Under the Orbital Spaceflight Authority's safety regulations, any commercial satellite ope… — LSAT

Under the Orbital Spaceflight Authority's safety regulations, any commercial satellite operator granted a low-Earth orbit constellation license is required to equip every deployed operational unit with an autonomous collision-avoidance thruster. An autonomous collision-avoidance thruster is approved for operational deployment only if it has passed cryogenic propellant validation. Furthermore, no propulsion mechanism that passes cryogenic propellant validation relies on single-phase chemical ignition. Last year, the Orbital Dynamics Consortium was granted a low-Earth orbit constellation license, and several of its proprietary propulsion units relied on single-phase chemical ignition.

If the statements above are true, which one of the following must be true?

A
Any propulsion mechanism developed by the Orbital Dynamics Consortium that does not rely on single-phase chemical ignition is approved for operational deployment as an autonomous collision-avoidance thruster.
B
The Orbital Dynamics Consortium will be unable to deploy any operational units under its low-Earth orbit constellation license.
None of the Orbital Dynamics Consortium’s proprietary propulsion units that rely on single-phase chemical ignition are approved for operational deployment as autonomous collision-avoidance thrusters.Answer
D
Passing cryogenic propellant validation is sufficient to guarantee that an autonomous collision-avoidance thruster will be approved for operational deployment.
E
The Orbital Dynamics Consortium was granted a low-Earth orbit constellation license primarily because of the safety features of its proprietary propulsion units.

Answer

None of the Orbital Dynamics Consortium’s proprietary propulsion units that rely on single-phase chemical ignition are approved for operational deployment as autonomous collision-avoidance thrusters.

The stimulus establishes a conditional chain: an autonomous collision-avoidance thruster receives approval for operational deployment only if it has passed cryogenic propellant validation, and any unit passing this validation cannot rely on single-phase chemical ignition (Approved -> Cryogenic Validation -> No Chemical Ignition). The contrapositive establishes that any unit relying on single-phase chemical ignition did not pass cryogenic validation and therefore cannot be approved for operational deployment as an autonomous collision-avoidance thruster (Chemical Ignition -> No Cryogenic Validation -> Not Approved). Thus, for the consortium's units that rely on single-phase chemical ignition, none can be approved.

Step-by-Step Solution

Map the conditional statements from the stimulus into formal logical relationships.

Approved Autonomous Thruster -> Passed Cryogenic Validation -> Does NOT Rely on Single-Phase Chemical Ignition.

Establishing the chain of necessary conditions allows for rigorous deduction across multiple premises.

Derive the contrapositive of the full conditional chain.

Relies on Single-Phase Chemical Ignition -> Failed/Did Not Pass Cryogenic Validation -> NOT Approved for Operational Deployment as an Autonomous Collision-Avoidance Thruster.

The contrapositive of any valid conditional chain is logically equivalent to the original chain.

Apply the factual premises regarding the Orbital Dynamics Consortium to the deduced contrapositive.

Since several proprietary propulsion units rely on single-phase chemical ignition, none of those specific units can be approved for operational deployment as autonomous collision-avoidance thrusters.

Direct instantiation of a known fact into a valid contrapositive guarantees the truth of the conclusion.

Key Concept

Conditional Logic Chaining and Contrapositive Deduction

Estimated Time:1m 45s

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