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.
| 351. |
Ferrostan process is halogen process in differential tinplating. |
| A. | True |
| B. | False |
| Answer» C. | |
| 352. |
The method of making tinplate by electroplating is also known as ________ |
| A. | selective tinplating |
| B. | uniform tinplating |
| C. | bilayer tinplating |
| D. | differential tinplating |
| Answer» E. | |
| 353. |
Tinplating is the method of depositing tin on steel. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 354. |
Softer strength steels are used for drawn. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 355. |
Additives can be added in a lubricant to enhance its performance during metal forming operations. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 356. |
Semi-synthetic fluid is a type of lubricant which is generally insoluble in water. |
| A. | True |
| B. | False |
| Answer» C. | |
| 357. |
The lubrication is not required when the formability of material is sufficiently large in metal forming. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 358. |
The main function of the lubricant is to reduce the tensile or compressive stresses required in metal forming. |
| A. | True |
| B. | False |
| Answer» C. | |
| 359. |
Which path of the components in wire EDM determines the path to be machined? |
| A. | Horizontal worktable movement |
| B. | Vertical worktable movement |
| C. | Horizontal & Vertical worktable movement |
| D. | None of the mentioned |
| Answer» B. Vertical worktable movement | |
| 360. |
Wire EDM is a special form of Electro discharge machining which contains __________ electrode. |
| A. | Continuously moving |
| B. | Periodically moving |
| C. | Discontinuously moving |
| D. | All of the mentioned |
| Answer» B. Periodically moving | |
| 361. |
Which of the following are the steps included in the die sinking process of EDM? |
| A. | CAD of electrode |
| B. | Electrode manufacturing |
| C. | Programming for die sinking |
| D. | All of the mentioned |
| Answer» E. | |
| 362. |
State whether the following statement is true or false regarding the applications of EDM.“In EDM, milling process can machine complex shapes with sharp corners.” |
| A. | True |
| B. | False |
| Answer» C. | |
| 363. |
If the annular wheel of an epicyclic gear train has 100 teeth and the planet wheel has 20 teeth, the number of teeth on sun wheel is |
| A. | 80 |
| B. | 60 |
| C. | 40 |
| D. | 20 |
| Answer» C. 40 | |
| 364. |
When two spur gears having involute profiles on their teeth engage, the line of action is tangential to the |
| A. | pitch circles |
| B. | dedendum circles |
| C. | addendum circles |
| D. | base circles |
| Answer» B. dedendum circles | |
| 365. |
In a reverted gear train, two gears P and Q are meshing, Q-R is a compound gear, and R and S are meshing. The modules of P and R are 4 mm and 5 mm respectively. The numbers of teeth in P, Q and r are 20, 40 and 25 respectively. The number of teeth in S is |
| A. | 23 |
| B. | 35 |
| C. | 50 |
| D. | 53 |
| Answer» B. 35 | |
| 366. |
Consider the following modifications regarding avoiding the interference between gears:1. The centre distance between meshing gears be increased2. Addendum of the gear be modified3. Teeth should be undercut slightly at the root4. Pressure angle should be increased5. Circular pitch be increasedWhich of these are effective in avoiding interference? |
| A. | 1,2 and 3 |
| B. | 2,3,4 and 5 |
| C. | 1,4 and 5 |
| D. | 3,4 and 5 |
| Answer» B. 2,3,4 and 5 | |
| 367. |
An involute rack with 200 pressure angle meshes with a pinion of 14.50 pressure angle. |
| A. | True |
| B. | False |
| Answer» C. | |
| 368. |
Consider the following statements:A 200 stub tooth system is generally preferred in spur gears as it results in1. stronger teeth2. lesser number of teeth on the pinion3. lesser chances of surface fatigue failure4. reduction of interferenceWhich of the above statements are correct? |
| A. | 1,2 and 4 |
| B. | 3 and 4 |
| C. | 1 and 3 |
| D. | 1,2,3 and 4 |
| Answer» B. 3 and 4 | |
| 369. |
The dynamic load on a gear is due to1. inaccurancies of tooth spacing2. irregularities in tooth profile3. deflection of the teeth under load4. type of serviceWhich of the above statements are correct? |
| A. | 1,2 and 3 |
| B. | 2,3 and 4 |
| C. | 1,3 and 4 |
| D. | 1,2 and 4 |
| Answer» B. 2,3 and 4 | |
| 370. |
Consider the following statements in case of reverted gear train:1. The direction of rotation of the first and the last gear is the same.2. the direction of rotation of the first and the last gear is opposite.3. The first and the last gears are on the same shaft.4. The first and the last gears are on separate but co-axial shafts.Which of these statements is/are correct? |
| A. | 1 and 3 |
| B. | 2 and 3 |
| C. | 2 and 4 |
| D. | 4 alone |
| Answer» E. | |
| 371. |
A side and face cutter 125 mm diameter has 10 teeth. It operates at a cutting speed of 14 m/min with a table traverse 100 mm/min. The feed per tooth of the cutter is |
| A. | 10 mm |
| B. | 2.86 mm |
| C. | 0.286 mm |
| D. | 0.8 mm |
| Answer» D. 0.8 mm | |
| 372. |
From the following data, calculate the static deflection in mm.Shaft diameter = 5mmlength = 200mmMass of disc = 100Kg at centre of shaftE = 100GN/m2Centre of disc at 0.25m away from centre of axis of shaft. |
| A. | 4.32 |
| B. | 9.64 |
| C. | 10.64 |
| D. | 11.64 |
| Answer» B. 9.64 | |
| 373. |
A shaft supported in ball bearings is assumed to be a simply supported. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 374. |
