20 min Score: 0 Attempted: 0/20 Subscribe 1. The unit of electric current is: (A) Volt (B) Ohm (C) Ampere (D) Watt 2. Which instrument is used to measure electric current? (A) Voltmeter (B) Ohmmeter (C) Ammeter (D) Wattmeter 3. The unit of electric voltage is: (A) Ampere (B) Ohm (C) Volt (D) Joule 4. … Read more
20 min Score: 0 Attempted: 0/20 Subscribe 1. The primary function of an ADC is: (A) Convert a digital signal to an analog signal (B) Amplify an analog signal (C) Convert an analog signal to a digital signal (D) Store digital data 2. In an ADC, converting a continuous analog signal into a digital signal … Read more
20 min Score: 0 Attempted: 0/20 Subscribe 1. A multiplexer is a combinational circuit that is used to: (A) Select one of many inputs and send it to a single output (B) Perform arithmetic operations (C) Convert binary data into decimal (D) Store data 2. How many selection lines are required for a 4-to-1 multiplexer? … Read more
21 min Score: 0 Attempted: 0/21 Subscribe 1. A binary counter is used to: (A) Add two binary numbers (B) Store a sequence of bits (C) Count the number of clock pulses (D) Convert binary to decimal 2. A 4-bit binary counter can count up to: (A) 4 (B) 8 (C) 32 (D) 16 3. … Read more
20 min Score: 0 Attempted: 0/20 Subscribe 1. In an SR flip-flop, what happens when both Set (S) and Reset (R) inputs are high? (A) The output is undefined (B) The output is reset to 0 (C) The output is set to 1 (D) The output toggles 2. Primary limitation of the SR flip-flop: (A) … Read more
22 min Score: 0 Attempted: 0/22 Subscribe 1. The output of an AND gate is high (1) when: (A) At least one input is low (0) (B) At least one input is high (1) (C) All inputs are low (0) (D) All inputs are high (1) 2. The output of an OR gate is high … Read more
27 min Score: 0 Attempted: 0/27 Subscribe 1. The base of the binary number system is: (A) 10 (B) 2 (C) 8 (D) 16 2. The base of the decimal number system is: (A) 2 (B) 10 (C) 8 (D) 16 3. The base of the hexadecimal number system is: (A) 2 (B) 8 (C) … Read more
30 min Score: 0 Attempted: 0/30 Subscribe 1. Digital electronics deals primarily with signals that are: (A) Continuous (B) Analog (C) Mixed (D) Discrete 2. A binary digit is also known as: (A) Byte (B) Nibble (C) Bit (D) Word 3. The two possible states in a binary system are: (A) High and low (B) … Read more
20 min Score: 0 Attempted: 0/20 Subscribe 1. Wave shaping is the process of: (A) Amplifying signals (B) Changing the shape of a signal waveform (C) Converting DC signals to AC signals (D) Filtering noise from a signal 2. Purpose of a clipping circuit in wave shaping: (A) Eliminate high-frequency noise (B) Change the waveform … Read more
20 min Score: 0 Attempted: 0/20 Subscribe 1. Wave shaping is the process of: (A) Amplifying signals (B) Filtering noise from a signal (C) Converting DC signals to AC signals (D) Changing the shape of a signal waveform 2. Purpose of a clipping circuit in wave shaping: (A) Limit the amplitude of the input signal … Read more