MCQOPTIONS
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MCQOPTIONS
This section includes 1232 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
Inter atomic distance is more the dislocation line in positive edge dislocation |
| A. | above |
| B. | below |
| C. | right side of |
| D. | left side of |
| Answer» C. right side of | |
| 202. |
No. of atoms in hexagon close packed structure are ….. |
| A. | 1 |
| B. | 2 |
| C. | 4 |
| D. | 6 |
| Answer» E. | |
| 203. |
is the property of a material by which it can be drawin into wires |
| A. | ductility |
| B. | plasticity |
| C. | malleability |
| D. | toughness |
| Answer» B. plasticity | |
| 204. |
shows the good behevoiur under compression type of loading |
| A. | ductile material |
| B. | brittle material |
| C. | any one ofabove |
| D. | none of theabove |
| Answer» C. any one ofabove | |
| 205. |
is the advantage of sacrificial anodic protection |
| A. | no external power is required |
| B. | it is easy to install |
| C. | installation can be inexpensive if installed at the time of constuction |
| D. | all of the above |
| Answer» E. | |
| 206. |
Frank-Reed source is associated with- |
| A. | vacancy and interstitial defect |
| B. | reductiion in dislocations |
| C. | multiplicati on of dislocations |
| D. | none of the above |
| Answer» D. none of the above | |
| 207. |
the notch provided on impact test specimenis of shape |
| A. | i |
| B. | t |
| C. | v |
| D. | l |
| Answer» D. l | |
| 208. |
Crystal structure is arrangement ofin different patterns |
| A. | electrons |
| B. | protons |
| C. | atoms |
| D. | crystals |
| Answer» D. crystals | |
| 209. |
in test , a specimen is in the formof sheet |
| A. | tensile |
| B. | compression |
| C. | erichsen cupping |
| D. | torsion |
| Answer» D. torsion | |
| 210. |
in body centred crystal structure, there is number of face atoms |
| A. | 1 |
| B. | 4 |
| C. | 8 |
| Answer» E. | |
| 211. |
erichsen cupping test machine consists of parts |
| A. | punch anddie |
| B. | micrometerdial |
| C. | mirror for cup onservation |
| D. | all of the above |
| Answer» E. | |
| 212. |
the main purpose of erichsen cupping test isto measure |
| A. | hardness of material |
| B. | shear strength of material |
| C. | ductility of material |
| D. | all of the above |
| Answer» C. ductility of material | |
| 213. |
Coordination Number of Body-Centered Cubic structure is….. |
| A. | 6 |
| B. | 8 |
| C. | 10 |
| D. | 12 |
| Answer» C. 10 | |
| 214. |
...........is commonly used for visual inspectionmethod |
| A. | boroscope |
| B. | optical microscope |
| C. | endoscope |
| D. | telescope |
| Answer» C. endoscope | |
| 215. |
is the ratio of shear stress toshear strain |
| A. | modulus of rigidity |
| B. | modulus of rupture |
| C. | modulus of elasticity |
| D. | modulus of toughness |
| Answer» B. modulus of rupture | |
| 216. |
...........test does not damage the workpiecewhile testing |
| A. | magnaflu |
| B. | hardness |
| C. | bend |
| D. | torsion |
| Answer» B. hardness | |
| 217. |
No.of atoms in FCCstructure are ….. |
| A. | 2 |
| B. | 1 |
| C. | 4 |
| D. | 5 |
| Answer» D. 5 | |
| 218. |
to calclulate proof stress, method isused |
| A. | offset |
| B. | bending |
| C. | shear |
| D. | all of the above |
| Answer» B. bending | |
| 219. |
is the application od sacrificial anodic protection |
| A. | buried pipelines |
| B. | underground cables |
| C. | marine structures |
| D. | all of the above |
| Answer» E. | |
| 220. |
plays an important role in crystal growth. |
| A. | edge dislocation |
| B. | screw dislocations |
| C. | twinning |
| D. | none of the above |
| Answer» C. twinning | |
| 221. |
crystal structure is arrangement ofin differeny patterns |
| A. | electrons |
| B. | protons |
| C. | atoms |
| D. | crystals |
| Answer» D. crystals | |
| 222. |
for calculating a proof stress, a parallel line isdrawn at |
| A. | 0.1% of yield elongation |
| B. | 0.2% of total elongation |
| C. | 0.2% of yield elongation |
| D. | 0.1% of total elongation |
| Answer» C. 0.2% of yield elongation | |
| 223. |
cast iron, glass, concrete, bricks etc. shows type of fracture |
| A. | cleavege |
| B. | cupcone |
| C. | star |
| D. | irregular fibrous |
| Answer» B. cupcone | |
| 224. |
in charpy impact test, the pendulum is released from an angle of degree |
| A. | 120 |
| B. | 130 |
| C. | 140 |
| D. | 85 |
| Answer» D. 85 | |
| 225. |
In hot working force required isthan cold working |
| A. | greater |
| B. | less |
| C. | equal |
| D. | can’t say |
| Answer» C. equal | |
| 226. |
if yield trength of metal plate is σ under load P then the width of plate is . Take 't' as thickness of plate |
| A. | p/σt |
| B. | σ/pt |
| C. | σt/p |
| D. | pt/σ |
| Answer» B. σ/pt | |
| 227. |
