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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.
| 1301. |
____ algorithm was used by Clipper Chip Key – Escrow cryptography technique for transmission of information. |
| A. | Baton |
| B. | Havequick |
| C. | Saville |
| D. | Skipjack |
| Answer» E. | |
| 1302. |
Clipper Chip Key – Escrow involves using ____ for security. |
| A. | one way key |
| B. | two way key |
| C. | four way key |
| D. | eight way key |
| Answer» C. four way key | |
| 1303. |
Which of the following is not a data format extension? |
| A. | Boolean |
| B. | Floating |
| C. | Fix |
| D. | Double |
| Answer» B. Floating | |
| 1304. |
____ enables context switching. |
| A. | Push/Pop of register stack |
| B. | ALU |
| C. | Bus |
| D. | Memory |
| Answer» B. ALU | |
| 1305. |
Which of the following addressing modes contain operand in the instruction? |
| A. | Direct |
| B. | Indirect |
| C. | Register |
| D. | Immediate |
| Answer» E. | |
| 1306. |
Early DSP devices contained ____ extension and ____ extension. |
| A. | addressing, pipelining |
| B. | instruction, data format |
| C. | addressing, data format |
| D. | instruction, pipeling |
| Answer» C. addressing, data format | |
| 1307. |
CORBA IDL is suitable for translating application layer request into a soft radio interface layer request. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1308. |
Which of the following is not a layer in the soft radio model proposed by Srikanteswara? |
| A. | Application layer |
| B. | Configuration layer |
| C. | Processing layer |
| D. | Tunneling layer |
| Answer» E. | |
| 1309. |
Which of the following exhibits low efficiency when implemented using FPGA? |
| A. | FFT algorithm |
| B. | Database algorithm |
| C. | Convolution algorithm |
| D. | FEC algorithm |
| Answer» C. Convolution algorithm | |
| 1310. |
A state transition maps the relation between ____and ____ to compute the _____ |
| A. | present state, input, output |
| B. | present output, input, feedback |
| C. | input, feedback, output |
| D. | present state, output, feedback |
| Answer» B. present output, input, feedback | |
| 1311. |
FPGA’s are designed specifically for fast implementation of ____a) state machinesb) state flowc) state machines and state flowd) state machines and sequential logic 2.State machines consist of ____ that represents the number of states. |
| A. | state machinesb) state flowc) state machines and state flowd) state machines and sequential logic 2.State machines consist of ____ that represents the number of states.a) a memory |
| B. | state flowc) state machines and state flowd) state machines and sequential logic 2.State machines consist of ____ that represents the number of states.a) a memoryb) states |
| C. | state machines and state flowd) state machines and sequential logic 2.State machines consist of ____ that represents the number of states.a) a memoryb) statesc) clock |
| D. | state machines and sequential logic 2.State machines consist of ____ that represents the number of states.a) a memoryb) statesc) clockd) control signalView Answer |
| Answer» E. | |
| 1312. |
What is minimum cement content for concrete permanently under sea water to avoid the corrosion of reinforcement? |
| A. | 5 kN/m3 |
| B. | 5 N/m3 |
| C. | 3 kN/m3 |
| D. | 3 N/m3 |
| Answer» D. 3 N/m3 | |
| 1313. |
It is found that the _______ water does not lead to corrosion of reinforcement, provided the concrete is dense and there is enough cover to the reinforcement. |
| A. | Sewage |
| B. | Fresh |
| C. | River |
| D. | Sea |
| Answer» E. | |
| 1314. |
The ________ water tends to develop dampness and inflorescence of the concrete structures. |
| A. | Lake |
| B. | Mineral |
| C. | Sea |
| D. | River |
| Answer» D. River | |
| 1315. |
The term ________ is define as an act or process of gradual wearing away of a metal due to chemical or electro chemical reaction by its surrounding such that the metal is converted into an oxide, salt or some other compound. |
| A. | Precipitation |
| B. | Dissolution |
| C. | Erosion |
| D. | Corrosion |
| Answer» E. | |
| 1316. |
Which of the following is not a feature of cross-section elements of a highway? |
| A. | Shoulders |
| B. | Side slopes |
| C. | Curbs |
| D. | Signal |
| Answer» E. | |
| 1317. |
Broken-back grade lines should be provided where ever practicable. |
| A. | True |
| B. | False |
| Answer» C. | |
| 1318. |
The sight distance in a sag vertical curve is limited by which factor given below during night time driving condition? |
| A. | Design speed |
