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.
| 401. |
During translation of proteins, the aminoacyl tRNA arrives at ____________ |
| A. | Ribosomal A site |
| B. | Ribosomal P site |
| C. | Ribosomal T site |
| D. | Ribosomal S site |
| Answer» B. Ribosomal P site | |
| 402. |
Application of non-ionizing ultraviolet radiation causes _________ |
| A. | formation of pyrimidine dimers |
| B. | deletion of pyrimidine bases |
| C. | formation of methyl guanine |
| D. | formation of methyl thymine |
| Answer» B. deletion of pyrimidine bases | |
| 403. |
Hybrid vigour results from ____________ |
| A. | dominance |
| B. | co-dominance |
| C. | over dominance |
| D. | incomplete dominance |
| Answer» D. incomplete dominance | |
| 404. |
Hybrid vigour is referred to __________ |
| A. | superior phenotype of a hybrid |
| B. | increased fertility of a hybrid |
| C. | increased mortality of a hybrid |
| D. | decreased function of a hybrid |
| Answer» B. increased fertility of a hybrid | |
| 405. |
An example of extensively polyploid organism is _________ |
| A. | Xenopus laevis |
| B. | Homo sapiens |
| C. | Drosophila melanogaster |
| D. | Equus caballus |
| Answer» B. Homo sapiens | |
| 406. |
The nucleosome is composed of how many histone proteins? |
| A. | 7 |
| B. | 9 |
| C. | 8 |
| D. | 10 |
| Answer» C. 8 | |
| 407. |
In FISH technology, which fluorescence confirms a BCR/ABL translocation? |
| A. | Red signal |
| B. | Green signal |
| C. | Yellow signal |
| D. | Orange signal |
| Answer» D. Orange signal | |
| 408. |
Like DFAs, NFAs only recognize regular languages. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 409. |
Which is the application of NFA? |
| A. | A regular language is produced by union of two regular languages |
| B. | The concatenation of two regular languages is regular |
| C. | The Kleene closure of a regular language is regular |
| D. | All of the mentioned |
| Answer» E. | |
| 410. |
The subset construction shows that every NFA accepts a __________ |
| A. | String |
| B. | Function |
| C. | Regular language |
| D. | Context-free language |
| Answer» D. Context-free language | |
| 411. |
An NFA may be converted to a DFA using __________ |
| A. | Induction |
| B. | A construction |
| C. | Contradiction |
| D. | Compilation |
| Answer» C. Contradiction | |
| 412. |
A regular language corresponds to __________ |
| A. | An alphabet |
| B. | Set of strings over an alphabet |
| C. | A DFA only |
| D. | A DFA or an NFA |
| Answer» C. A DFA only | |
| 413. |
Conversion of a DFA to an NFA __________ |
| A. | Is impossible |
| B. | Requires the subset construction |
| C. | Is Chancy |
| D. | Is nondeterministic |
| Answer» C. Is Chancy | |
| 414. |
Why is current division necessary? |
| A. | In series current is the same |
| B. | In parallel current differs |
| C. | Because the voltage is also different |
| D. | Because of Kirchhoff’s laws. |
| Answer» C. Because the voltage is also different | |
| 415. |
Voltage division is necessary for parallel resistance networks |
| A. | True |
| B. | False |
| Answer» C. | |
| 416. |
R1 = 1Ω, R2 = 3Ω, R3 = 5Ω and R4 = 7Ω connected in parallel. Total Current = 23A. Then V, I1 , I2 =? |
| A. | 12.26v, 1.725, 2.875 |
| B. | 12.23v, 2.875, 1.725 |
| C. | 11.26v, 1.95, 1.74 |
| D. | 11.23v, 1.74, 1.95 |
| Answer» B. 12.23v, 2.875, 1.725 | |
| 417. |
R1 = 1Ω, R2 = 3Ω, R3 = 5Ω and R4 = 7Ω connected in series. Total voltage = 20V, Current I, V2 =? |
| A. | I = 1.23, V2 = 3.75 |
| B. | I = 1.25, V2 = 3.75 |
| C. | I = 1.15, V2= 3.73 |
| D. | I = 1.16, V2 = 3.72 |
| Answer» C. I = 1.15, V2= 3.73 | |
| 418. |
For a parallel connected resistor R1, R2 and a voltage of V volts. Current across the first resistor is given by |
