Recent questions tagged gatexe-2026

Which of the following is/are step(s) followed in energy audit?WalkthroughCollection of past energy consumption dataEvaluation of energy conservation measuresPreparation ...

An energy conservation project requires an initial investment of ₹$50,000$ with an expected annual operation and maintenance cost of ₹$5,000$. This project is expected to...

The open circuit voltage, short circuit current, and the fill factor of a solar photovoltaic module are $45 \mathrm{~V}$, $9 \mathrm{~A}$, and $0.8$, respectively. The ma...

Energy is extracted from a fully charged supercapacitor bank and the voltage of this system drops to $25 \%$ of its initial value. The energy extracted with respect to in...

A grid-connected induction generator is used to generate electricity from a wind turbine. Which one of the following statements is true while the generator is feeding pow...

A hydro turbine works under a head of $20$ $\mathrm{m}$ and has a maximum volume flow rate of $4 \mathrm{~m}^{3} \mathrm{~s}^{-1}$ and a speed of $750$ $\mathrm{rpm}$. De...

Which one of the following defines the angle made by the line joining the centers of the sun and the earth with its projection on the equatorial plane?DeclinationLatitude...

Which one of the following is the major environmental problem associated with the production of coal-bed methane?Contamination of waterEmission of Carbon dioxideGeneratio...

A radioactive isotope sample has a decay constant $\lambda= 2.31 \times 10^{-4} \text{year}^{-1}$. Initially the sample contains $8000 \times 10^{15}$ atoms. The sample d...

A fuel with composition by mass is given as $78 \%$ carbon $(\mathrm{C}), 16 \%$ hydrogen $\left(\mathrm{H}_{2}\right)$, $3.2 \%$ sulphur $(\mathrm{S}), 1.6 \%$ oxygen $\...

Which of the following statements is/are FALSE concerning a wind turbine generation system?The rotor power coefficient, $C_{p}$, of a multi-blade turbine is a monotonical...

Which of the following options is/are true regarding the behaviour of a typical solar photovoltaic cell?Ideal current sourceCurrent limited voltage sourceVoltage limited ...

A $75$ $\mathrm{kWh}$ electric vehicle battery pack made of lithium-ion batteries has $4,800$ individual cells in a series-parallel combination, with $120$ cells in serie...

A nonlinear load connected to a sinusoidal voltage source (of peak value $V_{m}$ and $50$ $\mathrm{Hz}$ frequency) draws a quasi-square wave shaped current (of maximum va...

A resident has ₹ $50,000$ to purchase a $5$-star rated air conditioner with a life of $10$ years. The annual energy cost savings (in ₹) needed to recover this investment ...

A country’s annual crude oil production in the year $2024$ was $150$ million tons and that in $2022$ was $141$ million tons. The proven crude oil resources in $2024$ of t...

The useful heat gain in Watt (rounded off to one decimal place) of a solar flat plate collector using Hottel-Whillier-Bliss equation is $\_\_\_\_$.Assume:Collector heat r...