MCQOPTIONS
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MCQOPTIONS
This section includes 19 Mcqs, each offering curated multiple-choice questions to sharpen your Fluid Mechanics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Component of velocity in direction of jet is -VCosθ. What does ‘θ’ indicate? |
| A. | Angle made by jet |
| B. | Angle made by jet and outlet tip |
| C. | Angle made by jet and inlet tip |
| D. | Tangent angle |
| Answer» D. Tangent angle | |
| 2. |
A jet strikes a curved plate at its ______ |
| A. | Sides |
| B. | Surface |
| C. | Centre |
| D. | Does not strike |
| Answer» D. Does not strike | |
| 3. |
Which among the following is a formula for force when it acts perpendicular to the direction of flow? |
| A. | pav2 SinθCosθ |
| B. | pav Sin2 θ |
| C. | pa Sin2 θ |
| D. | maE Sin2 θ |
| Answer» B. pav Sin2 θ | |
| 4. |
What does Cv in jet propulsion equation stand for? |
| A. | Area of orifice |
| B. | Velocity |
| C. | Temperature coefficient |
| D. | Velocity coefficient |
| Answer» E. | |
| 5. |
THROUGH_INLET_ORIFICES,_WHICH_ARE_FACING_THE_DIRECTION_OF_MOTION_OF_THE_SHIP,_THE_WATER_FROM_THE_SEA_CAN_BE_TAKEN_BY_THE_PUMP.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
A jet strikes a curved plate at its ______$ |
| A. | Sides |
| B. | Surface |
| C. | Centre |
| D. | Does not strike |
| Answer» D. Does not strike | |
| 7. |
Which among the following is a formula for force when it acts perpendicular to the direction of flow?$ |
| A. | pav<sup>2</sup> SinθCosθ |
| B. | pav Sin<sup>2</sup> θ |
| C. | pa Sin<sup>2</sup> θ |
| D. | maE Sin<sup>2</sup> θ |
| Answer» B. pav Sin<sup>2</sup> ‚âà√≠‚Äö√†√® | |
| 8. |
Component of velocity in direction of jet is -VCosθ. What does ‘θ’ indicate?$ |
| A. | Angle made by jet |
| B. | Angle made by jet and outlet tip |
| C. | Angle made by jet and inlet tip |
| D. | Tangent angle |
| Answer» D. Tangent angle | |
| 9. |
A jet after striking a smooth plate comes out with a __________ velocity. |
| A. | Increased |
| B. | Decreased |
| C. | Same |
| D. | Zero |
| Answer» D. Zero | |
| 10. |
What is the equation for efficiency of jet propulsion? |
| A. | 2u/(V-2u) |
| B. | 2u/(V+2u) |
| C. | 2u/v |
| D. | V/2u |
| Answer» C. 2u/v | |
| 11. |
Which among the following is the formula for relative velocity? |
| A. | V + u |
| B. | Vu |
| C. | V – u |
| D. | V/u |
| Answer» B. Vu | |
| 12. |
The inlet orifices are at what angle with the motion of the ship? |
| A. | 0 |
| B. | 30 |
| C. | 60 |
| D. | 90 |
| Answer» E. | |
| 13. |
The movement of ships and boats in water is due to __________ |
| A. | Water currents |
| B. | Jet propulsion |
| C. | Mass flow rate |
| D. | Volumetric changes |
| Answer» C. Mass flow rate | |
| 14. |
Which among the following is the formula for Force when it strikes the plate? |
| A. | pav<sup>2</sup> |
| B. | pav |
| C. | pa |
| D. | maE |
| Answer» B. pav | |
| 15. |
What is the full form of Cv In Jet Propulsion Equation in Force Exerted Jet Stationary Curved Plate? |
| A. | Area of orifice |
| B. | Velocity |
| C. | Temperature coefficient |
| D. | Velocity coefficient |
| Answer» E. | |
| 16. |
Jet propulsion works on the principle of________ |
| A. | Newton’s first law |
| B. | Newton’s second law |
| C. | Newton’s third law |
| D. | Thermodynamic properties |
| Answer» D. Thermodynamic properties | |
| 17. |
In a stationery vertical plate, the jet after striking the plate will move _______ |
| A. | In opposite direction |
| B. | Along the plate |
| C. | Perpendicular to the plate |
| D. | Parallel to the plate |
| Answer» C. Perpendicular to the plate | |
| 18. |
The propulsive force drives the jet in the ________ |
| A. | Backward direction |
| B. | Forward direction |
| C. | Perpendicular direction |
| D. | Parallel movement |
| Answer» C. Perpendicular direction | |
| 19. |
Jet propulsion is a method of generating propulsive force by reaction of ________ |
| A. | Accelerating mass |
| B. | Volume |
| C. | Mass flow rate |
| D. | Velocity |
| Answer» B. Volume | |