Vibration upto 100 kilo hertz can be most accurately measured by a ________________ type accelerometer ?

Related Mcqs:

1. Shaft/rotor speed is most accurately measured by a_________________?

   A. Frequency counter
   B. Tachometer
   C. Strobometer
   D. Speedometer

2. Out of the following, the best material capable of withstanding shock & vibration without the danger of cracking is ___________________?

   A. Malleable iron
   B. Grey cast iron
   C. Chilled cast iron
   D. White cast iron

3. The earth’s atmosphere is an envelope of gases present upto a height of about ______________ kms?

   A. 10
   B. 200
   C. 1000
   D. 2000

4. The capacity of a spring to store energy is called the spring form co-efficient. Stiffness of a spring is measured by the____________________?

   A. Ability to absorb shock
   B. Capacity to store energy
   C. Ratio of the wire & coil diameters
   D. Load to produce unit deflection

5. Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the mixture. Dryness factor of steam is measured by a _______________ calorimeter ?

   A. Bomb
   B. Throttling
   C. Junker’s
   D. Boy’s

6. Grams of butane (C4H10) formed by the liquefaction of 448 litres of the gas (measured at (STP) would be__________________?

   A. 580
   B. 640
   C. 1160
   D. Data insufficient; can’t be computed

7. Phenolic water generated in coke ovens & by-product plant attached to an integrated steel plant containing phenol in concentration of less than 100 mg/litre can be removed by_______________?

   A. Chlorination
   B. Treating in biological oxygen pond
   C. Chemical coagulation
   D. None of these

8. The following heat engine produces power of 100,000 kW. The heat engine operates between 800 K and 300 K. It has a thermal efficiency equal to 50% of that of the Carnot engine for the same temperature. The rate at which heat is absorbed from the hot reservoir is____________________?

   A. 100,000 kW
   B. 160,000 kW
   C. 200,000 kW
   D. 320,000 kW

9. A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system________________?

   A. its internal energy (U) decreases and its entropy (S) increases
   B. U and S both decreases
   C. U decreases but S is constant
   D. U is constant but S decreases

10. Na2SO4. 10H2O crystals are formed by cooling 100 Kg of 30% by weight aqueous solution of Na2SO4. The final concentration of the solute in the solution is 10%. The weight of crystals is________________?

    A. 20
    B. 32.2
    C. 45.35
    D. 58.65