Which outcome occurs when a refrigeration evaporator becomes excessively ice-covered due to moisture accumulation?

💡 Explanation

When an evaporator ices over, the insulative properties of ice inhibit heat transfer because ice reduces the effective surface area, preventing efficient heat absorption from the surroundings. Therefore, reduced heat transfer occurs, rather than increased motor current, refrigerant over-pressurization, or short-cycling, which involve different failure modes.

• Which outcome occurs when exceeding a doubly-fed induction generator's breaker capacity after a grid fault?
• Which outcome occurs when an aircraft's airspeed drops below Vmc during a single-engine landing?
• In a three-phase distribution transformer supplying unbalanced residential loads, which mechanism introduces circulating currents in the delta winding?
• Which outcome occurs when an aircraft's automatic stabilizer abruptly disengages during landing approach due to unexpected wind shear?
• Which risk dramatically increases when attempting to synchronize an out-of-phase three-phase power grid involving closing a circuit breaker?
• Which risk increases when post-tensioned concrete slab tendons experience grout voids after stressing?