

MCQOPTIONS
Saved Bookmarks
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. | |