s. Final velocity is:
A
11 m/s
B
6 m/s
C
8 m/s
D
15 m/s
Correct Answer: A. 11 m/s
Question: An object has initial velocity 3 m/s and acceleration 4 m/s² for 2 s. Final velocity is:
A. 11 m/s
B. 6 m/s
C. 8 m/s
D. 15 m/s
Correct Answer: A. 11 m/s
Explanation: Use v = u + at.
QID #1144895
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
The binary representation of decimal 10 is:
A
1001
B
1010
C
1100
D
1110
Correct Answer: B. 1010
Question: The binary representation of decimal 10 is:
A. 1001
B. 1010
C. 1100
D. 1110
Correct Answer: B. 1010
Explanation: 10 in binary is 1010.
QID #1144894
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
A bag has 2 red and 5 blue balls. Probability of drawing a red ball is:
A
2/7
B
5/7
C
1/7
D
1/7
Correct Answer: A. 2/7
Question: A bag has 2 red and 5 blue balls. Probability of drawing a red ball is:
A. 2/7
B. 5/7
C. 1/7
D. 1/7
Correct Answer: A. 2/7
Explanation: Probability = favorable outcomes / total outcomes.
QID #1144893
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
The median of 32, 35, 38, 41, 44 is:
A
35
B
38
C
41
D
44
Correct Answer: B. 38
Question: The median of 32, 35, 38, 41, 44 is:
Correct Answer: B. 38
Explanation: For five ordered values, the median is the third value.
QID #1144892
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
If the angle of elevation of the top of a pole is 45° and the observer is 20 m away, the pole's height (ignoring eye height) is:
A
10 m
B
20 m
C
20√2 m
D
40 m
Correct Answer: B. 20 m
Question: If the angle of elevation of the top of a pole is 45° and the observer is 20 m away, the pole's height (ignoring eye height) is:
A. 10 m
B. 20 m
C. 20√2 m
D. 40 m
Correct Answer: B. 20 m
Explanation: tan45°=1, so height equals horizontal distance.
QID #1144891
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
The value of sin 45° is:
A
√2/2
B
1
C
0
D
√3
Correct Answer: A. √2/2
Question: The value of sin 45° is:
Correct Answer: A. √2/2
Explanation: sin 45° has the standard value shown.
QID #1144890
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
The circumference of a circle of radius 3 cm is:
A
9π cm
B
6π cm
C
3π cm
D
18π cm
Correct Answer: B. 6π cm
Question: The circumference of a circle of radius 3 cm is:
A. 9π cm
B. 6π cm
C. 3π cm
D. 18π cm
Correct Answer: B. 6π cm
Explanation: Circumference = 2πr.
QID #1144889
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
The sum of the interior angles of a triangle is:
A
90°
B
180°
C
270°
D
360°
Correct Answer: B. 180°
Question: The sum of the interior angles of a triangle is:
A. 90°
B. 180°
C. 270°
D. 360°
Correct Answer: B. 180°
Explanation: The angles of a triangle sum to 180°.
QID #1144888
Agniveer Army Technical 2027 Mock Test Series Agniveer Army Technical Online Mock Test 20 Medium
A rectangle has length 16 cm and breadth 5 cm. Its perimeter is:
A
80 cm
B
42 cm
C
21 cm
D
160 cm
Correct Answer: B. 42 cm
Question: A rectangle has length 16 cm and breadth 5 cm. Its perimeter is:
A. 80 cm
B. 42 cm
C. 21 cm
D. 160 cm
Correct Answer: B. 42 cm
Explanation: Perimeter = 2(l+b).
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