Deck 33: The 555 Timer

Question 1

The 555 timer operates on a limited range of voltages.

Answer 1

False

Question 2

In a 555 timer, pin #____ must be connected to a voltage which is less than one-third Vcc (the applied  voltage) to trigger the unit.

A) 1
B) 2
C) 3
D) 4

Answer 2

B

Question 3

The 555 timer is an eight-pin inline integrated circuit.

Answer 3

True

Question 4

In a 555 timer, when pin #____ turns the discharge on, it discharges the capacitor connected to pin  #____.

A) 4
B) 5
C) 6
D) 7

Question 5

In a 555 timer, pin #8 is identified with a notch at one end or a dot near one pin.

Question 6

In a 555 timer, if pin #____ is connected to Vcc through a variable resistor, the on time becomes  longer.

A) 5
B) 6
C) 7
D) 8

Question 7

The 555 timer operates on a percentage of the applied voltage.

Question 8

In a 555 timer, pin #____ is connected to the applied voltage of the circuit, which is known as Vcc.

A) 2
B) 4
C) 6
D) 8

Question 9

When a timer has an applied voltage of 12 volts it takes the more time then when the applied voltage is  only 6 volts.

Question 10

In a 555 timer, pin #____ is known as the discharge pin.

A) 4
B) 5
C) 6
D) 7