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.
| 401. |
What is the strain on a hook of a hanger, when its length expands from 5cm to 6 cm due to a hanging load? |
| A. | 0.2 |
| B. | 0.5 |
| C. | 1.2 |
| D. | 0.3334 |
| Answer» B. 0.5 | |
| 402. |
What is the unit of strain? |
| A. | Meter |
| B. | Newton/Meter |
| C. | Newton/Meter2 |
| D. | No unit |
| Answer» E. | |
| 403. |
Stress on a body occurs only when compressive force act on it. |
| A. | True |
| B. | False |
| Answer» C. | |
| 404. |
Pressure and stress are same as both are defined as force per unit area. |
| A. | True |
| B. | False |
| Answer» C. | |
| 405. |
What is the ratio of stress to strain called? |
| A. | Youngs Modulus |
| B. | Bulks Modulus |
| C. | Modulus of elasticity |
| D. | Modulus of rigidity |
| Answer» B. Bulks Modulus | |
| 406. |
What is the strain on an object, when a force of 3 Newton is applied on it and it expands the length of the object from 4cm to 6 cm? |
| A. | 2 |
| B. | 0.5 |
| C. | 1 |
| D. | 8 |
| Answer» C. 1 | |
| 407. |
What is the type of preload called when a bearing experiences a stress due to negative clearance? |
| A. | Fastener preload |
| B. | Bearing preload |
| C. | Testing preload |
| D. | Stress preload |
| Answer» C. Testing preload | |
| 408. |
The word “cross-section” is a verb. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 409. |
The word “ultrasonic” is a noun. |
| A. | True |
| B. | False |
| Answer» C. | |
| 410. |
Fill in the blank :I could not _____ him to come to the party. |
| A. | convince |
| B. | persuade |
| C. | push |
| D. | force |
| Answer» C. push | |
| 411. |
Which of these words is correct? |
| A. | Longevity |
| B. | Longivity |
| C. | Longevety |
| D. | Longeviety |
| Answer» B. Longivity | |
| 412. |
What will be the output of the following Java code snippet? |
| A. | [A, B, C] |
| B. | [D, B, C] |
| C. | [A, B, C, D] |
| D. | [D, A, B, C] View Answer |
| Answer» E. | |
| 413. |
Which of these methods can be used to delete the last element in a LinkedList object? |
| A. | remove() |
| B. | delete() |
| C. | removeLast() |
| D. | deleteLast() |
| Answer» D. deleteLast() | |
| 414. |
Which of these method of HashSet class is used to add elements to its object? |
| A. | add() |
| B. | Add() |
| C. | addFirst() |
| D. | insert() |
| Answer» B. Add() | |
| 415. |
Which of these method is used to add an element to the start of a LinkedList object? |
| A. | add() |
| B. | first() |
| C. | AddFirst() |
| D. | addFirst() |
| Answer» E. | |
| 416. |
Which of these standard collection classes implements a linked list data structure? |
| A. | AbstractList |
| B. | LinkedList |
| C. | HashSet |
| D. | AbstractSet |
| Answer» C. HashSet | |
| 417. |
Which of the following industries uses Tafel extrapolation or linear polarization to measure low corrosion rates? |
| A. | Nuclear industries |
| B. | Pharmaceutical industries |
| C. | Food processing industries |
| D. | Nuclear, pharmaceutical and food processing industries |
| Answer» E. | |
| 418. |
What is the formula to determine the slope of linear polarization curve? |
| A. | ΔE/Δi =[2.3*icorr*(βa+βb)]/[βa*βb] b) ΔE/Δi=[βa+βb]/[2.3*icorr*(βa*βb)] c) ΔE/Δi=[βa*βb]/[2.3*icorr*(βa+βb)] d) ΔE/Δi=[2.3*icorr*(βa*β |
| B. | ]/[βa*βb] b) ΔE/Δi=[βa+βb]/[2.3*icorr*(βa*βb)] |
| C. | ΔE/Δi=[βa*βb]/[2.3*icorr*(βa+βb)] |
| D. | ΔE/Δi=[2.3*icorr*(βa*βb)]/[βa+βb] |
| Answer» D. ΔE/Δi=[2.3*icorr*(βa*βb)]/[βa+βb] | |
| 419. |
What is the range of current density around corrosion potential that will observe that the applied current density is a linear function of the electrode potential? |
| A. | 10 mV more noble or active around corrosion potential |
| B. | 5 mV more noble or active around corrosion potential |
| C. | 10 V more noble or active around corrosion potential |
| D. | 5 V more noble or active around corrosion potential |
| Answer» B. 5 mV more noble or active around corrosion potential | |
| 420. |
Which of the following is/are the limitations of Tafel extrapolation? |
| A. | For reasonable accuracy, the Tafel region must be extended |
