The angle to which a floating ship，with a negative initial metacentric height，lies while at rest in still water is the angle of（）.
D
举一反三
- The maximum angle at which the intact stability curves are valid for ship’s is the angle for（）.
- What is the angle of repose? A: The angle of an inclined rock layer measured from a horizontal line B: The angle of the slip plane from a slide C: The angle of plunge into the interior D: The steepest angle at which a material remains at rest
- Many sheath-screw davits have markings to indicate the maximum angle to which they should be cranked out. If the angle is exceeded，the davit（）.
- ZEMAX支持下列哪种视场形式( )。 A: field angle B: object height C: paraxial image height D: eal image height
- Which is not the method of finding the initial basic feasible solution of transportation problem. ( ) A: Northwest angle method B: Minimum element method C: Vogel method D: Closed loop method
内容
- 0
The delayed value of rotation angle of the output shaft when the rotation of input shaft turns from positive to negative is . A:
- 1
The sum of rake Angle, clearance angle and wedge Angle is ( ).The sum of the major cutting edge angle, minor cutting edge angle, and tool included angle. is ( ) A: 90 ° , 180 ° B: 90 ° , 90 ° C: 180 ° , 180 ° D: 180 ° , 90 °
- 2
Using a right-hand hob with the lead angle ω cuts a left-hand gear with the helix angle β , hob swivel-setting angle δ is: A: ω B: β C: β-ω D: β+ω
- 3
按Angle 分类法以下何为正确 A: AngleⅠ类是正常咬合 B: AngleⅡ类多为反合 C: AngleⅢ类多为深覆盖 D: Angle Ⅲ 类的下颌为远中咬合关系 E: 右侧为AngleⅢ类关系,左侧为Ⅰ类关系时也属Angle Ⅲ 类错合
- 4
The transmission angle is always numerically equal to the angle between the coupler and rocker.