MCQOPTIONS
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MCQOPTIONS
This section includes 2095 Mcqs, each offering curated multiple-choice questions to sharpen your Php knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
What is the pressure side of a refrigerating system in which evaporator is used? |
| A. | Low pressure |
| B. | Zero pressure |
| C. | Negative pressure |
| D. | High pressure |
| Answer» B. Zero pressure | |
| 352. |
Why is the evaporator used? |
| A. | To improve C.O.P. |
| B. | To decrease the refrigeration effect |
| C. | To absorb heat |
| D. | To reject heat |
| Answer» D. To reject heat | |
| 353. |
What is the representative fraction of the kilometer scale if 20 miles is represented as 5 cm and maximum length to be measured is 5 km? (1 mile = 1.609 km) |
| A. | 1:4 |
| B. | 1:643600 |
| C. | 1:1.287 |
| D. | 0.7768:1 |
| Answer» C. 1:1.287 | |
| 354. |
In a map, 30 miles is represented by 20 cm. What is the length of the kilometer scale if the maximum length to be measured is 10 km? (1 mile = 1.609 km) |
| A. | 4.14 cm |
| B. | 10.73 cm |
| C. | 9.32 cm |
| D. | 24.14 cm |
| Answer» B. 10.73 cm | |
| 355. |
What are the two parts of the Vernier scale? |
| A. | Primary scale and secondary scale |
| B. | Plain scale and comparative scale |
| C. | Vernier scale and secondary scale |
| D. | Primary scale and Vernier scale |
| Answer» E. | |
| 356. |
The bimolecular biradical mechanism in spontaneous thermal polymerization is very appreciated for its successful attempts to induce polymerization by biradicals formed. State true or false. |
| A. | true |
| B. | false |
| Answer» C. | |
| 357. |
What kind of chain-initiating active centre is generated by bimolecular initiation mechanism of spontaneous thermal polymerization? |
| A. | monoradical |
| B. | biradical |
| C. | ion |
| D. | none of the mentioned |
| Answer» C. ion | |
| 358. |
How does the overall rate of spontaneous thermal polymerization vary, when the monomer concentration is doubled? |
| A. | halved |
| B. | doubled |
| C. | quadrupled |
| D. | remains constant |
| Answer» D. remains constant | |
| 359. |
Consider the following graph plotted between conversion and time taken, where benzoyl peroxide is used as an initiator.Which of the following curve represents the lowest monomer concentration? |
| A. | 1 |
| B. | 5 |
| C. | 4 |
| D. | 3 |
| Answer» C. 4 | |
| 360. |
Consider the consequences of rise in medium viscosity in gel effect.I. There is hindrance to termination reaction.II. The propagation reaction rises rapidly.III. Reduction in diffusion of macro-radicals.IV. Intrinsic reactivity of chain radicals is lowered.Which of the following is true? |
| A. | I, III |
| B. | I,II &III |
| C. | I, II, III & IV |
| D. | I, II &IV |
| Answer» B. I,II &III | |
| 361. |
What is the characteristic feature of the gel effect in radical polymerization? |
| A. | increase in kinetic rate |
| B. | increase in molecular weight of product polymer |
| C. | formation of highly viscous mass |
| D. | all of the mentioned |
| Answer» E. | |
| 362. |
Sideslip sensors are only used in experimental aircraft and not in general aviation or commercial aircraft. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 363. |
Which flight critical system is the angle of attack indicator a part of? |
| A. | Stall warning system |
| B. | Airspeed indicator system |
| C. | Landing system |
| D. | Rate of climb indicator system |
| Answer» B. Airspeed indicator system | |
| 364. |
What error will a 10°C error in temperature shown in true airspeed? |
| A. | 10 Knots |
| B. | 20 Knots |
| C. | 0.2 Knots |
| D. | Greater than 1 Knot |
| Answer» E. | |
| 365. |
What is the temperature of the air surrounding the aircraft called as? |
| A. | Stagnation temperature |
| B. | Static temperature |
| C. | Total temperature |
| D. | Overall temperature |
| Answer» C. Total temperature | |
| 366. |
Which among the following is correct, based on the given code below? |
| A. | Cout can’t be used inside the constructor |
| B. | Constructor must contain only initializations |
| C. | This program works fine |
