产品的维修度是表示产品（）。Ⅰ.对维护、修理的适应性；Ⅱ.维修的

【名词&注释】

适应性(adaptability)、故障率(failure rate)、电加热(electric heating)

[单选题]产品的维修度是表示产品（）。Ⅰ.对维护、修理的适应性；Ⅱ.维修的难易程度

A. 仅Ⅰ对
B. 仅Ⅱ对
C. Ⅰ或Ⅱ对
D. Ⅰ，Ⅱ都不对

查看答案&解析 查看所有试题

学习资料：

[单选题]能反映故障概率变化情况的是（）。Ⅰ.故障率λ（t）；Ⅱ.密度函数f（t）

A. 仅Ⅰ对
B. 仅Ⅱ对
C. Ⅰ，Ⅱ都对
D. Ⅰ，Ⅱ都不对

[单选题]滑油系统预热的方式有（）。Ⅰ.蒸汽加热；Ⅱ.电加热；Ⅲ.分油机分油加热；.Ⅳ.热水加热

A. Ⅰ+Ⅱ
B. Ⅰ+Ⅳ
C. Ⅰ+Ⅲ
D. Ⅰ+Ⅲ+Ⅳ

[单选题]Which of the following firing order may be used for an 6 cylinder engine?（）

A. 1-2-3-4-5-6
B. 1-2-3-6-5-4
C. 1-5-3-6-2-4
D. 1-3-4-5-6-2

[单选题]For Vee-form engines, （） is shaped to given two slopping surface on which （） are placed at the correct relative angle to each other.

A. the bottom of the column；the cylinder blocks
B. the top of the column；the cylinder heads
C. the top of the column；the cylinder blocks
D. the bottom of the column；the cylinder head

[单选题]The procedures recommended for auxiliary boilers having high salinity include （）.

A. treating with oxygen scavengers
B. securing the boiler and giving it a blowing down
C. increasing the pH
D. reducing the phosphate level

[单选题]The part of a windlass which physically engages the chain during hauling or paying out is the（）.

A. devil's claw
B. bull gear
C. wildcat
D. cat head

本文链接：https://www.51bdks.net/show/opngq5.html