A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will_________________?

Related Mcqs:

1. An object having 10 kg mass weighs 9.81kg on a spring balance. The value of ‘g’ at this place is _________________?

   A. 10m/sec2
   B. 9.81 m/sec2
   C. 10.2/m sec
   D. 9.75 m/sec2
   E. 9 m/sec

2. In petrol engine, increase of cooling water temperature will_________________?

   A. increase the knocking tendency
   B. decrease the knocking tendecny
   C. not affect the knocking tendency
   D. increase or decrease knocking tendency depedning on strength and time of spark
   E. unpredictable

3. Water at pressure of 4 kg/cm2 and 160°C temperature when exposed to atmosphere will_________________?

   A. boil
   B. flash i.e. get converted into steam
   C. remain as it was
   D. cool down
   E. none of the above

4. The m.e.p. of a diesel cycle having fixed compression ratio with increase in cut-off will_________________?

   A. increase
   B. decreae
   C. be unaffected
   D. depend on other factors
   E. unpredictable

5. In petrol engine using a fixed octane rating fuel and fixed compression ratio, super charging will_________________?

   A. increase the knocking tendency
   B. decrease the knocking tendency
   C. not affect the knocking tendency
   D. increase or decrease knocking tendency depending on strength and time of spark
   E. unpredictable

6. The ultimate tensile strength of low carbon steel by working at a high strain rate will_________________?

   A. decrease
   B. increase
   C. remain constant
   D. first increase and then decrease
   E. first decrease and then increase

7. A piece weighing 3 kg in air was found to weigh 2.5 kg when submerged in water. Its specific gravity is_________________?

   A. 1
   B. 5
   C. 7
   D. 6

8. A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is _________________?

   A. 0.83
   B. 0.6
   C. 0.4
   D. 0.3
   E. none of the above

9. The temperature at which ferromagnetic alpha iron transforms to paramagnetic alpha iron is _______________?

   A. 770°C
   B. 910°C
   C. 1050°C
   D. below recrystallisation temperature
   E. above recrystallization temperature

10. Which of the following is mostly used used as blast furnace fuel for extracting pig iron from iron ores?

    A. Brown coal
    B. Anthracite coal
    C. Hard coke
    D. Woodchar coal

    Submitted by: Faheem Zaman Dhaunroo