MCQOPTIONS
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MCQOPTIONS
This section includes 5314 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1401. |
Reinforced concrete shells are ideally suited to cover floor spaces of up to __________ |
| A. | 15m |
| B. | 25m |
| C. | 30m |
| D. | 40m |
| Answer» D. 40m | |
| 1402. |
The concrete shell roof has been widely used to cover __________ |
| A. | Small floor spaces |
| B. | Large floor spaces |
| C. | Middle span spaces |
| D. | Edge floor spaces |
| Answer» C. Middle span spaces | |
| 1403. |
If the minimum work of separation is 100KJ and the lost work is 1000KJ, what is the efficiency of separation process? |
| A. | 10% |
| B. | 11% |
| C. | 9.09% |
| D. | 11.11% |
| Answer» D. 11.11% | |
| 1404. |
What is the lost work is absolute temperature is 303K and the change in entropy is 1000KJ/h-k |
| A. | 697KJ/h-k |
| B. | 303000KJ/h |
| C. | 3030KJ/h |
| D. | 30300KJ/h-k |
| Answer» C. 3030KJ/h | |
| 1405. |
Which of the following is a correct equation of energy balance? |
| A. | ∑out of system nh+Q+Ws – ∑insystem nh+Q+Ws=0 |
| B. | ∑out of system nh+Ws- ∑insystem nh+Q+Ws=0 |
| C. | ∑out of system nh+Q+Ws – ∑insystem nh+Ws=0 |
| D. | ∑out of system nh+Ws – ∑insystem nh+Ws=0 |
| Answer» B. ∑out of system nh+Ws- ∑insystem nh+Q+Ws=0 | |
| 1406. |
Which of the following are true for the singleton class? |
| A. | Singleton classes should be used whenever it is important that only a single instance of a class exist and that that single instance be widely accessible |
| B. | The Singleton pattern can also be used, with slight modifications, when a limited number of instances greater than one are desired |
| C. | Access restrictions are usually easy to add by restricting the visibility of either the class or the factory method |
| D. | All of the mentioned |
| Answer» E. | |
| 1407. |
What are the drawbacks for singleton class? |
| A. | Many languages do not allow classes to be values assignable to variables. |
| B. | Singleton classes can be subclassed, and the singleton factory method can return a sub-class instance |
| C. | Classes can easily replace only single instances |
| D. | All of the internship |
| Answer» E. | |
| 1408. |
Most object-oriented languages and systems provide which of these ways to create new objects? |
| A. | Instantiating a class using one of its constructors |
| B. | Cloning an existing object |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 1409. |
Which of the following statements about superheaters is TRUE? |
| A. | Condensation losses in the cylinders and steam pipes are reduced |
| B. | Turbine erosion is avoided |
| C. | Increases efficiency of the steam plant |
| D. | Steam consumption of the engine is increased |
| Answer» E. | |
| 1410. |
What is the function of a superheater? |
| A. | It increases the temperature of the air being supplied to furnace |
| B. | It increases the temperature of steam above saturation temperature |
| C. | It increases the temperature of feed water |
| D. | It increases the temperature of the flue gases leaving the furnace |
| Answer» C. It increases the temperature of feed water | |
| 1411. |
Which of the following statements about air preheaters is FALSE? |
| A. | It increases the temperature of air being supplied to the furnace |
| B. | Storage type air preheaters cannot be used in larger plants |
| C. | The temperature of the hot gases released through the chimney is kept minimum |
| D. | It facilitates the burning of fuel |
| Answer» C. The temperature of the hot gases released through the chimney is kept minimum | |
| 1412. |
The degree of preheating does not depend on _____ |
| A. | type of fuel |
| B. | initial temperature of air |
| C. | type of fuel burning equipment |
| D. | boiler and furnace ratings |
| Answer» C. type of fuel burning equipment | |
| 1413. |
Which of the following is NOT a valid type of air preheater? |
| A. | Tubular type |
| B. | Plate type |
