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WorksheetsBOOLEAN MASTER - Think Quick
Total questions: 20
Worksheet time: 6mins
A 2-input NOR gate is equivalent to a ________.
negative-OR gate
negative-AND gate
negative-NAND gate
none of the above
Select the gate equivalent to the following combination
AND
OR
NOT
NOR
Avalanche break down in a semi conductor diode occurs when …
Reverse bias exceeds a threshold value
Forward bias exceeds a threshold value
Forward current exceeds a threshold value
Potential barriers is reduced to zero
Efficiency of a center tapped full wave rectifier is _________
50%
46%
70%
81.2%
AB+B'C'
ABC+AB'C'
ABC'+A'B'C+A'BC
A'B'C+AB
For the given output signal find the circuit diagram
Determine the current ‘I’ in the circuit shown in fig. assume the diode is to be silicon and forward resistance of diode to be zero
12.5mA
7.5mA
7.3mA
7.13mA
How many input combinations would a truth table have for a six-input AND gate?
16
32
64
128
A semiconductor diode is reverse biased. Which statement is false?
P-side negative and n-side positive
diode resistance is high
diode capacitance is small
diode depletion region is small
The Ex-NOR is sometimes called the
parity gate
equality gate
inverted OR
parity gate or the equality gate
In the diagram below shows a circuit with some diodes , bulbs and switch connected to a Ac mains supply..
---->when the switch s is closed?
L1-OFF; L2-OFF
L1-0N; L2-ON
L1-0N; L2-OFF
L1-OFF; L2-ON
AB+AB+C
A'B'+AB+C'
AB'+A'B+C
AB+A'B+C'
If an input signal with non zero dc component is applied to a low pass RC network, then Dc component of the output will be..
same as that in the input
less than that in the input
more than that in the input
zero
How many degrees of phase shift
90
180
270
360
Which code is used in Karnaugh maps
BCD Code
Gray Code
Binary
Hexadecimal
Find the octal equivalent of hexadecimal number (FB2)
7652
7662
7658
7658
Convert the following SOP expression to an equivalent POS expression.
ABC+AB'C'+AB'C+ABC'+A'B'C
(A'+B'+C')(A+B+C')(A'+B+C)
(A+B+C)(A+B'+C)(A+B'+C')
(BC+A'B'+A'B+A'BC)
(BC+A'B'+A'+A'BC')
Determine the voltage at each node of the given circuit
58.1V, 23.2V
48.1V, 22.4V
25.3V, 70.4V
68.2V, 27.3V
The maximum positive and negative numbers that can be represented in 1’s complement using n-bits respectively
+(2^n-1 -1) and –(2^n-1 -1)
+2^n-1 and –(2^n-1 -1)
+(2^n-1 -1) and -2^n-1
None
Three bulbs each of 100W are connected in parallel across 220V,50hz. If one bulb burns out then
Remaining two will not operate
All the three will operate
There will be heavy current from the supply
Only remaining two will glow
