MCQOPTIONS
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MCQOPTIONS
This section includes 5314 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 2251. |
_________ is the depression created inside the door frame in order to receive the door shutter. |
| A. | Rebate |
| B. | Reveal |
| C. | Jamb |
| D. | Ledge |
| Answer» B. Reveal | |
| 2252. |
The horizontal length of the holdfast is ________ |
| A. | 5 cm |
| B. | 10 cm |
| C. | 20 cm |
| D. | 25 cm |
| Answer» D. 25 cm | |
| 2253. |
Holdfasts are generally bent into __________ shape. |
| A. | T |
| B. | Z |
| C. | H |
| D. | K |
| Answer» C. H | |
| 2254. |
________ are used to fix the frame in the opening of the wall. |
| A. | Jambs |
| B. | Shutters |
| C. | Holdfasts |
| D. | Rails |
| Answer» D. Rails | |
| 2255. |
The sill of a door is known as ________ |
| A. | Head |
| B. | Frame |
| C. | Shutter |
| D. | Threshold |
| Answer» E. | |
| 2256. |
__________ is the vertical face of an opening in the wall which supports the door frame. |
| A. | Shutter |
| B. | Jamb |
| C. | Style |
| D. | Head |
| Answer» C. Style | |
| 2257. |
Intermediate rail is also known as ___________ |
| A. | Top rail |
| B. | Bottom rail |
| C. | Cross-rail |
| D. | Lock rail |
| Answer» D. Lock rail | |
| 2258. |
With respect to end terminal modification of the histone tail which of the following options is true? |
| A. | Lysine – phosphate modification |
| B. | Serine – methylation |
| C. | Acetylation – transcriptionally active |
| D. | Modifications – involvement in gene expression |
| Answer» E. | |
| 2259. |
Which of the following regions promote histone – DNA association? |
| A. | A, T |
| B. | A, G |
| C. | G, C |
| D. | C, T |
| Answer» B. A, G | |
| 2260. |
Which of the following facilitates nucleosome positioning? |
| A. | Nucleosome remodeling complex |
| B. | Topoisomerase II |
| C. | SMC protein |
| D. | DNA – binding protein |
| Answer» E. | |
| 2261. |
Feed check valve is used to empty the boiler when it is required to be cleaned. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2262. |
Where is feed check valve mounted? |
| A. | On top of the boiler shell |
| B. | At the bottom of the boiler shell |
| C. | Above the water level to be maintained |
| D. | Slightly below the water level to be maintained |
| Answer» E. | |
| 2263. |
Which of the following statement about stop valve (or junction valve) is FALSE? |
| A. | It regulates the flow of steam |
| B. | Fitted at top of the boiler |
| C. | It connects boiler with the steam pipe |
| D. | The smaller sized valve is called junction valve |
| E. | is FALSE?a) It regulates the flow of steamb) Fitted at top of the boilerc) It connects boiler with the steam piped) The smaller sized valve is called junction valve |
| Answer» E. is FALSE?a) It regulates the flow of steamb) Fitted at top of the boilerc) It connects boiler with the steam piped) The smaller sized valve is called junction valve | |
| 2264. |
Which of the following statements about feed check valve is FALSE? |
| A. | It controls the flow of water |
| B. | It only allows flow of water in one direction |
| C. | It is fitted on top of the boiler shell |
| D. | It consists of check valve which automatically moves up and down under pressure of water |
| Answer» D. It consists of check valve which automatically moves up and down under pressure of water | |
| 2265. |
The part of the feed check valve which moves up and down automatically under the pressure of water on its gun metal seat is called _____ |
| A. | Check valve |
| B. | Fusible plug |
| C. | Flange |
| D. | Safety valve |
| Answer» B. Fusible plug | |
| 2266. |
What is the function of a feed check valve? |
| A. | It regulates the flow of hot gases from the fire-box |
| B. | It controls the flow of air to the combustion chamber |
| C. | It controls the supply of steam outside the boiler |
| D. | It controls the supply of water to boiler |
| Answer» E. | |
| 2267. |
In a fusible plug, the substance that melts when it comes in contact with the steam is called _____ |
| A. | Melt |
| B. | Meting wax |
