Machine Design Quiz - Set 02 - ObjectiveBooks

# Machine Design Quiz - Set 02

## Machine Design Online Quiz: Set 02

1. A connecting rod is four times strong in buckling about Y-axis than about X-axis.
Agree
Disagree

2. In a crossed belt drive, the shafts are arranged parallel and rotate in the same directions.
Correct
Incorrect

3. The square threads are not as strong as V-threads but they offer less frictional resistance to motion than Whitworth threads.
Correct
Incorrect

4. In order to obtain the bolts of uniform strength, an axial hole is drilled through the head as far as the threaded portion such that the area of shank becomes equal to the root area of the thread.
True
False

5. When the lubricant is forced between the journal and the bearing by external pressure, the bearing is called hydrostatic lubricated bearing.
Agree
Disagree

6. The spindles of bench vices are usually provided with knuckle threads.
Agree
Disagree

7. The algebraic difference between the actual size and the corresponding basic size is called actual deviation.
Agree
Disagree

8. A material is stressed within elastic limit and its linear strain is double as compared to lateral strain. The ratio of its Bulk modulus to Young's modulus will be equal to one.
Correct
Incorrect

9. The interference may only be avoided if the addendum circles of the two mating gears cut the common tangent to the base circles between the points of tangency.
True
False

10. The Lewis equation for gear tooth with involute profile predicts the static load capacity of cantilever beam of uniform strength.
True
False

11. A turn buckle is used to connect two round rods subjected to tensile loading and requiring subsequent adjustment for tightening or loosening.
Yes
No

12. The effect of key ways on a shaft is to reduce its load carrying capacity and to increase its torsional rigidity.
True
False

13. In a V-belt drive, the belt makes contact at the bottom of the groove of the pulley.
Agree
Disagree

14. A connecting rod subjected to an axial load may buckle in the plane perpendicular to the plane of motion of the connecting rod.
Correct
Incorrect

15. According to Guest's theory, the failure occurs at a point in a member when the maximum shear stress in a biaxial stress system reaches the shear stress at elastic limit in simple tension test.
True
False

16. A sliding bearing in which the working surfaces are completely separated from each other by lubricant is called zero film bearing.
True
False

17. When two parallel and coplanar shafts are connected by gears having teeth parallel to the axis of the shaft, the arrangement is known as spiral gearing.
Yes
No

18. A flange coupling is a type of rigid coupling.
Correct
Incorrect

19. In a sawn nut, a slot is cut about half way through the nut and a small screw is tightened between the nut and the bolt in order to produce more friction.
Agree
Disagree

20. When the effort is in between the fulcrum and load, the lever is said to be of third type.
Correct
Incorrect

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