Machine Design MCQ with Answers

306) Multiple threads are used to secure

Answer is:

high efficiency

307) The fatigue limit of a material is greatly decreased by poor surface conditions.

Answer is:

Agree

308) The value of Lewis form factor used in design of gears is

Answer is:

all of these

Explanation:

The value of Lewis form factor used in design of gears is
* dependent on number of teeth of a gear
* dependent on system of teeth
* independent of size of teeth

309) The maximum bending stress in a curved beam having symmetrical section always occur at the

Answer is:

inside fibre

310) In radial bearings, the load acts __________ to the axis of rotation.

Answer is:

306) Multiple threads are used to secure

high efficiency

307) The fatigue limit of a material is greatly decreased by poor surface conditions.

Agree

308) The value of Lewis form factor used in design of gears is

all of these

309) The maximum bending stress in a curved beam having symmetrical section always occur at the

inside fibre

310) In radial bearings, the load acts __________ to the axis of rotation.

perpendicular