ELECTRO CHEMICAL MCQS
- Which of the following instruments is most accurate
- A surface gauge is used for
- A feeler gauge is used to check
- Work is usually required to be held in a vertical position for laying outFor this purpose, it is clamped to
- Ahacksaw is specified by the following parameter of its blade
- Thin metal pieces can be cut by
- The length of a hacksaw blade is measured
- To prevent the blade of the saw from binding in the saw, blade is
- When the file is pushed and pulled across tho work,
- The thickness of light gauge sheet steel can hachecked with a
- Optical flats are made of
- The least count of a metric vernier caliper aving 25 divisions on vernier scale, matching with 9 24 divisions of main scale (1 m.s division = 0.5 mm) is
- The thread micrometer measures
- An important precaution to be observed during filing operation is to
- If a hole is to be tapped its size should be
- V-block is used in the workshop to check
- Repeatability of measuring equipment is
- The taper of internal dovetail can be measured with the help of
- External taper can be accurately measured with the help of
- A sine bar is specified by
- Profile of a gear tooth can be checked by
- Gear tooth caliper is used to find the chordal thickness of following type of gear tooth
- All the thread characteristics can be measured precisely with
- The advantage of vernier caliper over micrometer is that it
- The combination set can be used to
- Before drilling at a point, it should be ensured that
- In layout work, a pencil should not be used to draw lines on metal because
- Surface plate is usually made of grey cast iron because it provides
- Constant measuring pressure in micrometer screw gauges is ensured by
- Optical gauge work on the principle of
(a) vertical caliper
(b) manometric screw gauge
(c) optical projector
(d) mechanical comparator
(e) slip gauges.
optical projector
(a) levelling the surface plate
(b) checking the surface finish
(c) laying out the work accurately
(d) finding the depth of the surface
(e) finding flatness of surfaces.
laying out the work accurately
(a) screw pitch
(b) radius
(c) unsymmetrical shape
(d) surface roughness
(e) thickness of clearance.
thickness of clearance.
(a) surface plate
(b) an angle plate
(c) a machine bed
(d) a V-block
(e) engineer’s square.
an angle plate
(a) material
(b) length
(c) width
(d) number of teeth
(e) distance between two holes at extreme.
length
(a) using a blade with very fine teeth
(b) placing several pieces together and cutting them at the same time
(c) placing the metal between two pieces of wood and cutting through both metal and wood
(d) all of the above
(e) none of the above.
placing the metal between two pieces of wood and cutting through both metal and wood
(a) over toothed length
(b) from one extreme to other
(c) in between centres of two holes at both the ends
(d) as the length of cut
(e) as certain multiples of the width of blade.
in between centres of two holes at both the ends
(a) reinforced
(b) strengthened
(c) twisted
(d) set
(e) tinned and sharpened.
set
(a) straight filing it is called
(b) push-pull filing
(c) all of the above
(d) draw filing
(e) none of the above.
draw filing
(a) finely divided steel scale
(b) depth gauge
(c) hermaphrodite caliper
(d) micrometer
(e) thickness measuring machine fitted with dial gauge
micrometer
(a) glass
(b) quartz
(c) steel1
(d) plastic
(e) silicon.
quartz
(a) 0.01 mm
(b) 0.05 mm
(c) 0.001 mm
(d) 0.02 mm
(e) 0.005 mm.
0.02 mm
(a) the major diameter of the thread
(b) the minor diameter of the thread
(c) the effective diameter of the thread
(d) the root diameter of the thread
(e) all the diameters of the thread
the effective diameter of the thread
(a) not rub finger over file
(b) not rub finger over the work
(c) apply equal pressure on file
(d) properly support file
(e) clean file frequently
not rub finger over the work
(a) equal to diameter of the desired thread
(b) a few microns larger than the desired threads
(c) a few microns smaller than the desired threads
(d) any one of the above
(e) none of the above.
none of the above.
(a) roundness of a cylindrical work
(b) surface roughness
(c) dimensions of oval job
(d) taper on a job
(e) none of the above
roundness of a cylindrical work
(a) the closeness with which a measurement cal be read directly from a measuring instrumen
(b) a measure of how close the readit true size reading is to the
(c) difference between measu sured value and actual value
(d) the smallest change in measured surand that can be
(e) the capability to indicate the same reagain and again for a given measurand.
the capability to indicate the same reagain and again for a given measurand.
(a) sine bar
(b) combination set
(c) balls of standard dimensions and slip gauges
(d) clinometer
(e) dial gauge.
balls of standard dimensions and slip gauges
(a) sine bar and slip gauges
(b) dividing head
(c) precision balls and height gauge
(d) combination set
(e) clinometer.
sine bar and slip gauges
(a) its total length
(b) the centre distance between the two rollers
(c) the size of the rollers
(d) the distance between rollers and upper surface
(e) weight of sine bar.
the centre distance between the two rollers
(a) sine bar
(b) bench micrometer
(c) optical pyrometer
(d) optical projector
(e) slip gauges.
optical projector
(a) spur gears
(b) helical gears
(c) worm gears
(d) bevel gears
(e) any type of gear.
spur gears
(a) screw pitch gauge
(b) micrometer with V anvil
(c) tool room microscope
(d) thread gauge
(e) thread measuring machine.
tool room microscope
(a) is easier and quicker to use
(b) is more accurate
(c) can be used to make both inside and outside measurements over a range of sizes
(d) all of the above
(e) none of the above.
can be used to make both inside and outside measurements over a range of sizes
(a) check angular surfaces
(b) draw circles and arcs
(c) scribe lines
(d) all of the above
(e) none of the above.
check angular surfaces
(a) punch mark has been made at the point
(b) position of point has been marked by two intersecting lines
(c) centre drill has been used at the point
(d) diameters have been located
(e) surface is flat.
centre drill has been used at the point
(a) it will wipe off easily
(b) the line will be too wide for accurate work
(c) the lines will smudge and be difficult to see
(d) the lines do remain on metal even after good rubbing
(e) all of the above.
the line will be too wide for accurate work
(a) very hard plate
(b) non wearing plate
(c) easy to cast plate
(d) lubrication due to graphite flakes
(e) stable plate.
lubrication due to graphite flakes
(a) barrel and thimble
(b) locknut
(c) spindle
(d) spanner
(e) ratchet.
ratchet.
(a) reflection
(b) refraction
(c) polarisation
(d) dispersion
(e) interference of light rays.
interference of light rays.
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“representation of electrochemical cell”,”electrochemical cell pdf”
