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Browse complete papersConsider the following code snippet in C programming language.
int n = 5;
int m = n++;
What is the value of m after execution?
6
0
1
5
Correct answer
6
In an LCD display, what is the main purpose of the liquid crystal layer positioned between the two glass plates?
To store electrical energy for the display circuit
To control the transmission of light through the display
To increase the operating voltage of the display segment
To act as a light source for displaying characters
Correct answer
To store electrical energy for the display circuit
Which arrangement is used in a CRT of Cathode Ray Oscilloscope (CRO) to achieve proper electrostatic focusing of the electron beam?
A cathode at high potential followed by only high potential accelerating anodes
Two accelerating anodes at equal potential without a focusing anode
A fluorescent screen at lower potential placed after the high potential accelerating anodes
A focusing anode at lower potential placed between two high potential accelerating anodes
Correct answer
A cathode at high potential followed by only high potential accelerating anodes
Which of the following is a false statement regarding the non-inverting amplifier using OP-AMP?
It provides higher magnitude gain for the same resistor values when compared to the inverting amplifier
It offers high input impedance
It is ideal for use in instrumentation and buffer circuits
It is limited to handling only DC signals
Correct answer
It provides higher magnitude gain for the same resistor values when compared to the inverting amplifier
A single-phase AC circuit contains a resistive inductive load. The current lags behind the voltage by an angle greater than 0° and less than 90°. What is the power factor of the circuit called?
Lagging power factor
Leading power factor
Zero power factor
Unity power factor
Correct answer
Lagging power factor
What is the main reason high-frequency Carrier signals are used in modulation?
To eliminate the need for a receiver.
To make the signal move at the speed of light.
To reduce the physical size of the required antenna.
To amplify the original message signal.
Correct answer
To eliminate the need for a receiver.
Which internal component of the IC 555 is responsible for resetting the flip-flop when the voltage at Pin 6 exceeds two-thirds of Vcc supply?
The Lower Comparator
The Upper Comparator
The Voltage Divider Network
The Discharge Transistor
Correct answer
The Lower Comparator
In a 4-to-2 priority encoder, if both D1 and D3 are HIGH, which input determines the output and why?
D3 determines the output because it has higher priority
The output is undefined due to multiple actives
Both D1 and D3 set the output together
D1 determines the output because it is the lower number
Correct answer
D3 determines the output because it has higher priority
Which action is the most important for maintaining accurate measurements in an instrument?
Operating the instrument always at maximum frequency range.
Reduce the sensitivity of the instrument
Calibrate the instrument using a standard reference
Setting the amplifier gain of the instrument to zero
Correct answer
Operating the instrument always at maximum frequency range.
What is the output the given C language code snippet?#includeint main(){ int x[] = {10,20,30}; int *p = x; p++; printf("%d",*p); return 0;}
10
Garbage value
30
20
Correct answer
10