MCQOPTIONS
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MCQOPTIONS
This section includes 157 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. |
An excitation and amplification system for use with transducers is termed as ______________ |
| A. | signal controlling |
| B. | threshold |
| C. | time constant |
| D. | none of the mentioned |
| Answer» B. threshold | |
| 2. |
The time required for the output of a transducer to rise to 63.2% of its final value as a result of a step change in the measurand is called? |
| A. | zero drift |
| B. | threshold |
| C. | time constant |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 3. |
______________ is the smallest change in the measurand that produces a detectable change in the transducer output. |
| A. | Zero drift |
| B. | Threshold |
| C. | Linearity |
| D. | None of the mentioned |
| Answer» C. Linearity | |
| 4. |
A change in output over a specified period of time at specified ambient conditions with input held constant is called? |
| A. | overload |
| B. | zero drift |
| C. | warm up period |
| D. | none of the mentioned |
| Answer» C. warm up period | |
| 5. |
The maximum magnitude of measurand that can be applied to a measuring device without causing a change in performance beyond specified tolerance is called? |
| A. | overload |
| B. | zero drift |
| C. | warm up period |
| D. | none of the mentioned |
| Answer» B. zero drift | |
| 6. |
_____________ is the impedance presented to the excitation source, measured across the excitation terminals of a measuring device. |
| A. | Input impedance |
| B. | Output impedance |
| C. | Measurand |
| D. | None of the mentioned |
| Answer» B. Output impedance | |
| 7. |
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 atmView answer |
| Answer» C. 0.36 atm | |
| 8. |
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 atmView answer |
| Answer» C. 1.2 atm | |
| 9. |
Archimedes’ principle describes which of the following quantities? |
| A. | Pressure |
| B. | Buoyancy |
| C. | Velocity |
| D. | MassView answer |
| Answer» C. Velocity | |
| 10. |
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/m2View answer |
| Answer» C. 2.5 N/m2 | |
| 11. |
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 NView answer |
| Answer» B. 2 N | |
| 12. |
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/m2View answer |
| Answer» B. 10 N/m2 | |
| 13. |
Bernoulli’s Equation is the conservation of? |
| A. | Energy |
| B. | Momentum |
| C. | Pressure |
| D. | MassView answer |
| Answer» B. Momentum | |
| 14. |
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/m3View answer |
| Answer» E. | |
| 15. |
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/m2View answer |
| Answer» D. 1000 N/m2View answer | |
| 16. |
What is the pressure of 1 mole of an ideal gas at 27oC occupying 1 Liter of volume? |
| A. | 12.31 atm |
| B. | 24.63 atm |
| C. | 36.95 atm |
| D. | 48.94 atmView answer |
| Answer» C. 36.95 atm | |
| 17. |
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 PaView answer |
| Answer» B. 2 Pa | |
| 18. |
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 PaView answer |
| Answer» C. 2 Pa | |
| 19. |
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 PaView answer |
| Answer» B. 4 Pa | |
| 20. |
If the height of the first storey of a building is 3.25 m and riser is 13 cm, the number of treads required is |
| A. | 12 |
| B. | 18 |
| C. | 24 |
| D. | 25 |
| Answer» D. 25 | |
| 21. |
In masonry NO deduction is made for: |
| A. | Opening each upto 10000 sq. cm |
| B. | Opening each upto 1000 sq. cm |
| C. | Opening each upto 1500 sq. cm |
| D. | Opening each upto 1800 sq. cm |
| Answer» C. Opening each upto 1500 sq. cm | |
