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This section includes 2095 Mcqs, each offering curated multiple-choice questions to sharpen your Php knowledge and support exam preparation. Choose a topic below to get started.
201. |
Which of the following component movement interrupts the electrical supply by disconnecting the breaker points? |
A. | Float chamber |
B. | Diaphragm |
C. | Strainer |
D. | Armature |
Answer» E. | |
202. |
Which system experiences Vapour locking in the fuel system? |
A. | A.C mechanical pump |
B. | S U electrical pump |
C. | Both A.C mechanical pump and S U electrical pump |
D. | Electrical pump |
Answer» B. S U electrical pump | |
203. |
Which valve opens when the downward movement of the diaphragm causes a vacuum in the chamber? |
A. | Outlet |
B. | Inlet |
C. | Both outlet and inlet |
D. | Transfer |
Answer» C. Both outlet and inlet | |
204. |
Which of the following is the correct sequence of fuel travel? |
A. | Tank – fuel pump – fuel filter – carburetor |
B. | Tank – fuel filter – fuel pump – carburetor |
C. | Fuel filter – fuel pump – tank – carburetor |
D. | Carburetor – fuel pump – fuel filter – tank |
Answer» B. Tank – fuel filter – fuel pump – carburetor | |
205. |
Which type of energy is used to operate the diaphragm in an S U electrical pump? |
A. | Mechanical |
B. | Hydraulic |
C. | Electrical |
D. | Solar |
Answer» D. Solar | |
206. |
Which material is used in the diaphragm of an A.C mechanical pump?. |
A. | Paper |
B. | Metal sheet |
C. | High-grade cotton and rubber |
D. | Ceramic |
Answer» D. Ceramic | |
207. |
Which of the following helps in the relief of the excess pressure which is built up? |
A. | Pull rod |
B. | Diaphragm return spring |
C. | Camshaft |
D. | Suction valve |
Answer» C. Camshaft | |
208. |
Which of the following provides the force to drive the pump? |
A. | Crankshaft |
B. | Differential |
C. | Camshaft |
D. | V-belt |
Answer» D. V-belt | |
209. |
What is the pressure range in kPa in the petrol pipeline between the fuel pump and the carburetor? |
A. | 5-10 |
B. | 10-20 |
C. | 20-35 |
D. | 35-40 |
Answer» D. 35-40 | |
210. |
Which material is used for the valves of the A.C mechanical pump? |
A. | Cast iron |
B. | Plastic |
C. | Bakelite |
D. | Paper |
Answer» D. Paper | |
211. |
The typical squelch circuit cuts off __________ |
A. | An audio amplifier when the carrier is absent |
B. | RF interference when the signal is weak |
C. | An IF amplifier when Automatic Gain Control is maximum |
D. | An IF amplifier when Automatic Gain Control is minimum |
Answer» B. RF interference when the signal is weak | |
212. |
Frequency components of an AM wave are? |
A. | Carrier frequency (ωc) with amplitude A |
B. | Lower side band (ωc + ωm) having amplitude mA⁄4c) Upper side band (ωc – ωm) having amplitude mA⁄4d) Carrier frequency (ω |
C. | with amplitude Ab) Lower side band (ωc + ωm) having amplitude mA⁄4c) Upper side band (ωc – ωm) having amplitude mA⁄4 |
D. | Carrier frequency (ωc) with amplitude A⁄2 |
Answer» B. Lower side band (ωc + ωm) having amplitude mA⁄4c) Upper side band (ωc – ωm) having amplitude mA⁄4d) Carrier frequency (ω | |
213. |
The IF bandwidth of a radar receiver is inversely proportional to the __________ |
A. | pulse repetition frequency |
B. | pulse width |
C. | pulse amplitude |
D. | pulse code |
Answer» C. pulse amplitude | |
214. |
What is the advantage of using direct current in magnetic particle inspection? |
A. | Battery maintenance |
B. | Demagnetize easy |
C. | Variable voltage supply |
D. | Subsurface detection |
Answer» E. | |
215. |
The minimum width of crack, which can be inspected by magnetic particle inspection is _________ |
A. | 1nm |
B. | 1µm |
C. | 10µm |
D. | 1mm |
Answer» C. 10µm | |
216. |
What is Curie point for most of the ferrous magnetic materials? |
A. | 550˚C |
B. | 760˚C |
C. | 910˚C |
