Architecture and Planning
2020 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE AR 2020 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 55–57 of 65. Imported answers require review unless explicitly marked reviewed.
Question 45
Open questionARNAT2 marksNeeds review
A room measures 5m × 10m × 3m (L×B×H). Consider the following conditions,
Total solar radiation incident on the roof surface = 800 W/m²
Outdoor air temperature = 40°C
Outside film coefficient of the roof surface = 18 W/m²
The outdoor mean radiant temperature is equal to outdoor air temperature
The minimum reduction required in solar absorptance of the roof (rounded off to two decimal places) to achieve a 20° reduction in sol-air temperature is ________
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Open questionARNAT2 marksNeeds review
The activity duration, early start, early finish, late start and late finish of the three activities ‘P’, ‘Q’ and ‘R’ are shown in the following figure. The independent float of activity ‘Q’ is ________
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Open questionARNAT2 marksNeeds review
A square based regular pyramid has all sides equal to 10 units. Its height (in the same units, rounded off to two decimal places) is ________
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