Interview Question for Theory of Machine

In this post ,I will share on question about Theory Of  Machine which are asked in every interview process.It will be help to prepare in any interview process.The answer of all question are show in bold.


Q:1 A rigid body possesses_____degrees of freedom.
a.Eight
b. Two
c. Four
d. Six


Q:2. Which of the following is an open pair ?
a. Journal bearing .
b. Ball and Socket joint.
c. Leave screw and nut .
d. None of the above.

Q:3. Which of the following is a higher pair ?
a. Turning pair .
b. Screw pair.
c. Belt and pulley .
d. None of the above.

Q:4. A higher pair has__________.
a. Point contact 
b. Surface contact
c. No contact
d. None of the above.

Q:5. In a ball bearing, ball and bearing forms a........
a. Turning pair .
b. Rolling pair .
c. Screw pair .
d. Spherical pair.

Q:6. Transmission angle is the angle between.......
a. Input link and coupler .
b. Input link and fixed link.
c. Output link and coupler .
d. Output link and fixed link.

Q:7. Which of the following is an inversion of Single slider crank chain.....?
a. Beam engine.
  b. Rotary engine.
c. Oldham’s coupling .
d. Elliptical trammel.

Q:8. ..........is an inversion of Double slider crank chain.
a. Coupling rod of a locomotive .
b. Scotch yoke mechanism.
c. Hand pump .
d. Reciprocating engine.

Q:9. A ball and a socket forms a......
a. Turning pair .
b. Rolling pair.
c. Screw pair .
d. Spherical pair.


Q:10. A fixed gear having 400 teeth is in mesh with another gear having 50 teeth. The two gears are connected by an arm.The number of turns made by the smaller gear for one revolution of arm about the centre of bigger gear is.......
a. 2.
b. 8.
c. 3 .
d. 9.

Q:12. Which gear is used for connecting two coplannar and intersecting shafts?
a. Spur gear.
b. Helical gear.
c. Bevel gear .
d. None of the above.

Q:13 Which type of gearing is used in steering system of an automobile?
a. Rack and pinion 
b. Worm and wheel
c. Spiral gears
d. None of the above


Some important part details of gears information I will share .

1.Whatn by Gear ?
A gear may be defined as any tooth member designed to transmit or receive motion from another member by successively engaging tooth

2.Whatction of gear?.
Ans.Then of a gear is to work smoothly while transmitting motion or torque. For this the angular velocity ratio at all times should remain constant. 

 3.What is the classification of gear ?
Ans.Classification be classified according to the relative position of the axes of revolution. The axes may be ngnee 1. parallel 2. intersecting 3. Neither parallel nor intersecting. 
Gears for connecting parallel shafts 1. Spur gears Straight Spur gears are the simplest form of gears having teeth parallel to the gear axis.
 The contact of two teeth takes place over the entire width along a line parallel to the axes of rotation. As gear rotate, the line of contact goes on shifting parallel to the shaft. 

Helical Gears: In helical gear teeth are part of helix instead of straight across the gear parallel to the axis. The mating gears will have same helix angle but in opposite direction for proper

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