| D. | This program produces errorsView Answer |
| Answer» D. This program produces errorsView Answer | |
| 367. |
If constructors of a class are defined in private access, then __________ |
| A. | The class can’t be inherited |
| B. | The class can be inherited |
| C. | Instance can be created only in another class |
| D. | Instance can be created anywhere in the program |
| Answer» B. The class can be inherited | |
| 368. |
When is the static constructor called? |
| A. | After the first instance is created |
| B. | Before default constructor call of first instance |
| C. | Before first instance is created |
| D. | At time of creation of first instance |
| Answer» D. At time of creation of first instance | |
| 369. |
Default constructor initializes all data members as ___________ |
| A. | All numeric member with some garbage values and string to random string |
| B. | All numeric member with some garbage values and string to null |
| C. | All numeric member with zero and strings to random value |
| D. | All numeric member with zero and strings to null |
| Answer» E. | |
| 370. |
Within a class, only one static constructor can be created. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 371. |
Which among the following is true for static constructor? |
| A. | Static constructors are called with every new object |
| B. | Static constructors are used initialize data members to zero always |
| C. | Static constructors can’t be parameterized constructors |
| D. | Static constructors can be used to initialize the non-static members also |
| Answer» D. Static constructors can be used to initialize the non-static members also | |
| 372. |
When and how many times a static constructor is called? |
| A. | Created at time of object destruction |
| B. | Called at first time when an object is created and only one time |
| C. | Called at first time when an object is created and called with every new object creation |
| D. | Called whenever an object go out of scope |
| Answer» C. Called at first time when an object is created and called with every new object creation | |
| 373. |
Why do we use static constructors? |
| A. | To initialize the static members of class |
| B. | To initialize all the members with static value |
| C. | To delete the static members when not required |
| D. | To clear all the static members initialized values |
| Answer» B. To initialize all the members with static value | |
| 374. |
Which type of constructor can’t have a return type? |
| A. | Default |
| B. | Parameterized |
| C. | Copy |
| D. | Constructors don’t have a return type |
| Answer» E. | |
| 375. |
Which specifier applies only to the constructors? |
| A. | Public |
| B. | Protected |
| C. | Implicit |
| D. | Explicit |
| Answer» E. | |
| 376. |
It’s necessary to pass object by reference in copy constructor because ____________ |
| A. | Constructor is not called in pass by reference |
| B. | Constructor is called in pass by reference only |
| C. | It passes the address of new constructor to be created |
| D. | It passes the address of new object to be created |
| Answer» B. Constructor is called in pass by reference only | |
| 377. |
Which constructor is called while assigning some object with another? |
| A. | Default |
| B. | Parameterized |
| C. | Copy |
| D. | Direct assignment is used |
| Answer» D. Direct assignment is used | |
| 378. |
Choose the correct option for the following code. |
| A. | Object s1 should be passed with argument |
| B. | Object s2 should not be declared |
| C. | Object s2 will not be created, but program runs |
| D. | Program gives compile time errorView Answer |
| Answer» E. | |
| 379. |
How many types of constructors are available, in general, in any language? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» C. 4 | |
| 380. |
In the XGM converter, the transfer function maintains the rectangular shape. |
| A. | True |
| B. | False |
| Answer» C. | |
| 381. |
The probe signal is inverse to that of the pump signal. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 382. |
The intensity modulated data on one signal wavelength is called as _______ |
