MCQOPTIONS
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MCQOPTIONS
This section includes 85 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A closed U-tube manometer has a gas on one end with pressure 5 Pa and other end has vacuum, what is the approximate height difference of the liquid if the density of liquid is 10 Kg/m³? |
| A. | 5 mm |
| B. | 10 mm |
| C. | 50 mm |
| D. | 100 mm |
| Answer» D. 100 mm | |
| 2. |
A closed U-tube manometer has a gas on one end with pressure 10 Pa and other end has vacuum, what is the approximate density of the liquid if the height difference of the liquid is 10 cm? |
| A. | 1 Kg/m³ |
| B. | 10 Kg/m³ |
| C. | 100 Kg/m³ |
| D. | 1000 Kg/m³ |
| Answer» C. 100 Kg/m³ | |
| 3. |
What is the pressure if 10 N of force acts at 30 degrees from the surface of area 5 m²? |
| A. | 1 Pa |
| B. | 2 Pa |
| C. | 5 Pa |
| D. | 10 Pa |
| Answer» B. 2 Pa | |
| 4. |
What is the pressure difference of the ends of a U-tube manometer filled with liquid (density = 10 kg/m³) the difference in the height of the liquid in the tubes is 5 cm? |
| A. | 5 N/m² |
| B. | 10 N/m² |
| C. | 15 N/m² |
| D. | 20 N/m² |
| Answer» B. 10 N/m² | |
| 5. |
What is the pressure of 38 mm Hg in Torr? |
| A. | 0.05 |
| B. | 0.5 |
| C. | 1 |
| D. | 38 |
| Answer» E. | |
| 6. |
An open end manometer is filled with a gas on one end and other end is open to atmosphere with height difference of liquid (density = 10000 Kg/m³) 10 cm, what is the pressure of gas? |
| A. | 1 atm |
| B. | 1.1 atm |
| C. | 1.2 atm |
| D. | 1.3 atm |
| Answer» C. 1.2 atm | |
| 7. |
A Closed U-tube manometer has a gas at one end and vacuum at other end, if the height difference of the liquid (density = 10 kg/m³) in the manometer in 5 cm, what is the pressure of the gas? |
| A. | 10 N/m² |
| B. | 5 N/m² |
| C. | 2.5 N/m² |
| D. | 1 N/m² |
| Answer» C. 2.5 N/m² | |
| 8. |
Heat capacity of a substance is given by C = BT² , where T is in degree Fahrenheit and the value of B is 50, what is the value of B if T is in degree Celsius? |
| A. | 81 |
| B. | 25 |
| C. | 162 |
| D. | 100 |
| Answer» D. 100 | |
| 9. |
What is the temperature 100°C in degree Rankine? |
| A. | 100°R |
| B. | 212°R |
| C. | 560°C |
| D. | 672°C |
| Answer» E. | |
| 10. |
Heat capacity of a substance is given by C = 800 – 1600T + 25T² , where T is temperature in degree Fahrenheit, what is the heat capacity if temperature is in degree Celsius? |
| A. | 81T² + 24800 |
| B. | 81T² – 24800 |
| C. | 25T² + 24800 |
| D. | 25T² – 24800 |
| Answer» C. 25T² + 24800 | |
| 11. |
Bernoulli’s Equation is the conservation of? |
| A. | Energy |
| B. | Momentum |
| C. | Pressure |
| D. | Mass |
| Answer» B. Momentum | |
| 12. |
Let us say temperature of a body in degree Celsius and degree Rankine are related as TC = 50 + 3TR, what is the change in temperature in Kelvin, if the change in temperature in degree Rankine is 100°R? |
| A. | 300 K |
| B. | 180 K |
| C. | 100 K |
| D. | 90 K |
| Answer» B. 180 K | |
| 13. |
Which of the following device is used to measure Velocity of flow? |
| A. | Manometer |
| B. | Venturi meter |
| C. | Pitot tube |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 14. |
A U-tube manometer is closed at both ends one end is vacuum and other end has a gas, if the difference in level of mercury is h = 10 mm, what is the pressure of gas? |
| A. | 1.33 Pa |
| B. | 1.45 Pa |
| C. | 1.56 Pa |
| D. | 1.75 Pa |
| Answer» B. 1.45 Pa | |
| 15. |
Which of the following equals 760 mm of Hg? |
| A. | 1 atm |
| B. | 1 Pa |
| C. | 1 bar |
| D. | 1 torr |
