2015 - System Engineering Quiz
  • 1. The logic gate that will have “1” at its output when any one of its inputs is a 1 is called a(n):
A) OR gate
B) AND gate
C) NOR gate
D) NOT gate
  • 2. How many truth table entries are required for a 3-input NAND gate?
A) 6
B) 27
C) 3
D) 9
  • 3. How many flip flops are contained in a 7474 IC?
A) 3
B) 4
C) 1
D) 2
  • 4. The basic logic gate whose output is the inverse or complement of its input is called a(n):
A) NOT gate
B) NAND gate
C) AND gate
D) XOR gate
  • 5. A resistor with colour code "Red Red Orange Gold" has a value of:
A) 22MΩ
B) 22kΩ
C) 220kΩ
D) 2200Ω
  • 6. A resistor with colour code " Yellow Red Red Gold" has a value of:
A) 4.2kΩ
B) 430Ω
C) 420Ω
D) 240kΩ
  • 7. The 3 pins of a bipolar transistor are called the:
A) Collector, Emitter and Base
B) Plate, Electrode and Collector
C) Source, Drain and Gate
D) Collection, Bass, Gate
  • 8. The total resistance of the following resistor combination is:
A) 680Ω
B) 340Ω
C) 920Ω
D) 1360Ω
  • 9. The total resistance of the following resistor combination is:
A) 450Ω
B) 9000Ω
C) 900Ω
D) 225Ω
  • 10. The voltage Vout of the voltage divider circuit is:
A) 9 volts
B) 3 volts
C) 6 volts
D) 4.5 volts
  • 11. The total current flowing through this circuit is:
A) 0.01 A
B) 100mA
C) 1 A
D) 1mA
  • 12. The total capacitance of the following capacitor combination is:
A) 50µF
B) 100µF
C) 200µF
D) 1000µF
  • 13. The total capacitance of the following capacitor combination is:
A) 1000µF
B) 50µF
C) 100µF
D) 200µF
  • 14. The total capacitance of the following capacitor combination is:
A) 250µF
B) 150µF
C) 100µF
D) 50µF
  • 15. An Infra-Red transmitter usually transmits at a frequency of:
A) 38kHz
B) 5kHz
C) 28kHz
D) 40kHz
  • 16. The following charging capacitor circuit has a Time Constant of:
A) 10 seconds
B) 3 seconds
C) 5 seconds
D) 2 seconds
  • 17. The capacitor in the circuit is fully charged after:
A) 50 seconds
B) 40 seconds
C) 20 seconds
D) 10 seconds
  • 18. A 555 IC can be operated in:
A) Astable Mode
B) Bistable Mode
C) All three modes
D) Monostable Mode
  • 19. If you decrease the AREA of the plates of a capacitor, you:
A) Decrease the capacitance
B) Short circuit the capacitor
C) Increase the capacitance
D) Increase the energy storage of the capacitor
  • 20. A 7805 Voltage regulator can provide a constant output voltage of:
A) 5 volts
B) 17 volts
C) 12 volts
D) 78 volts
Studenti hanno provato anche :

Creato con That Quiz — il sito di generazione di test di matematica con risorse per altre aree tematiche.