| B. | Driver’s height |
| C. | Headlamp range |
| D. | Ruling speed |
| Answer» D. Ruling speed | |
| 1319. |
What is the mid-ordinate of a curve with a radius of curvature 2m and angle of deflection = 60°? |
| A. | 0.342 |
| B. | 0.268 |
| C. | 0.112 |
| D. | 0.245 |
| Answer» C. 0.112 | |
| 1320. |
What are the two types of vertical curves? |
| A. | Crest and sag |
| B. | Crest and plume |
| C. | Sag and sink |
| D. | Sink and fall |
| Answer» B. Crest and plume | |
| 1321. |
The distance from the centreline of the inside lane to the nearest roadside sight blockage is called. |
| A. | Length of curve |
| B. | Apex |
| C. | Mid-ordinate |
| D. | Tangent |
| Answer» D. Tangent | |
| 1322. |
Which one of the following is not an advantage of spiral transition? |
| A. | Easy path for drivers to follow |
| B. | Aesthetics |
| C. | Agreeable arrangement of superelevation runoff |
| D. | Less delay |
| Answer» E. | |
| 1323. |
Length of the transition curve is the maximum of length due to _____ |
| A. | centrifugal force, superelevation, and empirical |
| B. | centrifugal force, superelevation, and tangent |
| C. | superelevation, centripetal, and empirical |
| D. | superelevation, centripetal, and design speed |
| Answer» B. centrifugal force, superelevation, and tangent | |
| 1324. |
In how many stages does the transition from a tangent section to super-elevated horizontal curve takes place? |
| A. | 3 |
| B. | 2 |
| C. | 4 |
| D. | 5 |
| Answer» C. 4 | |
| 1325. |
The value of side-friction factor varies with ______ |
| A. | design speed |
| B. | superelevation |
| C. | skidding |
| D. | overturning |
| Answer» B. superelevation | |
| 1326. |
What is the maximum superelevation in snowy areas? |
| A. | 5% |
| B. | 6% |
| C. | 3% |
| D. | 8% |
| Answer» E. | |
| 1327. |
What is the maximum side slope of cut and fill section where sandy soil is predominant? |
| A. | 1:2 |
| B. | 3:1 |
| C. | 6:1 |
| D. | 10:1 |
| Answer» D. 10:1 | |
| 1328. |
If the degree of curvature is higher then the curve is ______ |
| A. | sharper |
| B. | flatter |
| C. | vertical |
| D. | elliptical |
| Answer» B. flatter | |
| 1329. |
A Spiral transition curve has a varying radius. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1330. |
What do you mean by the splitting point? |
| A. | The two streams split with different composition |
| B. | The two streams split with equal composition |
| C. | Assuming it’s not a reactor and there’s only 2 streams |
| D. | Assuming it’s not a reactor and there’s only 1 stream |
| Answer» C. Assuming it’s not a reactor and there’s only 2 streams | |
| 1331. |
The fresh feed to an ammonia synthesis reactor contains nitrogen, hydrogen and 2.0 mole per cent inerts. The molar ratio of H2:N2 is 3:1. The product stream consists of pure ammonia. Since conversion in the reactor is only 15%, a recycle stream is used and in order to avoid build-up of inerts, a purge stream is withdrawn. The rate of purge stream is adjusted to keep inert concentration in the recycle stream at 8 mole per cent. For a fresh feed rate of 100 moles/hr. Note that recycle stream contains only nitrogen, hydrogen and inerts. The N2:H2 ratio of 1:3 is maintained in every process stream, and calculate the number of moles, moles of inerts and moles of hydrogen in the recycle stream? |
| A. | 437 moles/hr, 35 moles/hr, 301.5 moles/hr |
| B. | 237 moles/hr, 30 moles/hr, 200 moles/hr |
| C. | 567 moles/hr, 35 moles/hr, 205 moles/hr |
| D. | 347 moles/hr, 30 moles/hr, 500 moles/hr |
| Answer» B. 237 moles/hr, 30 moles/hr, 200 moles/hr | |
| 1332. |
The fresh feed to an ammonia synthesis reactor contains nitrogen, hydrogen and 2.0 mole per cent inerts. The molar ratio of H2:N2 is 3:1. The product stream consists of pure ammonia. Since conversion in the reactor is only 15%, a recycle stream is used and in order to avoid build-up of inerts, a purge stream is withdrawn. The rate of purge stream is adjusted to keep inert concentration in the recycle stream at 8 mole per cent. For a fresh feed rate of 100 moles/hr. Note that recycle stream contains only nitrogen, hydrogen and inerts. The N2:H2 ratio of 1:3 is maintained in every process stream, and calculate the moles of nitrogen entering the reactor and in the recycle stream? |
| A. | 125 moles/hr, 100.50 moles |
| B. | 135 moles/hr, 50 moles |
| C. | 125 moles/hr, 50 moles |
| D. | 185 moles/hr, 100.50 moles |
| Answer» B. 135 moles/hr, 50 moles | |
| 1333. |
