The permissible limit of hardness of water fore low pressure boiler is _____________________?

Related Mcqs:

1. A water rise takes place on down stream of sloping glacis, when a stream of water moving with high velocity and low depth strikes another stream of flow moving with low velocity and high depth, such breakage in water surface is called______________?

   A. Water wave
   B. Water tide
   C. Hydraulic jump
   D. Afflux

2. The unit of volume of water used in irrigation practice in FPS system is Acre-Foot. there fore one Acre- Foot is equal to ___________________?

   A. 40560ft3
   B. 41560ft3
   C. 43560 cubic feet
   D. 42560ft3

3. The loss of head H/ L is proportional to the length of creep. There fore the loss of head per unit creep length is called ______________________?

   A. Hydraulic gradient
   B. Head loss
   C. Creep length
   D. Exit gradient

4. Permissible velocity of water flowing through concrete lined tunnel is usually __________________?

   A. 3 – 4m/sec
   B. 4 – 5m/sec
   C. 5 – 6m/sec
   D. 6 – 7m/sec

5. The field capacity is the water retained by a saturated soil after free drainage of surplus water to the ground water table but the water retained by a saturated soil after being centrifuged by a centrifugal force of 1000 times that of gravity is called________________?

   A. Soil moisture
   B. Equivalent moisture
   C. Field moisture
   D. Available moisture

6. An open cut in the canal bank. with bed and sides to escape canal water through a lead channel to mix water in a nearby drain is called _____________________?

   A. Inlet
   B. Out let
   C. Module
   D. Exit

7. Wilting point is that limit after that the crop starts feeding up and no water is available for plant, this point occurs after _________________?

   A. 30% water available
   B. 25% water available
   C. 20% water available
   D. All are correct

8. Specific weight of a liquid is defined as the weight per unit volume at standard Temperature & pressure therefore specific weight of water of water is equal to ____________ kg/m3 in MKS system ?

   A. 990
   B. 995
   C. 999
   D. 1000

9. In high floods, to avoid spilling of flood water over the gates, a wall is provided from pond level to high Flood level. This wall spans for the entire length of regulator, rest on piers, sustain water pressure by its weight called_____________________?

   A. Retaining wall
   B. Divide wall
   C. Breast wall
   D. Cantilever wall

10. A water pool is designed on the down stream of the hydraulic structure to dissipate the energy of falling water by providing a water cushion called ______________________?

    A. Water pool
    B. Cistern
    C. Down stream pond
    D. Water cushion