List of top Questions asked in TS PGECET

Which process is commonly used in secondary treatment to break down organic matter?
Match the following with respect to region of convergence
\( x(n) \) ROC
AInfinite duration causal sequenceIEntire z-plane except at \( z = 0 \)
BFinite duration causal sequenceIIEntire z-plane except at \( z = \infty \)
CInfinite duration anticausal sequenceIII\( |z| > \alpha \), exterior of a circle of radius \( \alpha \)
DFinite duration anticausal sequenceIV\( |z| < \beta \), interior of a circle of radius \( \beta \)
What is the purpose of primary treatment in wastewater treatment plants?
Which of the following is not correct with respect to Z-transforms?
Which of the following method is not used in water purification systems?
The condition for orthogonality of two functions \( x_1(t) \) and \( x_2(t) \) in terms of correlation is
Consider a causal LTI system with impulse response \( h(t) = e^{-bt}u(t) \). Find the output of the system for an input \( x(t) = 3e^{-at}u(t) \).
The Fourier transform of the following signal is \[ x(t) = \begin{cases} 1+\cos \pi t & |t|<1 \\ 0 & |t|>1 \end{cases} \]
How does soil salinity affect plant growth?
Which of the following statement is not correct?
Which of the following is a key component of Cation Exchange Capacity of the soils?
The amplitude and phase spectrum of exponential Fourier Series about vertical axis respectively, is
The exponential Fourier series coefficient \( C_{-n} \) in terms of trigonometric Fourier coefficients is
Ozone is good
Which photochemical oxidants are formed by the action of sunlight on nitrogen oxides and reactive hydrocarbons?
Which type of satellite sensor captures data in various spectral bands, including visible, infrared and microwave?
The boundary between the troposphere and stratosphere is known as the
Which of the following is a basic principle of surveying?
What is the process of measuring water discharge in rivers and streams?
Deep-ocean currents are driven by differences in the
Acid rain is primarily caused by the emission of which two gases into the atmosphere?
Environmental chemistry mainly deals with the study of
What is the scope of environmental chemistry in our daily life?
Which of the following is a major group of microbes involved in nitrogen fixation?
In anaerobic wastewater treatment the microorganisms present are?