a concrete specimen of square cross section is subjected to a force of 100 kN. A side of square is 75 mm. if strain in concrete block is1.5 x 10-3, the value of youngs modulus forconcrete is |
| A. | 11.85n/mm2 |
| B. | 11.85kn/mm2 |
| C. | 11.85 n/m2 |
| D. | 11.85 kn/m2 |
| Answer» C. 11.85 n/m2 | |
| 228. |
is the stress at which material shows a specified amount of plastic deformation |
| A. | yirld pointstress |
| B. | proportionallimit |
| C. | proof stress |
| D. | ultimate tensile stress |
| Answer» D. ultimate tensile stress | |
| 229. |
if total amount of energy absorbed by a steel specimen is 5 N-m for a volume of 10 x 10-3 mm3, the modulus of toughness is N/mm2 |
| A. | 5 x 10-4 |
| B. | 0.5 |
| C. | 2 x 103 |
| D. | 2 |
| Answer» C. 2 x 103 | |
| 230. |
is the limitation of anodic protection to prevent corrosion |
| A. | applicable only to those metals and alloys which exibit passivity |
| B. | some corrosion take place at a slow rates |
| C. | both a and b |
| D. | none of the above |
| Answer» D. none of the above | |
| 231. |
Negative screw dislocation is represented by |
| A. | ┴ |
| B. | 0 |
| C. | ┬ |
| Answer» E. | |
| 232. |
is the minimum value of stress inplastic region |
| A. | uts |
| B. | proof stress |
| C. | yield stress |
| D. | breaking stress |
| Answer» E. | |
| 233. |
APF (Atomic Packing Factor) of Body- Centered Cubic structure is….. |
| A. | 0.74 |
| B. | 0.52 |
| C. | 0.68 |
| D. | 0.8 |
| Answer» D. 0.8 | |
| 234. |
during design and fabrication of component, type of joints should be used |
| A. | welded |
| B. | bolted |
| C. | riveted |
| D. | all of the above |
| Answer» B. bolted | |
| 235. |
Carbon diffuses in Fe, this is type ofimpurity |
| A. | substitution al |
| B. | interstitial |
| C. | both a & b |
| D. | none of the above |
| Answer» C. both a & b | |
| 236. |
are not used under tensile typeloading |
| A. | ductile material |
| B. | brittle material |
| C. | any one ofabove |
| D. | none of theabove |
| Answer» C. any one ofabove | |
| 237. |
Grain boundaries decides of dislocations that can move |
| A. | lenghts |
| B. | magnitude |
| C. | direction |
| D. | none of the above |
| Answer» B. magnitude | |
| 238. |
in dissolved oxygen content of electrolyte has effect on corrosion reaction |
| A. | it forces the cathodic reaction to the right i.e. producing more oh- ions |
| B. | it removes more electrons and therefore accelarate the corrosion at the anode |
| C. | both are true sentenses |
| D. | none of the above is right |
| Answer» D. none of the above is right | |
| 239. |
Surface defects are the dimensional regions in a crystal. |
| A. | 3 |
| B. | 2 |
| C. | 4 |
| D. | 1 |
| Answer» C. 4 | |
| 240. |
In metals the plastic deformation generally takes place by the process of ---------. |
| A. | twinning |
| B. | slipping |
| C. | atomic spacin g |
| D. | dislocations |
| Answer» C. atomic spacin g | |
| 241. |
H2O + (1/2) O2 + 2e-1 --> 2OH-(Reduction) is reaction taking plcae at --- |
| A. | cathode |
| B. | anode |
| C. | both a and b |
| D. | none of the above |
| Answer» B. anode | |
| 242. |
The horizontal cracks sre detected inmagnaflux test by |
| A. | circular magnetizatio n |
| B. | longitudinal magnetizatio n |
| C. | demagnetization |
| D. | all of theabove |
| Answer» B. longitudinal magnetizatio n | |
| 243. |
during design and fabriaction of the component, a good design should have properties |
| A. | no crevices between adjacent areas |
| B. | free drainage and easy washings |
| C. | no chance for differential aeration corrosion |
| D. | all of the above |
| Answer» E. | |
| 244. |
is a system of notations of planes within a crystal of space lattice |
| A. | space lattice |
| B. | burger vector |
| C. | miller indices |
| D. | none of the above |
| Answer» D. none of the above | |
| 245. |
coatings are very useful for protecting undergraound tanks and pipes from corrosion |
| A. | bituminous |
| B. | paints |
| C. | zinc |
| D. | cadmium |
| Answer» B. paints | |
| 246. |
is a twisting action which results in shear stresses andstrains |
| A. | bending |
| B. | torsion |
| C. | tension |
| D. | compression |
| Answer» C. tension | |
| 247. |
is the limitation of impressed current method of cathodic protection |
| A. | it can cause cathodic interference problems |
| B. | require peroidic maintenance |
| C. | require external power, resulting in monthly power costs |
| D. | all of the above |
| Answer» E. | |
| 248. |
Forces required in cold working isthan hot working |
| A. | greater |
| B. | less |
| C. | equal |
| D. | can’t say |
| Answer» B. less | |
| 249. |
Dimension and accuracy in the products maybe checked by |
| A. | dye penetrant |
| B. | magnaflux |
| C. | radiography |
| D. | eddy current |
| Answer» E. | |
| 250. |
lattice vibration affects the properties of material |
| A. | electrical |
| B. | magnetic |
| C. | thermal |
| D. | all of the above |
| Answer» E. | |