MCQOPTIONS
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MCQOPTIONS
This section includes 2114 Mcqs, each offering curated multiple-choice questions to sharpen your Unit Processes knowledge and support exam preparation. Choose a topic below to get started.
| 651. |
Find the correct relation between current density and magnetization. |
| A. | J = Grad(M) |
| B. | J = Div(M) |
| C. | J = Curl(M) |
| D. | M = Curl(J) |
| Answer» D. M = Curl(J) | |
| 652. |
The rules that give meaning to the instructions. |
| A. | Semantics |
| B. | Syntax |
| C. | Code |
| D. | Cases |
| Answer» B. Syntax | |
| 653. |
A program that reads each of the instructions in mnemonic form and translates it into the machine-language equivalent. |
| A. | Machine language |
| B. | Assembler |
| C. | Interpreter |
| D. | C program |
| Answer» C. Interpreter | |
| 654. |
The language made up of binary coded instructions. |
| A. | Machine |
| B. | C |
| C. | BASIC |
| D. | High level |
| Answer» B. C | |
| 655. |
Hand consolidation or compaction is done in pavements that cater to the low volume of traffic. |
| A. | True |
| B. | False |
| Answer» C. | |
| 656. |
Which of the below is an advantage of using the alternate bay method? |
| A. | Less construction cost |
| B. | Easy joint construction |
| C. | Good drainage characteristics |
| D. | Less disruption of traffic |
| Answer» C. Good drainage characteristics | |
| 657. |
A fibre brush is used to make broom marks on the surface of the pavement. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 658. |
In cement grouted layer, the ratio of cement to sand is taken in the range of ______ |
| A. | 1:1.5 to 1:2.5 |
| B. | 1:2 to 1:2.5 |
| C. | 1:1.5 to 1:2 |
| D. | 1:1 to 1:2 |
| Answer» B. 1:2 to 1:2.5 | |
| 659. |
Which of the below methods is not used as an initial curing method? |
| A. | Soil berm |
| B. | Cotton |
| C. | Jute |
| D. | Burlap |
| Answer» B. Cotton | |
| 660. |
Which of the below is not a tool used for finishing works? |
| A. | Internal vibrator |
| B. | Float |
| C. | Belt |
| D. | Straight edge |
| Answer» B. Float | |
| 661. |
Which type of steel forms are used for the placing of concrete? |
| A. | MS angle |
| B. | MS channel |
| C. | MS plates |
| D. | MS I |
| Answer» C. MS plates | |
| 662. |
What is the recommended thickness of the separation layer that is to be provided between slab and DLC? |
| A. | Maximum thickness of 125 micron polythene |
| B. | Maximum thickness of 125 mm polythene |
| C. | Minimum thickness of 125 micron polythene |
| D. | Minimum thickness of 125 mm polythene |
| Answer» D. Minimum thickness of 125 mm polythene | |
| 663. |
Cement grouted and rolled concrete are suitable for which course? |
| A. | Surface |
| B. | Base |
| C. | Sub-base |
| D. | Binder |
| Answer» C. Sub-base | |
| 664. |
What is a concrete mix partially mixed in a plant and a mixer called? |
| A. | Transit mix |
| B. | Partial mix |
| C. | Shrink mix |
| D. | Semi mix |
| Answer» D. Semi mix | |
| 665. |
Which of the following is the disadvantage of ICP mass spectroscopy? |
| A. | Incapable of multi-element analysis |
| B. | Less sensitivity |
| C. | Impossible to obtain isotopic information |
| D. | Not useful for detection of non-metals |
| Answer» E. | |
| 666. |
Which of the following is the most accurate method of determination of elemental composition? |
| A. | Spectroscopy |
| B. | Isotope dilution |
| C. | Isobar dilution |
| D. | Chromatography |
| Answer» C. Isobar dilution | |
| 667. |
The most common type of ion detector found in ICP system is which of the following? |
| A. | Faraday cup collector |
| B. | Channeltron |
| C. | Micro-channel plate |
| D. | Flame ionization detector |
| Answer» C. Micro-channel plate | |
| 668. |
Double focussing section analysers offer better resolution than ICP spectrometry system. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 669. |
