Ea & Ham Club Online Quiz

40 Questions | Total Attempts: 90

SettingsSettingsSettings
Ea & Ham Club Online Quiz - Quiz

.


Questions and Answers
  • 1. 
    What does the AREF (Analog Reference pin) on the arduino board do?
    • A. 

      1. It sets the lower voltage limit as an external reference for analog input pins.

    • B. 

      2. It sets the upper voltage limit as an internal reference for analog input pins.

    • C. 

      3. It sets the lower voltage as an internal reference for analog input pins.

    • D. 

      4. It sets the upper voltage as an external reference for analog input pins.

  • 2. 
    What from below is not usually a part of arduino environment?
    • A. 

      1. voltage regulator

    • B. 

      2. opto-coupler

    • C. 

      3. USB chip

    • D. 

      4. PWM control chip

  • 3. 
    USB cable which we use employes:
    • A. 

      1. Parallel data-bits transfer

    • B. 

      2. serial communication

    • C. 

      3. peer to peer data transfer

    • D. 

      4. universal data transfer

  • 4. 
    In a general circuit power stored from the source and returned to the source is called:
    • A. 

      1. Active power

    • B. 

      2. Reactive power

    • C. 

      3. True power

    • D. 

      4. Apparent power

  • 5. 
    If an open capacitor is connected across an ohmmeter:
    • A. 

      1. needle will stay on zero

    • B. 

      2. needle will stay on infinity

    • C. 

      3. needle will move from infinity to zero

    • D. 

      4. needle will move from zero to infinity

  • 6. 
    Arduino Input voltage should be in between :
    • A. 

      1. 7-12 volts

    • B. 

      2. 5-10 volts

    • C. 

      3. 9-15 volts

    • D. 

      4. 5-7 volts

  • 7. 
    Digital to analog converter is application of:
    • A. 

      1. scaling adder

    • B. 

      2. Voltage to current converter

    • C. 

      3. Non-inverting amplifier

    • D. 

      4. Adjustable bandwidth circuit

  • 8. 
    A zero level detector is a:
    • A. 

      1. comparator with sine wave output

    • B. 

      2. limiter

    • C. 

      3. comparator with trip point set to zero

    • D. 

      4. Peak detector

  • 9. 
    When an ohmmeter positive probe is connected to NPN base and other probe connected to collector, reading will be:
    • A. 

      1. low resistance

    • B. 

      2. high resistance

    • C. 

      3. open/infinite

    • D. 

      4. zero

  • 10. 
    Convert 1011010 to hexadecimal:
    • A. 

      5A

    • B. 

      5B

    • C. 

      5C

    • D. 

      5F

  • 11. 
    Which of the following is example of Standardized SOP form of boolean equation representation with 3 inputs?
    • A. 

      1. A’+B

    • B. 

      2. A.B+A’.B.C

    • C. 

      3. (A’+B+C’)(A+B+C)

    • D. 

      4. A’.B.C + A’.B’.C’

  • 12. 
    For an application like low sensitivity obstacle avoider , which of the following is most appropriate?
    • A. 

      1. Ultrasonic Sensor

    • B. 

      2. Infrared Sensor

    • C. 

      3. obstacle detecting sensor

    • D. 

      4. Laser sensor

  • 13. 
    Where is the nearest HAM radio station around us?
    • A. 

      1. In warangal collectoriate

    • B. 

      2. Inside Kazipeth station

    • C. 

      3. On the TV tower hill near kazipeth station

    • D. 

      4. In NITW

  • 14. 
    What does 32 in atmega32 IC represent?
    • A. 

      1. Programmable flash memory

    • B. 

      2. Total onboard memory

    • C. 

      3. No. of bits which can be processed by the board parallely

    • D. 

      4. It’s just a number to identify the IC.

  • 15. 
    If you are a circuit enthusiast you must have seen this definitely on your home circuits.What is it? 
    • A. 

      1. It’s an IC called COB Ic,which is implemented like that..

    • B. 

      2. It’s an industrial shortcut for doing the complex circuit connections

    • C. 

      3. It is an insulation material provided for separating the high voltage difference pins.

    • D. 

      4. It is an organic polymer deliberately put to avoid onboard short circuits.

  • 16. 
    The dc current in through each diode in bridge rectifier equals:
    • A. 

      1. ½ load current

    • B. 

      2. the load current

    • C. 

      3. ¼ load current

    • D. 

      4. depends on which diodes are forward biased

  • 17. 
    Which of the following is correct for gated D flipflop?
    • A. 

      1. The Q output is SET or RESET when the D input goes high or low.

    • B. 

      2. The ouput complement follows the input when enabled

    • C. 

      3. Only one of the inputs can be HIGH at a time

    • D. 

      4. The output toggles only if one of the inputs is held high.

  • 18. 
    A logic probe is placed at the output of the gate and the display indicator is dim.A logic pulsor is touched at each of the inputs still the output does not indicate any change.What might be the problem?
    • A. 

      1. The display indicator is dim might indicate that power supply to Ic is low.

    • B. 

      2. the output of the gate might be open.

    • C. 

      3. The gate might be a tristate device.

    • D. 

      4. The low indication shows bad ground connection.

  • 19. 
    Can the Embedded C commands be used in arduino environment directly?
    • A. 

      1. Yes.

    • B. 

      2. No.

    • C. 

      3. We will have to include additional libraries.

    • D. 

      4. Some commands might work.

  • 20. 
    Which command is used in embedded C to write the data to the output pins?
    • A. 

      1. WRITE

    • B. 

      2. data_set

    • C. 

      3. PORT

    • D. 

      4. Serial.select()

  • 21. 
    A smartphone developed by SGP Technologies, that provides encryption as well as other security privacy features for phone calls, emails, texts, and internet browsing.It provides internet access through VPN. The phone runs a modified version of Android called PrivatOS, forked from Android 4.4.2, that comes with a bundle of security-minded tools.
    • A. 

      1. The cryptdroid

    • B. 

      2. SGP cryptic

    • C. 

      3.The blackphone

    • D. 

      4. Privet

  • 22. 
    Li-Fi is bidirectional, high speed and fully networked wireless communications, like Wi-Fi using light. Li-Fi is a subset of optical wireless communication (OWC) and can be a complement to Wi-Fi .what is the medium it uses to deliver networked, mobile, high-speed communication in a similar manner as Wi-Fi?
    • A. 

      1. Leds

    • B. 

      2. Microwave spectrum

    • C. 

      3. Rf spectrum

    • D. 

      4. optical fibers

  • 23. 
    Present ages of Sameer and Anand are in the ratio of 5 : 4 respectively. Three years hence, the ratio of their ages will become 11 : 9 respectively. What is Anand's present age in years?
    • A. 

      1. 36

    • B. 

      2. 21

    • C. 

      3. 24

    • D. 

      4. 25

  • 24. 
    A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is:        
    • A. 

      1. 50km/hr

    • B. 

      2. 45km/hr

    • C. 

      3. 35km/hr

    • D. 

      4. 20km/hr

  • 25. 
    A transformer that develops the high voltage in a homw television is commonly called?
    • A. 

      Tesla coil

    • B. 

      Yoke

    • C. 

      Flyback

    • D. 

      Van de graff

Related Topics
Back to Top Back to top