Geology and Geophysics
2018 · Paper 1
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Complete GATE GG-1 2018 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 61–63 of 65. Imported answers require review unless explicitly marked reviewed.
Question 51
Open questionPART-B GEOLOGY (SECTION 1)NAT2 marksNeeds review
For a granitic rock mass, joint set number (Jn) = 9, joint water reduction factor (Jw) = 1, joint alteration number (Ja) = 1, stress reduction factor (SRF) = 1, rock quality designation (%) = 84 and joint roughness number (Jr) = 3. The Q-value as per Barton’s Q-system of rock mass classification (year 1974) is ____________.
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Open questionPART-B GEOLOGY (SECTION 1)NAT2 marksNeeds review
A sun synchronous satellite is at an altitude of 300 km and the spectrometer makes an angular coverage angle of 12°. The Swath (FOV) of the satellite is ____________ km.
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Open questionPART-B GEOLOGY (SECTION 1)NAT2 marksNeeds review
The stability field boundary between two minerals A and B is linear with a positive slope in P-T space. The molar entropy of A and B are 85.5 and 92.5 Joules K
, respectively and their respective molar volumes are 35.5 and 38.2 cc. The slope of the phase boundary in P-T space is ____________ bar K
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