| A. | I R1 |
| B. | I R2 |
| C. | I R1 / R1 + R2 |
| D. | I R2 / R1 + R2 |
| Answer» E. | |
| 419. |
Calculate i =? |
| A. | -1A |
| B. | +2A |
| C. | 8A |
| D. | -5A |
| Answer» C. 8A | |
| 420. |
Calculate Voltage across 2Ω Resistor where supply v= 10volts. |
| A. | 2V |
| B. | 3V |
| C. | 10V |
| D. | 4V |
| Answer» E. | |
| 421. |
If there are 3 Resistors R1, R2 and R3 in series and V is total voltage and I is total current then Voltage across R2 is |
| A. | V R3/ R1 + R2 + R3 |
| B. | V R2/ R1 + R2 + R3 |
| C. | V R1/R1 + R2 + R3 |
| D. | V |
| Answer» C. V R1/R1 + R2 + R3 | |
| 422. |
Where voltage division problem arises |
| A. | Series connected resistors |
| B. | Parallel connected resistors |
| C. | When resistors are equal |
| D. | Both series and parallel resistors. |
| Answer» B. Parallel connected resistors | |
| 423. |
If the normalized load impedance of a transmission line is 2, then the reflection co-efficient is: |
| A. | 0.33334 |
| B. | 1.33334 |
| C. | 0 |
| D. | 1 |
| Answer» B. 1.33334 | |
| 424. |
If the characteristic impedance of a transmission line 50 Ω and reflection coefficient is 0.0126+j0.1996, then load impedance is: |
| A. | 47.3+j19.7Ω |
| B. | 4.7+j1.97Ω |
| C. | 0.26+j0.16 |
| D. | data insufficient |
| Answer» B. 4.7+j1.97Ω | |
| 425. |
If SWR=1.5 with a wavelength of 4 cm and the distance between load and first minima is 1.48cm, then the reflection coefficient is: |
| A. | 0.0126+j0.1996 |
| B. | 0.0128 |
| C. | 0.26+j0.16 |
| D. | none of the mentioned |
| Answer» B. 0.0128 | |
| 426. |
Expression for ϴ means phase angle of the reflection co efficient r=|r|-e^jθ, the phase of the reflection co-efficient is: |
| A. | θ=2π+2βLmin |
| B. | θ=π+2βLmin |
| C. | θ=π/2+2βLmin |
| D. | θ=π+βLmin |
| Answer» C. θ=π/2+2βLmin | |
| 427. |
If the reflection coefficient of a transmission line is 0.4, then the standing wave ratio is: |
| A. | 1.3333 |
| B. | 2.3333 |
| C. | 0.4 |
| D. | 0.6 |
| Answer» C. 0.4 | |
| 428. |
If the standing wave ratio for a transmission line is 1.4, then the reflection coefficient for the line is: |
| A. | 0.16667 |
| B. | 1.6667 |
| C. | 0.01667 |
| D. | 0.96 |
| Answer» B. 1.6667 | |
| 429. |
A slotted line can be used to measure _____ and the distance of _____________ from the load. |
| A. | SWR, first voltage minimum |
| B. | SWR, first voltage maximum |
| C. | characteristic impedance, first voltage minimum |
| D. | characteristic impedance, first voltage maximum |
| Answer» B. SWR, first voltage maximum | |
| 430. |
Amount of CO2 in expired air is _________ |
| A. | 0.04% |
| B. | 0.03% |
| C. | 3.6% |
| D. | 21% |
| Answer» D. 21% | |
| 431. |
Partial pressure of oxygen in lungs is ____________ |
| A. | 60 mm Hg |
| B. | 40 mm Hg |
| C. | 110 mm Hg |
| D. | 100 mm Hg |
| Answer» E. | |
| 432. |
If RQ is 0.6 in a respiratory metabolism it would mean that _________ |
| A. | Carbohydrate is used as respiratory substrate |
| B. | Organic acids are used as respiratory substrate |
| C. | Oxidation of respiratory substrate consumed more O2 than CO2 produced |
| D. | Reaction is anaerobic |
| Answer» D. Reaction is anaerobic | |
| 433. |
Pulmonary ventilation movements are due to __________ |
| A. | Costal muscles and diaphragm |
| B. | Diaphragm |
| C. | Wall of lungs |
| D. | Costal muscles |
| Answer» B. Diaphragm | |
| 434. |
After deep inspiration maximum expiration of lungs is called ________ |
| A. | Vital capacity |
| B. | Total lung capacity |
| C. | Inspiratory capacity |
| D. | Functional residual capacity |
| Answer» B. Total lung capacity | |
| 435. |
When CO2 concentration in blood increased breathing becomes ____________ |
