MCQOPTIONS
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MCQOPTIONS
This section includes 258 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Science knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
What is required to enable the PC to emulate a graphics terminal? |
| A. | Software |
| B. | A laser printer |
| C. | A color monitor |
| D. | A graphics board |
| Answer» B. A laser printer | |
| 152. |
Resolution in a CRT refers to: |
| A. | the speed at which the monitor can accept data from the computer |
| B. | the number of phosphor dots that react when hit by the electron beam |
| C. | the number of addressable elements on the tube |
| D. | the number of pixels in each square centimeter |
| Answer» D. the number of pixels in each square centimeter | |
| 153. |
Which CAD display configurability allows work without any host support? |
| A. | Highly intelligent |
| B. | Medium intelligence |
| C. | Low intelligence |
| D. | One with no secondary storage capacity. |
| Answer» B. Medium intelligence | |
| 154. |
The term used to represent the recycling of unused memory is: |
| A. | garbage collection |
| B. | diagnostic routine |
| C. | memory dump |
| D. | direct memory access |
| Answer» B. diagnostic routine | |
| 155. |
Microcomputer-based control sys¬tems |
| A. | will just keep their present capability |
| B. | will have more standard industrial application software available in the future. |
| C. | will tend to increase in cost. |
| D. | All of the above |
| Answer» C. will tend to increase in cost. | |
| 156. |
Compared to an open-loop system, a closed-loop control system is: |
| A. | more accurate |
| B. | more complex |
| C. | more stable |
| D. | All of the above |
| Answer» E. | |
| 157. |
The integrated circuit: |
| A. | often is called a "chip" |
| B. | led to the development of the transistor |
| C. | has revolutionized electronics |
| D. | (b) and (c) |
| Answer» E. | |
| 158. |
The processing, which normally consists of a small computer with one or more peripheral devices, connected via a high-speed line to the large control computer is known as |
| A. | On-line processing |
| B. | Remote-terminal processing |
| C. | Batch mode processing |
| D. | Intelligent terminal Processing |
| Answer» E. | |
| 159. |
If a sine wave has a frequency of 500 Hz, the period in seconds of the sine wave is: |
| A. | 5000 |
| B. | 0.003 |
| C. | 0.02 |
| D. | 0.002. |
| Answer» E. | |
| 160. |
Which industry is the leading user of robots? |
| A. | Chemical industry |
| B. | Automobile industry |
| C. | Electronic industry |
| D. | Shipping industry |
| Answer» C. Electronic industry | |
| 161. |
An encoder: |
| A. | is used to send telegraph signals |
| B. | converts an input to a binary number |
| C. | converts a binary number to a decimal number. |
| D. | can have only four keys |
| Answer» C. converts a binary number to a decimal number. | |
| 162. |
Trend analysis: |
| A. | is used only in financial planning |
| B. | can improve control system response |
| C. | requires a very expensive system to implement |
| D. | is a brand new concept |
| Answer» C. requires a very expensive system to implement | |
| 163. |
What is proportional control? |
| A. | It has a discrete output for each error value |
| B. | The controller output varies continuously over a range |
| C. | The gain is independent of offset error. |
| D. | All of the above |
| Answer» C. The gain is independent of offset error. | |
| 164. |
The physical arrangement of equipment in a network is called: |
| A. | topology |
| B. | pairing |
| C. | queuing |
| D. | logic |
| Answer» B. pairing | |
| 165. |
What prevents a robotic instrument from running into other objects? |
| A. | negative image |
| B. | functional manipulators |
| C. | memory |
| D. | sensory devices |
| Answer» E. | |
| 166. |
The three key elements for a graphics workstation include the host processor, display controller, and: |
| A. | mouse |
| B. | keyboard |
| C. | CRT |
| D. | digitizer |
| Answer» D. digitizer | |
| 167. |
A technique for displaying applications where complex 3-D geometric are required for the exteror shall of a product is called: |
| A. | solid modeling |
| B. | 2-D modeling |
| C. | 3-D modeling |
| D. | surface modeling |
| Answer» E. | |
| 168. |
Using a microcomputer as a controller allows: |