D. | 1133˚C |
Answer» C. 910˚C | |
217. |
Which of the following material can’t be tested by magnetic particle testing? |
A. | Co |
B. | Fe |
C. | Ni |
D. | Mg |
Answer» E. | |
218. |
Which of the following material can be tested by magnetic particle testing? |
A. | Diamagnetic |
B. | Non-magnetic |
C. | Paramagnetic |
D. | Ferromagnetic |
Answer» E. | |
219. |
___________ increases the visibility of the flaw in liquid penetrant inspection. |
A. | Developer |
B. | Penetrant |
C. | Benzene |
D. | Spirit |
Answer» B. Penetrant | |
220. |
Which is the correct order for the liquid penetrant test? |
A. | Penetrant apply, development, inspection, surface preparation |
B. | Surface preparation, penetrant apply, development, inspection |
C. | Penetrant apply, development, surface preparation, inspection |
D. | Development, surface preparation, penetrant apply, inspection |
Answer» C. Penetrant apply, development, surface preparation, inspection | |
221. |
Liquid penetrant test can’t be used on _________ specimen. |
A. | Large |
B. | Simple |
C. | Complex |
D. | Internally defected |
Answer» E. | |
222. |
What is the disadvantage of the liquid penetrant test? |
A. | Expensive |
B. | Slow |
C. | Not reliable |
D. | Depth restriction |
Answer» E. | |
223. |
Is additional term can be added to make an aircraft wing station? |
A. | True |
B. | False |
Answer» B. False | |
224. |
Is local induced change the angle of attack on a given section of a wing? |
A. | True |
B. | False |
Answer» B. False | |
225. |
Is prandtl lifting line theory predicts lift distribution over a three dimensional wing? |
A. | True |
B. | False |
Answer» B. False | |
226. |
_______ aids in cushioning the shock of the hydraulic pressure during the working of the hydraulic ram |
A. | Pressure vessel |
B. | air bags |
C. | inlet valve |
D. | Drive pipe |
Answer» B. air bags | |
227. |
The typical efficiency of a hydraulic ram is ____ |
A. | 50% |
B. | 60% |
C. | 70% |
D. | 80% |
Answer» C. 70% | |
228. |
Hydraulic Ram is used in areas where there is a source of ________ power. |
A. | Thermal |
B. | Hydroelectric |
C. | Biogas |
D. | Solar |
Answer» C. Biogas | |
229. |
A hydraulic ram uses the _______ effect to develop pressure. |
A. | Water hammer |
B. | Pascal’s law |
C. | Bernouille’s |
D. | Toricelli’s |
Answer» B. Pascal’s law | |
230. |
A ________ is a cyclic water pump that derives its power from hydroelectric sources. |
A. | Hydraulic crane |
B. | Hydraulic Ram |
C. | Hydraulic Accumulator |
D. | Hydraulic presses |
Answer» C. Hydraulic Accumulator | |
231. |
A __________ is a hydraulic machine for converting hydraulic power at low pressure into a reduced volume at higher pressure. |
A. | Hydraulic Ram |
B. | Hydraulic crane |
C. | Hydraulic Intensifier |
D. | Hydraulic accumulator |
Answer» D. Hydraulic accumulator | |
232. |
Aniline reacts with which of these to form Schiff base? |
A. | Acetic acid |
B. | Benzaldehyde |
C. | Acetone |
D. | NH3 |
Answer» C. Acetone | |
233. |
Identify the product Z in the following reaction. |
A. | p-Bromoaniline |
B. | p -Bromoacetophenone |
C. | o-Bromoacetophenone |
D. | o-Bromoacetanilide |
Answer» B. p -Bromoacetophenone | |
234. |
p-chloro aniline and anilinium hydrogen chloride can be distinguished by which of the following? |
A. | Sandmaeyer reaction |
B. | Carbyl amine reaction |
C. | Hinsberg’s reaction |
D. | AgNO3 |
Answer» E. | |
235. |
Ethyl amine on acetylation gives which of the following? |
A. | N-ethyl acetamide |
B. | Acetamide |
C. | Methyl acetamide |
D. | Propyl acetamide |
Answer» B. Acetamide | |
236. |
In the reaction, what is the compound C6H5N=CHC6H5 is known as?C6H5CHO + C6H5NH2 → C6H5N=HCC6H5 + H2O |
A. | Aldol |
B. | Schiffs reagent |
C. | Schiffs base |
D. | Benedict reagent |
Answer» D. Benedict reagent | |
237. |
