11. Although the liquid-level indicating system is installed, a _______ is generally installed for the traditional tank level measurement. (A) liquid sensing tube (B) air purge tube (C) sounding tube (D) capillarity tube

15. The ideal diesel cycle consists of an isentropic compression process, a constant-pressure combustion process followed by an isentropic expansion process, and finally a constant-volume exhaust process. Based on the above description, which statement is false? (A) The isentropic expansion process is followed by a constant-volume exhaust process. (B) The isentropic compression process takes place before the constant-pressure combustion process. (C) The isentropic expansion process takes place before the combustion process in order to produce the work output. (D) The constant-pressure combustion process takes place between the isentropic compression process and the isentropic expansion process.

11. Although the liquid-level indicating system is installed, a _______ is generally installed for the traditional tank level measurement.
(A) liquid sensing tube
(B) air purge tube
(C) sounding tube
(D) capillarity tube

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