MCQOPTIONS
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MCQOPTIONS
This section includes 2167 Mcqs, each offering curated multiple-choice questions to sharpen your Php knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
What is the number of crystals per unit mass of crystals ifVolume shape factor fv= 0.5Density of particle= 5kg/m3Characteristic size of crystal L= 0.67 |
| A. | 1.56 |
| B. | 7.89 |
| C. | 4.22 |
| D. | 4.15 |
| Answer» E. | |
| 202. |
What is the number of crystals per unit mass of crystals ifVolume shape factor fv= 0.5Density of particle= 5kg/m3Characteristic size of crystal L= 0.56 |
| A. | 5.67 |
| B. | 6.78 |
| C. | 7.11 |
| D. | 9.56 |
| Answer» D. 9.56 | |
| 203. |
What is the number of crystals per unit mass of crystals ifVolume shape factor fv= 0.5Density of particle= 5kg/m3Characteristic size of crystal L= 0.78 |
| A. | 1.56 |
| B. | 2.34 |
| C. | 2.56 |
| D. | 0.8 |
| Answer» D. 0.8 | |
| 204. |
What is the number of crystals per unit mass of crystals ifVolume shape factor fv= 0.5Density of particle= 5kg/m3Characteristic size of crystal L= 0.05 |
| A. | 0.01 |
| B. | 0.7 |
| C. | 0.6 |
| D. | 100000 |
| Answer» E. | |
| 205. |
What is the number of crystals per unit mass of crystals ifVolume shape factor fv= 0.5Density of particle= 5kg/m3Characteristic size of crystal L= 5 |
| A. | 0.01 |
| B. | 0.7 |
| C. | 0.6 |
| D. | 0.8 |
| Answer» B. 0.7 | |
| 206. |
In crystallization, solvent should dissolve large amount of solute at: |
| A. | Room temperature |
| B. | Boiling point |
| C. | Freezing point |
| D. | Slip melting point |
| Answer» C. Freezing point | |
| 207. |
What is the maximum usable temperature of radiation pyrometers? |
| A. | 1000 F |
| B. | 5000 F |
| C. | 10000 F |
| D. | No limit |
| Answer» E. | |
| 208. |
What does Stefan-Boltzmann law for radiation pyrometers denote? |
| A. | W = KT4 |
| B. | W = KT |
| C. | W = KT-4 |
| D. | W = K/T4 |
| Answer» B. W = KT | |
| 209. |
A radiation pyrometer is based on ___________ |
| A. | Planck’s law |
| B. | Stefan-Boltzmann law |
| C. | Rayleigh-Jeans law |
| D. | Sakuma-Hattori equation |
| Answer» C. Rayleigh-Jeans law | |
| 210. |
Which type of pyrometer uses an electric circuit? |
| A. | Controlling pyrometer |
| B. | Optical pyrometer |
| C. | Radiation pyrometer |
| D. | Recording pyrometer |
| Answer» B. Optical pyrometer | |
| 211. |
__________are used as protecting tubes in thermocouples above 2000 F. |
| A. | Wrought iron |
| B. | 14% chrome iron |
| C. | Nichrome |
| D. | Porcelain |
| Answer» E. | |
| 212. |
Which material is used when radiation pyrometers don’t produce a satisfactory result? |
| A. | Chromel-Alumel |
| B. | Iron-Constantan |
| C. | Copper-Constantan |
| D. | Rhodium-Platinum |
| Answer» E. | |
| 213. |
What is the most widely used method for metallurgical temperature measurement? |
| A. | Thermoelectric pyrometer |
| B. | Optical pyrometer |
| C. | Radiation pyrometer |
| D. | Recording pyrometer |
| Answer» B. Optical pyrometer | |
| 214. |
The ____________ is a design pattern in object-oriented programming that allows object composition to achieve the same code reuse as inheritance. |
| A. | Adapter Pattern |
| B. | Bridge Pattern |
| C. | Decorator Pattern |
| D. | Delegation Pattern |
| Answer» E. | |
| 215. |
The _______________ is a design pattern that adds behavior to an individual object, either statically or dynamically, without affecting the behavior of other objects from the same class. |
| A. | Adapter Pattern |
| B. | Bridge Pattern |
| C. | Decorator Pattern |
| D. | Composite Pattern |
| Answer» D. Composite Pattern | |
| 216. |
The ___________ is a software design pattern that allows the interface of an existing class to be used as another interface. |