| A. | faster cycle time |
| B. | simpler mechanical hardware |
| C. | more self diagnostics of the machine operation |
| D. | All of the above |
| Answer» E. | |
| 169. |
If the transient response is under damped: |
| A. | steady-state will be reached faster than if the system is overdamped |
| B. | the value of the output will exceed the value of the input at times during the transient period |
| C. | the present overshoot is zero |
| D. | both a and b |
| Answer» E. | |
| 170. |
Robots can increase productivity because: |
| A. | they do not take a vacation |
| B. | they do not get tired |
| C. | production quality is uniform |
| D. | All of the above |
| Answer» E. | |
| 171. |
In raster-scan colour monitors, colour can be intensified by: |
| A. | grouping the phosphor dots in a circular pattern |
| B. | having each electron gun controlled by a composite signal |
| C. | using an in-line gun arrangement with a solid metal mesh |
| D. | having each electron gun controlled by separate signal |
| Answer» E. | |
| 172. |
The name given to the test that determines whether a machine can think is the: |
| A. | Gaussian test |
| B. | McCarthy test |
| C. | Turing test |
| D. | Boolean test |
| Answer» D. Boolean test | |
| 173. |
For a type 1 system, the steady-state: |
| A. | error for a step input is always zero |
| B. | error for a velocity input is always zero |
| C. | input for acceleration input is always non-zero |
| D. | (a) and (c) |
| Answer» E. | |
| 174. |
The reliability life cycle of a product: |
| A. | has three distinct rates of failure |
| B. | cannot be predicted |
| C. | All of the above |
| D. | stays constant with environmental conditions |
| Answer» B. cannot be predicted | |
| 175. |
The SKETCHPAD system |
| A. | consisted of an cathode-ray oscilloscope driven by a Lincoln Tx2 computer where by graphical information was displayed on the screen. |
| B. | is used for interactive Graphics |
| C. | is expensive because it is sophisticated and make demands on the power and resources of the computer. |
| D. | All of the above |
| Answer» E. | |
| 176. |
A drum timer is a good example of: |
| A. | an output actuator |
| B. | an input sensor |
| C. | a position sensor |
| D. | a sequence controller |
| Answer» E. | |
| 177. |
Ergonomics refers to: |
| A. | the human aspect of the environment around the workstation as well as the workstation itself |
| B. | the cost relationship of the workstation versus productivity |
| C. | the level of involvement the operator has with the workstation |
| D. | the technology involved in the workstation itself |
| Answer» B. the cost relationship of the workstation versus productivity | |
| 178. |
Direct Numerical Control means: |
| A. | using several computers to control one large machine |
| B. | using one computer to control several machines |
| C. | complete elimination of a need for a human operator. |
| D. | eliminating computers from the manufacturing process |
| Answer» C. complete elimination of a need for a human operator. | |
| 179. |
Which of the following editor(s) is(are) incorporated into general CAD system? |
| A. | Point Editor |
| B. | Line Editor |
| C. | Macro and symbol Editor |
| D. | All of the above |
| Answer» E. | |
| 180. |
The main function(s) of computer in CAD is/are |
| A. | To serve as an extension to the memory of the designer |
| B. | To enhance the analytical and logical power of the designer |
| C. | To relieve the designer from routine repetitious tasks. |
| D. | All of the above |
| Answer» E. | |
| 181. |
Pressure sensors: |
| A. | use the piezoresistive effect in strain gauge sensors |
| B. | use an aneroid chamber with a variable resistance output |
| C. | use capacitive variations to sense pressure |
| D. | All of the above |
| Answer» E. | |
| 182. |
The coordinate system used to describe a workpiece: |
| A. | is always two-dimensional |
| B. | changes from part to part |
| C. | is defined with respect to a point on the machine |
| D. | All of the above |
| Answer» D. All of the above | |
| 183. |
An up/down counter used in a TI510PC has three inputs. Which of the following is not one of them? |
| A. | Count up |
| B. | Count out |
| C. | Reset. |
| D. | Count down |
| Answer» C. Reset. | |
| 184. |
One advantage of a PC in industrial control is that it: |
| A. | has a reliable long life compared to relay logic |
