Wednesday, December 5, 2018

Theory of machine top 25 mcq


01.Higher pairs are those which have

Point or line contact between the two elements when in motion.


02.A universal joint is an example of


Image result for universal joint

lower pair.

03.A simple mechanism has

4 links.

04.The lower pair is a

sliding pair.

05.In higher pair, the relative motion is

Combination of sliding and turning.

06.Davis steering gear consists of

sliding pairs.

07.The motion transmitted between the teeth of gears in mesh is


Image result for teeth of gears in mesh


Partly sliding and partly rolling.

08. Oldham's coupling is the

Third inversion of double slider crank chain.

09.Elements of pairs held together mechanically is known as

closed pair.

10.Rectangular bar in a rectangular hole is the following type of pair

completely constrained motion.

11.The tendency of a body to resist change from rest or motion is known as

inertia.

12.In a gear drive, module is equal to

1/diameter pitch.

13.If the opposite links of a four bar linkage are equal, the links will always form a

parallelogram.


14.Whit Worth quick return mechanism is contained by inversion of

Image result for slider crank mechanism.
slider crank mechanism.

15.Which of the following is a lower pair?


Image result for piston and cylinder

ball and socket&
piston and cylinder.

16.The lead screw of a lathe with nut is a

screw pair.

17.Kinematic pairs are those which have two elements that 

permit relative motion.

18.Oldham's coupling is used to connect two shafts which are

Image result for Oldham's coupling
parallel.

19.Degree of freedom of super structure is

less than zero.

20.Degree of freedom of structure is

0(zero).

21.Which one of the following is a higher pair ?

Image result for Belt and pulley
Belt and pulley.

22. Oldham's coupling is the inversion of

double slider crank mechanism.

23.A point on a connecting link of a double slider crank mechanism traces a

elliptical path.

24.Coriolis component of acceleration is always

perpendicular to link.

25.The cam follower used in aircraft engines is a

roller follower.

No comments:

Post a Comment

FACEBOOK REELS VIRAL TIPS AND TRICKS

Here are the best tips and tricks to make your Facebook Reels go viral in 2025 — specially curated for creators like you 👇 --- 🔥 1. Hook i...