| A. | Adapter Pattern |
| B. | Bridge Pattern |
| C. | Decorator Pattern |
| D. | Composite Pattern |
| Answer» B. Bridge Pattern | |
| 217. |
Applying the _________ pattern to a class means removing the creation of all object instances for which this class isn’t directly responsible and passing any needed instances instead. |
| A. | Message Passing |
| B. | Inversion Of Control |
| C. | Observer Pattern |
| D. | Strategy Pattern |
| Answer» C. Observer Pattern | |
| 218. |
The most important point to consider when writing a mock is that it shouldn’t have any __________. |
| A. | Redundancy |
| B. | Abstraction |
| C. | Matchers |
| D. | Business Logic |
| Answer» E. | |
| 219. |
To implement a custom URL protocol handler, the URL method __________ is called. |
| A. | setURLStreamHandlerFactory |
| B. | setURLStreamFactory |
| C. | setURLStreamHandlerFactorySetting |
| D. | setStreamHandlerFactory |
| Answer» B. setURLStreamFactory | |
| 220. |
Where are HCI architectures used? |
| A. | Virtual reality |
| B. | Mobile computing |
| C. | CSCW systems |
| D. | All of the mentioned |
| Answer» E. | |
| 221. |
What model does MVC evolves to? |
| A. | Arch Model |
| B. | Slinky Model |
| C. | PAC Model |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 222. |
What is MVC’s main guard against change? |
| A. | Part Whole Decomposition |
| B. | Layering- placing different classes of functionality into distinct layers |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» B. Layering- placing different classes of functionality into distinct layers | |
| 223. |
What is the problem for ht developer in using unit operation? |
| A. | Understanding the requirements |
| B. | Mapping the requirements to a structural solution |
| C. | Identifying and resolving conflicting structural solution |
| D. | All of the mentioned |
| Answer» E. | |
| 224. |
The resultant of two alternating sinusoidal voltages or currents can be found using ___________ |
| A. | Triangular law |
| B. | Parallelogram law |
| C. | Either triangular or parallelogram law |
| D. | Neither triangular nor parallelogram law |
| Answer» C. Either triangular or parallelogram law | |
| 225. |
The instantaneous values of two alternating voltages are given as:v1=60sinθ and v2=40sin(θ − π/3). Find the instantaneous difference. |
| A. | 53 sin(71.5°) V |
| B. | 53 sin( 79..5°) V |
| C. | 53 sin(26.5°) V |
| D. | 53 cos(36.5°) V |
| Answer» C. 53 sin(26.5°) V | |
| 226. |
The instantaneous values of two alternating voltages are given as _________v1=60sinθ and v2=40sin(θ − π/3). Find the instantaneous sum. |
| A. | 87.2 sin(36.5°) V |
| B. | 87.2 sin( 0.5°) V |
| C. | 87.2 sin(26.5°) V |
| D. | 87.2 cos(36.5°) V |
| Answer» B. 87.2 sin( 0.5°) V | |
| 227. |
If two current phasors, having magnitude 12A and 5A intersect at an angle of 90 degrees, calculate the resultant current. |
| A. | 13 A |
| B. | 10 A |
| C. | 6 A |
| D. | 5 A |
| Answer» B. 10 A | |
| 228. |
If the phasors are drawn to represent the maximum values instead of the rms values, what would happen to the phase angle between quantities? |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | Becomes zero |
| Answer» D. Becomes zero | |
| 229. |
Ammeters and voltmeters are calibrated to read? |
| A. | RMS value |
| B. | Peak value |
| C. | Average value |
| D. | Instantaneous value |
| Answer» B. Peak value | |
| 230. |
What is the effective temperature needed in a hall with a high density of occupants? |
| A. | Higher |
| B. | Lower |
| C. | Much higher |
| D. | Has no effect of density of occupants |
| Answer» B. Lower | |
| 231. |
What is the effective temperature needed if a person is sitting in a cinema hall? |
| A. | Higher |
