MCQOPTIONS
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MCQOPTIONS
This section includes 905 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 901. |
The unit speed of the turbine runner is |
| A. | N/‚à öH |
| B. | N/H |
| C. | N/H3/2 |
| D. | N/H² |
| Answer» B. N/H | |
| 902. |
The variation in the volume of a liquid with the variation of pressure is called its |
| A. | Surface tension |
| B. | Compressibility |
| C. | Capillarity |
| D. | Viscosity |
| Answer» C. Capillarity | |
| 903. |
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 |
| Answer» B. 100 kg | |
| 904. |
In a short cylindrical external mouthpiece, the vena contracta occurs at a distance __________ the diameter of the orifice from the outlet of orifice. |
| A. | Equal to |
| B. | One-fourth |
| C. | One-third |
| D. | One-half |
| Answer» C. One-third | |
| 905. |
According to fan laws, for the fans having constant wheel diameters, the power demand varies |
| A. | Directly as fan speed |
| B. | Square of fan speed |
| C. | Cube of fan speed |
| D. | Square root of fan speed |
| Answer» D. Square root of fan speed | |