The amine which can react with C6H5−SO2−Cl to form a product insoluble in alkali shall be, is which of the following? |
A. | Primary amine |
B. | Secondary amine |
C. | Tertiary amine |
D. | Both primary and secondary amines |
Answer» C. Tertiary amine | |
238. |
A primary amine can be converted to an alcohol by the action of which of the following? |
A. | Alkali |
B. | Nitrous acid |
C. | Reducing agent |
D. | Oxidizing agent |
Answer» C. Reducing agent | |
239. |
The order of the Cascade system doesn’t depend on the output. Which is the property? |
A. | Commutative |
B. | Associative |
C. | Commutative and distributive |
D. | Distributive |
Answer» C. Commutative and distributive | |
240. |
What does the associative property apply? |
A. | Parallel connection of two systems is equivalent to a single system only in case of a continuous system |
B. | Series and parallel interconnection of two systems is equivalent to a single system only in case of discrete system |
C. | Series interconnection of two systems is equivalent to a single system in case of both continuous and discrete system |
D. | Series interconnection of two systems is equivalent to a single system only in case of discrete |
Answer» D. Series interconnection of two systems is equivalent to a single system only in case of discrete | |
241. |
Which is special the property listed below only holds good by an LTI system? |
A. | Memory |
B. | Stability |
C. | Causality |
D. | Distributive property |
Answer» E. | |
242. |
Which of the following person is famous as ‘Blade Runner’? |
A. | Usain Bolt |
B. | Milkha Singh |
C. | Oscar Pistorius |
D. | Meb Keflezighi |
Answer» D. Meb Keflezighi | |
243. |
The region of implants for various parts of an artificial eye can be _________i. Corneaii. Conjectivaiii. Retinaiv. Optic Nervev. Chiasmavi. Lateral geniculate bodyvii. Visual Cortex |
A. | iii, iv, vi, vii |
B. | i, iii, v, vi |
C. | ii, iv, v, vii |
D. | i, ii |
Answer» B. i, iii, v, vi | |
244. |
It is difficult to make an artificial liver so a substitutive technology, like the dialysis machine, is being made. Which of the options is mostly considered in making such machines? |
A. | Using hepatocytes to filter blood |
B. | Using semi permeable membrane to filter plasma |
C. | Using solutions of different organic and inorganic composition, just like dialysate, to filter blood |
D. | Filtering the organic and inorganic components of the blood separately |
Answer» B. Using semi permeable membrane to filter plasma | |
245. |
Calculate the final flux in an inductor having inductance 4000 H, number of turns is 200 and the current changes from 5A to 7A. The initial flux is 760 Wb. |
A. | 200 Wb |
B. | 400 Wb |
C. | 600 Wb |
D. | 800 Wb |
Answer» E. | |
246. |
Calculate the change in flux of an inductor having inductance 4000 H, number of turns is 200 and the current changes from 5A to 7A. |
A. | 20 Wb |
B. | 40 Wb |
C. | 60 Wb |
D. | 80 Wb |
Answer» C. 60 Wb | |
247. |
Calculate the initial current in an inductor having inductance 4000 H, number of turns is 200 and the flux changes from 760 to 800 Wb. Current changes to 7A. |
A. | 10A |
B. | 2A |
C. | 3A |
D. | 5A |
Answer» E. | |
248. |
Calculate the change in current in an inductor having inductance 4000H, number of turns is 200 and the flux changes from 760 to 800 Wb. |
A. | 2A |
B. | 4A |
C. | 6A |
D. | 8A |
Answer» B. 4A | |
249. |
Calculate the number of turns in an inductor with a ferromagnetic core when the inductance is 4000 H, the current changes from 5A to 7A and the flux changes from 760 to 800 Wb. |
A. | 100 |
B. | 200 |
C. | 300 |
D. | 400 |
Answer» C. 300 | |
250. |
A laminated steel ring is wound with 200 turns. When the magnetizing current varies between 5 and 7 A, the magnetic flux varies between 760 and 800 Wb. Calculate the inductance of the coil. |
A. | 40H |
B. | 4 H |
C. | 4000H |
D. | 0.004 H |
Answer» D. 0.004 H | |