MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The efficiency of a Carnot engine operating with reservoir temperatures kept at 100 °C and -23°C will be ___________ |
| A. | (100+23)/100 |
| B. | (100-23)/100 |
| C. | (373+250)/373 |
| D. | (373-250)/373 |
| Answer» E. | |
| 2. |
Assertion: In an isolated system, the entropy increases.Reason: The processes in an isolated system are adiabatic. |
| A. | Both assertion and reason are true and the reason is the correct explanation of the assertion |
| B. | Both assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | Assertion is true but the reason is false |
| D. | Both assertion and reason are false |
| Answer» C. Assertion is true but the reason is false | |
| 3. |
In an adiabatic process, the quantity which remains constant is ___________ |
| A. | Volume |
| B. | Pressure |
| C. | Temperature |
| D. | Total heat of the system |
| Answer» E. | |
| 4. |
If Cp and Cv are the specific heats for a gas at constant pressure and at constant volume respectively, then the relation Cp-Cv=R is exact for? |
| A. | Ideal and real gases at all pressures |
| B. | Ideal gas at all pressures and real gas at a moderate pressure |
| C. | Ideal gas and nearly true for real gases at high pressure |
| D. | Ideal gas and nearly true for real gases at a moderate pressure |
| Answer» E. | |
| 5. |
Out of solid, liquid and gas of the same mass and at the same temperature, which one has the least internal energy? |
| A. | Solid |
| B. | Liquid |
| C. | Gas |
| D. | All three have the same internal energy |
| Answer» B. Liquid | |
| 6. |
Air in a cylinder is suddenly compressed by a piston which is then maintained at the same position. After sometime, the ___________ |
| A. | Pressure will increase |
| B. | Pressure remains the same |
| C. | Pressure will decrease |
| D. | Pressure may increase or decrease |
| Answer» D. Pressure may increase or decrease | |
| 7. |
The amplitudes of the segments of the wave are ____________ |
| A. | P = 0.25 mV, Q = 0.4mV, R = 1.60mV, T = 0.1 – 0.5 mV |
| B. | P = 2.0 mV, Q = 0.1mV, R = 1.60mV, T = 0.1 – 0.5 mV |
| C. | P = 25.0mV, Q = 4.0mV, R = 16.0 mV, T = 10 – 50 mV |
| D. | P = 0.25 mV, Q = 0.60mV, R = 1.60mV, T = 0.1 – 1.0 mV |
| Answer» B. P = 2.0 mV, Q = 0.1mV, R = 1.60mV, T = 0.1 – 0.5 mV | |
| 8. |
The most common placement of the leads from the Einthoven’s triangle is __________ |
| A. | Positive Left Arm and Negative Right Arm |
| B. | Positive Left Leg and Negative Right Arm |
| C. | Positive Left Leg and Negative Left Arm |
| D. | Positive Right Arm and Negative Left Leg |
| Answer» C. Positive Left Leg and Negative Left Arm | |
| 9. |
The number of leads necessary for an ECG is _________ |
| A. | 3 |
| B. | 6 |
| C. | 12 |
| D. | 24 |
| Answer» B. 6 | |
| 10. |
A “acidified” label on a milk product indicates that the product was produced by? |
| A. | Souring the milk |
| B. | Enriching the milk with added iron |
| C. | Cows consumed acid rain water |
| D. | Passing the milk through a reverse osmosis filtration system |
| Answer» B. Enriching the milk with added iron | |
| 11. |
“Cultured” in front of the name of a milk product indicates? |
| A. | Product is older and more mature |
| B. | Product is highly refined |
| C. | Product has appropriate bacteria added to it |
| D. | Product has been through a school and is more expensive |
| Answer» D. Product has been through a school and is more expensive | |
| 12. |
Dry milk can be stored for long periods of time? |
| A. | In refrigerated vaults |
| B. | At temperatures above 150 degrees |
| C. | In an open container in the cabinet |
| D. | Inside a sealed atmosphere of nitrogen or carbon dioxide |
| Answer» E. | |
| 13. |
Dry milk must have less than _________ % moisture by weight. |
| A. | 5% |
| B. | 10% |
| C. | 15% |
| D. | 25% |
| Answer» B. 10% | |
| 14. |
