JNTUK 3-1 Design Of Machine Members-2 online bits (DMM-II)

JNTUK B-tech 3-1 Design Of Machine Members-2 online bits 

Jntuk online bits 

Jntuk btech 3-1 design of machine members-2 online bits, this subject is problametic for solving the problems by  using dmm data book Download Dmm-2 Databook pdf. for every subject in jntuk b-tech 10marks for every mid examinations this test is computer base test, asking 20 multiple choise questions each question carries half marks no any negative marks are considering in this test. this test completed in 20minutes after marks are appear on the screen. jntuk 3-1 design of machine members-2 first mid online bits, jntuk 3-1 design of machine members-2 second mid online bits   

DESIGN OF MACHINE MEMBERS-2 ONLINE BITS MID-1 JNTUK R16

1. Which of the following assumption is correct in case of design of curve bear – The
material of the beam does not. obeys Hooks law
2. The best method for making threads on a bolt is – rolling
3. What is the relation between tight side and slack side tor a flat belt? – (Tight side /
slack side)=eμβ

4. The suitable material for belt in agricultural machinery is – Rubber
5. Which of the lever always reduces the force applied – Lever of the second order
6. Cup is provided in screwjack – To prevent rotation of load
7. Rankins theory is used for – Brittle materials
8. In a horizontal flat belt drive, it is customary to use – top side of belt as slack side
9. Which one of the following is the value of helix angle for maximum efficiency c square
threaded screw? – 45°-(Ø/2)
10. The effort arm on a lever always goes from – effort to the fulcrum
11. Which of the following type of gears are free from axial thrust? – Herringbone gears
12. The bending stress induced in a beam is – Maximum at the farthest fiber from
neutral axis and zero at. the neutral
13. Preliminary design of spur gear using lewis equation is based on – Bending
14. A pulley and belt in a drive form a – Rolling pair
15. A simple flexure formula is used for curved beam for which the radius of curvature is
.. the depth of the beam – more than 5 times
16. The range of helix angle for a double helical gear is – to 45
17. The velocity factor for carefully cut gears operating at velocities up to is equal to
4.5/4.5 + v. – 12.5 m/s
18. The angle through which a gear turns from the beginning of contact, of a pair oi teeth
until the contact arrives at the pitch point, is known as – Angle of approach
19. Which one of the following drives is used for a constant, velocity ratio, positive drive
with large centre distance between the driver and driven shafts? – Chain drive
20. In designing a rocker arm for operating the exhaust valve, the ratio of the length the
diameter of the fulcrum and roller pin is taken as – 1.25
21. Which of the following screw thread is used for lead screw of lathe? – Trapezoidal
threads
22. The most economical section of the crane hook is – Trapezoidal
23. Multiple threads are used for – High efficiency
24. A tack is a gear with – Infinite number of teeth
25. Cup is provided in screwjack – To prevent rotation of load

26. Which of the lever always reduces the force applied? – Lever of the second order

27. In helical gears, the distance between two similar points on the adjacent teeth
measured in a plane perpendicular to tooth, is called – Normal circular pitch
28. A pulley and belt in a drive form a – Rolling pair
29. The coefficient of friction in belt drive depends upon – Materials of belt and pulley
30. Which one of the following is the value of helix angle for maximum efficiency square
threaded screw? – 45°-q>/2
31. The rocker arm in internal combustion engines are of _____ types of level – First type
of levers
32. Velocity factor is used to take care of – Possibility of fatigue failure
33. Which of the following types of gares are free from axial thrust – Herringbone gears
34. The design of the pin of a rocker arm of an I. C. engine is based on – Bearing, shearing
and bending failure
35. An open belt drive is used when – shafts are arranged parallel and rotate in the same
directions
36. The ratio I/y is known as [Where, 1= Moment, of Inertia and y= distance from neutral
axis to the extreme fibre] – Section modulus
37. The ratio of tension of two sides of a rope drive is given by – e
−μØcosecα
38. The bending stress induced in a beam is – Maximum at. the farthest fiber from
neutral axis and zero at the neutral
39. When the belt is transmitting maximum power – The tension in tight side is thrice the
centrifugal tension
40. The maximum bending stress, in a curved beam having symmetrical section, always
occur, at the – Inside fibre
41. The suitable material for belt in agricultural machinery is – Rubber
42. If p. is the actual coefficient of friction in a belt moving in grooved pulley, the groove
angle being 2 a, the virtual coefficient of friction will be – u/sinα
43. The velocity factor for carefully cut. gears operating at velocities up to is equal to
4.5/4.5 + v. – 12.5 m/s
44. which flat belt drive system has two pulleys mounted on driven shaft, and one pulley
on driving shaft? – Fast and loose pulley drive
45. The lever loaded safety valve mounted on boiler is – Second type of lever
46. The wire ropes make contact at – bottom of groove of the pulley
47. When the axes of two shaft are perpendicular and intersecting, use – Bevel gears
48. The form factor of a spur gear depends upon – Number of teeth and the system of
teeth
49. The design of the pin of a rocker arm of an I. C. engine is based on – Bearing, shearing
and bending failure
50. Moment of resistance of a beam – Is equal to safe maximum bending moment to
which it can be subject

DESIGN OF MACHINE MEMBERS-2 ONLINE BITS MID-2 JNTUK R16

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