ICP spectrometer is a sequential multi-element analyser that has scan times less than ____ for one sweep. |
| A. | 10ms |
| B. | 20ms |
| C. | 50ms |
| D. | 100ms |
| Answer» C. 50ms | |
| 670. |
Liquid samples are introduced into the ICP spectrometer using which of the following? |
| A. | Nebulizer |
| B. | Curvette having glass windows |
| C. | Probe |
| D. | Laser ablation system |
| Answer» B. Curvette having glass windows | |
| 671. |
ICP’s principle is similar to which of the following? |
| A. | Flame emission spectroscopy |
| B. | Fourier transforms spectroscopy |
| C. | Atomic emission spectroscopy |
| D. | Absorption spectroscopy |
| Answer» D. Absorption spectroscopy | |
| 672. |
If qw =2500x where x is in m and in the direction of flow (x=0 at the inlet), the bulk mean temperature of the water leaving the pipe in °C is ________ |
| A. | 71 |
| B. | 76 |
| C. | 79 |
| D. | 81 |
| Answer» E. | |
| 673. |
Water (Prandtl number ≈6) flows over a flat plate which is heated over the entire length. Which one of the following relationship between the hydrodynamic boundary layer thickness (δ) and the thermal boundary layer thickness (δ)t is true? |
| A. | (δ)t > δ |
| B. | (δ)t < δ |
| C. | (δ)t = δ |
| D. | Cannot be predicted |
| Answer» C. (δ)t = δ | |
| 674. |
For a fluid with Prandtl number Pr>1, momentum boundary layer thickness? |
| A. | Decreases rapidly compared to the thermal boundary layer thickness |
| B. | And thermal boundary layer thickness increase at the same rate |
| C. | Increases rapidly as compared to thermal boundary layer thickness |
| D. | And thermal boundary layer thickness decrease at the same rate |
| Answer» D. And thermal boundary layer thickness decrease at the same rate | |
| 675. |
In laminar developing flow through a pipe with constant wall temperature, the magnitude of the pipe wall inner surface convective heat transfer coefficient shall be maximum at the: |
| A. | Middle length of flow |
| B. | Beginning of flow |
| C. | End of flow |
| D. | One third of the length of flow |
| Answer» E. | |
| 676. |
The characteristic length for computing Grashoff number of horizontal cylinder is ___________ |
| A. | The length of the cylinder |
| B. | The diameter of the cylinder |
| C. | The perimeter of the cylinder |
| D. | The radius of the cylinder |
| Answer» C. The perimeter of the cylinder | |
| 677. |
The laminar boundary layer occurs when a cold fluid over a hot plate. In which of the following positions, the temperature gradient assumes zero value? |
| A. | At bottom of boundary layer |
| B. | In mid free stream of fluid |
| C. | At top of boundary layer |
| D. | At the junction of laminar and turbulent boundary layer |
| Answer» D. At the junction of laminar and turbulent boundary layer | |
| 678. |
Which non-dimensional numbers relates the thermal boundary layer and hydrodynamic boundary layer? |
| A. | Rayleigh number |
| B. | Peclet number |
| C. | Grashoff number |
| D. | Prandtl number |
| Answer» E. | |
| 679. |
Which of the following non-dimensional numbers is used for transition from laminar flow to turbulent flow in the free convection? |
| A. | Reynolds number |
| B. | Grashoff number |
| C. | Peclet number |
| D. | Rayleigh number |
| Answer» C. Peclet number | |
| 680. |
Nusselt number for fully developed turbulent flow in a pipe is given by Nu=C Rea Prb. the values of a and b are? |
| A. | a=0.5 and b=0.33 for heating and cooling |
| B. | a=0.5 and b=0.4 for heating and b=0.3 for cooling |
| C. | a=0.8 and b=0.4 for heating and b=0.3 for cooling |
| D. | a=0.8 and b=0.3 for heating and b=0.4 for cooling |
| Answer» D. a=0.8 and b=0.3 for heating and b=0.4 for cooling | |
| 681. |
Hot air at 50°C. If the forced heat transfer convection is 75 W/m2K, the heat gain rate gain rate by the plate through an area of 2m2 will be _____ |