| B. | It can be applied to systems containing one reduction process only |
| C. | Much interference from concentration polarization |
| D. | It can be applied to systems containing one reduction process, for reasonable accuracy the Tafel region must be extended and there will be much interference from concentration polarization |
| Answer» E. | |
| 421. |
Which of the following is/are the advantages of Tafel extrapolation? |
| A. | It can measure extremely low corrosion rates |
| B. | It can be used for continuously monitoring the corrosion rate of a system |
| C. | It can be used for continuously monitoring the corrosion rate of a system with high accuracy and measures extremely low corrosion rates |
| D. | It can be performed rapidly with high accuracy |
| Answer» D. It can be performed rapidly with high accuracy | |
| 422. |
The applied current cathodic polarization curve of a corroding metal is non-linear at low currents, but it becomes linear at higher currents on a semilogarithmic plot. |
| A. | False |
| B. | True |
| Answer» C. | |
| 423. |
Which of the following is depicted in the given figure? |
| A. | Electric circuit for cathodic polarization measurements |
| B. | Electric circuit for anodic polarization measurements |
| C. | Electric circuit for cathodic protection |
| D. | Electric circuit for sacrificial anode system |
| Answer» B. Electric circuit for anodic polarization measurements | |
| 424. |
Which of the following electrochemical methods is/are used to determine the corrosion rate? |
| A. | Tafel extrapolation |
| B. | Linear polarization |
| C. | Tafel extrapolation and linear polarization |
| D. | Neither Tafel extrapolation nor linear polarization |
| Answer» D. Neither Tafel extrapolation nor linear polarization | |
| 425. |
Stainless steels containing small quantities of platinum passivates more readily in the presence of oxygen, ferric salts, and other oxidizing agents. |
| A. | False |
| B. | True |
| Answer» C. | |
| 426. |
Which of the following noble metals will improve the corrosion resistance of titanium and chromium on galvanic coupling? |
| A. | Platinum |
| B. | Palladium |
| C. | Rhodium |
| D. | Platinum, palladium, and rhodium |
| Answer» E. | |
| 427. |
Which of the following is described in the given figure? |
| A. | Protection range for anodic protection for an active metal |
| B. | Protection range for anodic protection for an active-passive transition metal |
| C. | Protection range for cathodic protection for an active-passive transition metal |
| D. | Protection range for cathodic protection for an active metal |
| Answer» C. Protection range for cathodic protection for an active-passive transition metal | |
| 428. |
The optimum potential for anodic protection is in the mid of passive region since it permits slight variations. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 429. |
What is meant by anodic protection? |
| A. | Accompanying the sacrificial metal with metallic structure |
| B. | Prevention of corrosion by impressed cathodic current by supply electrons |
| C. | Prevention of corrosion by the impressed anodic current is used to transform from active to a passive state |
| D. | Additions of oxidizers and oxidizing agents for the formation of an oxide layer |
| Answer» D. Additions of oxidizers and oxidizing agents for the formation of an oxide layer | |
| 430. |
How many objects are created for 24 texts written in the graph? |
| A. | 22 |
| B. | 24 |
| C. | 21 |
| D. | 2 |
| Answer» C. 21 | |
| 431. |
Using the set command for axes can be replaced by setting the ___ to a variable. |
| A. | gca |
| B. | gcf |
| C. | gco |
| D. | not possible |
| Answer» B. gcf | |
| 432. |
A semi-log graph cannot be plotted in MATLAB. |
| A. | True |
| B. | False |
| Answer» C. | |
| 433. |
What is the nature of the 2nd vector input in the following command? |
| A. | a m*n matrix where m=length( vector_1 ) |
| B. | a m*n matrix where n=length( vector_1 ) |
| C. | a m*n matrix where m>length( vector_1 ) |
| D. | a m*n matrix where n>length( vector_1 )View Answer |