| A. | shallower and deeper |
| B. | slow and deep |
| C. | faster and deeper |
| D. | no effect on breathing |
| Answer» D. no effect on breathing | |
| 436. |
How much percent of CO2 is expired? |
| A. | 7% |
| B. | 32% |
| C. | 25% |
| D. | 20% |
| Answer» C. 25% | |
| 437. |
Oxygen is carried by __________ |
| A. | Platelets |
| B. | Leucocytes |
| C. | Erythrocytes |
| D. | Monocytes |
| Answer» D. Monocytes | |
| 438. |
Ionization energy decreases down the group. It is the energy required by an isolated gaseous atom to form an anion. |
| A. | True |
| B. | FalseView answer |
| Answer» C. | |
| 439. |
Radon is the sixth member of group 18 of the modern periodic table. Unlike other members of this group, Radon: |
| A. | is solid near room temperature |
| B. | is radioactive |
| C. | possess high chemical reactivity |
| D. | all of the mentionedView answer |
| Answer» C. possess high chemical reactivity | |
| 440. |
Elements in the same column of the periodic table have: |
| A. | Similar valence shell electron configuration |
| B. | Same value of highest principal quantum number |
| C. | Same number of nucleons |
| D. | All of the mentionedView answer |
| Answer» B. Same value of highest principal quantum number | |
| 441. |
The clogging of well screens and consequent reduction in pump efficiency is indicated by _____________ |
| A. | the high value of the well-loss |
| B. | the low value of the well-loss |
| C. | variable value of the well-loss |
| D. | both high and low value of the well-loss |
| Answer» B. the low value of the well-loss | |
| 442. |
An aquifer which is confined at its bottom but not at the top is called ___________ |
| A. | semi-confined aquifer |
| B. | confined aquifer |
| C. | unconfined aquifer |
| D. | artesian aquifer |
| Answer» D. artesian aquifer | |
| 443. |
An example of aquitard stratum in the ground profile is a layer of ___________ |
| A. | granite rock |
| B. | clay |
| C. | sandy clay |
| D. | sandstone |
| Answer» D. sandstone | |
| 444. |
The standard specific capacity of a well is the well-discharge per unit of drawdown. This value of discharge should be obtained at ________ |
| A. | any drawdown |
| B. | a particular drawdown of 3 m |
| C. | the first 1 m of drawdown |
| D. | the first 2 m of drawdown |
| Answer» D. the first 2 m of drawdown | |
| 445. |
The specific capacity of a confined well under equilibrium condition and within the working limits of drawdown ______________ |
| A. | is constant at all drawdowns |
| B. | decreases as the drawdown are increased |
| C. | increases as the drawdown are increased |
| D. | may increase or decrease |
| Answer» C. increases as the drawdown are increased | |
| 446. |
A perched aquifer is found within ____________ |
| A. | unconfined aquifer |
| B. | confined aquifer |
| C. | aquiclude |
| D. | both confined and unconfined aquifer |
| Answer» B. confined aquifer | |
| 447. |
Specific yield for an unconfined aquifer is ________________ |
| A. | greater than porosity |
| B. | less than porosity |
| C. | equal to porosity |
| D. | unrelated to porosity |
| Answer» C. equal to porosity | |
| 448. |
The units of specific capacity of a well are _____ |
| A. | m3/sec |
| B. | m2/sec |
| C. | m/sec |
| D. | no units |
| Answer» C. m/sec | |
| 449. |
Coefficient of storage (A) has the dimensions of _____ |
| A. | has the dimensions of _____a) L3 |
| B. | L |
| C. | L2 |
| D. | Dimensionless |
| Answer» E. | |
| 450. |
The discharge per unit drawdown at a well is known as ___________ |
| A. | specific yield |
| B. | specific retention |
| C. | specific capacity |
| D. | specific storage |
| Answer» D. specific storage | |