Tradesman (Fitting) Question Paper and Anser Key

PROVISIONAL ANSWER KEY

Question Paper Code: 49/2019/OL

Category Code: 645/2017

Exam: Tradesman (Fitting)NCA

Medium of Question: English

Date of Test 03-10-2019

Department Technical Education



Question1:-Two opposite sides are equal and parallel and four angles are right angles are called as .......?
A:-Trapezium
B:-Square
C:-Parallelogram
D:-Rectangle
Correct Answer:- Option-B

Question2:-The main title of the drawing is written in ..... style?
A:-Times new roman
B:-Arial
C:-Courier
D:-Gothic
Correct Answer:- Option-D

Question3:-The system of writing dimensional value over the dimensional line is called as .....?
A:-Parallel Dimensioning System
B:-Aligned System
C:-Chain Dimensioning System
D:-Unidirectional System
Correct Answer:- Option-B

Question4:-If actual length of 5 mm is drawn in drawing to a length 50 mm. What is the type of scale used?
A:-Reduced scale
B:-Multiple scale
C:-Enlarged scale
D:-Plain scale
Correct Answer:- Option-C

Question5:-What is the interior angle of a regular pentagon?
A:-120 degree
B:-60 degree
C:-72 degree
D:-108 degree
Correct Answer:- Option-D

Question6:-True shape of an inclined plane is shown in .....?
A:-Auxiliary view
B:-Front view
C:-Top view
D:-Side view
Correct Answer:- Option-A

Question7:-Lower critical temperature of high carbon steel while hardening is .....?
A:-960 degree
B:-900 degree
C:-723 degree
D:-560 degree
Correct Answer:- Option-C

Question8:-Which reamer is used for reaming internal metric morse tapered holes?
A:-Socket reamer with parallel shank
B:-Hand reamer with pilot
C:-Taper pin hand reamer
D:-Helical fluted reamer
Correct Answer:- Option-A

Question9:-Face of the pulley is make slightly convex in width. It is called .....?
A:-Flanck
B:-Crowning
C:-Effective diameter
D:-Rim
Correct Answer:- Option-B

Question10:-Which parameter is specific to design hydromotor?
A:-Maximum cylinder size
B:-Maximum oil saving method
C:-Maximum piston size
D:-Maximum operating pressure
Correct Answer:- Option-D

Question11:-Which is the important factor to determine the construction of fixture?
A:-Location and clamping
B:-Machining method
C:-Tool guiding and framing
D:-Size of work piece and tool
Correct Answer:- Option-B

Question12:-The following extinguisher is suitable for cotton or other textile fire
A:-Water
B:-Foam
C:-Soda Acid
D:-Dry Chemical
Correct Answer:- Option-A

Question13:-The function of a washer is .....?
A:-To fill the axial gap
B:-To provide cushioning effect
C:-To absorb shock and vibrations
D:-To provide bearing area
Correct Answer:- Option-D

Question14:-Name the rivet head used for heavy fabrication work is .....?
A:-Flat head
B:-Pan head
C:-Snap head
D:-Mushroom
Correct Answer:- Option-B

Question15:-Which is the least efficient but most common type of chain hoist available?
A:-Screw geared hoist
B:-Spur geared hoist
C:-Differential hoist
D:-Come along chain hoist
Correct Answer:- Option-C

Question16:-What is the cause of water dripping from the tap even after closed?
A:-Defective washer
B:-Spindle thread wornout
C:-Bend spindle
D:-Loose valve
Correct Answer:- Option-A

Question17:-Which metal alloys is used to make bearing?
A:-Tin
B:-Nickel
C:-Chromium
D:-Babbit Metal
Correct Answer:- Option-D

Question18:-Which metal used to make alligator type fastener?
A:-G.I. sheet
B:-Copper sheet
C:-Steel sheet
D:-Aluminium sheet
Correct Answer:- Option-C

Question19:-Why the small steel wedge is tapped under the machine in lifting operation?
A:-To prevent vibration
B:-To reduce the weight
C:-To accept the crowbar
D:-To balance the machine
Correct Answer:- Option-C