| B. | Lower |
| C. | Much lower |
| D. | Has no effect of kind of activity |
| Answer» B. Lower | |
| 232. |
What is the effective temperature needed if a person is doing a heavy activity like working with heavy loads? |
| A. | Higher |
| B. | Lower |
| C. | Much higher |
| D. | Has no effect of kind of activity |
| Answer» C. Much higher | |
| 233. |
What is the effective temperature needed if a person is entering his office? |
| A. | Higher |
| B. | Lower |
| C. | Much higher |
| D. | Has no effect of duration of stay |
| Answer» C. Much higher | |
| 234. |
What is the effective temperature needed if the duration of stay in a room is short? |
| A. | Higher |
| B. | Lower |
| C. | Much lower |
| D. | Has no effect of duration of stay |
| Answer» B. Lower | |
| 235. |
People living in colder climate regions feel comfortable at lower effective temperature. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 236. |
What is the value of an increase in effective temperature do children need than older ones in case of maternity halls? |
| A. | 1 to 2°C |
| B. | 2 to 3°C |
| C. | 3 to 4°C |
| D. | 0 to 1°C |
| Answer» C. 3 to 4°C | |
| 237. |
Which of the following is true about effective temperature between young and older people? |
| A. | Tyoung > Told |
| B. | Tyoung < Told |
| C. | Tyoung ≪ Told |
| D. | Tyoung = Told |
| Answer» B. Tyoung < Told | |
| 238. |
What is the value of an increase in effective temperature do women need than men? |
| A. | about 1°C |
| B. | about 0.25°C |
| C. | about 0.5°C |
| D. | about 2°C |
| Answer» D. about 2°C | |
| 239. |
Men need a higher effective temperature than women. |
| A. | True |
| B. | False |
| Answer» C. | |
| 240. |
A person with heavy clothing needs ____________ optimum temperature as compared to a person with light clothing. |
| A. | higher |
| B. | lesser |
| C. | zero |
| D. | same |
| Answer» B. lesser | |
| 241. |
A person with _________ clothing needs ___________ optimum temperature. |
| A. | heavy, higher |
| B. | heavy, lesser |
| C. | light, higher |
| D. | light, lesser |
| Answer» E. | |
| 242. |
Which of the following provides the relationship between the optimum indoor effective temperature and optimum outdoor effective temperature? |
| A. | Clothing |
| B. | Occupants |
| C. | Duration of stay |
| D. | Climatic and seasonal differences |
| Answer» E. | |
| 243. |
What is the value of the optimum effective temperature in summer? |
| A. | 23 |
| B. | 22 |
| C. | 21 |
| D. | 24 |
| Answer» C. 21 | |
| 244. |
What is the value of optimum effective temperature in winter? |
| A. | 17 |
| B. | 18 |
| C. | 19 |
| D. | 20 |
| Answer» D. 20 | |
| 245. |
IC Engine pistons are cast in ___________ |
| A. | Investment Moulds |
| B. | Shell Moulds |
| C. | Metal Moulds |
| D. | Ceramic Moulds |
| Answer» D. Ceramic Moulds | |
| 246. |
A Ceramic Mould is used to produce thin sections of the high melting point metals and alloys. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 247. |
_________ is produced with the help of heated iron/steel patterns. |
| A. | Loam Mould |
| B. | Shell Mould |
| C. | Ceramic Mould |
| D. | Metal Mould |
| Answer» C. Ceramic Mould | |
| 248. |
_________________ is a container which when poured with molten metal produce a casting of the shape of the mould. |
| A. | Mould |
| B. | Pattern |
| C. | Core |
| D. | Spruee |
| Answer» B. Pattern | |
| 249. |
Which of the following components can be made using titanium? |
| A. | Wheelchairs |
| B. | Golf clubs, bicycles |
| C. | Sunscreen, balloons |
| D. | Wheelchairs, golf clubs, bicycles |
| Answer» E. | |
| 250. |
The F-22 aircraft is made of approximately around ___ % titanium. |
| A. | 15 |
| B. | 69 |
| C. | 39 |
| D. | 82 |
| Answer» D. 82 | |