| Answer» B. 1 Pa | |
| 16. |
What is the value of 760 Torr in Pascal? |
| A. | 1.01325 X 10⁵ |
| B. | 6.025 X 10⁵ |
| C. | 12.05 X 10⁴ |
| D. | 3.0125 X 10⁵ |
| Answer» B. 6.025 X 10⁵ | |
| 17. |
1 psi equals how many kilopascal? |
| A. | 5.249 |
| B. | 6.894 |
| C. | 7.489 |
| D. | 8.846 |
| Answer» C. 7.489 | |
| 18. |
10 mm of water (density = 1000 kg/m³) and 5 mm of a liquid has the same pressure drop, what is the density of liquid? |
| A. | 500 kg/m³ |
| B. | 1000 kg/m³ |
| C. | 1500 kg/m³ |
| D. | 2000 kg/m³ |
| Answer» E. | |
| 19. |
An open tank 10 m deep is completely filled with a liquid of density 5 kg/m³, what is the pressure difference at the top and bottom? |
| A. | 100 N/m² |
| B. | 250 N/m² |
| C. | 500 N/m² |
| D. | 1000 N/m² |
| Answer» D. 1000 N/m² | |
| 20. |
What is the pressure of 1 mole of an ideal gas at 27°C occupying 1 Liter of volume? |
| A. | 12.31 atm |
| B. | 24.63 atm |
| C. | 36.95 atm |
| D. | 48.94 atm |
| Answer» C. 36.95 atm | |
| 21. |
What is the 100°C in degree Fahrenheit? |
| A. | 0°F |
| B. | 100°F |
| C. | 212°F |
| D. | 460°F |
| Answer» D. 460°F | |
| 22. |
Which of the following is used to measure pressure of only gas? |
| A. | U-tube manometer |
| B. | Piezometer |
| C. | Differential Manometer |
| D. | None of the mentioned |
| Answer» B. Piezometer | |
| 23. |
A closed end manometer is filled with a gas on one end and other end is close with vacuum, height difference of liquid (density = 10000 Kg/m³) 25 cm, what is the pressure of gas? |
| A. | 0.1 atm |
| B. | 0.24 atm |
| C. | 0.36 atm |
| D. | 0.9 atm |
| Answer» C. 0.36 atm | |
| 24. |
Mass and volume of an object is dependent on its temperature in kelvin as m = 5t² kg and v = (400 + 600t) m³ respectively, then what is the density of the object at t = 27°C? |
| A. | 5 kg/m³ |
| B. | 10 kg/m³ |
| C. | 15 kg/m³ |
| D. | 20 kg/m³ |
| Answer» B. 10 kg/m³ | |
| 25. |
What is the pressure if 10 N of force acts at 60 degrees from the normal of a 5 m² surface? |
| A. | 0.5 Pa |
| B. | 1 Pa |
| C. | 2 Pa |
| D. | 4 Pa |
| Answer» C. 2 Pa | |
| 26. |
A hydraulic lever has input surface area 2 m², and output surface area 10 m², if the input force is 5 N, then what is the output force? |
| A. | 1 N |
| B. | 2 N |
| C. | 5 N |
| D. | 10 N |
| Answer» B. 2 N | |
| 27. |
What is the pressure of 50 kPa in bars? |
| A. | 0.25 |
| B. | 0.5 |
| C. | 1 |
| D. | 2 |
| Answer» C. 1 | |
| 28. |
A U-tube manometer is open at one end and has a gas at the other end, if the level of the mercury in both legs of manometer is equal then what is the temperature of the gas? |
| A. | 1 Pa |
| B. | 1 Torr |
| C. | 1 mm Hg |
| D. | 1 atm |
| Answer» E. | |
| 29. |
What is the pressure of 380 torr in atm? |
| A. | 0.5 |
| B. | 1 |
| C. | 2 |
| D. | 4 |
| Answer» B. 1 | |
| 30. |
A closed manometer is filled with 3 fluids first on the left leg with density 8 kg/m³ and length 10 cm, middle one with density 10 kg/m³ and height difference 5 cm more on right leg and the third on the right leg with density 15 kg/m³, what is the length of the third liquid? |
| A. | 1 cm |
| B. | 2 cm |
| C. | 3 cm |
| D. | 4 cm |
| Answer» C. 3 cm | |
| 31. |
An object is dipped in water, if the weight of the object measured by spring balance is 10 g and buoyancy force acting on the object is 0.1 N then what is the actual mass of the object? |
| A. | 10 g |
| B. | 20 g |
| C. | 30 g |
| D. | 40 g |
| Answer» C. 30 g | |
| 32. |
Archimedes’ principle describes which of the following quantities? |
| A. | Pressure |
| B. | Buoyancy |
| C. | Velocity |
| D. | Mass |