| Answer» B. a m*n matrix where n=length( vector_1 ) | |
| 434. |
What does the set command do? |
| A. | The operation of the fill command |
| B. | The operation of changing intervals of axes |
| C. | The operation of the plot command |
| D. | The operation of the figure command |
| Answer» C. The operation of the plot command | |
| 435. |
Which of the following is correct regarding the oilfield scale Anhydrite? |
| A. | Oil additives |
| B. | Usually formed as an evaporite |
| C. | One form of the barium sulfate mineral |
| D. | A scale formed from the supersaturated solution |
| Answer» C. One form of the barium sulfate mineral | |
| 436. |
Which of the following is correct regarding the oilfield scale Barite? |
| A. | One form of the barium sulfate mineral |
| B. | Oil additives |
| C. | Usually formed as an evaporite |
| D. | A scale formed from a supersaturated solution |
| Answer» B. Oil additives | |
| 437. |
Which of the following is correct regarding the oilfield scale Calcite? |
| A. | One of the many forms of the barium sulfate mineral |
| B. | Oil additives |
| C. | A scale formed from a supersaturated solution |
| D. | Usually formed as an evaporite |
| Answer» D. Usually formed as an evaporite | |
| 438. |
One of the primary factors because of which scaling takes is the mingling of compatibility of the two different fluids. |
| A. | True |
| B. | False |
| Answer» C. | |
| 439. |
The direct cause of scaling is sometimes pressured drops. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 440. |
The problem where process concurrency becomes an issue is called as ___________ |
| A. | Philosophers problem |
| B. | Bakery problem |
| C. | Bankers problem |
| D. | Reader-writer problem |
| Answer» E. | |
| 441. |
The algorithm followed in most of the systems to perform out of order execution is __________ |
| A. | Tomasulo algorithm |
| B. | Score carding |
| C. | Reader-writer algorithm |
| D. | None of the mentioned |
| Answer» B. Score carding | |
| 442. |
____________ method is used in centralized systems to perform out of order execution. |
| A. | Scorecard |
| B. | Score boarding |
| C. | Optimizing |
| D. | Redundancy |
| Answer» C. Optimizing | |
| 443. |
The time lost due to the branch instruction is often referred to as ____________ |
| A. | Latency |
| B. | Delay |
| C. | Branch penalty |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 444. |
The stalling of the processor due to the unavailability of the instructions is called as ___________ |
| A. | Control hazard |
| B. | structural hazard |
| C. | Input hazard |
| D. | None of the mentioned |
| Answer» B. structural hazard | |
| 445. |
The periods of time when the unit is idle is called as ________ |
| A. | Stalls |
| B. | Bubbles |
| C. | Hazards |
| D. | Both Stalls and Bubbles |
| Answer» E. | |
| 446. |
Any condition that causes a processor to stall is called as _________ |
| A. | Hazard |
| B. | Page fault |
| C. | System error |
| D. | None of the mentioned |
| Answer» B. Page fault | |
| 447. |
Multimeric forms of a plasmid may give rise to __________ |
| A. | Low copy number |
| B. | High copy number |
| C. | Plasmid instability |
| D. | Plasmid loss |
| Answer» D. Plasmid loss | |
| 448. |
The par region from a plasmid such as Psc101 can be cloned into Pbr322. What is the function of this region? |
| A. | Maintains stability |
| B. | Maintains high copy number |
| C. | Maintains cloning efficiency |
| D. | Aids in replication |
| Answer» B. Maintains high copy number | |
| 449. |
Linking two plasmids by binding to their origin sites and thereby preventing replication is known as __________ |
| A. | Transduction |
| B. | Handcuffing |
| C. | Conjugation |
| D. | Transfection |
| Answer» C. Conjugation | |
| 450. |
In the broad host-range plasmid Psc101, close to the origin, there is a gene repA. What is the importance of this gene? |
| A. | In deciding the host |
| B. | In transformation |
| C. | In replication |
| D. | In the survival of host |
| Answer» D. In the survival of host | |