AET Digital Electronics

Question 1

What is the binary equivalent of the decimal number 13?

Accepted Answer

1101

Answer

Decimal 13 = 8+4+1 = 1101 in binary (8=1, 4=1, 2=0, 1=1).

Question 2

What logic gate outputs HIGH only when all inputs are HIGH?

Accepted Answer

AND gate

Answer

An AND gate produces a HIGH (1) output only when all of its inputs are simultaneously HIGH (1).

Question 3

What is the hexadecimal equivalent of binary 1010 1111?

Accepted Answer

AF

Answer

1010 = A and 1111 = F in hexadecimal, so 10101111 = AF hex.

Question 4

Which type of memory loses its data when power is removed?

Accepted Answer

RAM

Answer

RAM (Random Access Memory) is volatile and loses all stored data when power is removed from the device.

Question 5

What does the term 'bit' refer to in digital electronics?

Accepted Answer

A single binary digit (0 or 1)

Answer

A bit (binary digit) is the smallest unit of digital information, represented as either a 0 or a 1.

AET - Avionics Electronic Technicians Practice Test