| A. | Dispersed data |
| B. | Pump signal |
| C. | Probe signal |
| D. | Frequency signal |
| Answer» C. Probe signal | |
| 383. |
A _____________ wavelength converter utilizes the nonlinear properties of a semiconductor optical amplifier to perform the conversion process. |
| A. | Cross-gain modulation |
| B. | Cross-phase modulation |
| C. | Cross-absorption modulation |
| D. | Differential polarization modulation |
| Answer» B. Cross-phase modulation | |
| 384. |
__________ wavelength converters make use of a passive optical medium to exploit non-linear effects. |
| A. | Bipolar |
| B. | Optoelectronic |
| C. | Magnetic |
| D. | Coherent |
| Answer» E. | |
| 385. |
___________________ is defined as a process by which the wavelength of the transmitted signal is changed without altering the data carried by the signal. |
| A. | Wavelength conversion |
| B. | Attenuation |
| C. | Sigma management |
| D. | Wavelength dispersion |
| Answer» B. Attenuation | |
| 386. |
Correct way to convert a string to uppercase using string class method()? |
| A. | Upper() |
| B. | ToUpper() |
| C. | Object.ToUpper() |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 387. |
To perform comparison operation on strings supported operations are ____________ |
| A. | Compare() |
| B. | Equals() |
| C. | Assignment ‘==’ operator |
| D. | All of the mentioned |
| Answer» E. | |
| 388. |
What does the term ‘immutable’ means in term of string objects? |
| A. | We can modify characters included in the string |
| B. | We cannot modify characters contained in the string |
| C. | We cannot perform various operation of comparison, inserting, appending etc |
| D. | None of the mentioned |
| Answer» C. We cannot perform various operation of comparison, inserting, appending etc | |
| 389. |
The graph below shows the variation of _________ |
| A. | Yield v/s Water depth |
| B. | Yield v/s Field capacity |
| C. | Water depth v/s Yield |
| D. | Yield v/s Optimum water depth |
| Answer» B. Yield v/s Field capacity | |
| 390. |
For clayey soils, the depth of root-zone is less. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 391. |
Which factor doesn’t influence the root zone depth? |
| A. | Type of soil |
| B. | Type of crops grown |
| C. | Sub-soil formation |
| D. | The yield of the crop |
| Answer» E. | |
| 392. |
The productivity of crop increases with water reaches a maximum value then, falls down. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 393. |
The optimum utilisation of irrigation water means _________ |
| A. | Getting maximum yield with the maximum amount of water available |
| B. | Getting maximum yield with any amount of water |
| C. | Getting less yield with maximum water content |
| D. | Getting less yield with the least water content |
| Answer» C. Getting less yield with maximum water content | |
| 394. |
What is the strain on a hanging load, when a force of 5 Newton is applied on it and it expands the length of the object from 8cm to 12 cm? |
| A. | 2 |
| B. | 0.5 |
| C. | 1 |
| D. | 8 |
| Answer» C. 1 | |
| 395. |
What is the nature of the stress-strain graph of an elastic body? |
| A. | Asymptotic |
| B. | Linear |
| C. | Parabolic |
| D. | Non-Linear |
| Answer» C. Parabolic | |
| 396. |
Sheer stress occurs when a body expands due to external force. |
| A. | True |
| B. | False |
| Answer» C. | |
| 397. |
Pressure and stress both have same unit (i.e) “Pascal”. |
| A. | True |
| B. | False |
| C. | |
| Answer» B. False | |
| 398. |
Preloads can avoid resonance due to external disturbances. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 399. |
What is the strain on a hanging load, when a force of 1 Newton is applied on it and it expands the length of the object from 9cm to 12 cm? |
| A. | 2 |
| B. | 0.5 |
| C. | 1.2 |
| D. | 0.3334 |
| Answer» E. | |
| 400. |
What is the value of stress that occurs on an object when a force of 5 Newton is applied perpendicularly to an area of 1meter2? |
| A. | 2 Newton/meter2 |
| B. | 5 Newton/meter2 |
| C. | 1.2 Newton/meter2 |
| D. | 1 Newton/meter2 |
| Answer» C. 1.2 Newton/meter2 | |