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| Last visit was: 22 Apr 2026, 12:19 |
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Difficulty:
Question Stats:
36% (03:06) correct
64%
(03:04)
wrong
based on 1235
sessions
History
| Yes | No | |
| The first American in space flew in a mission with a Mercury-Redstone launch vehicle. | ||
| The Atlas-Agena launch vehicle was used on at least one flight that was not affiliated with Projects Mercury, Gemini, or Apollo. | ||
| The Saturn IB launch vehicle’s first flight featured 3 crew members. |
Difficulty:
Question Stats:
92% (01:29) correct
8%
(01:29)
wrong
based on 991
sessions
History
| The average (arithmetic mean) of launch vehicle heights. | |
| The range of launch vehicle heights. | |
| The median of launch vehicle heights. | |
| The average (arithmetic mean) of launch vehicle diameters. | |
| The range of launch vehicle diameters. |
Difficulty:
Question Stats:
67% (02:46) correct
33%
(02:41)
wrong
based on 1060
sessions
History
| Yes | No | |
| The Saturn V has the greatest height-to-mass ratio of the launch vehicles used in Projects Mercury, Gemini, and Apollo. | ||
| For the diameters of the launch vehicles used in Projects Mercury, Gemini, and Apollo, the median is equal to the mode. | ||
| Of the launch vehicles used in Projects Mercury, Gemini, and Apollo, the one with the highest mass-to-payload-capacity ratio was used in Project Apollo. |
| If we know that only M-R was used | YES |
| If we know that M-R could have been used or Atlas | NO |
| We know that M-R was not used | NO |
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