| 22. |
A hydraulic press is based on the principle of- |
| A. | Boyle's law |
| B. | Newton's law |
| C. | Charles' law |
| D. | Pascal's law |
| Answer» E. | |
| 23. |
Pressure of a fluid is measured by a: |
| A. | barometer |
| B. | manometer |
| C. | thermometer |
| D. | lactometer |
| E. | pitot tube |
| Answer» C. thermometer | |
| 24. |
In the centre line method of working out volumes, for T junction of walls, what deductions must be made from the centre line length at each junction? |
| A. | Twice the breadth |
| B. | Half the breadth |
| C. | 1.5 breadth |
| D. | None of these |
| Answer» C. 1.5 breadth | |
| 25. |
A canal bank has a length of 100 m and its height at two extreme ends is 2 m and 3 m respectively. The side slope of the bank is 2 : 1. The rate of pitching is Rs. 500 per square metres. Calculate the cost (Rs.) of pitching of the area of the side slope. |
| A. | 1,50,000 |
| B. | 1,67,500 |
| C. | 1,76,500 |
| D. | 2,79,500 |
| Answer» E. | |
| 26. |
A pipe contains an oil of specific gravity 0.9. A differential manometer connected at the two points A and B shows a difference in mercury levels as 15 cm. The difference of pressure at the two points A and B will be (Note: consider the density of mercury as 13600 kg/m3) |
| A. | 18688 N/m2 |
| B. | 15981 N/m2 |
| C. | 288 N/m2 |
| D. | 6528 N/m2 |
| Answer» B. 15981 N/m2 | |
| 27. |
In rate analysis procedure, by what % the wet volume of concrete is to be increase for determining dry volume? |
| A. | 20% |
| B. | 30% |
| C. | 52% |
| D. | 25% |
| Answer» D. 25% | |
| 28. |
A 1.01325 bar pressure is equivalent to: |
| A. | 0.760 cm of Hg |
| B. | 7.60 cm of Hg |
| C. | 76.0 cm of Hg |
| D. | 760 cm of Hg |
| Answer» D. 760 cm of Hg | |
| 29. |
Pressure at a depth of 15 m under water surface in a dam is approximately |
| A. | 15 bar |
| B. | 1.5 MPa |
| C. | 150 kPa |
| D. | None of these |
| Answer» D. None of these | |
| 30. |
In an open U-tube containing mercury, kerosene of specific gravity 0.8 is poured into one of its limbs so that the length of column of kerosene is about 40 cm. The level of mercury column in that limb is lowered approximately by how much? |
| A. | 2.4 cm |
| B. | 1.2 cm |
| C. | 3.6 cm |
| D. | 0.6 cm |
| Answer» C. 3.6 cm | |
| 31. |
Calculate the quantity of the cement required in cubic meter for 10 square meters of cement plaster 12 mm thick using cement mortar of 1 : 6. (Consider 20% wastage) |
| A. | 0.015 |
| B. | 0.0175 |
| C. | 0.0205 |
| D. | 0.0325 |
| Answer» D. 0.0325 | |
| 32. |
Calculate the number of bags of cement required for the 12 mm thick plastering of a wall of 5 m long, 3.5 m high and 300 mm thick, if 1: 3 cement mortar is used. |
| A. | 3 |
| B. | 4 |
| C. | 5 |
| D. | 6 |
| Answer» C. 5 | |
| 33. |
An oil of specific gravity 0.7 is stored in a closed tank up to a height of 2 m. What will be the gauge pressure at the bottom of the tank? |
| A. | 14 Mpa |
| B. | 0.014 MPa |
| C. | 1.4 Mpa |
| D. | 0.14 Mpa |
| Answer» C. 1.4 Mpa | |
| 34. |
Calculate the quantity of the earthworks in the cubic meter for a canal embankment of 100 m long having heights of 3 m and 5 m at the two extreme edges. Top widths of the embankment are 2 m and 4 m at the two extreme edges and the side slope is 2 : 1. Use the trapezoidal method. |
| A. | 3500 |
| B. | 4000 |
| C. | 4200 |
| D. | 4700 |
| Answer» E. | |
| 35. |
Predict the pressure in kPa at an elevation of 2000 m in an isothermal atmosphere, assuming T = 20°C and Patm = 100 kPa |
| A. | 87 |
| B. | 82 |
| C. | 79 |
| D. | 71 |
| Answer» D. 71 | |
| 36. |