| B. | is very difficult for the inexperienced programmer to understand |
| C. | is unreliable because there are no moving parts |
| D. | All of the above |
| Answer» B. is very difficult for the inexperienced programmer to understand | |
| 185. |
Which of the following is a machine language instruction? |
| A. | ADD 5 |
| B. | 10001101 |
| C. | GOTO XOUT |
| D. | All of the above |
| Answer» C. GOTO XOUT | |
| 186. |
Timing using a TM990 micro¬computer: |
| A. | require an external timer added by the user |
| B. | is available on the standard CPU board |
| C. | can be handled in software |
| D. | both (b) and (c) |
| Answer» E. | |
| 187. |
What key hardware item ties a CAD/ CAM system together? |
| A. | Mouse |
| B. | Graphics workstation |
| C. | Digitizer |
| D. | Plotter |
| Answer» C. Digitizer | |
| 188. |
The output of a thermocouple is: |
| A. | a capacitance |
| B. | a resistance |
| C. | a current |
| D. | a voltage |
| Answer» E. | |
| 189. |
CAD/CAM is the inter-relationship between: |
| A. | manufacturing and marketing |
| B. | marketing and design |
| C. | engineering and marketing |
| D. | engineering and manufacturing |
| Answer» E. | |
| 190. |
One of the major benefits of using CAD in tool design is that: |
| A. | product design represents approximately one-half the engineering costs |
| B. | tool motions can be checked to see if there is interference between the tool and the object |
| C. | there is better coordination in the materials-handling area |
| D. | it simplifies the trial-and-error method |
| Answer» C. there is better coordination in the materials-handling area | |
| 191. |
There are several procedures you can implement to provide maximum security. The most important of these is: |
| A. | do not leave training manuals unsecured |
| B. | run regular simulated tests using TARP (testing of Applications Recovery Planes) |
| C. | Verify the reputation of the people installing your system |
| D. | do not allow unbonded service people to work on your equipment |
| Answer» C. Verify the reputation of the people installing your system | |
| 192. |
A Hall effect switch is usually used to: |
| A. | , measure voltage |
| B. | measure temperature |
| C. | sense a vacuum |
| D. | sense the presence of a magnetic object. |
| Answer» E. | |
| 193. |
The user communicates directly with the computer through its peripheral devices is known as |
| A. | On-line processing |
| B. | Remote-terminal processing |
| C. | Batch mode processing |
| D. | Intelligent terminal Processing |
| Answer» B. Remote-terminal processing | |
| 194. |
The "snap" command feature in both AutoCAD and VersaCAD ensure that: |
| A. | template lines can be removed |
| B. | objects are entered at specific intervals. |
| C. | identified data are automatically segmented |
| D. | definable center markers are entered. |
| Answer» C. identified data are automatically segmented | |
| 195. |
An intelligent robot can: |
| A. | make decisions |
| B. | handle only small payloads |
| C. | walk |
| D. | speak |
| Answer» B. handle only small payloads | |
| 196. |
The rate at which scanning is repeated is called the: |
| A. | stroke rate |
| B. | refresh rate |
| C. | bandwidth |
| D. | resolution |
| Answer» C. bandwidth | |
| 197. |
An operating system: |
| A. | can help reduce software development time |
| B. | provides ability for other programmers to understand the software structure |
| C. | is useless in most control applications |
| D. | All of the above |
| Answer» B. provides ability for other programmers to understand the software structure | |
| 198. |
Productivity is defined as: |
| A. | number of items manufactured per day |
| B. | output per man-hour of labour |
| C. | cost per day |
| D. | cost per unit |
| Answer» C. cost per day | |
| 199. |
When of the following produces the best quality graphics reproduction? |
| A. | Dot metric printers |
| B. | Ink jet printers |
| C. | Laser printers |
| D. | Plotters |
| Answer» E. | |
| 200. |
Today, programmable controllers: |
| A. | are more powerful then the first controllers on the market |
| B. | are relatively low cost compared with the original digital equipment available for industrial control |
| C. | can be cost effective even when replacing just a few relays |
| D. | All of the above |
| Answer» E. | |