MCQOPTIONS
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MCQOPTIONS
This section includes 180 Mcqs, each offering curated multiple-choice questions to sharpen your Materials Mechanics knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
Long axially loaded columns tends to deflect about ___________ |
| A. | Moment of inertia |
| B. | Effective length |
| C. | Core |
| D. | Safe loading |
| Answer» B. Effective length | |
| 152. |
What is the rankines constant for cast iron? |
| A. | 1/2000 |
| B. | 1/2400 |
| C. | 1/ 1600 |
| D. | 1/ 1800 |
| Answer» D. 1/ 1800 | |
| 153. |
For a given material length, end conditions and equal area the shape of the column which is most efficient as per Euler’s is _________ |
| A. | Square |
| B. | Circular |
| C. | I section |
| D. | Tubular |
| Answer» E. | |
| 154. |
The slenderness ratio is ________ to critical stress. |
| A. | Directly proportional |
| B. | Inversely proportional |
| C. | Equal |
| D. | Transverse |
| Answer» C. Equal | |
| 155. |
The value of _________ is relatively high for short columns. |
| A. | Safe load |
| B. | Factored load |
| C. | Working load |
| D. | Buckling load |
| Answer» E. | |
| 156. |
At ___________ load, the column is said to have developed an elastic instability. |
| A. | Safe |
| B. | Working |
| C. | Factored |
| D. | Crippling |
| Answer» E. | |
| 157. |
The slenderness ratio is the ratio of effective length to least ______________ |
| A. | Ultimate load |
| B. | Actual length |
| C. | Radius of gyration |
| D. | Factor of safety |
| Answer» D. Factor of safety | |
| 158. |
The __________ is the distance between Centres to centre of effective lateral ends. |
| A. | Mean length |
| B. | Stripped length |
| C. | True length |
| D. | Actual length |
| Answer» E. | |
| 159. |
Radius of gyration is denoted by __________ |
| A. | k |
| B. | g |
| C. | y |
| D. | s |
| Answer» B. g | |
| 160. |
Factor of safety is a ratio of crippling load to __________ load. |
| A. | Critical load |
| B. | Buckling load |
| C. | Safe load |
| D. | Ultimate load |
| Answer» D. Ultimate load | |
| 161. |
For ___________ columns, the slenderness ratio is more than 32 and less than 120. |
| A. | Long |
| B. | Short |
| C. | Average |
| D. | Medium |
| Answer» E. | |
| 162. |
In short columns, the slenderness ratio is less than __________ |
| A. | 32 |
| B. | 64 |
| C. | 56 |
| D. | 28 |
| Answer» B. 64 | |
| 163. |
Long columns fail due to ____________ |
| A. | Direct stress |
| B. | Buckling stress |
| C. | Lateral stress |
| D. | Tensile stress |
| Answer» C. Lateral stress | |
| 164. |
The hinged end is also known as ___________ |
| A. | Fixed end |
| B. | Pinned end |
| C. | Rigid end |
| D. | Free end |
| Answer» C. Rigid end | |
| 165. |
_____________ of column mainly depends upon end conditions. |
| A. | Radius of gyration |
| B. | Slenderness ratio |
| C. | Factored load |
| D. | Effective length |
| Answer» E. | |
| 166. |
Which of the following process is also known as Ion exchange process? |
| A. | Lime soda process |
| B. | Base exchange process |
| C. | Demineralization process |
| D. | Cation exchange process |
| Answer» B. Base exchange process | |
| 167. |
The dosage of ozone is about ________ ppm residual ozone. |
| A. | 2 to 3 ppm |
| B. | 2 to 4 ppm |
| C. | 1 to 5 ppm |
| D. | Zero |
| Answer» B. 2 to 4 ppm | |
| 168. |
What is the uniformity coefficient of sand used in the rapid sand filter? |
| A. | 1.5 |
| B. | 1.35 |
| C. | 1.75 |
| D. | 1.6 |
| Answer» D. 1.6 | |
| 169. |
Which of the following is a control measure of removal of colour, taste and order? |
| A. | Ozone treatment |
| B. | Silver treatment |
| C. | Copper sulphate treatment |
| D. | Use of chloramines |
| Answer» D. Use of chloramines | |
| 170. |
Aeration is effective in removing of _________ odours. |
| A. | 60 % |
| B. | 75 % |
| C. | 30 % |
| D. | 40 |
| Answer» C. 30 % | |
| 171. |
The efficiency of slow sand filter is about ___________ |
| A. | 99 % |
| B. | 95 % |
| C. | 85 % |
| D. | 90 % |
| Answer» B. 95 % | |
| 172. |
Cleaning period of slow sand filter is taken as __________ |
| A. | 1 to 3 weeks |
| B. | 1 to 3 days |
| C. | 1 to 3 months |
| D. | 1 to 2 hours |
| Answer» D. 1 to 2 hours | |
| 173. |
The sand used for filtration should not lose weight more than ________ when placed in Hcl for 24 hours. |
| A. | 5 % |
| B. | 10 % |
| C. | 15 % |
| D. | 20 % |
| Answer» B. 10 % | |
| 174. |
The rate of filtration in slow sand filter is ___________ |
| A. | 100 to 150 lit/hr/m² |
| B. | 150 to 200 lit/hr/m² |
| C. | 250 to 350 lit/hr/m² |
| D. | 100 to 200 lit/hr/m² |
| Answer» E. | |
| 175. |
The organic impurities in the water from a layer on the top of a filtering media are called _______ |
| A. | Filter layer |
| B. | Permeable layer |
| C. | Impermeable layer |
| D. | Dirty skin |
| Answer» E. | |
| 176. |
The process of removing chlorine from water is known as ____________ |
| A. | De chlorination |
| B. | Re chlorination |
| C. | Post chlorination |
| D. | Pre chlorination |
| Answer» B. Re chlorination | |
| 177. |
A built up rolled steel section carrying compressive force is called ___________ |
| A. | Post |
| B. | Pillar |
| C. | Strut |
| D. | Stanchion |
| Answer» E. | |
| 178. |
The inclined member carrying compressive loads is __________ |
| A. | Post |
| B. | Stanchion |
| C. | Strut |
| D. | Column |
| Answer» D. Column | |
| 179. |
__________ is a vertical member subjected to direct compressive force. |
| A. | Strut |
| B. | Beam |
| C. | Column |
| D. | Post |
| Answer» D. Post | |
| 180. |
Column is a tension member. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» C. May be True or False | |