context: Grissom, White, and Chaffee decided to name their flight Apollo 1 as a motivational focus on the first manned flight. They trained and conducted tests of their spacecraft at North American, and in the altitude chamber at the Kennedy Space Center. A "plugs-out" test was planned for January, which would simulate a launch countdown on LC-34 with the spacecraft transferring from pad-supplied to internal power. If successful, this would be followed by a more rigorous countdown simulation test closer to the February 21 launch, with both spacecraft and launch vehicle fueled.
question: LC-34 এ সিমুলেট করার জন্য প্লাগ-আউট পরীক্ষা কি করা হয়েছিল?
answers: launch countdown simulate a launch countdown on simulate a launch countdown simulate a launch countdown launch countdown