1. Unit of Pressure is-
- Dyne
- N-m
- Pascal (Pa)
- Nm²
[su_spoiler title=”View Answer ” style=”fancy”]Pascal (Pa)[/su_spoiler]
2. Unit of Thrust is –
- Pascal (Pa)
- Erg
- Newton
- N-m²
[su_spoiler title=”View Answer ” style=”fancy”]Newton[/su_spoiler]
3. Unit of Density is –
- Kg.m
- Kg.m⁻³
- Kg.m²
- Kg.m³
[su_spoiler title=”View Answer ” style=”fancy”]Kg.m⁻³[/su_spoiler]
4. The dimension of Pressure is –
- [ML⁻¹T⁻²]
- [ML⁻³]
- [MLT⁻¹]
- None of these
[su_spoiler title=”View Answer ” style=”fancy”][ML⁻¹T⁻²][/su_spoiler]
5. The dimension of Density is-
- [ML⁻¹T⁻²]
- [ML⁻³]
- [MLT⁻¹]
- None of these
[su_spoiler title=”View Answer ” style=”fancy”][ML⁻³][/su_spoiler]
6. Which of the following instrument is used for measuring atmospheric! pressure?
- Thermometer
- Barometer
- Manometer
- Hydrometer
[su_spoiler title=”View Answer ” style=”fancy”]Barometer[/su_spoiler]
7. Which of the following instrument is used for measuring gauge pressure?
- Thermometer
- Manometer
- Hydrometer
- Barometer
[su_spoiler title=”View Answer ” style=”fancy”]Manometer[/su_spoiler]
8. Hydraulic brakes are based on which law?
- Torricelli’s Law
- Boyle’s Law
- Pascal’s Law
- Newton’s Law
[su_spoiler title=”View Answer ” style=”fancy”]Pascal’s Law[/su_spoiler]
9. Hydraulic lifts are based on which law?
- Torricelli’s Law
- Pascal’s Law
- Newton’s Law
- Newton’s Law
[su_spoiler title=”View Answer ” style=”fancy”]Pascal’s Law[/su_spoiler]
10. A force of 40 N is applied on a nail, whose tip has an area of cross-section of 0.001 cm². The pressure on the tip is –
- 4 x 10⁸ Nm⁻²
- 4 x 10⁸ Nm²
- 4 x 10⁴ Nm⁻²
- None of these
[su_spoiler title=”View Answer ” style=”fancy”]4 x 10⁸ Nm⁻²[/su_spoiler]
11. Which of the following is associated with liquid only and not for gases?
- Surface tension
- Pressure
- Volume
- Density
[su_spoiler title=”View Answer ” style=”fancy”]Surface tension[/su_spoiler]
12. Applications of Bernoulli’s theorem can be seen in –
- dynamic lift of an airplane
- hydraulic press
- helicopter
- None of these
[su_spoiler title=”View Answer ” style=”fancy”]dynamic lift of an airplane[/su_spoiler]
13. S. I. unit of surface tension is –
- Nm
- Nm⁻¹
- Nm⁻²
- Nm⁻³
[su_spoiler title=”View Answer ” style=”fancy”]Nm⁻¹[/su_spoiler]
14. S. I. unit of coefficient of viscosity –
- poise
- dyne
- erg
- henry
[su_spoiler title=”View Answer ” style=”fancy”]poise[/su_spoiler]
15. On the increasing temperature, the surface tension –
- Increases
- Decreases
- Remains unchanged
- None of these
[su_spoiler title=”View Answer ” style=”fancy”]Decreases[/su_spoiler]
16. The dimension of viscosity is –
- [MLT⁻²]
- [ML⁻¹T⁻²]
- [ML²T⁻²]
- None of these
[su_spoiler title=”View Answer ” style=”fancy”][ML⁻¹T⁻²][/su_spoiler]
17. The coefficient of viscosity of a liquid, on increasing temperature –
- increases
- Decreases
- remains constant
- None of these
[su_spoiler title=”View Answer ” style=”fancy”]Decreases[/su_spoiler]
18. When the temperature is increased, the angle of contact of a liquid –
- increases
- Decreases
- remains constant
- None of thes
[su_spoiler title=”View Answer ” style=”fancy”]Decreases[/su_spoiler]
