✅ Total Questions: 50
🔢 Each question has 4 options and answer
📘 Covers: Physics, Chemistry, Mathematics, Electrical Engineering
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📘 Mock Test 8 – WBJEE JELET 2025
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1. The SI unit of capacitance is:
A. Ohm
B. Farad
C. Henry
D. Volt
Answer: B
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2. Integration of 1/x dx is:
A.
B.
C.
D.
Answer: B
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3. The most electronegative element is:
A. Oxygen
B. Nitrogen
C. Chlorine
D. Fluorine
Answer: D
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4. A body with uniform velocity has:
A. Constant acceleration
B. Zero acceleration
C. Variable acceleration
D. High speed
Answer: B
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5. The formula of Ohm’s law is:
A.
B.
C.
D.
Answer: A
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6. Binary equivalent of decimal 6 is:
A. 110
B. 111
C. 101
D. 011
Answer: A
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7. The value of is:
A. 0
B. 1
C. -1
D. Undefined
Answer: B
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8. Unit of magnetic field is:
A. Tesla
B. Weber
C. Coulomb
D. Henry
Answer: A
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9. An ideal voltage source has:
A. Zero resistance
B. Infinite resistance
C. Constant resistance
D. No EMF
Answer: A
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10. Valency of carbon is:
A. 2
B. 4
C. 3
D. 6
Answer: B
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11. The Boolean identity A + 0 = ?
A. A
B. 1
C. 0
D. A̅
Answer: A
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12. Differentiation of is:
A. 3
B.
C.
D.
Answer: C
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13. SI unit of charge:
A. Coulomb
B. Ampere
C. Watt
D. Newton
Answer: A
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14. Water is:
A. Acidic
B. Basic
C. Neutral
D. Salty
Answer: C
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15. A full adder has:
A. 1 input
B. 2 inputs
C. 3 inputs
D. 4 inputs
Answer: C
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16. 1 mole of any gas at STP occupies:
A. 22.4 L
B. 1 L
C. 1 m³
D. 2.24 L
Answer: A
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17. Unit of frequency:
A. Volt
B. Newton
C. Hertz
D. Joule
Answer: C
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18. Which law explains electromagnetic induction?
A. Faraday’s law
B. Lenz’s law
C. Ohm’s law
D. Ampere’s law
Answer: A
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19. The square root of 144 is:
A. 10
B. 12
C. 14
D. 16
Answer: B
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20. What is a NOT gate also called?
A. Converter
B. Amplifier
C. Inverter
D. Selector
Answer: C
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21. The derivative of :
A.
B.
C.
D.
Answer: B
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22. An inductor stores energy in:
A. Electric field
B. Magnetic field
C. Gravitational field
D. Electrostatic field
Answer: B
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23. Which of the following is a semiconductor?
A. Copper
B. Silver
C. Silicon
D. Iron
Answer: C
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24. SI unit of pressure:
A. Pascal
B. Watt
C. Newton
D. Bar
Answer: A
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25. The reciprocal of resistance is:
A. Reactance
B. Capacitance
C. Conductance
D. Inductance
Answer: C
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26. A byte has:
A. 4 bits
B. 2 bits
C. 8 bits
D. 16 bits
Answer: C
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27. Which of the following is a vector quantity?
A. Speed
B. Time
C. Distance
D. Force
Answer: D
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28. An example of chemical change:
A. Melting of ice
B. Boiling of water
C. Burning of paper
D. Dissolving salt
Answer: C
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29. Value of is:
A. 1
B. 10
C. 0
D. Undefined
Answer: C
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30. A diode allows current to flow in:
A. Both directions
B. No direction
C. Reverse direction only
D. One direction only
Answer: D
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31. What is the atomic number of carbon?
A. 4
B. 6
C. 12
D. 8
Answer: B
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32. Digital circuits use:
A. Continuous signals
B. Analog signals
C. Discrete signals
D. Mechanical signals
Answer: C
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33. The current through a 10Ω resistor with 5V applied is:
A. 2A
B. 0.5A
C. 1A
D. 5A
Answer: B
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34. Total internal reflection occurs when light travels from:
A. Air to water
B. Glass to air
C. Water to glass
D. Air to glass
Answer: B
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35. The matrix with same number of rows and columns is:
A. Square matrix
B. Row matrix
C. Column matrix
D. Null matrix
Answer: A
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36. Which gate gives output 1 only when all inputs are 1?
A. OR
B. AND
C. NAND
D. XOR
Answer: B
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37. The primary component of glass is:
A. CaCO₃
B. SiO₂
C. NaCl
D. Al₂O₃
Answer: B
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38. 1 Ampere is equal to:
A. 1 C/sec
B. 1 J/sec
C. 1 V/sec
D. 1 W/sec
Answer: A
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39. The logarithm of 1000 (base 10) is:
A. 1
B. 2
C. 3
D. 4
Answer: C
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40. What is a primary cell?
A. Rechargeable
B. Non-rechargeable
C. Used in industry
D. High current cell
Answer: B
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41. Which of the following is acidic?
A. Soap
B. Lemon juice
C. Baking soda
D. Ammonia
Answer: B
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42. Light year is a unit of:
A. Time
B. Distance
C. Speed
D. Energy
Answer: B
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43. What is Boolean 1 AND 0?
A. 0
B. 1
C. Undefined
D. Error
Answer: A
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44. In binary, 2 is written as:
A. 01
B. 10
C. 11
D. 100
Answer: B
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45. Derivative of :
A.
B.
C.
D.
Answer: B
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46. Diodes are made of:
A. Metal
B. Semiconductor
C. Insulator
D. Alloy
Answer: B
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47. The best conductor of electricity is:
A. Iron
B. Aluminium
C. Copper
D. Silver
Answer: D
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48. Acceleration is:
A. Distance/Time
B. Velocity/Time
C. Speed × Time
D. Mass × Velocity
Answer: B
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49. The basic unit of digital computer is:
A. Transistor
B. Logic gate
C. Flip-flop
D. Bit
Answer: D
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50. Transformer works on:
A. Static electricity
B. Electrostatics
C. Magnetic flux
D. Mutual induction
Answer: D
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