MCQOPTIONS
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MCQOPTIONS
This section includes 2374 Mcqs, each offering curated multiple-choice questions to sharpen your Embedded Systems knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
What is the maximum expansion or contraction allowed for the joint filler material with an initial gap of about 30 mm? |
| A. | 10 mm |
| B. | 5 mm |
| C. | 20 mm |
| D. | 30 mm |
| Answer» B. 5 mm | |
| 202. |
The expansion joints in floors and walls should normally be provided at a spacing of not more than ___________ |
| A. | 30 m |
| B. | 45 m |
| C. | 50 m |
| D. | 55 m |
| Answer» B. 45 m | |
| 203. |
In reinforced concrete floors, the movement joints should normally be spaced at a maximum spacing of ____________ |
| A. | 6 m |
| B. | 4.5 m |
| C. | 7.5 m |
| D. | 9 m |
| Answer» D. 9 m | |
| 204. |
Which of the following is a movement joint with complete discontinuity in both reinforcement and concrete and intended to accommodate either expansion or contraction of the structure? |
| A. | Contraction joint |
| B. | Expansion joint |
| C. | Sliding joint |
| D. | Construction joints |
| Answer» C. Sliding joint | |
| 205. |
Which of the following is a movement joint with deliberate discontinuity but no initial gap? |
| A. | Contraction joint |
| B. | Expansion joint |
| C. | Sliding joint |
| D. | Construction joints |
| Answer» B. Expansion joint | |
| 206. |
A partial contraction joint is the one in which? |
| A. | both the concrete and reinforcing steel are interrupted |
| B. | only the concrete is interrupted |
| C. | only the reinforcement is interrupted |
| D. | none of them is interrupted |
| Answer» C. only the reinforcement is interrupted | |
| 207. |
Which of the following is not a movement joint? |
| A. | Contraction joint |
| B. | Expansion joint |
| C. | Sliding joint |
| D. | Construction joints |
| Answer» E. | |
| 208. |
Which of the following is usually adopted for contraction and construction joints? |
| A. | Rubber water bars |
| B. | V-shape metal bars |
| C. | PVC water bars |
| D. | Z-shape metal bars |
| Answer» D. Z-shape metal bars | |
| 209. |
Increased volumetric efficiency and reduced pumping losses can be done by varying cam timing using which component? |
| A. | Variable cam phaser |
| B. | Variable valve timing |
| C. | Hard cam |
| D. | Cylinder varying |
| Answer» B. Variable valve timing | |
| 210. |
Which material is not used for timing gear? |
| A. | Cast iron |
| B. | Steel |
| C. | Nichrome |
| D. | Aluminum |
| Answer» D. Aluminum | |
| 211. |
Which of the mentioned is the advantage of the toothed belt drive? |
| A. | Silent drive |
| B. | High vibration |
| C. | High heat built up |
| D. | High lubrication |
| Answer» B. High vibration | |
| 212. |
What are bonded to the inside layer of the load-carrying cords? |
| A. | Facing |
| B. | Backing plate |
| C. | Molded teeth |
| D. | Load-carrying cords |
| Answer» D. Load-carrying cords | |
| 213. |
Which component, transmit the torque load from the drive to the drive pulley? |
| A. | Facing |
| B. | Backing plate |
| C. | Molded teeth |
| D. | Load-carrying cords |
| Answer» E. | |
| 214. |
In overhead cams, which type of drive is used to drive camshaft? |
| A. | Gear |
| B. | Chain or belt |
| C. | Chain |
| D. | Toothed belt |
| Answer» C. Chain | |
| 215. |
What is the speed of the camshaft rotation? |
| A. | Half the crankshaft speed |
| B. | Double the crankshaft speed |
| C. | Thrice the crankshaft speed |
| D. | Same as crankshaft speed |
| Answer» B. Double the crankshaft speed | |
| 216. |
The end wise movement of the camshaft is limited by which component? |
| A. | Key |
| B. | Spigot |
| C. | Thrust plate |
| D. | Shear plate |
| Answer» D. Shear plate | |
| 217. |
What is the range of clearance given between bearing journals and the bores? |
| A. | 0.06 to 0.5cm |
| B. | 0.025 to 1.2mm |
| C. | 0.5 to 1cm |
| D. | 0.05 to 0.125mm |
| Answer» E. | |
| 218. |
Why is the clearance given between bearing journals and the bores? |
| A. | lubrication and metal expansion |
| B. | Friction |
| C. | For lubrication |
| D. | Thermal expansion |
| Answer» B. Friction | |
| 219. |
How many cam lobes are present on the camshaft per cylinder? |
| A. | 6 |
| B. | 5 |
| C. | 3 |
| D. | 2 |