A solution of potassium dichromate in water contains 15% w/w Kr2Cr2O7. Calculate the amount of Kr2Cr2O7 that can be produced from 1500 kg of solution if 700 kg of water is evaporated and remaining solution is cooled to 293K.Data: Solubility of Kr2Cr2O7 at 293 K is 115 kg per 1000 kg of water. |
| A. | 158.875 kg |
| B. | 156.678 kg |
| C. | 145.478 kg |
| D. | 148.875 kg |
| Answer» B. 156.678 kg | |
| 1334. |
A single effect evaporator is fed with 10000 kg / h of weak liquor containing 15 % caustic by weight and is concentrated to get thick liquor containing 40 % by weight caustic. Calculate:(i) kg / h of water evaporated and(ii) kg / h of thick liquor |
| A. | 4560 kg/h, 3720 kg/h |
| B. | 3460 kg/h, 7680 kg/h |
| C. | 4350 kg/h, 6732 kg/h |
| D. | 6250 kg/h, 3750 kg/h |
| Answer» E. | |
| 1335. |
Consider the following labeled flowchart for a simple chemical process based on reaction A -> B and predict the overall and single-pass conversion of the process? |
| A. | 100%, 70% |
| B. | 100%, 50% |
| C. | 100%, 75% |
| D. | 100%, 55% |
| Answer» D. 100%, 55% | |
| 1336. |
Which of the following represents the figure corresponding to the stream? |
| A. | Recycle system |
| B. | By-pass system |
| C. | Purge system |
| D. | Recover stream |
| Answer» C. Purge system | |
| 1337. |
Of the following values, between which values traverse speed will range? |
| A. | 0.1 to 5 m/min |
| B. | 5 to 100 m/min |
| C. | 100 to 500 m/min |
| D. | 500 to 1000 m/min |
| Answer» C. 100 to 500 m/min | |
| 1338. |
Impact angle in Abrasive water jet machining range between which of the following values? |
| A. | 0° to 10° |
| B. | 10° to 30° |
| C. | 30° to 90° |
| D. | 90° to 100° |
| Answer» D. 90° to 100° | |
| 1339. |
What is the value of stand-off distance in Abrasive water jet machining? |
| A. | 1.0 – 2.0 mm |
| B. | 2.0 – 4.0 mm |
| C. | 4.0 – 6.0 mm |
| D. | 6.0 – 10.0 mm |
| Answer» B. 2.0 – 4.0 mm | |
| 1340. |
State whether the following statement is true or false about Abrasive water jet machining.“A material, whose material removal rate is higher, produces larger surface roughness.” |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1341. |
Which of the following is not a process parameter of Abrasive water jet machining? |
| A. | Frequency of vibration |
| B. | Orifice diameter |
| C. | Pressure |
| D. | Stand-off distance |
| Answer» B. Orifice diameter | |
| 1342. |
A vector can always have_____________ |
| A. | Only one component along any of the axis |
| B. | Only two components along any of the axis |
| C. | Only three components along any of the axis |
| D. | A unit vector along the direction perpendicular to its direction |
| Answer» D. A unit vector along the direction perpendicular to its direction | |
| 1343. |
Which is true for the vector provided the only position coordinates given? |
| A. | (Final position coordinates + initial positions coordinates) gives the vector form of the vector |
| B. | (Final position coordinates – initial positions coordinates) gives the vector form of the vector |
| C. | (Initial positions coordinates – Final position coordinates) gives the vector form of the vector |
| D. | (Initial positions coordinates + Final position coordinates) gives the vector form of the vector |
| Answer» C. (Initial positions coordinates – Final position coordinates) gives the vector form of the vector | |
| 1344. |
Three vectors emerging from a point are always in a single plane. |
| A. | True |
| B. | False |
| Answer» C. | |
| 1345. |
Two vectors emerging from a point are always in a single plane. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1346. |
The value cos-1(-3/7) + cos-1(2/7) + cos-1(6/7) is ____________ |
| A. | 215.4˚ |
| B. | 273.4˚ |
| C. | 188.4˚ |
| D. | 219.4˚ |
| Answer» E. | |
| 1347. |
A force vector is along 4i – 4k direction and has a magnitude 100N and another force vector is along 4i +2j -4k and has a magnitude of 120N. What is the resultant of both forces? |
| A. | 80i + 40j – 80k N |
| B. | 80i – 40j – 80k N |
| C. | 151i + 40j – 80k N |
| D. | 151i+ 40j – 151k N |
| Answer» E. | |
| 1348. |
What is the magnitude of the vector, 12i – 8j – 24k? |
| A. | 18 |
| B. | 28 |
| C. | 38 |
| D. | 48 |
| Answer» C. 38 | |
| 1349. |
In the figure given below, calculate the value of cosγ. (γ is the angle made by the resultant vector and the z-axis) |
| A. | 0.866 |
| B. | -0.354 |
| C. | 0.540 |
| D. | 0.354View Answer |
| Answer» B. -0.354 | |
| 1350. |
In the figure given below, with F1 = 60j + 80k and F2= 50i -100j + 100k, what is the value of β? (β is the angle made by the resultant vector with the y-axis ) |
| A. | 76˚ |
| B. | 102˚ |
| C. | 19˚ |
| D. | 130˚ |
| Answer» C. 19˚ | |