MCQOPTIONS
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MCQOPTIONS
This section includes 4791 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 2801. |
Side relief angle of a single point tool is the angle |
| A. | by which the face of the tool is inclined towards back |
| B. | by which the face of the tool is inclined sideways |
| C. | between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of tool |
| D. | between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base |
| Answer» D. between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base | |
| 2802. |
Hydrogen is the __________ substance. |
| A. | lightest |
| B. | heaviest |
| Answer» B. heaviest | |
| 2803. |
Producer gas is obtained by |
| A. | partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast |
| B. | carbonisation of bituminous coal |
| C. | passing steam over incandescent coke |
| D. | passing air and a large amount of steam over waste coal at about 650 C |
| Answer» B. carbonisation of bituminous coal | |
| 2804. |
A taper tap has |
| A. | its end tapered for about three or four threads |
| B. | its end tapered for about eight or ten threads |
| C. | full threads for the whole of its length |
| D. | none of the above |
| Answer» C. full threads for the whole of its length | |
| 2805. |
In hot machining, solid carbide tools are preferred over high speed steel tools. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2806. |
In machining soft materials, a tool with negative relief angle is used. |
| A. | Correct |
| B. | Incorrect |
| Answer» B. Incorrect | |
| 2807. |
Which of the following parameters influence the axial feed rate in centreless grinding? |
| A. | Regulating wheel diameter |
| B. | Speed of the regulating wheel |
| C. | Angle between the axes of grinding and regulating wheels |
| D. | all of the above |
| Answer» E. | |
| 2808. |
A dense structure of a grinding wheel is denoted by the number 9 to 15 or higher. |
| A. | Yes |
| B. | No |
| Answer» C. | |
| 2809. |
For softer materials, the point angle of the drill is kept |
| A. | equal to 118 |
| B. | less than 118 |
| C. | more than 118 |
| D. | any one of these |
| Answer» C. more than 118 | |
| 2810. |
The type of reamer used for reaming operation in a blind hole, is |
| A. | straight fluted reamer |
| B. | left hand spiral fluted reamer |
| C. | right hand spiral fluted reamer |
| D. | any one of these |
| Answer» D. any one of these | |
| 2811. |
In a single point tool, the angle between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base, is known as |
| A. | side relief angle |
| B. | end relief angle |
| C. | back rake angle |
| D. | side rake angle |
| Answer» C. back rake angle | |
| 2812. |
A set of eight form relieved milling cutters for each module is provided to enable cutting of gears of different |
| A. | materials |
| B. | types of gears |
| C. | number of teeth |
| D. | width of gears |
| Answer» D. width of gears | |
| 2813. |
The grinding operaion is a |
| A. | shaping operation |
| B. | forming operation |
| C. | surface finishing operation |
| D. | dressing operation |
| Answer» D. dressing operation | |
| 2814. |
The lathe spindles are usually made hollow and provided with |
| A. | internal taper |
| B. | external taper |
| C. | internal and external taper |
| D. | no taper |
| Answer» B. external taper | |
| 2815. |
Otto cycle is also known as |
| A. | constant pressure cycle |
| B. | constant volume cycle |
| C. | constant temperature cycle |
| D. | constant temperature and pressure cycle |
| Answer» C. constant temperature cycle | |
| 2816. |
The compression ratio for Diesel engines is |
| A. | 3 to 6 |
| B. | 5 to 8 |
| C. | 15 to 20 |
| D. | 20 to 30 |
| Answer» D. 20 to 30 | |
| 2817. |
The type of tool used on milling machine and broaching machine is |
| A. | single point cutting tool |
| B. | two point cutting tool |
| C. | three point cutting tool |
| D. | multi-point cutting tool |
| Answer» E. | |
| 2818. |
If the shear angle is large and the chip-tool contact area is low, then the tool life will be more. |
| A. | Correct |
| B. | Incorrect |
| Answer» B. Incorrect | |
| 2819. |
The carbide tools operating at very low cutting speeds (below 30 m/min) |
| A. | reduces tool life |
| B. | increases tool life |
| C. | have no effect on tool life |
| D. | spoils the work piece |
| Answer» B. increases tool life | |
| 2820. |
In oblique cutting of metals, the cutting edge of the tool is |
| A. | perpendicular to the workpiece |
| B. | perpendicular to the direction of tool travel |
| C. | parallel to the direction of tool travel |
| D. | inclined at an angle less than 90 to the direction of tool travel |
| Answer» E. | |
| 2821. |
The efficiency of a dual combustion cycle __________ upon cut-off ratio. |
| A. | depends |
| B. | does not depend |
| Answer» B. does not depend | |
| 2822. |
Which of the following statement is correct for oblique cutting system? |
| A. | The cutting edge is inclined at an angle less than 90 with the normal to the velocity of the tool. |
| B. | Frequently, more than one cutting edges are in action. |
| C. | The chip flows on the tool face at an angle less than 90 with the normal on the cutting edge. |
| D. | all of the above |
| Answer» E. | |
| 2823. |
Cutting fluid has no effect on the tool life. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2824. |