Question20:-Which type of coupling can bring the shaft ends into perfect alignment?
A:-Plate coupling
B:-Clamp coupling
C:-Safety coupling
D:-Universal coupling
Correct Answer:- Option-A

Question21:-Which among the following material can be cut with a RASP cut file?
A:-Copper and Tin
B:-Brass and Bronze
C:-Leather and Wood
D:-Steel
Correct Answer:- Option-C

Question22:-Which among the following types of chisel used to cutting curved grooves?
A:-Flat Chisel
B:-Diamond Chisel
C:-Cross cut Chisel
D:-Half round nose Chisel
Correct Answer:- Option-B

Question23:-An oily floor should be cleaned by .....?
A:-Cotton waste
B:-Putting water
C:-putting saw dust or sand
D:-Spraying carbon dioxide
Correct Answer:- Option-C

Question24:-Which one of the thread forms has an included angle of 29 Deg. between the sides of the thread?
A:-Gritish association thread
B:-Knuckle thread
C:-Buttress thread
D:-ACME thread
Correct Answer:- Option-D

Question25:-As per Indian standard a special set of slip gauge is used consisting of .....?
A:-81 pieces
B:-112 pieces
C:-120 pieces
D:-130 pieces
Correct Answer:- Option-B

Question26:-A hole, which is not made through full depth of the component is known as .....?
A:-Core Hole
B:-Bore Hole
C:-Pin Hole
D:-Blind Hole
Correct Answer:- Option-D

Question27:-Which among the following is an artificial abrasive?
A:-Aluminium oxide
B:-Emery
C:-Diamond
D:-Corundum
Correct Answer:- Option-A

Question28:-A grinding wheel is marked: 51 A 46 L 5 V-23. Here what does 5 denote?
A:-Kind of bond
B:-structure
C:-Kind of abrasive
D:-Grain size
Correct Answer:- Option-B

Question29:-Which type of key is used for coupling a pully with a shaft?
A:-Taper Key
B:-Woodruff Key
C:-GIB head Key
D:-Flat Saddle Key
Correct Answer:- Option-C

Question30:-For riveting aluminium sheets, the material of rivet should be used .....?
A:-Aluminium
B:-Copper
C:-Brass
D:-Wrought Iron
Correct Answer:- Option-A

Question31:-Which among the following nuts is used for hand vice?
A:-Check Nut
B:-Wing Nut
C:-Thumb Nut
D:-Hexagonal Nut
Correct Answer:- Option-B

Question32:-Which one of the following is a chemical property of metals?
A:-Corrosion
B:-Conductivity
C:-Hardness
D:-Elasticity
Correct Answer:- Option-A

Question33:-Liquid carburizing is done in a heated salt bath. Which one of the following is not a carburizing salt?
A:-Sodium Carbonate
B:-Barium Chloride
C:-Sodium Cyanide
D:-Sodium Sulphate
Correct Answer:- Option-D

Question34:-The belt movement upon the outer surface of the Pulleys within the area of contact is known as .....?
A:-Slipping
B:-Creeping
C:-Dressing
D:-Crowning
Correct Answer:- Option-B

Question35:-Which one of the following is designed for taking an Axial Thrust Load as well as Radial Load?
A:-Thrust Bearing
B:-Needle Bearing
C:-Angular contact Ball Bearing
D:-Roller Bearing
Correct Answer:- Option-C

Question36:-..... are used for rotating shafts between centres?
A:-Mandrel
B:-Chuck
C:-Face Plate
D:-Driving Plate
Correct Answer:- Option-D

Question37:-A Collate Chuck is meant for the Gripping of?
A:-Heavy job
B:-Small jobs
C:-Large dia jobs
D:-Small dia jobs
Correct Answer:- Option-B

Question38:-The measured size of dimension of a component is called?
A:-Basic size
B:-Nominal size
C:-Allowed size
D:-Actual size
Correct Answer:- Option-D

Question39:-Ratchet stop in the micrometer help to .....?
A:-Lock the spindle
B:-Control the pressure
C:-adjust zero error
D:-Hold the jobs
Correct Answer:- Option-B

Question40:-A file used for filing narrow slots notches and grooves is a .....?
A:-Knife edge file
B:-Half round file
C:-Flat file
D:-Mill file
Correct Answer:- Option-A

Question41:-Leveling bolts are used for .....?
A:-Supporting the load for machine
B:-Rigidity of machine
C:-Adjusting the height of machine
D:-None of these
Correct Answer:- Option-C

Question42:-The sensitivity of precision spirit level is?
A:-0.02 to 0.05 / 100 mm
B:-0.02 to 0.05 / 1000 mm
C:-0.02 to 0.05 / 200 mm
D:-0.02 to 0.05 / 500 mm
Correct Answer:- Option-B

Question43:-For cutting hard material ..... pitch blade is recommended?
A:-10
B:-25
C:-18
D:-14
Correct Answer:- Option-D

Question44:-Cast iron is used for manufacturing machine beds because?
A:-It can resist more compressive stress
B:-It is heavy in weight
C:-It is a cheaper metal
D:-It is a brittle metal
Correct Answer:- Option-A

Question45:-Desirable hardness in a file is generally?
A:-30 HRC
B:-45 HRC
C:-60 HRC
D:-80 HRC
Correct Answer:- Option-C

Question46:-Carbide tipped tool used for turning hard material is provided?
A:-Side rack angle
B:-Zero rack angle
C:-Positive rack angle
D:-Negative Rack angle
Correct Answer:- Option-D

Question47:-The plug gauge with go and nogo ends on the same side of the gauge is .....?
A:-Double ended plug gauge
B:-Progressive plug gauge
C:-Adjustable plug gauge
D:-Fixed type plug gauge
Correct Answer:- Option-B

Question48:-Extension rods of inside micrometer are made of?
A:-Steel with 800 H.V
B:-In side micrometer
C:-Depth Gauge
D:-Tube Micrometer
Correct Answer:- Option-A

Question49:-Pig Iron is refined to produce Cast Iron in furnace called?
A:-Pig Iron
B:-Cast Iron
C:-Wrought Iron
D:-Steel
Correct Answer:- Option-C
Question50:-Double helical gear are called?

A:-Herring Bone Gear
B:-Spur Gear
C:-Bevel Gear
D:-Worm Gear
Correct Answer:- Option-A

Question51:-Tap washers are used for?
A:-Preventing vibration
B:-Locking the Nuts
C:-Self Locking
D:-None of these
Correct Answer:- Option-B

Question52:-The best example for Gravity Feed Lubrication is?
A:-Ring Lubricator
B:-Wick Feed Lubricator
C:-Grease Gun
D:-Pump Lubricator
Correct Answer:- Option-A

Question53:-The machine element which control the sequence of operation in Auto Turret Lathe is?
A:-Cam
B:-Gears
C:-Belt and Pulley
D:-Screw Rod
Correct Answer:- Option-A

Question54:-Main alloying element in high speed steel is?
A:-Chromium
B:-Vanadium
C:-Tungsten
D:-Nickle
Correct Answer:- Option-C

Question55:-Lathe mandrels can be termed as a?
A:-Jig
B:-Fixture
C:-Gauge
D:-Template
Correct Answer:- Option-B

Question56:-Which one of the following bearing is used for talking Heavy Axial Load?
A:-Trust Bearing
B:-Solid Bearing
C:-Journal Bearing
D:-Tapered Roller Bearing
Correct Answer:- Option-D

Question57:-Which of the following Pulley is used for obtaining different speed ratio of?
A:-Jocket Pulley
B:-Solid Pulley
C:-Split Pulley
D:-Stepped Pulley
Correct Answer:- Option-D

Question58:-Hooks Law is associated with?
A:-Pressure
B:-Thermal Expansion
C:-Stress
D:-Force
Correct Answer:- Option-A

Question59:-Which one of the following key may be screwed to the shaft?
A:-Saddle
B:-Woodruff
C:-Taper
D:-Feather
Correct Answer:- Option-D

Question60:-The shaft ends are entre drilled for?
A:-Supporting jobs between centres
B:-Lubricating the dead centre
C:-Reducing the weight
D:-Assisting counter boring
Correct Answer:- Option-A

Question61:-Tap washers are used for .....?
A:-Preventing vibration
B:-Locking the nuts
C:-Self locking
D:-Fastening structural fabrication work
Correct Answer:- Option-B

Question62:-The least count of a vernier metric micrometer is
A:-0.1 mm
B:-0.01 mm
C:-0.001 mm
D:-0.0001 mm
Correct Answer:- Option-C

Question63:-A chemical compound of carbon with iron is called?
A:-Ferrite
B:-Pearlite
C:-Cementite
D:-Austenite
Correct Answer:- Option-C

Question64:-Bell metal is an alloy of
A:-Lead and Tin
B:-Copper and Tin
C:-Copper and Aluminium
D:-Copper and Nickle
Correct Answer:- Option-B

Question65:-Which taper on diameter is always 1:20?
A:-Metric Taper
B:-Mirse Taper
C:-Brown and sharp Taper
D:-Pin Taper
Correct Answer:- Option-A

Question66:-As per Indian standard the radius of Fillet Gauge are available in size range of?
A:-0.6 to 25 mm
B:-1 mm to 8 mm
C:-5 mm to 20 mm
D:-10 mm to 25 mm
Correct Answer:- Option-A

Question67:-In which of the following punch is used for marking witness mark?
A:-Prick Punch 30 Deg.
B:-Dot Punch 60 Deg.
C:-Centre Punch
D:-Bell Punch
Correct Answer:- Option-B

Question68:-One yard is equal to .....?
A:-32 Inch
B:-35 Inch
C:-40 Inch
D:-36 Inch
Correct Answer:- Option-D

Question69:-The principle of the sine bar is based on the .....?
A:-Algebraic function
B:-Cosine principle function
C:-Analytical geometric function
D:-Trigonometric function
Correct Answer:- Option-D

Question70:-The fly press, pen cap have .....?
A:-Single start thread
B:-Multi start thread
C:-Double start thread
D:-Both A & C
Correct Answer:- Option-B

Question71:-The process of embedding the abrasive grains on lapping is called .....?
A:-Rubbing
B:-Lapping
C:-Fixing
D:-Charging
Correct Answer:- Option-D

Question72:-At gas welding, the angle of the nozzle holding welding line is .....?
A:-60 to 70 Degree
B:-80 to 90 Degree
C:-85 to 95 Degree
D:-40 to 60 Degree
Correct Answer:- Option-A

Question73:-The chief alloying elements of carbide tool is.....?
A:-Carbon and Iron
B:-Carbon and Molybdenum Iron
C:-Carbon and Vanadium
D:-Carbon and Tungsten
Correct Answer:- Option-D

Question74:-The type of Jig used for location from a bore is the .....?
A:-Solid Jig
B:-Dril Jig
C:-Box Jig
D:-Post Jig
Correct Answer:- Option-D

Question75:-The percentage of carbon content in cast iron is .....?
A:-4% to 6%
B:-3% to 5%
C:-2% to 4%
D:-1% to 3%
Correct Answer:- Option-C

Question76:-The melting point of cadmium is ..... ?
A:-320 degree
B:-2620 Degree
C:-3380 Degree
D:-1495 degree
Correct Answer:- Option-A

Question77:-In which of the following friction is rather low?
A:-Solid Friction
B:-Rolling Friction
C:-Liquid Friction
D:-Gas Friction
Correct Answer:- Option-D

Question78:-The cutting angle of half round scraper is between .....?
A:-60 Degree to 80 Degree
B:-45 Degree to 65 Degree
C:-65 Degree to 75 Degree
D:-45 Degree to 68 Degree
Correct Answer:- Option-B

Question79:-In which of the following metal has its most one important uses for Electro Plating Metallic?
A:-Chromium
B:-Nickel
C:-Stainless Steel
D:-Aluminium
Correct Answer:- Option-A