The major difference between Evaporated and Condensed milk is? |
| A. | Evaporated milk has less water than condensed milk |
| B. | Evaporated milk can be stored non-refrigerated, whereas condensed milk requires refrigeration |
| C. | Condensed milk has a lower fat content than evaporated milk |
| D. | Condensed milk comes in smaller size containers than evaporated milk |
| Answer» C. Condensed milk has a lower fat content than evaporated milk | |
| 15. |
Condensed milk on the grocery shelf may have ________added. |
| A. | Salt |
| B. | Minerals |
| C. | Sugar |
| D. | Cream |
| Answer» D. Cream | |
| 16. |
Fat globules in raw milk average about ____________________in diameter. |
| A. | of 1/25,000 of an inch, more or less 1 micron |
| B. | of 6/25,000 of an inch, more or less 6 microns |
| C. | of 1/2,500 of an inch, more or less 100 microns |
| D. | of 1/250 of an inch, more or less 1000 microns |
| Answer» C. of 1/2,500 of an inch, more or less 100 microns | |
| 17. |
The first milk produced after parturition is called? |
| A. | Colostrum |
| B. | Celestial |
| C. | Serial |
| D. | Coliseum |
| Answer» B. Celestial | |
| 18. |
pH range required for streptomycin production is __________ |
| A. | 7-8 |
| B. | 5-8 |
| C. | 4-5 |
| D. | 9-10 |
| Answer» B. 5-8 | |
| 19. |
How is streptomycin recovered? |
| A. | Paper chromatography |
| B. | Hydrophobic chromatography |
| C. | Size exclusion chromatography |
| D. | Ion exchange chromatography |
| Answer» E. | |
| 20. |
Streptomycin is _____ antibiotic. |
| A. | Narrow spectrum |
| B. | Broad spectrum |
| C. | Narrow and broad spectrum |
| D. | Medium spectrum |
| Answer» C. Narrow and broad spectrum | |
| 21. |
How is penicillin stored? |
| A. | Filtration |
| B. | Crystallization |
| C. | Distillation |
| D. | Sublimation |
| Answer» C. Distillation | |
| 22. |
The doubling time of Penicillium notatum is ___________ |
| A. | 6 hrs |
| B. | 5 hrs |
| C. | 4 hrs |
| D. | 3 hrs |
| Answer» B. 5 hrs | |
| 23. |
pH required for the production of penicillin will be ______________ |
| A. | 8 |
| B. | 7.5 |
| C. | 6.5 |
| D. | 5.0 |
| Answer» D. 5.0 | |
| 24. |
What is the precursor of penicillin? |
| A. | Benzylpenicillin |
| B. | Isopenicillin N |
| C. | phenylacetic acid |
| D. | L-α aminoadipic acid |
| Answer» D. L-α aminoadipic acid | |
| 25. |
Penicillium chrysogenum produce penicillin. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 26. |
Penicillin inhibits cell wall synthesis. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 27. |
Penicillin is active against ____________ |
| A. | Gram +ve bacteria |
| B. | Gram-ve bacteria |
| C. | All virus |
| D. | All bacteria |
| Answer» B. Gram-ve bacteria | |
| 28. |
How inoculum is prepared in the production of antibiotics? |
| A. | On solid media |
| B. | On liquid media |
| C. | First on solid media than on liquid media |
| D. | On suspension |
| Answer» D. On suspension | |
| 29. |
Antibiotics are mainly produced by _________ |
| A. | Bacteria |
| B. | Algae |
| C. | Fungi |
| D. | Fungi and bacteria |
| Answer» E. | |
| 30. |
How many antibiotics have still been isolated? |
| A. | 5000 |
| B. | 2000 |
| C. | 7000 |
| D. | 3000 |
| Answer» D. 3000 | |
| 31. |
Who discovered the first antibiotic? |
| A. | Alexander Fleming |
| B. | Louis Pasteur |
| C. | Francis Crick |
| D. | Kary Mullis |
| Answer» B. Louis Pasteur | |
| 32. |
What are antibiotics? |
| A. | Nutrient supplements |
| B. | Anti-cancer drugs |
| C. | Anti-microbial drugs |
| D. | Anti-ulcer drugs |
| Answer» D. Anti-ulcer drugs | |
| 33. |
Graphics composed of patterns of dots called pixels. |
| A. | CAD |
| B. | Vector |
| C. | Animation |
| D. | Raster |
| Answer» E. | |
| 34. |
Graphic object composed of patterns of lines, points, circles etc. |
| A. | CAD |
| B. | Vector |
| C. | Animation |
| D. | Raster |
| Answer» C. Animation | |
| 35. |
