Engineering Sciences
2026 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE XE 2026 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 196–197 of 197. Imported answers require review unless explicitly marked reviewed.
Question 196
Open questionXE-INAT2 marksNeeds review
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 the country are 12,000 million tons. Consider an exponential growth rate model with a growth rate as compound annual growth rate during 2022-2024. The crude oil reserve will last for __________ years. (rounded off to nearest integer)
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 197
Open questionXE-INAT2 marksNeeds review
The useful heat gain in Watt (rounded off to one decimal place) of a solar flat plate collector using Hotel-Whillier-Bliss equation is__________________________.
Assume:
Collector heat removal factor = 0.85
Absorber plate area = 1.5 m²
Absorbed solar flux by the absorber plate = 600 Wm⁻²
Overall loss coefficient = 4 Wm⁻²K⁻¹
Water inlet temperature = 60 °C
Ambient temperature = 25 °C
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer