Post: Junior Instructor Machinist
Department: Industrial Training
Category Code: 549/17
Question Paper: 105/18
Qualification: S.S.L.C + National Trade Certificate; Diploma in the appropriate branch of Engineering
Date of Test: 15-10-2018
If you find mistakes, comment below
- V-blocks are available in grades of
- 0 and 1
- 1 and 2
- A1 and A2
- A and B
- Where is pin hook spanner used?
- Circular nut having slot
- Hexagonal nut
- Square nut
- None of these
- The best way of avoiding accident is by
- Doing work in ancient way
- Observing safety rules related to job, machine and workpiece
- Doing work in one’s own way
- Using safety equipment
- A 6H7 holes is to be reamed in a steel workpiece. What size of drill will be required?
- 5.5 mm
- 5.8 mm
- 6.0 mm
- 6.2 mm
- Gunmetal is an alloy of
- copper, tin and zinc
- copper, lead, and zinc
- iron, zinc, and nickel
- aluminum, lead, and nickel
- An oily floor should be cleaned by
- Cotton waste
- Putting water
- Putting sawdust
- Spraying carbon dioxide or sand
- The point angle of twist drill depends upon the
- cutting speed
- type of drilling machine
- size of drill
- material to be drilled
- Carbon content in cold chisel is
- 0.6 to 0.7%
- 1.2 to 1.4%
- 0.3 to 0.5%
- 0.9 to 1.1%
- The movable jaw of a bench vice is not moving even through the spindle is turned
- fixed and movable jaw are over tight
- spindle pin is broken
- spring is not functioning
- threads on spindle are slightly worn out
Question Error
- Drill chucks are held on the machine spindle by means of
- chuck nut
- drift
- draw in bar
- arbor
- For machining a job on the shaper the length of the stroke should be
- equal to that job length.
- more than job length.
- less than the job length.
- maximum length of stroke.
- In a crank type shaping machine the length of the stroke can be increased or decreased by rotating the
- Vertical lead screw
- Horizontal lead screw
- Radial lead screw
- Connecting rod
- Quick return mechanism is used in
- milling machine
- shaper
- welding machine
- grinding machine
- The type of file used for woodwork is
- single cut file
- double cut file
- rasp cut file
- None of these
- The feed of shaper takes place
- at the middle of cutting stroke
- at the middle of return stroke
- at the start of return stroke
- at the start of cutting stroke
Question Error
- A carbon steel piece is heated just above 730°C, maintained at that temperature for a few hours and then slowly cooled. What heat treatment process is carried out?
- Normalizing
- Case hardening
- Hardening
- Annealing
Question Error
- Which among the following locators is best suitable for location of a round shaped job?
- Pin type locator
- Wedge type locator
- Vee locator
- Adjustable stop locator
- The root of ISO metric thread is
- flat
- round
- sharp corner
- None of these
- Grade-00 slip gauge is used in
- Workshop by operator
- Inspection room
- Calibration
- Neither Workshop by operator nor Inspection room
- Metric outside micrometer has a threaded spindle with a pitch is
- 0.5 mm
- 0.25 mm
- 0.02 mm
- 0.01 mm
- What is the hardening temperature for HSS tool?
- 1250°C
- 950°C
- 850°C
- 750°C
- Mass-produced component should be interchangeable, one of the following is the most important factor required to achieve the interchangeability in mass production :
- Dimensional accuracy
- Geometrical accuracy
- Standardization
- Surface finish
- The symbol ∇ indicates the value of surface finish
- 40 to 80 microns
- 16 to 40 microns
- below 16 microns
- None of these
- Reciprocating movement of the table in planer is obtained by
- Loose and fast pulleys
- Worm and worm wheel
- Rack and gear
- Cam drive
- The top and sides of the table of shaper usually have
- L-types slots
- T-types slots
- U-types slots
- I-types slots
- Which one of the planning machine has only one column?
- Pit planning machine
- Plate planning machine
- Hydraulic planning machine
- Open side planning machine
- Which of the following washer is used where the loosening of bolts due to vibrations or shock are more likely to be?
- Plain washer
- Spring washer
- Tap washer
- Fibre washer
- Nut is a
- temporary fastener
- semi-permanent fastener
- permanent fastener
- None of these
- Which of the following instrument is used to check the hills and valley for the surface of the job?
- By ammeter
- By dial gauge
- By barometer
- By Taly-surf
- Jobs are placed in ash or _____ for annealing.
- limestone
- coke
- pig iron
- All of these
- The included angle of acme thread is _____ degree.
- 30
- 29
- 47½
- 60
- The percentage of carbon in grey cast iron is _____
- more than 6.67%
- less than 2.1%
- more than 2.1%
- None of these
- Clearance between the mating parts is measured by which of the following gauge?
- Dial gauge
- Plug gauge
- Feeler gauge
- Caliper gauge
- The nut used to fix blade in hacksaw frame is _____
- Dome nut
- Thumb nut
- Wing nut
- Castle nut
- Which drilling machine is used in mass production?
- Bench type drilling machine
- Pillar type drill press
- Portable drilling machine
- Gang type drilling machine
- In normalizing process, hot steel is made to cool by
- immersing it in oil
- keeping it in still air at room temperature
- leaving it in cold air
- immersing it in water
- _____ marking media takes too much time to get dry and it makes clear lines.
- Prussian blue
- Chalk
- Copper sulphate
- None of these
- With the help of vernier bevel protractor any angle can be measure up to the accuracy of the
_____ of 1 degree.
- 10th parts
- 12th parts
- 9th parts
- 4th parts
- The standard range of sizes covered in the BIS system of limit and fits are
- 0 to 10 mm
- 0 to 100 mm
- 25 to 400 mm
- 0 to 500 mm
- It is used for aligning the vice with shaping machine table in position.
- Steel rule
- Straight edge
- Dial test indicator
- Tee bolt
- The tolerance of a hole is the difference between the
- maximum hole and minimum shaft
- minimum hole and maximum shaft
- maximum hole and the maximum shaft
- maximum hole and the minimum hole
- Zero error of a 50-75 mm outside micrometer can be checked with
- dial test indicator
- vernier height gauge
- feeler gauge
- test piece
- In abrasive jet machining, the nozzle mounted in the fixture is made up of
- High Speed Steel
- Aluminium Oxide
- Silicon Carbide
- Tungsten Carbide
- Which thread is used in lead screw of lathe?
- Acme thread
- Butters thread
- Square thread
- Knuckle thread
- Which type headstock have back gear mechanism?
- All geared headstock
- Stepped cone pulley headstock
- All of these
- None of these
- What is the purpose of clearance angle of lathe cutting tool?
- To guide the chip away
- To avoid overheating
- To prevent the tool rubbing with the work
- To break the lengthy chips
- For turning the work between centers, both faces of the workpiece are drilled with
- Twist drill
- Countersunk
- Counterbore
- Centre drill
- In lathe the follower rest is fixed on
- Lathe bed
- Saddle
- Tailstock
- Carriage
- Which mechanism is used to connect carriage to lead screw?
- Rack and pinion
- Screw cutting mechanism
- Half nut mechanism
- Back gear mechanism
- In a screw thread lead is equal to _____
- Pitch
- Pitch X No. of start
- Pitch X Major diameter
- Pitch X Minor diameter
- Length of sine bar is
- Length of face
- Length between outside of two rollers
- Length between Centre of two rollers
- Length between inside of two rollers
- Which of the following is not a good quality cutting fluid?
- High heat absorption
- High flash point
- Good lubricating quality
- High viscosity
- Which one of the following is an example of gravity feed lubricating system?
- Stauffer screw down greaser
- Wick feed lubricator
- Oil can
- Grease gun
- In CNC programming, code represents feed in mm/rev. is
- G70
- G71
- G95
- G96
- In CNC machine, which controls system have the facility to feedback information to the control?
- Open loop control system
- Closed loop control system
- Both Open loop control system and Closed loop control system
- None of these
- The rotary movement in z-axis of a CNC machine is called _____
- A-axis
- B-axis
- C-axis
- D-axis
- In horizontal milling machine cutters are mounted on
- Spindle
- Draw bar
- Arbor
- Saddle
- The radial distance between pitch circle and outside circle of a spur gear is known as _____
- Chordal addendum
- Dedendum
- Circular pitch
- Addendum
- What is the maximum table tilting angle of a universal milling machine?
- 45°
- 55°
- 60°
- 75°
- The ratio between pitch circle diameter in millimetres to number teeth of a spur gear is known as
- Circular pitch
- Diametrical pitch
- Addendum
- Module
- If ______ is not tightened properly, the draw bolt will get loosened.
- Arbor
- Lock Nut
- Key
- Arbor support
- While using the long arbor, the arbor will sag if _____ is not used.
- Coller
- Front brace
- Arbor support
- Drawbar
- Which number involute gear cutter is used to cut rack?
- 1
- 2
- 3
- 4
- Which type of slots is provided on the milling machine table for clamping workpiece or work holding devices?
- J-slot
- T-slot
- C-slot
- E-slot
- In milling process the work is feeding against the direction of rotation of the cutter, the method is known as
- Straight milling
- Opposite direction milling
- Up milling
- Down milling
- What is the cutting speed of a side and face milling cutter having outer dia. 125 mm and running at an rpm of 80?
- 31.4 M/min.
- 62.8 M/min.
- 31.4 mm/min.
- 62.8 mm/min.
- Formula of simple indexing is
- N/40
- 40/N
- 30/N
- N × 30
- What is the pitch circle diameter of a spur gear of two module 47 teeth?
- 94 mm
- 98 mm
- 102 mm
- 90 mm
- Pitch of the table lead screw of milling machine is 5 mm, while linear indexing to get 1 mm movement how many times the crank of indexing head will turn?
- 8
- 5
- 11
- 6
- Which mechanism used in indexing head?
- Nut and bolt
- Worm and worm gear
- Indexing plate
- Rack and pinion
- A grinding wheel is specified as 32 A 46 H 8 V. In this, the letter ‘V’ represented for
- Grade
- Grid size
- Structure
- Bond
- In centerless grinding the longitudinal feed rate can be varied by changing _______
- Angle of inclination of control wheel
- Angle of inclination of grinding wheel
- Angle of inclination of work rest
- Movement of work rest
- Which bond is used for heavy duty, large diameter wheels, a fine finish is required?
- Shellac bond
- Silicate bond
- Rubber bond
- Resinoid bond
- The grain size of grinding wheel is 24, it is a _____ grain wheel.
- Coarse
- Medium
- Fine
- Very Fine
- In the marking system of grinding wheel, silicon carbide wheel is denoted by which letter?
- O
- A
- S
- C
Question Error
- While grinding soft metals, the chips are get clogged between the abrasive particle of the wheel. This condition is known as
- Clogging
- Glazing
- Loading
- Pinning
- Tool used to dressing the grinding wheel is
- File card
- Wire brush
- Wheel balancer
- Wheel dresser
- The process of shaping of the grinding wheel to make it run concentric with axis is known as
- Dressing
- Glazing
- Loading
- Truing
- In centre less grinder, for longitudinal feed the control wheel inclined at an angle of
- 1° – 7°
- 9° – 15°
- 10° – 13°
- 7° – 10°
- When new carbide tipped tools required re-sharpening it is first ground to rough form with
- Diamond wheel
- Silicon carbide
- Sand stone
- Green grit silicon carbide
- The borderline between India and China is
- Radcliffe Line
- McMahon Line
- Durand Line
- Palk Strait
- The largest Union Territory of India is
- Puducherry
- The Lakshadweep
- The Andaman & Nicobar Islands
- Daman & Diu
- The National River of India is
- The Ganga
- The Sindhu
- The Yamuna
- The Brahmaputra
- First Chairman of the Planning Board in India is
- Dadabhai Naoroji
- V.K.R.V. Rao
- Jawaharlal Nehru
- M.N. Roy
Question Error
- Which of the following Indian Prime Minister introduced the Twenty Point Programme?
- Indira Gandhi
- Manmohan Sing
- Narasimha Rao
- Jawaharlal Nehru
- Who introduced the Subsidiary Alliance System in India?
- Lord Dalhousie
- Lord Wellesley
- Lord Canning
- Lord Cornwallis
- First Martyr of the Revolt of 1857 is
- Nana Saheb
- Jhansi Rani
- Mangal Pandey
- Tantia Tope
- The first President of Indian National Congress is
- A.O. Hume
- Dadabhai Naoroji
- W.C. Banerjee
- C. Sankaran Nair
- Which of the following strike is NOT led by Mahatma Gandhi?
- Non-Co-operation Movement
- Civil Disobedience Movement
- Quit India Movement
- Home Rule Movement
- Who composed the ‘Mushakavamsakavya’?
- Banabhatta
- Atula
- Kautilya
- Kalhana
- The social reformer of Kerala, who is known as ‘Vidyadhiraja’
- Vaikunda Swamikal
- K.P. Kesava Menon
- Chattampi Swamikal
- Mannath Padmanabhan
- Which of the following person translated the autobiography of Karl Marx into Malayalam?
- Swadeshabhimani Ramakrishna Pillai
- E.M.S. Namboodiripad
- A.K. Gopalan
- E.K. Nayanar
- The social reformer who is known as ‘Bharatha Kesari’ is
- T.K. Madhavan
- Mannath Padmanabhan
- K. Kelappan
- P. Krishnapillai
- After, which of the following consecration of Lord Shiva, Sree Narayana Guru replied, “I consecrated the Ezhava Shiva and not the Brahmin Shiva”?
- Sivagiri
- Aruvippuram
- Thalassery
- Aluva
- The Sadhujana Paripalana Sangham was founded under the leadership of
- Ayyankali
- Dr. Palpu
- Vagbhadananda Gurukkal
- Sahodaran Ayyappan
- The present Chief Election Commissioner of India is
- Umesh Sinha
- Ashok Lavosa
- Om Prakash Rawat
- Sunil Arora
- The Head Quarters of I.S.R.O. is at
- Bangalore
- Mumbai
- Delhi
- Sriharikota
- The Australian cricketer who lost captaincy due to ball tampering scandal recently
- David Warner
- Steve Smith
- Cameron Bancroft
- Mitchel Starc
- The first Nigerian actor to play a leading role in an Indian Film is
- Samuel Abiola Robinson
- Femi Adebayo
- Yemi Ajibade
- Ken Erics
- The popular Science book on cosmology ‘A Brief History of Time’ is the work of
- Issac Newton
- Charles Darwin
- Stephen Hawking
- Albert Einstein
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