题目内容

Following the failure of one turbocharger on a large, crosshead, main propulsion diesel engine, fitted with multiple turbochargers, which of the following actions should be taken prior to further operation of the engine? ()

A. Blank off the exhaust gas inlet to the damaged turbocharger
B. Secure cooling and lubrication to the damaged turbocharger
C. Lock the rotor of the damaged turbocharger
D. All of the above

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何谓异嗜性抗原?何谓同种异型抗原?

企业应在易燃、易爆、有毒有害等危险场所的醒目位置设置()。

A. 警告牌
B. 安全标志
C. 告知牌

对于玻璃钢,从成型的方法来看,模压法和缠绕法的玻璃纤维含量高,因此机械强度()。

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