| A. | 15KW |
| B. | 22.5KJ/sec |
| C. | 7.5KJ/sec |
| D. | 25KJ/sec |
| Answer» B. 22.5KJ/sec | |
| 682. |
Check lines should form well-conditioned triangles to obtain a good system of survey lines. |
| A. | True |
| B. | False |
| Answer» C. | |
| 683. |
As far as possible, the main survey line should not pass through _____ |
| A. | Road |
| B. | Check line |
| C. | Obstacles |
| D. | Tie line |
| Answer» D. Tie line | |
| 684. |
Each triangle or portion of a skeleton must be provided with sufficient tie lines to obtain good system of lines. |
| A. | True |
| B. | False |
| Answer» C. | |
| 685. |
A line which joins subsidiary stations on the main line is called _____ |
| A. | Tie line |
| B. | Survey lines |
| C. | Base lines |
| D. | Check lines |
| Answer» B. Survey lines | |
| 686. |
Conjugate gradient algorithm can be accelerated by using _________ |
| A. | Algorithm strategies |
| B. | Preconditioning strategies |
| C. | Conditioning strategies |
| D. | Computer strategies |
| Answer» C. Conditioning strategies | |
| 687. |
Conjugate gradient method includes several ______ |
| A. | Computer codes |
| B. | Programs |
| C. | Algorithms |
| D. | Matrices |
| Answer» B. Programs | |
| 688. |
Conjugate gradient method is implemented in _________ |
| A. | Algorithm solving |
| B. | Iterative solving |
| C. | Program solving |
| D. | Program CG solving |
| Answer» E. | |
| 689. |
This method is robust and has ________ n iterations. |
| A. | Diverges |
| B. | Converges |
| C. | Converge and diverge |
| D. | Symmetric |
| Answer» C. Converge and diverge | |
| 690. |
The iterations are continued until gkTgx reaches a ________ (here k=0 1 2 3……) |
| A. | Small value |
| B. | Infinite value |
| C. | Large value |
| D. | Negative value |
| Answer» B. Infinite value | |
| 691. |
Which version is used to solve conjugate gradient method of the algorithm of symmetric matrices? |
| A. | Rayleighs version |
| B. | Fletcher-Reeves version |
| C. | Frontal method |
| D. | Galerkins method |
| Answer» C. Frontal method | |
| 692. |
Conjugate gradient method is for only _________ |
| A. | Non symmetric matrix |
| B. | Symmetric matrix |
| C. | Symmetric and Non symmetric matrix |
| D. | Identity matrix |
| Answer» C. Symmetric and Non symmetric matrix | |
| 693. |
Conjugate gradient method is a ________ |
| A. | Standard method |
| B. | Equation method |
| C. | Iterative method |
| D. | Elimination method |
| Answer» D. Elimination method | |
| 694. |
What is the maximum temperature required in a compression molding process? |
| A. | 240°C |
| B. | 245°C |
| C. | 250°C |
| D. | 255°C |
| Answer» D. 255°C | |
| 695. |
Determine the normal force of the beam shown. |
| A. | 0N |
| B. | 50N |
| C. | 40N |
| D. | 45N |
| Answer» B. 50N | |
| 696. |
The equation of change in moment equals the area under the shear diagram is not applied when? |
| A. | Rotational moment |
| B. | Bending moment |
| C. | Total weight |
| D. | A concentrated force acts |
| Answer» E. | |
| 697. |
The shear diagram will jump upwards if there is __________ |
| A. | Rotational moment |
| B. | Bending moment |
| C. | Total weight |
| D. | Change in shear is positive |
| Answer» E. | |
| 698. |
Determine the shear force of the beam shown. |
| A. | 450N |
| B. | 50N |
| C. | 40N |
| D. | 45N |
| Answer» B. 50N | |
| 699. |
In the making of the shear force diagram or the bending moment diagrams, one method is used, distributed load. In this the distributed load will be considered positive if ____________ |
| A. | Loading acts upward |
| B. | Loading acts downward |
| C. | Loading acts rightward |
| D. | Loading acts leftward |
| Answer» B. Loading acts downward | |
| 700. |
The change in moment is equal to _________ |
| A. | Rotational moment |
| B. | Bending moment |
| C. | Total weight |
| D. | Area under the shear diagram |
| Answer» E. | |