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 tc__________________?

Related Mcqs:

1. weight of water, the hydraulic mean depth of the sewer and the bed slope w is the unit of the sewer, then the tractive force exerted by flowing water, is________________________?

   A. w r S S
   B. w r1/2
   C. w r S
   D. w r2/3

2. In Chezy’s formula V = C rs for calculating the velocity of flow in circular sewer of diameter running full, the value of hydraulic mean radius is_______________?

   A. D
   B. D /2
   C. D/3
   D. D/4

3. If D is the diameter of a circular sewer and D’ is the top horizontal diameter of an equivalent egg shaped section, the relationship which holds good, is_______________?

   A. D’ = 0.64 D
   B. D’ = 0.74 D
   C. D’ = 0.84 D
   D. D’ = 0.94 D

4. Specific weight of water in S.I. units is equal to_________________?

   A. 1000 N/m3
   B. 10000 N/m3
   C. 9.81 xlO3 N/m3
   D. 9.81 xlO6N/m3
   E. 9.81 N/m3

5. The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to____________________?

   A. Buoyancy
   B. Equilibrium of a floating body
   C. Archimedes’ principle
   D. Bernoulli’s theorem
   E. Metacentric principle

6. If the diameter of a sewer is 100 mm, the gradient required for generating self cleansing velocity is__________________?

   A. 1 in 60
   B. 1 in 100
   C. 1 in 120
   D. None of these

7. If the diameter of sewer is 225 mm, the gradient required for generating self cleansing velocity, is___________________?

   A. 1 in 60
   B. 1 in 100
   C. 1 in 120
   D. None of these

8. If the diameter of a sewer is 150 mm, the gradient required for generating self cleansing velocity, is________________?

   A. 1 in 60
   B. 1 in 100
   C. 1 in 120
   D. None of these

9. Ratio of inertia force to elastic force is known as _____________________?

   A. Mach number
   B. Froude number
   C. Reynold’s number
   D. Weber’s number
   E. none of the above

10. 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