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  • Question

  • The rotor of a ship rotates in clockwise direction when viewed from stern and the ship takes a right turn. The effect of gyroscopic couple acting on it will be to raise the stern and lower the bow.


  • Options
  • A. Agree
  • B. Disagree

  • Correct Answer
  • Agree 

    • Theory of machines problems

    Search Results

    • 1. For high speed engines, the cam follower should move with

    • Options
    • A. uniform velocity
    • B. simple harmonic motion
    • C. uniform acceleration and retardation
    • D. cycloidal motion
      • Discuss
    • 2. In vibration isolation system, the transmissibility will be equal to unity, for all values of damping factor, if ?/?n is

    • Options
    • A. equal to one
    • B. equal to 2
    • C. less than 2
    • D. greater than 2
      • Discuss
    • 3. When a body moves with simple harmonic motion, the product of its periodic time and frequency is equal to

    • Options
    • A. zero
    • B. one
    • C. ?/2
    • D. ?
      • Discuss
    • 4. In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to

    • Options
    • A. 0.2
    • B. 0.4
    • C. 0.6
    • D. 0.8
      • Discuss
    • 5. Shock resisting steels should have

    • Options
    • A. low wear resistance
    • B. low hardness
    • C. low tensile strength
    • D. toughness
      • Discuss
    • 6. For a twin cylinder V-engine, the crank positions for primary reverse cranks and secondary direct cranks are shown in the below figure. The engine is a

    • Options
    • A. 30° V-engine
    • B. 60° V-engine
    • C. 120° V-engine
    • D. 150° V-engine
      • Discuss
    • 7. The steering of a ship means

    • Options
    • A. movement of a complete ship up and down in vertical plane about transverse axis
    • B. turning of a complete ship in a curve towards right or left, while it moves forward
    • C. rolling of a complete ship side-ways
    • D. none of the above
      • Discuss
    • 8. The radial distance of a tooth from the pitch circle to the bottom of the tooth is called

    • Options
    • A. dedendum
    • B. addendum
    • C. clearance
    • D. working depth
      • Discuss
    • 9. When the axes of the shafts, over which the gears are mounted, move relative to a fixed axis, then the train is known as reverted gear train.

    • Options
    • A. Right
    • B. Wrong
      • Discuss
    • 10. The partial balancing of reciprocating parts in locomotives produces

    • Options
    • A. hammer blow
    • B. swaying couple
    • C. variation in tractive force along the line of stroke
    • D. all of the above
      • Discuss

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