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  • Question
  • In a single threaded worm and worm wheel, the number of teeth on the worm is 50. The diameter of the effort wheel is 100 mm and that of load drum is 50 mm. The velocity ratio is


  • Options
  • A. 50
  • B. 100
  • C. 150
  • D. 200

  • Correct Answer
  • 100 

  • Tags: Bank Exams

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    • 1. The injection pressure in a diesel engine is about

    • Options
    • A. 10 bar
    • B. 100 bar
    • C. 150 bar
    • D. 500 bar
    • Discuss
    • 2. The discharge is __________ at critical pressure.

    • Options
    • A. zero
    • B. minimum
    • C. maximum
    • Discuss
    • 3. The heating and expanding of a gas is called thermodynamic system.

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 4. The workdone in a free expansion process is zero.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. The rivets are used for __________ fastenings.

    • Options
    • A. permanent
    • B. temporary
    • Discuss
    • 6. The limit of eccentricity is based upon no tension condition.

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. A file with 50 - 60 teeth in 25 mm is called bastard file.

    • Options
    • A. True
    • B. False
    • Discuss
    • 8. Blast furnace is used to produce

    • Options
    • A. pig iron
    • B. cast iron
    • C. wrought iron
    • D. steel
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    • 9. In welding aluminium with TIG arc welding, alternating current is used.

    • Options
    • A. Correct
    • B. Incorrect
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    • 10. German silver contains

    • Options
    • A. 1% silver
    • B. 2% silver
    • C. 5% silver
    • D. no silver
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