| C. | Fusible metal |
| D. | Fusible wax |
| Answer» D. Fusible wax | |
| 2268. |
Which of the following statements about blow-off cock is FALSE? |
| A. | It is used to discharge the mud that has settled at the bottom |
| B. | It is used to empty the boiler for cleaning |
| C. | Scale and sediments are also removed when the blow-off cock is opened |
| D. | It is used to fill the boiler with water |
| Answer» E. | |
| 2269. |
In fusible plug, the fusible metal is protected from fire by flange on the hollow gun metal plug. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2270. |
Which of the following statements about fusible plug is FALSE? |
| A. | It extinguishes fire when water level is low |
| B. | It protects the boiler from overheating |
| C. | It should have a very high melting point |
| D. | It needs to be renewed after a period of time |
| Answer» D. It needs to be renewed after a period of time | |
| 2271. |
What is the function of fusible plug? |
| A. | Protects the boiler from overheating |
| B. | Prevents mixing of water and steam |
| C. | Regulated the flow of steam outside boiler |
| D. | It is opened to increase the flow of air for combustion |
| Answer» B. Prevents mixing of water and steam | |
| 2272. |
Which of the mentioned below is the equation of resultant bending moment? |
| A. | τ=\(\sqrt{(\eta_b)v^2+(\rho_b)h^2}\) b) Mb=\(\sqrt{(M_b)v^2+(M_b)h^2}\) c) ω=\(\sqrt{(M_b)v^2+(M_b)v^2}\) d) Mb=\(\sqrt{(\omega_b)v^2+(\omega_ |
| B. | v^2+(\rho_b)h^2}\) b) Mb=\(\sqrt{(M_b)v^2+(M_b)h^2}\) |
| C. | ω=\(\sqrt{(M_b)v^2+(M_b)v^2}\) |
| D. | Mb=\(\sqrt{(\omega_b)v^2+(\omega_b)h^2}\) |
| Answer» C. ω=\(\sqrt{(M_b)v^2+(M_b)v^2}\) | |
| 2273. |
Which of the mentioned below is the formula for total compressive stress? |
| A. | A+B=C |
| B. | (σc)t=σc+σb |
| C. | t=σc+σbc) τc=τa+τb |
| D. | ρ=ω+σ |
| Answer» C. t=σc+σbc) τc=τa+τb | |
| 2274. |
Which are the two stresses that act inside crankshaft? |
| A. | Shear and bending stress |
| B. | Compressive and bending stress |
| C. | Tensile and compressive stress |
| D. | Compressive and shear stress |
| Answer» C. Tensile and compressive stress | |
| 2275. |
Find the symmetry reactions R1 and R2 when load acting is 10KN? |
| A. | 12873N and 7178N |
| B. | 5000N and 6000N |
| C. | 9138N and 21876N |
| D. | 6000N and 12000N |
| Answer» C. 9138N and 21876N | |
| 2276. |
Calculate the radial component, where Pq=71260N, Ф=7.32, ϴ=35? |
| A. | 89173.7N |
| B. | 52689.3N |
| C. | 21938.8N |
| D. | 91732.18N |
| Answer» C. 21938.8N | |
| 2277. |
Calculate the tangential component, where Pq=71260N, Φ=7.32, ϴ=35? |
| A. | 21878N |
| B. | 18979N |
| C. | 47977N |
| D. | 18978N |
| Answer» D. 18978N | |
| 2278. |
In the formula c={\(\frac{l_1}{2}+t+\frac{l_2}{2}+m\)}, what is t? |
| A. | Diameter of piston |
| B. | The diameter of the connecting rod |
| C. | Diameter of bore |
| D. | Width of flywheel |
| Answer» E. | |
| 2279. |
Calculate the length of crankpin when the diameter of crankpin is 150? |
| A. | 120mm |
| B. | 178mm |
| C. | 210mm |
| D. | 160mm |
| Answer» B. 178mm | |
| 2280. |
In the formula l1=1.75dc, what is dc? |
| A. | Diameter of bore |
| B. | The diameter of the connecting rod |
| C. | The diameter of crankpin |
| D. | Diameter of piston |
| Answer» D. Diameter of piston | |
| 2281. |
Calculate the length of the bearing when the diameter of the crankpin is 150? |
| A. | 377mm |
| B. | 262.5mm |
| C. | 938.7mm |
| D. | 654.27mm |
| Answer» C. 938.7mm | |
| 2282. |
Calculate the bending moment, when Pt=47900N and lc=170mm? |
| A. | 8143KN-mm |
| B. | 5983KN-mm |
| C. | 9075KN-mm |
| D. | 4578KN-mm |
| Answer» B. 5983KN-mm | |
| 2283. |
In the reaction (R1)v, what does v represent? |
| A. | Reaction on the central plane |
| B. | Reaction on a horizontal plane |
| C. | Reaction on a vertical plane |
| D. | The horizontal and vertical plane |
| Answer» D. The horizontal and vertical plane | |
| 2284. |
In the formula sinΦ=\(\frac{sinθ}{(l/r)}\), what is ϴ? |
| A. | The angle of inclination of connecting rod with a line of dead centers |