The forms that can be used for a variety of inventory applications. |
| A. | vector form |
| B. | hanDbase forms |
| C. | pendragon forms |
| D. | html forms |
| Answer» D. html forms | |
| 36. |
A package that allows individuals to use personal computers for storing and retrieving their personal information. |
| A. | Animation package |
| B. | Spreadsheet package |
| C. | Graphics package |
| D. | Personal assistance package |
| Answer» E. | |
| 37. |
What is wind shear? |
| A. | The extreme case of airspeed effect on the aircraft |
| B. | The extreme case of wind effect on the aircraft |
| C. | The extreme case of temperature effect on the wind |
| D. | The extreme case of altitude effect on the wind |
| Answer» C. The extreme case of temperature effect on the wind | |
| 38. |
The horizontal component of the true airspeed is _______________ |
| A. | increased by tailwind |
| B. | decreased by tailwind |
| C. | increased by headwind |
| D. | unaffected by the airspeed |
| Answer» B. decreased by tailwind | |
| 39. |
The rate of climb or descent relative to air mass is unaffected by the tailwind. |
| A. | True |
| B. | False |
| Answer» C. | |
| 40. |
What is meant by perceived performance? |
| A. | Visualization of the aircraft with respect to wind |
| B. | Visualization of the aircraft with respect to aircraft relative to ground |
| C. | Visualization of the aircraft with respect to wind with respect to ground |
| D. | Visualization of the aircraft with respect to any one frame such as aircraft or ground |
| Answer» E. | |
| 41. |
The performance relative to ground is effected by the wind. |
| A. | True |
| B. | False |
| Answer» C. | |
| 42. |
It is assumed zero velocity datum at the aerodynamic center of the aircraft. |
| A. | True |
| B. | False |
| Answer» C. | |
| 43. |
The flight path is calculated relative to ________ |
| A. | air mass |
| B. | still air condition |
| C. | air mass and still air condition |
| D. | airspeed |
| Answer» B. still air condition | |
| 44. |
The relative velocity of the wind produces boundary layer close to the ground which ___________ |
| A. | decreases the wind speed with decrease in height |
| B. | increases the wind speed with decrease in height |
| C. | makes the wind speed unaffected |
| D. | constantly increases |
| Answer» B. increases the wind speed with decrease in height | |
| 45. |
The aircraft is taken to the level ground operating for ________ |
| A. | considering vertical component of the wind |
| B. | considering horizontal component of the wind |
| C. | considering both horizontal and vertical component of the wind |
| D. | neglecting the effect of wind |
| Answer» C. considering both horizontal and vertical component of the wind | |
| 46. |
Wind is the relative velocity between the air mass and the ground. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 47. |
In homogeneous catalysis_________ |
| A. | All reactants are in the same rate |
| B. | The catalyst is in a different state to the reactants |
| C. | The reactants and catalyst are in the same rate |
| D. | All the products are in the same state |
| Answer» D. All the products are in the same state | |
| 48. |
If the temperature of a reaction is decreased, what effect will this have on the rate of reaction? |
| A. | The rate of reaction will increase |
| B. | The rate of reaction will decrease |
| C. | The reaction will stop |
| D. | No effect on reaction |
| Answer» C. The reaction will stop | |
| 49. |
The overall conversion of reactants can be increased in spite of increasing of the residence time. |
| A. | True |
| B. | False |
| Answer» C. | |
| 50. |
Which of the following is not an example of convectiton? |
| A. | After a car is turned on, the engine becomes hot. |
| B. | Steaming cup of hot tea |
| C. | Ice melting |
| D. | Hot air balloon |
| Answer» B. Steaming cup of hot tea | |