If the static deflection is 1.665×10-3m, calculate the critical speed of the shaft in rps.Centre of disc at 0.25m away from centre of axis of shaft. |
| A. | 8.64 |
| B. | 9.64 |
| C. | 10.64 |
| D. | 12.2 |
| Answer» E. | |
| 375. |
From the following data, calculate the static deflection in mm.Critical speed = 8.64 rpsMass of disc = 100Kg at centre of shaftE = 100GN/m2Centre of disc at 0.25m away from centre of axis of shaft. |
| A. | 3.32 |
| B. | 9.64 |
| C. | 10.64 |
| D. | 11.64 |
| Answer» B. 9.64 | |
| 376. |
From the following data, calculate the critical speed of the shaft in rps.Shaft diameter = 5mmlength = 200mmMass of disc = 50Kg at centre of shaftE = 200GN/m2Centre of disc at 0.25m away from centre of axis of shaft. |
| A. | 8.64 |
| B. | 9.64 |
| C. | 10.64 |
| D. | 11.64 |
| Answer» B. 9.64 | |
| 377. |
The speed at which the shaft runs so that the additional deflection from the axis of rotation of the shaft becomes infinite, is known as _________ |
| A. | Whirling speed |
| B. | Rotational speed |
| C. | Stabilizing speed |
| D. | Reciprocating speed |
| Answer» B. Rotational speed | |
| 378. |
When the centre of gravity of the rotor lies between the centre line of the shaft and the centre line of the bearing, e is taken positive. |
| A. | True |
| B. | False |
| Answer» C. | |
| 379. |
Assuming the shaft to be freely supported. Calculate the whirling speed of the shaft : 2 cm diameter and 60 cm long carrying a mass of 1 kg at its mid-point. The density of the shaft material is 40 Mg/m3, and Young’s modulus is 200 GN/m2. |
| A. | 2598 |
| B. | 2434 |
| C. | 2756 |
| D. | 2634 |
| Answer» B. 2434 | |
| 380. |
Near field scanning method provides a rapid method for acquiring the refractive index profile. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 381. |
________________ method is used to measure the nonlinear refractive index of the silica fiber. |
| A. | Grating |
| B. | Non-linear |
| C. | Silica-refraction |
| D. | IGA |
| Answer» E. | |
| 382. |
The detailed knowledge of the refractive index profile predicts the __________ of the fiber. |
| A. | Nodal response |
| B. | Variation in frequency |
| C. | Impulse response |
| D. | Amplitude |
| Answer» D. Amplitude | |
| 383. |
The scatter between the fatigue life data for different samples ____________ with increase in the stress value. |
| A. | increases |
| B. | decreases |
| C. | remains constant |
| D. | no relation |
| Answer» C. remains constant | |
| 384. |
In the given S-N cycle, there are four different samples tested for different stress values. Among given sample, the highest probability of the failure is for __________ sample. |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» E. | |
| 385. |
Among the given mechanical test, the highest number of samples are required in __________ |
| A. | tensile test |
| B. | torsion test |
| C. | fatigue test for S-N curve |
| D. | fatigue test for probabilistic analysis |
| Answer» E. | |
| 386. |
The fatigue limit of the material is considered after ___________ cycles. |
| A. | 105 |
| B. | 5*105 |
| C. | 108 |
| D. | 100 |
| Answer» D. 100 | |
| 387. |
The high cycle fatigue is described by the Basquin equation. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 388. |
Which of the following material does not show endurance limit? |
| A. | Mild Steel |
| B. | Cast iron |
| C. | Titanium |
| D. | Aluminum |
| Answer» E. | |
| 389. |
A low cycle fatigue consists of typically ________ cycles. |
| A. | 10 cycles |
| B. | 102 cycles |
| C. | less than 105 cycles |
| D. | more than 108 cycles |
| Answer» D. more than 108 cycles | |
| 390. |
In the given S-N curve, which of the following is showing endurance limit? |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 391. |
The S-N curve is the plot between the Stress and the number of cycle to failure and both are plotted in the log-log scale. |
| A. | True |
| B. | False |
| Answer» C. | |
| 392. |
The basic fatigue data is plotted in the form of ___________ |
| A. | Pourbaix diagram |
| B. | Ellingham diagram |
| C. | S-N Curve |
| D. | P-T curve |
| Answer» D. P-T curve | |
| 393. |
The expansion cost of FMS (Flexible manufacturing system) is less. |
| A. | True |
| B. | False |
| Answer» C. | |
| 394. |
Which does SMC stand for with respect to machine related manufacturing? |
| A. | Single machine control |
| B. | Singular machine control |
| C. | Slot machine cell |
| D. | Single machine cell |
| Answer» E. | |
| 395. |
FMS (Flexible manufacturing system) is not suitable if production quantity is less. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 396. |
FMS (Flexible manufacturing system) consist of a single machine that controls everything. |
| A. | True |
| B. | False |
| Answer» C. | |
| 397. |
Which work cannot be done by Jerome H. Lemelson’s first robot based system? |
| A. | Manufacturing product |
| B. | Welding |
| C. | Inspecting the product |
| D. | Convey the product |
| Answer» B. Welding | |
| 398. |
Which development board uses energia IDE (Integrated development environment) for its programming? |
| A. | MSP430G2ET Launchpad |
| B. | Arduino UNO |
| C. | Arduino nano |
| D. | NodeMCU |
| Answer» B. Arduino UNO | |
| 399. |
What happens to labour workforce when FMS (Flexible manufacturing system) concept is used? |
| A. | Increases |
| B. | Decreases |
| C. | Remains same |
| D. | Gradually increases with time |
| Answer» C. Remains same | |
| 400. |
Which is not a property of FMS (Flexible manufacturing system)? |
| A. | High accuracy |
| B. | Less production cost |
| C. | Less initial cost |
| D. | Flexibility in production |
| Answer» D. Flexibility in production | |