Mechanical equivalent of heat for 1 kcal or Joule’s equivalent is equal to_________________?

Related Mcqs:

1. The specific heat of superheated steam in kcal/kg is generally of the order of___________________?

   A. 0.1
   B. 0.3
   C. 0.5
   D. 0.8
   E. 1.0

2. 1 kg.m is equal to_________________?

   A. 9.81 Joules
   B. All Joules
   C. 427 Joules
   D. 102 Joules
   E. 539 Joules

3. Kinematic viscosity is equal to_________________?

   A. dynamic viscosity/density
   B. dynamicviscosity x density
   C. density/dynamic viscosity
   D. 1/dynamicviscosity x density
   E. same as dynamic viscosity

4. A pressure of 25 m of head of water is equal to_________________?

   A. 25 kN/m2
   B. 245 kN/m2
   C. 2500 kN/m2
   D. 2.5kN/m2
   E. 12.5 kN/m2

5. A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal to_________________?

   A. 10 kg
   B. 100 kg
   C. 1000 kg
   D. 1 kg
   E. 10,000 kg

6. According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to_________________?

   A. the weight of the body
   B. more than the weight of the body
   C. less than the weight of the body
   D. weight of the fluid displaced by the body
   E. weight of body plus the weight of the fluid displaced hy the body

7. The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to_________________?

   A. 1000
   B. 2100
   C. 2700
   D. 10,000
   E. 21,000

8. The latent heat of steam at pressures greater than atmospheric in comparison to latent heat at atmospheric pressure is__________________?

   A. less
   B. more
   C. equal
   D. may be less or more depending on temperature
   E. unpredictable

9. The ratio of heat utilised to produce steam and the heat liberated in furnace is known as___________________?

   A. boiler effectiveness
   B. boiler evaporative capacity
   C. factor of evaporation
   D. equivalent evaporation
   E. boiler efficiency

10. The relative heat absorption for successively added equal areas of boiler convection heating surfaces____________________?

    A. increases
    B. decreases
    C. remains unaffected
    D. first increases and then decreases
    E. first decreases and then increases