| Answer» C. Velocity | |
| 33. |
What is the pressure if 10 N of force is acting normally on 5 m² surface area? |
| A. | 2 Pa |
| B. | 4 Pa |
| C. | 8 Pa |
| D. | 10 Pa |
| Answer» B. 4 Pa | |
| 34. |
What is the value of 273 K in degree Rankine? |
| A. | 0°R |
| B. | 32°R |
| C. | 492°R |
| D. | 672°R |
| Answer» D. 672°R | |
| 35. |
How many Pascal does 1 bar have? |
| A. | 10⁴ |
| B. | 10⁵ |
| C. | 10⁶ |
| D. | 10⁷ |
| Answer» C. 10⁶ | |
| 36. |
What is the value of 100°C in degree Fahrenheit? |
| A. | 212°F |
| B. | 460°F |
| C. | 672°F |
| D. | 884°F |
| Answer» B. 460°F | |
| 37. |
Which of the following is not a unit of pressure? |
| A. | Bar |
| B. | N/m² |
| C. | Kg/m² |
| D. | Torr |
| Answer» D. Torr | |
| 38. |
What is the difference between manometer and differential manometer? |
| A. | Differential manometer has gas in empty space |
| B. | Manometer has gas in empty space |
| C. | Differential manometer has liquid in empty space |
| D. | Manometer has liquid in empty space |
| Answer» B. Manometer has gas in empty space | |
| 39. |
Which of the following is not a pressure measuring device? |
| A. | Manometer |
| B. | Barometer |
| C. | Galvanometer |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 40. |
What is the 40°F in degree Rankine? |
| A. | 313°R |
| B. | 460°R |
| C. | 500°R |
| D. | 672°R |
| Answer» D. 672°R | |
| 41. |
A barometer has liquid-1 with density 5 Kg/m³ and height 10 cm below the outside level above that there is liquid-2 of length 5 cm, if the gauge pressure of the gas is 1 Pa, what is the density of liquid-2? |
| A. | 2 Kg/m³ |
| B. | 4 Kg/m³ |
| C. | 6 Kg/m³ |
| D. | 8 Kg/m³ |
| Answer» E. | |
| 42. |
A barometer has liquid with density 1 Kg/m³, and the gas has pressure 0.5 atm, what is the height of liquid level? |
| A. | 0.01 atm-m²-s²/kg |
| B. | 0.05 atm-m²-s²/kg |
| C. | 0.1 atm-m²-s²/kg |
| D. | 0.5 atm-m²-s²/kg |
| Answer» C. 0.1 atm-m²-s²/kg | |
| 43. |
A barometer the liquid-1 with density 2 Kg/m³ and height 5 cm below the outside level and above that liquid-2 with density 0.5 Kg/m³ and length 10 cm, what is the gauge pressure of the gas? |
| A. | 0.01 Pa |
| B. | 0.05 Pa |
| C. | 0.1 Pa |
| D. | 0.5 Pa |
| Answer» E. | |
| 44. |
A barometer has liquid of density 1 kg/m³ of level 5 cm below the outside level, what is the pressure of the gas captured inside? |
| A. | 0.5 atm + 1 Pa |
| B. | 1 atm + 0.5 Pa |
| C. | 1.5 atm + 1 Pa |
| D. | 2 atm + 0.5 Pa |
| Answer» C. 1.5 atm + 1 Pa | |
| 45. |
A barometer has liquid-1 with density 1 Kg/m³ and height 10 cm below the outside level above that a liquid-2, if the gauge pressure of gas is 0.5 Pa, what is the pressure liquid-2? |
| A. | 0.5 Pa |
| B. | 1 Pa |
| C. | 1.5 Pa |
| D. | 2 Pa |
| Answer» B. 1 Pa | |
| 46. |
Which of the following is not a unit of temperature? |
| A. | Celsius |
| B. | Fahrenheit |
| C. | Therm |
| D. | Rankine |
| Answer» D. Rankine | |
| 47. |
If change in temperate is 180 degree Rankine, what is the change in temperature in degree Celsius? |
| A. | 100°C |
| B. | 180°C |
| C. | 212°C |
| D. | 273°C |
| Answer» B. 180°C | |
| 48. |
If change in temperate is 212 degree Fahrenheit, what is the change in temperature in degree Rankine? |
| A. | 100°R |
| B. | 212°R |
| C. | 273°R |
| D. | 460°R |
| Answer» C. 273°R | |
| 49. |
Absolute zero temperature is approximately equal to? |
| A. | -160°R |
| B. | -273°R |
| C. | -373°R |
| D. | -460°R |
| Answer» E. | |
| 50. |
Which of the following is greatest? |
| A. | 10°C |
| B. | 10°R |
| C. | 10°F |
| D. | 10 K |
| Answer» B. 10°R | |