| C. | Temperature type |
| D. | Storage type |
| Answer» D. Storage type | |
| 1414. |
Which of the following statement about convective superheater is TRUE? |
| A. | It is located in the furnace |
| B. | It absorbs heat from the burning fuel through radiant process |
| C. | It absorbs heat from the flue gases |
| D. | It is used where very high superheat temperature is required |
| Answer» D. It is used where very high superheat temperature is required | |
| 1415. |
What is the function of a steam trap? |
| A. | It is used to store stem once the generation is complete |
| B. | It prevents the leakage of steam from the boiler |
| C. | It is used to increase the temperature of the steam |
| D. | It captures the condensed steam from steam pipes and steam separators |
| Answer» E. | |
| 1416. |
Which of the following is NOT a valid type of steam separator? |
| A. | Baffle (Impact) type |
| B. | Tubular type |
| C. | Reverse current type |
| D. | Centrifugal type |
| Answer» C. Reverse current type | |
| 1417. |
Steam separator reduces the wetness of the steam before it enters the engine or turbine. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1418. |
Convective superheater is placed in the furnace and it receives heat from the burning fuel through radiation. |
| A. | True |
| B. | False |
| Answer» C. | |
| 1419. |
Voltage at the neutral point oscillates at frequency of 2ω, this phenomenon is called as _________ |
| A. | oscillating neutral |
| B. | doubling voltage |
| C. | doubling current |
| D. | doubling neutral |
| Answer» B. doubling voltage | |
| 1420. |
Rate of change of voltage in star/star connection is ______________ |
| A. | ω |
| B. | 2 ω |
| C. | 3 ω |
| D. | Can’t determine |
| Answer» C. 3 ω | |
| 1421. |
In star/star connection the voltage can be correctly expressed as ____________ |
| A. | eaN = ea sin 2ωt + ea3 sin 3ωt |
| B. | eaN = ea sin ωt + ea3sin 3ωt |
| C. | eaN = ea sin 3ωt + ea3sin 3ωt |
| D. | eaN = ea sin 6ωt + ea3sin 3ωt |
| Answer» C. eaN = ea sin 3ωt + ea3sin 3ωt | |
| 1422. |
Apart from connection which of the following is different in star/delta or delta/star compare to delta/delta? |
| A. | Flux is flat-topped |
| B. | Impedance offered to third-harmonic currents in delta is less |
| C. | Impedance offered to third-harmonic currents in delta is constant |
| D. | Impedance offered to third-harmonic currents in delta is more |
| Answer» E. | |
| 1423. |
In delta/delta connection flux is almost _________________ |
| A. | sinusoidal |
| B. | flat-topped |
| C. | triangular |
| D. | square wave |
| Answer» B. flat-topped | |
| 1424. |
Core flux in the transformer is _______________ |
| A. | sinusoidal |
| B. | flat-topped |
| C. | square wave |
| D. | triangular |
| Answer» C. square wave | |
| 1425. |
For very high voltage transformers which connection is cheaper on primary side? |
| A. | Star |
| B. | Delta |
| C. | Open delta |
| D. | Can be star/ delta/ open delta |
| Answer» B. Delta | |
| 1426. |
What does the yeast DNA fragment present in YRP7 consist of? |
| A. | TRP1 and origin |
| B. | TRP1 and gene of interest |
| C. | TRP1 and cos sites |
| D. | TRP1 and codons |
| Answer» B. TRP1 and gene of interest | |
| 1427. |
What is the function of TRP1 gene? |
| A. | Tryptophan biosynthesis |
| B. | Tyrosine biosynthesis |
| C. | Tetracycline biosynthesis |
| D. | Termination |
| Answer» B. Tyrosine biosynthesis | |
| 1428. |
TRP1 gene is contained in which of the following? |
| A. | YRP7 |
| B. | YIP2 |
| C. | YRP3 |
| D. | YIP3 |
| Answer» B. YIP2 | |
| 1429. |
What does “R” in YRP vector stand for? |
| A. | Recombination |
| B. | Replicative |
| C. | Replication |
| D. | Reverse combining |
| Answer» C. Replication | |
| 1430. |
What does “I” in Yips vectors stand for? |
| A. | Infected |
| B. | Integrative |
| C. | Insertional |
| D. | Initiation |
| Answer» C. Insertional | |
| 1431. |
What does the word episomal in YEps indicate? |
| A. | Expression |
| B. | Replication |