A tank is 1.8 m deep and square length of 4.5 m at the top and square length of 3 m at the bottom. The four sides are plane and each has the same trapezoidal shape. The tank is completely full of oil weighing 936 kg/m3. What is the resultant pressure on each side? |
| A. | 5750 kgf |
| B. | 5500 kgf |
| C. | 5250 kgf |
| D. | 5140 kgf |
| Answer» B. 5500 kgf | |
| 37. |
In a venturimeter the flow is 0.15 m3/s when the differential pressure is 30 kN/m2. What is the value of flow when the differential pressure is 60 kN/m2. |
| A. | 0.212 m3/s |
| B. | 0.106 m3/s |
| C. | 0.3 m3/s |
| D. | 0.075 m3/s |
| Answer» B. 0.106 m3/s | |
| 38. |
Pressure drop of water flowing through a pipe (density 1000 kg/m3) between two points is measured by using a vertical U-tube manometer. Manometer uses a liquid with density 2000 kg/m3. The difference in height of manometric liquid in the two limbs of the manometer is observed to be 10 cm. The pressure drop between the two points is |
| A. | 98.1 N/m2 |
| B. | 981 N/m2 |
| C. | 1962 N/m2 |
| D. | 19620 N/m2 |
| Answer» C. 1962 N/m2 | |
| 39. |
Excavation of soil for foundation is measured in |
| A. | Metre |
| B. | Square metre |
| C. | Cubic metre |
| D. | Lump sum |
| Answer» D. Lump sum | |
| 40. |
Aneroid barometer measures |
| A. | Local atmospheric pressure |
| B. | Standard atmospheric pressure |
| C. | Gauge pressure |
| D. | Difference between standard and local atm. Pressure |
| E. | Absolute pressure |
| Answer» B. Standard atmospheric pressure | |
| 41. |
For a 2 m deep swimming pool, pressure difference between the top and the bottom of the pool is _______ kPa. |
| A. | 22 |
| B. | 12 |
| C. | 19.63 |
| D. | 11 |
| Answer» D. 11 | |
| 42. |
Gauge pressure has _______ value. |
| A. | zero |
| B. | positive |
| C. | negative |
| D. | zero, positive or negative |
| Answer» E. | |
| 43. |
Pascal's law states that pressure at a point is equal in all directions |
| A. | In a liquid at rest |
| B. | In a fluid at rest |
| C. | In a laminar flow |
| D. | In a turbulent flow |
| Answer» C. In a laminar flow | |
| 44. |
A-water pump is installed in a building at a cost of Rs. 2,500/-. The life of the pump is 15 years. The annual fund required to be deposited to accumulate the whole amount is _______(take capital recovery factor as 0.05) |
| A. | Rs. 250 |
| B. | Rs. 25 |
| C. | Rs. 625 |
| D. | Rs. 125 |
| Answer» E. | |
| 45. |
Operation of a hydraulic press is on the basis of _______. |
| A. | Joule’s law |
| B. | Pascal’s law |
| C. | Newton’s law |
| D. | Dalton’s law |
| Answer» C. Newton’s law | |
| 46. |
At sea level, the value of atmospheric pressure is close to: |
| A. | 1 metre of water column |
| B. | 100 metre of water column |
| C. | 10.33 metres of water column |
| D. | 1000 metres of water column |
| Answer» D. 1000 metres of water column | |
| 47. |
Equation for cement requirement in tones for four-story R.C.C. framed building (super structure) recommended by C.B.R.I is |
| A. | 0.153 A + 0.57 |
| B. | 0.145 A + 0.54 |
| C. | 0.182 A – 0.35 |
| D. | 2.26 A + 66.8 |
| Answer» D. 2.26 A + 66.8 | |
| 48. |
Piezometers are used to measure _________. |
| A. | gauge pressure |
| B. | velocity of the flow |
| C. | viscosity of the fluid |
| D. | temperature |
| Answer» B. velocity of the flow | |
| 49. |
As per IS 1200, in the measurement of brickwork, no deductions shall be made for |
| A. | Opening up to 0.1 sq. m in area |
| B. | Opening up to 0.01 sq. m in area |
| C. | Opening up to 0.001 sq. m in area |
| D. | Opening up to 1.0 sq. m in area |
| Answer» B. Opening up to 0.01 sq. m in area | |
| 50. |
Pressure intensity at a point in a fluid at rest is 4 N/cm2. The corresponding height of water would be (assume g = 10 m/s2) |
| A. | 4 m |
| B. | 2 m |
| C. | 0.4 m |
| D. | 40 m |
| Answer» B. 2 m | |