A single point tool has |
| A. | rake angle |
| B. | cutting angle |
| C. | lip angle |
| D. | all of these |
| Answer» E. | |
| 2825. |
When the tool moves parallel to the lathe axis, the movement is termed as |
| A. | cross feed |
| B. | angular feed |
| C. | longitudinal feed |
| D. | any one of these |
| Answer» D. any one of these | |
| 2826. |
In drilling operation, the metal is removed by |
| A. | shearing |
| B. | extrusion |
| C. | shearing and extrusion |
| D. | shearing and compression |
| Answer» D. shearing and compression | |
| 2827. |
In the relation VTn = C, the value of n for ceramic tools is |
| A. | 0.1 to 0.2 |
| B. | 0.20 to 0.25 |
| C. | 0.25 to 0.40 |
| D. | 0.40 to 0.55 |
| Answer» E. | |
| 2828. |
Gears can be best produced on mass production by |
| A. | shaping |
| B. | casting |
| C. | forming |
| D. | hobbing |
| Answer» E. | |
| 2829. |
In a plain milling machine, the table can be moved |
| A. | longitudinally |
| B. | crosswise |
| C. | vertically |
| D. | all of these |
| Answer» E. | |
| 2830. |
The chisel edge angle of a drill is usually 120 to 135 . |
| A. | Correct |
| B. | Incorrect |
| Answer» B. Incorrect | |
| 2831. |
The cutting speed of a drill varies from point to point on the cutting edge of the drill. |
| A. | Correct |
| B. | Incorrect |
| Answer» B. Incorrect | |
| 2832. |
Carbide tipped tools usually have |
| A. | negative rake angle |
| B. | positive rake angle |
| C. | any rake angle |
| D. | no rake angle |
| Answer» B. positive rake angle | |
| 2833. |
Gear burnishing is a process for |
| A. | surface finishing |
| B. | under-cut gears |
| C. | cycloidal gears |
| D. | removing residual stresses from teeth roots |
| Answer» B. under-cut gears | |
| 2834. |
The continuous chips are in the form of long coils having the same thickness throughout. |
| A. | Agree |
| B. | Disagree |
| Answer» B. Disagree | |
| 2835. |
The saw milling is an operation of |
| A. | producing grooves around the periphery of a cylindrical or conical workpiece |
| B. | producing narrow slots or grooves on a workpiece |
| C. | reproduction of an outline of a template on a workpiece |
| D. | machining several surfaces of a workpiece simultaneously |
| Answer» C. reproduction of an outline of a template on a workpiece | |
| 2836. |
Gears can be cut on a shaper. |
| A. | Agree |
| B. | Disagree |
| Answer» B. Disagree | |
| 2837. |
The grade of grinding wheel depends upon |
| A. | hardness of the material being ground |
| B. | speed of wheel and work |
| C. | condition of grinding machine |
| D. | all of these |
| Answer» E. | |
| 2838. |
A dynamometer is a device used for the measurement of |
| A. | chip thickness ratio |
| B. | forces during metal cutting |
| C. | wear of the cutting tool |
| D. | deflection of the cutting tool |
| Answer» C. wear of the cutting tool | |
| 2839. |
For fast removal of materials during grinding, a __________ grinding wheel is used. |
| A. | coarse grained |
| B. | fine grained |
| C. | medium grained |
| Answer» B. fine grained | |
| 2840. |
Which of the following process is used for preparing parts having large curved surfaces and thin sections? |
| A. | Hot machining |
| B. | Ultra-sonic machining |
| C. | ECM process |
| D. | Chemical milling |
| Answer» E. | |
| 2841. |
In continuous chip cutting, the maximum heat __________ the velocity of cutting. |
| A. | depends upon |
| B. | does not depend upon |
| Answer» B. does not depend upon | |
| 2842. |
In a universal milling machine, the table can be swiveled horizontally and can be fed at an angle to the milling machine spindle. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2843. |
Chip breakers are used to |
| A. | increase tool life |
| B. | remove chips from bed |
| C. | break the chips into short segments |
| D. | to minimise heat generation |
| Answer» D. to minimise heat generation | |
| 2844. |
The chuck used for setting up of heavy and irregular shaped work should be |
| A. | four jaw independent chuck |
| B. | three jaw universal chuck |
| C. | magnetic chuck |
| D. | drill chuck |
| Answer» B. three jaw universal chuck | |
| 2845. |
The size of a shaper is given by |
| A. | stroke length |
| B. | motor power |
| C. | mass of machine |
| D. | rate size |
| Answer» B. motor power | |
| 2846. |
In hot machining, the work is heated by |
| A. | simple heating |
| B. | flame heating |
| C. | induction heating |
| D. | any one of these |
| Answer» E. | |
| 2847. |
The depth of cut in drilling is __________ the drill diameter. |
| A. | equal to |
| B. | one-fourth |
| C. | one-half |
| D. | double |
| Answer» D. double | |
| 2848. |
The type of tool used on lathe, shaper and planer is |
| A. | single point cutting tool |
| B. | two point cutting tool |
| C. | three point cutting tool |
| D. | multi-point cutting tool |
| Answer» B. two point cutting tool | |
| 2849. |
A __________ grinding wheel is used to grind soft materials. |
| A. | coarse grained |
| B. | medium grained |
| C. | finegrained |
| Answer» B. medium grained | |
| 2850. |
While cutting helical gears on a non-differential gear hobber, the feed change gear ratio is |
| A. | independent of index change gear ratio |
| B. | dependent on speed change gear ratio |
| C. | inter-related to index change gear ratio |
| D. | independent of speed and index change gear ratio |
| Answer» D. independent of speed and index change gear ratio | |