List of top Questions asked in Tamil Nadu Common Entrance Test

Which of the following does not have a negative effect on PFK?
Which of the following inhibits acetyl-coA carboxylase in fatty acid synthesis?
Which of the following behaves as a precursor for the synthesis of TGL and PL?
Find \(i(t)\) in the following circuit, given \( R = \frac{1}{3} \, \Omega \), \( L = \frac{1}{4} \, H \), \( C = 3 \, F \), and \( v(t) = \sin 2t \) 
RLC circuit with sinusoidal voltage,
Find \( I_1 \), \( I_2 \), and \( I_3 \) for the following circuit. 
Find I1, I2, and I3 for the following circuit
Find \( V_s \) and \( R_s \) for the following circuit 
Vs and Rs for the following circuit
The voltage \( V = 12 \, \text{V} \) (cos \( 60^\circ + 45^\circ \)) is applied to a \( 0.1 \, \text{H} \) inductor. Find the steady-state current through the inductor.
Consider the negative feedback system shown in the figure with \( R_o \) as output resistance of the feedback amplifier. The overall output resistance of the negative feedback amplifier is 
output resistance of the feedback amplifier
For the MOSFET transistor shown in the below figure, operating region of the transistor is
MOSFET transistor
What is the slope of the output load line characteristics for the circuit shown in the below Figure? 
slope of the output load line characteristics for the circuit
What is the minimum voltage gain required for the Colpitts Oscillator shown in the below figure for sustained oscillations? minimum voltage gain required for the Colpitts Oscillator
What are the invalid inputs in the following flip flop? 
invalid inputs in the following flip flop
Which is the Boolean expression at F in the following figure? 
boolean expression at F in the following figure
What is the frequency of the waveform at Y? 
frequency of the waveform at Y
Which is the Hexadecimal equivalent of \( 1100101011101011_2 \)?
The basic step of an 8-bit DAC is 12.4 mV. If the binary input \( 00000000 \) represents 0V, determine the output if the input is \( 10110111 \).
Which IC is a fixed positive voltage regulator?
Which is the correct option for the circuit shown below to get an output \( V_o \) as \( -V_{cc} \)? 
Vref < Vin
What is the output voltage \( V_o \) for the circuit shown below? 
output voltage Vo for the circuit

Which port in 8051 microcontroller requires external pull-up as shown below? 
8051 microcontroller

The instruction XLAT in 8086 microprocessor is used to
In 8085 microprocessor, two address lines namely A13 and A6 have become faulty and are stuck at logic 0. Which of the following address locations cannot be accessed in the memory?
For the given 8086 microprocessor instructions below, which of the following is an invalid instruction?
Consider a system output \( y(t) \) is related to its input \( x(t) \) as, \( y(t) = x(t) + \cos (x(t)) \). This system is
A continuous system is described by \( y(t) = x(t) \cos(200 \pi t) \). If \( x(t) \) is a two-tone signal with frequencies 25 Hz and 50 Hz, then the frequency components present in \( y(t) \) will be