Question80:-Which flame does not have bad effect on metals / weld?
A:-Neutral flame
B:-Oxdizing flame
C:-Carburing flame
D:-None
Correct Answer:- Option-A

Question81:-A depression formed at the end of the weld is called?
A:-Pinehole
B:-Blowhole
C:-Crater
D:-Crack
Correct Answer:- Option-C

Question82:-In which of the following Anode materials are insoluble?
A:-Nickel
B:-Chromium
C:-Copper
D:-Zinc
Correct Answer:- Option-B

Question83:-Percentage of carbon in mild steel?
A:-0.1 to 0.3%
B:-0.15 to 0.25%
C:-0.1 to 0.5%
D:-1 to 4 %
Correct Answer:- Option-A

Question84:-The temperature at which the structure of steel completely changes to Austenite is called?
A:-Lower critical temperature
B:-Upper critical temperature
C:-Preheat
D:-Soaking time
Correct Answer:- Option-B

Question85:-Which one of the following is used for gas carburizing?
A:-Acetylene
B:-Hydrogen
C:-Methane
D:-Oxygen
Correct Answer:- Option-C

Question86:-Ball bearing are most widely used to all the bearings the width of the ball bearing is
A:-Equal to bore diameter
B:-Greater than bore diameter
C:-Smaller than bore diameter
D:-Equal or greater than bore diameter
Correct Answer:- Option-C

Question87:-The swage block is made of?
A:-Malleable castiron
B:-Aluminium
C:-Cast Steel
D:-Steel
Correct Answer:- Option-A

Question88:-In the pipe assembly the hemp packing is used?
A:-For easy engagement
B:-To fill the gap between threads
C:-To avoid leakage
D:-To get tight fitting
Correct Answer:- Option-C

Question89:-The circlip is the example for in which following type spring?
A:-Helical spring
B:-Wire spring
C:-Leaf spring
D:-Coil spring
Correct Answer:- Option-C

Question90:-Approximate hardness of HSS Milling?
A:-45 HRC
B:-52 HRC
C:-62 HRC
D:-75 HRC
Correct Answer:- Option-C

Question91:-An irregularity shaped work piece is turmed on a lathe. Which one of the work holding accessories is used?
A:-3 Jaw Chuck
B:-4 Jaw Chuck
C:-Face Plate
D:-Driving Plate
Correct Answer:- Option-C

Question92:-When the threading tool reaches the end of the thread the tool should be?
A:-Left in groove and reverse the workpiece.
B:-Withdrawn after stopping the machine
C:-Withdrawn while the tool is taking cut
D:-Withdrawn after removing the workpiece
Correct Answer:- Option-C

Question93:-Which taper is used on spindle nose of the lathe head stock?
A:-Jarno taper
B:-Brown share taper
C:-Pin Taper
D:-Morse Taper
Correct Answer:- Option-D

Question94:-If the bearing is fitted too tight the internal radial clearance will be .....?
A:-Increased
B:-Reduced
C:-Same
D:-None of the above
Correct Answer:- Option-B

Question95:-Wrought Iron is made from
A:-Blast Furnace
B:-Crucible Furnace
C:-Puddling Furnace
D:-Open Hearth Furnace
Correct Answer:- Option-C

Question96:-Bending of a rope is known as?
A:-Round Turn
B:-Bight
C:-Loop
D:-Knot
Correct Answer:- Option-D

Question97:-Which of the following is not a part of a taper turning attachment?
A:-Guide Block
B:-Sliding Block
C:-Guide Bar
D:-Carrier
Correct Answer:- Option-D

Question98:-Special purpose material handling equipment are used in?
A:-Purpose Layout
B:-Line Layout
C:-Both A and B
D:-None of the above
Correct Answer:- Option-B

Question99:-Which one of the following is a type of actuator in a Hydraulic system?
A:-Pump
B:-Valve
C:-Strainer
D:-Cylinder
Correct Answer:- Option-D

Question100:-Which one of the following tests is carried out after overhauling and reconditioning of Machines?
A:-Periodic acceptance test
B:-Geometrical test only
C:-Performance test one
D:-None of the above
Correct Answer:- Option-A