WBJEE JELET 2025 – Full Syllabus Mock Test 2

WBJEE JELET 2025 – Full Syllabus Mock Test 2

1. Which of the following is NOT a unit of energy?
   • Joule
   • ✅ Watt
   • Calorie
   • kWh
2. The integration of cos(x) is:
   • ✅ sin(x) + C
   • cos(x) + C
   • −cos(x) + C
   • −sin(x) + C
3. Which device converts AC to DC?
   • Transformer
   • ✅ Rectifier
   • Inverter
   • Capacitor
4. Boolean expression A + A.B equals:
   • AB
   • 0
   • ✅ A
   • B
5. Which is a vector quantity?
   • ✅ Displacement
   • Speed
   • Distance
   • Work
6. In P-N junction, the depletion region acts as:
   • ✅ Insulator
   • Conductor
   • Capacitor
   • Resistor
7. 1 Horse Power =
   • ✅ 746 Watts
   • 1000 Watts
   • 500 Watts
   • 1 kW
8. Which law states V ∝ T at constant pressure?
   • Boyle’s Law
   • ✅ Charles’s Law
   • Avogadro’s Law
   • Newton’s Law
9. Digital circuits operate on:
   • Continuous signals
   • Analog signals
   • Sinusoidal signals
   • ✅ Discrete signals
10. Which one is an extrinsic semiconductor?
    • Silicon
    • ✅ Doped silicon
    • Germanium
    • Carbon
11. Unit of electric current:
    • Volt
    • ✅ Ampere
    • Ohm
    • Farad
12. Derivative of e^x is:
    • x·e^x
    • ln(x)
    • 1
    • ✅ e^x
13. Thevenin’s theorem is applied to:
    • Open circuits
    • AC circuits only
    • ✅ Linear networks
    • Non-linear networks
14. Full form of LED:
    • Light Emission Diode
    • Light Electron Device
    • ✅ Light Emitting Diode
    • Low Energy Diode
15. 1 kilo-ohm =
    • ✅ 1000 ohms
    • 10 ohms
    • 100 ohms
    • 0.001 ohms
16. Which gate is called a universal gate?
    • AND
    • OR
    • ✅ NAND
    • NOT
17. Which of the following is a primary cell?
    • Lead-acid battery
    • ✅ Daniel cell
    • Lithium-ion battery
    • Nickel-cadmium cell
18. Unit of magnetic flux:
    • Ampere
    • ✅ Weber
    • Tesla
    • Henry
19. Boolean identity A + 1 = ?
    • 0
    • A
    • ✅ 1
    • A'
20. Electric field is measured in:
    • Volt
    • ✅ V/m
    • Ohm·m
    • Wb
21. Which of the following is not a semiconductor?
    • Germanium
    • Silicon
    • ✅ Copper
    • Gallium arsenide
22. Peak value of current I_m, RMS is:
    • I_m
    • 2I_m
    • I_m²
    • ✅ I_m/√2
23. Kirchhoff’s Current Law is based on:
    • Power conservation
    • ✅ Charge conservation
    • Mass conservation
    • Energy conservation
24. The rate of change of displacement is:
    • Acceleration
    • Jerk
    • ✅ Velocity
    • Force
25. Work done = Force × ?
    • Acceleration
    • Time
    • ✅ Displacement
    • Mass
26. Function f(x) = x³ is:
    • Linear
    • Quadratic
    • ✅ Cubic
    • Logarithmic
27. Unit of resistivity:
    • Ω
    • ✅ Ω·m
    • Ω/m
    • m/Ω
28. Capacitor blocks:
    • DC
    • ✅ DC (steady-state)
    • AC
    • None
29. NOT gate is also called:
    • ✅ Inverter
    • Flip-Flop
    • Repeater
    • Buffer
30. Which device stores charge?
    • Inductor
    • Resistor
    • ✅ Capacitor
    • Diode
31. OR gate output is 1 when:
    • Both inputs 0
    • ✅ At least one input is 1
    • All inputs 1
    • All inputs 0
32. SI unit of pressure:
    • ✅ Pascal
    • Newton
    • Watt
    • Volt
33. 1 calorie = ? J:
    • ✅ 4.18
    • 1
    • 10
    • 100
34. Basic unit of electric charge:
    • Volt
    • Ampere
    • ✅ Coulomb
    • Ohm
35. Current through resistor is:
    • Directly proportional to voltage
    • ✅ Follows Ohm’s Law
    • Independent of voltage
    • Zero
36. Sin²(x) + Cos²(x) = ?
    • 0
    • 2
    • ✅ 1
    • Undefined
37. LED emits:
    • Heat
    • Current
    • ✅ Light
    • Sound
38. Which element is in Group 1?
    • ✅ Sodium
    • Oxygen
    • Carbon
    • Helium
39. Inductor stores energy in:
    • ✅ Magnetic field
    • Electric field
    • Capacitance
    • Resistance
40. SI unit of temperature:
    • Celsius
    • Fahrenheit
    • ✅ Kelvin
    • Rankine
41. Which one is NOT a diode?
    • Zener
    • Tunnel
    • ✅ BJT
    • LED
42. Multiplication of binary 1 × 1:
    • 0
    • ✅ 1
    • 2
    • 10
43. Which is not a logic gate?
    • AND
    • ✅ ADD
    • OR
    • XOR