| C. | Independent replication |
| D. | Mutation |
| Answer» D. Mutation | |
| 1432. |
Several factors such as the thickness of stratum corneum, presence of hair follicles, trauma, hydration of the skin, Grooming, exposure to chemicals determine the passive absorption of drugs from the surface of the skin to below. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1433. |
Intramuscular drug absorption is faster than intravascular. |
| A. | True |
| B. | False |
| Answer» C. | |
| 1434. |
A drug in the concentrated injection is absorbed faster. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1435. |
Which of the following drug is not intended for pulmonary administration? |
| A. | Bronchodilators |
| B. | Antiallergics |
| C. | NSAIDs |
| D. | Anti-inflammatory steroids |
| Answer» D. Anti-inflammatory steroids | |
| 1436. |
Which of the following decreasing order of blood flow rate through the muscular tissue is in the right order? |
| A. | Arm > thigh > buttocks |
| B. | Arm > buttocks > thigh |
| C. | Buttocks > thigh > arm |
| D. | Thigh > arm > buttocks |
| Answer» B. Arm > buttocks > thigh | |
| 1437. |
What is the principal barrier for the drugs on the topical application? |
| A. | The Dermis |
| B. | The subcutaneous fat tissue |
| C. | The stratum corneum |
| D. | The blood vessels below the skin |
| Answer» D. The blood vessels below the skin | |
| 1438. |
Which is the largest organ of the human body? |
| A. | Liver |
| B. | Stomach |
| C. | Skin |
| D. | Lungs |
| Answer» D. Lungs | |
| 1439. |
Which one of the following is not an advantage of sublingual or buccal administration? |
| A. | Rapid absorption and higher blood levels |
| B. | No first-pass hepatic metabolism |
| C. | No degradation of drugs |
| D. | Limited surface area |
| Answer» E. | |
| 1440. |
Which one of the following is the buccal route? |
| A. | Drug placed between cheek and gum |
| B. | Drug place between the tongue and upper palate |
| C. | Drug placed under the tongue |
| D. | Drug crushed and placed under the tongue |
| Answer» B. Drug place between the tongue and upper palate | |
| 1441. |
Which one is the sublingual route? |
| A. | Drug placed between cheek and gum |
| B. | Drug place between the tongue and upper palate |
| C. | Drug placed under the tongue |
| D. | Drug crushed and placed under the tongue |
| Answer» D. Drug crushed and placed under the tongue | |
| 1442. |
The following command will save the contents of the buffer and overwrites the contents of existing file. |
| A. | True |
| B. | FalseView Answer |
| Answer» B. FalseView Answer | |
| 1443. |
To recover from a crash, we can use ____ command. |
| A. | :recover |
| B. | -r |
| C. | : x |
| D. | :recover and -r |
| Answer» E. | |
| 1444. |
vi editor stores most of its information in a hidden swap file. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1445. |
To return back to the editor from shell prompt we use _____ command. |
| A. | fg |
| B. | exit |
| C. | back |
| D. | fg and exit |
| Answer» E. | |
| 1446. |
‘:w’ command can be used to write selected lines. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1447. |
In ex-mode, last line is represented by ___ |
| A. | : |
| B. | $ |
| C. | > |
| D. | . |
| Answer» C. > | |
| 1448. |
Quit (:q) command doesn’t work if the buffer is unsaved. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1449. |
For a cohesive backfill with surcharge q, when at depth z0, pa=0, then the depth z0 is ___________ |
| A. | \(z_0=\frac{q-2c cotα}{γ} \) |
| B. | \(z_0=\frac{2c tanα}{γ}-\frac{q}{γ} \) |
| C. | \(z_0=\frac{2 cotα}{γ}+\frac{q}{γ} \) |
| D. | \(z_0=\frac{cotα}{γ}-\frac{q}{γ} \) |
| Answer» C. \(z_0=\frac{2 cotα}{γ}+\frac{q}{γ} \) | |
| 1450. |
The lateral pressure for cohesive backfill with surcharge q is ___________ |
| A. | pa=γzcot2 α-2c cotα+qcot2 α |
| B. | pa=γzcot2 α+2c cotα+cot2α |
| C. | pa=-2c cotα-cot2 α |
| D. | pa=γzcot2 α/2c cotα |
| Answer» B. pa=γzcot2 α+2c cotα+cot2α | |