| Answer» E. | |
| 220. |
In which type of engine Valve train is not present? |
| A. | 4-stroke petrol engine |
| B. | 2-stroke petrol engine |
| C. | 4-stroke diesel engine |
| D. | Boxer engine |
| Answer» C. 4-stroke diesel engine | |
| 221. |
What is that part of a cam lobe which controls the valve opening called as? |
| A. | Coldspot |
| B. | Hot spot |
| C. | Low spot |
| D. | High spot |
| Answer» E. | |
| 222. |
The system given by equation y(t – 2a) – 3y(t – a) + 2y(t) = x(t – a) is? |
| A. | – 3y(t – a) + 2y(t) = x(t – a) is?a) Stable |
| B. | Unstable |
| C. | Marginally stable |
| D. | 0 |
| Answer» B. Unstable | |
| 223. |
Find the laplace transform of input x(t) if the system given by d3⁄dt3 y(t) – 2 d2⁄dt2 y(t) –d⁄dt y(t) + 2y(t) = x(t), is stable. |
| A. | s + 1 |
| B. | s – 1 |
| C. | s + 2 |
| D. | s – 2 |
| Answer» C. s + 2 | |
| 224. |
The system given by equation 5 d3⁄dt3 y(t) + 10 d⁄dt y(t) – 5y(t) = x(t) + ∫0t x(t)dt, is? |
| A. | Stable |
| B. | Unstable |
| C. | Has poles 0, 0.455, -0.236±1.567 |
| D. | Has zeros 0, 0.455, -0.226±1.467 |
| Answer» B. Unstable | |
| 225. |
Any system is said to be stable if and only if ____________ |
| A. | It poles lies at the left of imaginary axis |
| B. | It zeros lies at the left of imaginary axis |
| C. | It poles lies at the right of imaginary axis |
| D. | It zeros lies at the right of imaginary axis |
| Answer» B. It zeros lies at the left of imaginary axis | |
| 226. |
Find the transfer function of a system given by equation d2⁄dt2 y(t-a) + x(t) + 5 d⁄dt y(t) = x(t-a). |
| A. | + x(t) + 5 d⁄dt y(t) = x(t-a).a) (e-as-s)/(1+e-as s2) |
| B. | (e-as-5s)/(e-as s2) |
| C. | (e-as-s)/(2+e-as s2) |
| D. | (e-as-5s)/(1+e-as s2) |
| Answer» E. | |
| 227. |
Find the poles of transfer function given by system d2⁄dt2 y(t) – d⁄dt y(t) + y(t) – ∫0t x(t)dt = x(t). |
| A. | 0, 0.7 ± 0.466 |
| B. | 0, 2.5 ± 0.866 |
| C. | 0, 0 .5 ± 0.866 |
| D. | 0, 1.5 ± 0.876 |
| Answer» D. 0, 1.5 ± 0.876 | |
| 228. |
Find the equation of transfer function which is defined by y(t)-∫0t y(t)dt + d⁄dt x(t) – 5Sin(t) = 0. |
| A. | \(\frac{s(e^{-as}-1)}{s-1}\) |
| B. | \(\frac{(e^{-as}-s)}{s-1}\) |
| C. | \(\frac{s(e^{-as}-s)}{s-1}\) |
| D. | \(\frac{s(e^{-as}-s^2)}{s-1}\) |
| Answer» D. \(\frac{s(e^{-as}-s^2)}{s-1}\) | |
| 229. |
Transfer function may be defined as ____________ |
| A. | Ratio of out to input |
| B. | Ratio of laplace transform of output to input |
| C. | Ratio of laplace transform of output to input with zero initial conditions |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 230. |
_______ speed WECS is the most flexible in terms of the generator used. |
| A. | Full variable |
| B. | Limited variable |
| C. | Half variable |
| D. | Fixed |
| Answer» B. Limited variable | |
| 231. |
Which of the following is a flowchart depicting WECS modelling? |
| A. | Wind turbine aerodynamic model → gear train model → power grid → generator (PMSG/DFIG) |
| B. | Wind turbine aerodynamic model → generator (PMSG/DFIG) → gear train model → power grid |
| C. | Wind turbine aerodynamic model → generator (PMSG/DFIG) → power grid → gear train model |
| D. | Wind turbine aerodynamic model → gear train model → generator (PMSG/DFIG) → power grid |
| Answer» E. | |
| 232. |
Which of the following generators are mostly used in WECS? |
| A. | PMSG and SCIG |
| B. | DFIG and SCIG |
| C. | DFIG and PMSG |
| D. | VAWT and HAWT |
| Answer» D. VAWT and HAWT | |
| 233. |
What is super-synchronous mode in doubly-fed induction generator (DFIG)? |
| A. | Rotor runs below synchronous speed |
| B. | Rotor runs above synchronous speed |
| C. | Rotor runs at synchronous speed |
| D. | Rotor takes power from AC mains |
| Answer» C. Rotor runs at synchronous speed | |
| 234. |
What is sub-synchronous mode in doubly-fed induction generator (DFIG)? |
| A. | Rotor runs below synchronous speed |
| B. | Rotor runs above synchronous speed |
| C. | Rotor runs at synchronous speed |
| D. | Slip power is fed into AC power supply |
| Answer» B. Rotor runs above synchronous speed | |
| 235. |
What is the function of grid side converter? |
| A. | To ensure operation at low power factor |
| B. | To control generator in terms of reactive power |
| C. | To control generator in terms of active power |
| D. | To control the DC-link voltage |