| B. | The angle of inclination of the crank with a line of action |
| C. | The angle of inclination of the crank with a line of dead centres |
| D. | The angle of inclination of the crank with connecting rod |
| Answer» D. The angle of inclination of the crank with connecting rod | |
| 2285. |
In the formula sinΦ=\(\frac{sinθ}{(l/r)}\), what is Φ? |
| A. | The angle of inclination of the crankshaft with the line of action |
| B. | The angle of inclination of connecting rod with the line of action |
| C. | The angle of inclination of the crankshaft with the line of dead centers |
| D. | The angle of inclination of connecting rod with the line of dead centers |
| Answer» E. | |
| 2286. |
The main diagonal mij is expressed as |
| A. | –(1+Aij) |
| B. | -(Aij) |
| C. | 1-Aij |
| D. | Aij |
| Answer» B. -(Aij) | |
| 2287. |
The adiabatic split of vapor and liquid portion are expressed as |
| A. | VIf and LiF |
| B. | KIf and LiF |
| C. | VIf and KiF |
| D. | XIf and YiF |
| Answer» D. XIf and YiF | |
| 2288. |
The transposed feed Rate vector, is proportional to |
| A. | T |
| B. | G |
| C. | K |
| D. | P |
| Answer» B. G | |
| 2289. |
The transposed vapor rate vector, Vi is raised to power of |
| A. | Jk |
| B. | Ik |
| C. | T |
| D. | P |
| Answer» D. P | |
| 2290. |
The Wang Henke equation is used, for the calculation of |
| A. | Flow rates |
| B. | Volatility |
| C. | Stages |
| D. | Reflux |
| Answer» B. Volatility | |
| 2291. |
The solute, while moving in the column is always in equilibrium with both the stationary phase and the mobile phase. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2292. |
It is more difficult to measure the width at half peak height than the base width in the detector output. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2293. |
Which of the following equations give the expression for plate number, N when ‘tR’ is the adjusted retention time and ‘Wb’ is the width at the base of the peak which is equal to 4 standard deviations. |
| A. | 16 tR2/Wbb) 4 tR2/Wbc) (4tR/Wb)2d) 4 (tR/W |
| B. | 4 tR2/Wb |
| C. | (4tR/Wb)2 |
| D. | 4 (tR/Wb)2 |
| Answer» D. 4 (tR/Wb)2 | |
| 2294. |
In gas-liquid chromatography, when films are used in the interior of the capillary column, then what is the value of Eddy diffusion? |
| A. | Greater than 1 |
| B. | Less than 1 |
| C. | Zero |
| D. | Less than zero |
| Answer» D. Less than zero | |
| 2295. |
Which of the following is the expression for longitudinal diffusion in the column, if ‘γ’ represents obstruction factor, ‘dM’ represents particle diameter, ‘DM’ represents Solute diffusion co-efficient and ‘λ’ represents function for packing uniformity? |
| A. | λ dM |
| B. | 2 γ DM |
| C. | DM γ |
| D. | λ/dM |
| Answer» C. DM γ | |
| 2296. |
Which of the following is the expression for Eddy diffusion in the column, if ‘γ’ represents obstruction factor, ‘dp’ represents particle diameter, ‘DM’ represents Solute diffusion co-efficient and ‘λ’ represents function for packing uniformity? |
| A. | λ dM |
| B. | 2 γ DM |
| C. | DM γ |
| D. | λ/dM |
| Answer» B. 2 γ DM | |
| 2297. |
Which of the following is the distance that the solute moves while undergoing one partition? |
| A. | Retention distance |
| B. | Distribution constant |
| C. | Plate height |
| D. | Column packing length |
| Answer» D. Column packing length | |
| 2298. |
Why is air pre-heater used in the boiler? |
| A. | To draw in the atmospheric air |
| B. | To increase thermal efficiency |
| C. | To heat the air to superheated level |
| D. | To heat the air in advance |
| Answer» C. To heat the air to superheated level | |
| 2299. |
In what form is the coal used in boiler? |
| A. | Big chunks. |
| B. | Medium size crushed |
| C. | Powder form |
| D. | Mixed with fluid |
| Answer» D. Mixed with fluid | |
| 2300. |
What is the main purpose of using an economizer in a boiler? |
| A. | To control the process of steam conversion |
| B. | To reduce energy consumption |
| C. | To increase the temperature of boiler |
| D. | To maintain a constant temperature inside a boiler |
| Answer» B. To reduce energy consumption | |