Grade 6

The most commonly used semiconductor element is

• Silicon

• Germanium

• Gallium

• Carbon

What is the purpose of the dot or notch on an integrated circuit (IC) component?

• To indicate the manufacturing date of the IC.

• To represent the polarity of the IC.

• It is indication of how to connect the IC on PCB

• To indicate the IC's operating voltage.

Which of the following statement is example of OR gate?

• It opens the door if both sensors detect an obstacle.

• It opens the door only if both sensors detect the presence of a vehicle.

• It opens the door if either sensor detects the presence of a vehicle.

• It opens the door only if both sensors detect the absence of an obstruction.

What will this gate's output be?

• 0

• 1

• None of the above

How many gates are there in IC 7408 ?

• 1

• 2

• 3

• 4

What is this logic gate?

• NOT gate

• AND gate

• OR gate

• None of the above

The inverter is__________

• 
  A NOT gate

• an AND gate

• an AND gate

• None of the above

What the output of the logic gate connected in series ?

• 0

• 1

• None of the above

NAND Gate is called a universal logic element, because

• It is used by everybody

• Any logic function can be executed by NAND Gate alone

• All the minimisation techniques are applicable to optimum NAND Gate realisation

• None of the above

If the inputs to a NOR gate are both LOW (0), what is the output?

• HIGH (1)

• LOW (0)

• Can't be determined

• Depends on the specific NOR gate implementation