| Answer» E. | |
| 236. |
What is the function of rotor side converter? |
| A. | To control the DC-link voltage |
| B. | To ensure operation at large power factor |
| C. | To control generator in terms of active and reactive power |
| D. | To ensure operation at low power factor |
| Answer» D. To ensure operation at low power factor | |
| 237. |
Which of the following components are used as converters in power electronics converter? |
| A. | BJT |
| B. | Earphone |
| C. | IGBT |
| D. | Wi-Fi driver |
| Answer» D. Wi-Fi driver | |
| 238. |
Which generator is used in variable speed WECS? |
| A. | Squirrel-cage induction |
| B. | Doubly-fed induction |
| C. | Induction squirrel |
| D. | Induction generator |
| Answer» C. Induction squirrel | |
| 239. |
How is the speed varied in limited variable speed WECS? |
| A. | Variable rotor resistance |
| B. | Fixed rotor resistance |
| C. | Fixed capacitance |
| D. | Variable rotor |
| Answer» B. Fixed rotor resistance | |
| 240. |
What is the percentage of H2O in the product? |
| A. | 15 |
| B. | 23 |
| C. | 39 |
| D. | 51 |
| Answer» C. 39 | |
| 241. |
What is the percentage of C3H7O4 in the product? |
| A. | 10 |
| B. | 16 |
| C. | 31 |
| D. | 43 |
| Answer» D. 43 | |
| 242. |
What is the percentage of N2 in the product? |
| A. | 8 |
| B. | 18 |
| C. | 34 |
| D. | 46 |
| Answer» B. 18 | |
| 243. |
Which one is the excess reactant?a) N2b) H2c) Both N2 and H2d) Neither N2 nor H2 7-10. For a given reaction reactor is supplied with a feed of composition 46% C3H7O4, 44% O2 and 10% N2 and if 50% of the limiting reagent conversion takes place.4C3H7O4 + 11O2 → 12CO2 + 14H2O7. What is the percentage of O2 in the product? |
| A. | N2b) H2c) Both N2 and H2d) Neither N2 nor H2 7-10. For a given reaction reactor is supplied with a feed of composition 46% C3H7O4, 44% O2 and 10% N2 and if 50% of the limiting reagent conversion takes place.4C3H7O4 + 11O2 → 12CO2 + 14H2O7. What is the percentage of O2 in the product?a) 10 |
| B. | H2c) Both N2 and H2d) Neither N2 nor H2 7-10. For a given reaction reactor is supplied with a feed of composition 46% C3H7O4, 44% O2 and 10% N2 and if 50% of the limiting reagent conversion takes place.4C3H7O4 + 11O2 → 12CO2 + 14H2O7. What is the percentage of O2 in the product?a) 10b) 18 |
| C. | Both N2 and H2d) Neither N2 nor H2 7-10. For a given reaction reactor is supplied with a feed of composition 46% C3H7O4, 44% O2 and 10% N2 and if 50% of the limiting reagent conversion takes place.4C3H7O4 + 11O2 → 12CO2 + 14H2O7. What is the percentage of O2 in the product?a) 10b) 18c) 38 |
| D. | Neither N2 nor H2 7-10. For a given reaction reactor is supplied with a feed of composition 46% C3H7O4, 44% O2 and 10% N2 and if 50% of the limiting reagent conversion takes place.4C3H7O4 + 11O2 → 12CO2 + 14H2O7. What is the percentage of O2 in the product?a) 10b) 18c) 38d) 54View Answer |
| Answer» C. Both N2 and H2d) Neither N2 nor H2 7-10. For a given reaction reactor is supplied with a feed of composition 46% C3H7O4, 44% O2 and 10% N2 and if 50% of the limiting reagent conversion takes place.4C3H7O4 + 11O2 → 12CO2 + 14H2O7. What is the percentage of O2 in the product?a) 10b) 18c) 38 | |
| 244. |
What is the number of moles of NH3 after the reaction? |
| A. | 10 |
| B. | 15 |
| C. | 20 |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 245. |
What is the number of moles of H2 after the reaction? |
| A. | 10 |
| B. | 15 |
| C. | 20 |
| D. | None of the mentioned |
| Answer» B. 15 | |
| 246. |
What is the number of moles of N2 after the reaction? |
| A. | 0 |
| B. | 5 |
| C. | 10 |
| D. | None of the mentioned |
| Answer» B. 5 | |
| 247. |
In Ammonia production, a reactor is supplied with a feed of 10 moles of N2¬ and 40 moles of H2. If the reaction takes place completely,1. What is the extent of the reaction? |
| A. | 10 |
| B. | 15 |
| C. | 20 |
| D. | None of the mentionedView Answer |
| Answer» B. 15 | |
| 248. |
Cup head riveting provides maximum strength. |
| A. | True |
| B. | False |
| Answer» C. | |
| 249. |
There can be 4 rows of rivets in lap joint. |
| A. | True |
| B. | False |
| Answer» C. | |
| 250. |
The following figure represents which rivet head? |
| A. | Pan head |
| B. | Conical head |
| C. | Countersunk head |
| D. | Cup head |
| Answer» E. | |