ELEMENTS 8 Flashcards
- It is also known as climb milling in which the rotation of the cutter and the movement of the table is in the same direction.
A. Down milling
B. Up milling
C. Straddle milling
D. Gang milling
A. Down milling
- The _______ is a machine tool used to remove mtal from a work piece to give it the required shape and size.
A. Shaper
B. Planer
C. Lathe
D. Grinder
C. Lathe
- It is the method of grinding cylindrical surfaces.
A. Centerless grinding
B. Plunge-cut grinding
C. Through feed grinding
D. None of these
A. Centerless grinding
- It is the angle between the side cutting edge and the longitudinal axis of the tool.
A. Side cutting edge angle
B. End cutting edge angle
C. Side relief angle
D. End relief angle
A. Side cutting edge angle
- It is a surface finishing process and is used to produce a lustrous surface of attractive appearance.
A. Polishing
B. Buffing
C. Lapping
D. Glazing
B. Buffing
- It consists of surface irregularities , which result from the various manufacturing process.
A. Lay
B. Waiveness
C. Flaws
D. Roughness
D. Roughness
- A _____ is formed when a shaft rotates in a bush, lines of the bore of a housing.
A. Ball bearing
B. Roller bearing
C. Plain bearing
D. Needle bearing
C. Plain bearing
- CNC in machine shop means
A. Computer Number Control
B. Computer Numerical Control
C. Communication Network control
D. Computer Network Center
B. Computer Numerical Control
- It is the time lost due to break downs, waiting for tools, minor accident etc.
A. Set up time
B. Handling time
C. Machining time
D. Down time
D. Down time
- Refers to the process of separating or removing the burning of combustible material from the neighborhood of the fire.
A. Starvation
B. Blanketing
C. Cooling
D. None of these
A. Starvation
- What is the stress to strain ratio within the elastic limit?
A. Elastic limit
B. Elasticity
C. Modulus of elasticity
D. Compressive ratio
C. Modulus of elasticity
- A material plane was subjected to a load. When the load was removed, the strain disappeared. From the structural change which of the following can be considered about this material?
A. It does not follow Hooke’s law
B. It is elastic
C. It has high modules of elasticity
D. It is plastic
B. It is elastic
- Allowance added in the casting pattern to compensate for the contraction of metal.
A. Tapering allowance
B. Finish allowance
C. Shrinkage allowance
D. Draft pattern
C. Shrinkage allowance
- Ratio of the angle of action to the pitch angle.
A. Contact ratio
B. Ratio of gearing
C. Approach ratio
D. Module
A. Contact ratio
- General purpose grade of steel used for broiler plate, structurals etc. usually with carbon content of:
A. 0.20 to 0.30%C
B. 0.35 to 0.0%C
C. 0.15 to 0.25%C
D. All of these
A. 0.20 to 0.30%C
- The angle made by the helix of the thread (in a straight thread) at the pitch diameter with a plane perpendicular to the axis called:
A. Angle of thread
B. Lead angle
C. Truncation
D. Lead
B. Lead angle
- The principle materials used in the production of metal working tools.
A. High carbon steel
B. Titanium, phosphorus
C. Tungsten, silicon, hadfield Mn
D. Vanadium, chromium, molybdenum
A. High carbon steel
- In the interest of design simplification and good kinematic compromise bevel gears adopted a standard pressure angle of _____ degrees.
A. 200 involute stub
B. 141/2 involute full depth
C. 200
D. 171/2
C. 200
- The property of material that relates the lateral strain to longitudinal strain.
A. Stress
B. Poisson’s ratio
C. Strain
D. Endurance limit
B. Poisson’s ratio
- It is generally recommended and normal for a designer to add a hunting tooth to evenly distribute the wear on meshing teeth like a 53 teeth gears mesh with 30 teeth pinion. Find the rotation of pinion to mesh with same pair of teeth again.
A. 120
B. 61
C. 81
D. 53
D. 53
- When does a chisel get blunt?
A. When it is properly heat treated
B. When it is not properly heat treated
C. When it is properly tempered
D. When it is not properly tempered
B. When it is not properly heat treated
- What is it necessary to provide tolerance?
A. It saves the labor charges
B. It saves the material from wastage
C. It saves the time
D. All of these
D. All of these
- It is done then and there by adjusting or repairing the faults come in notice during the work.
A. Preventive maintenance
B. Predictive maintenance
C. Routine maintenance
D. Corrective maintenance
C. Routine maintenance
- A _______ is used between the cutting tool and work piece to minimize the friction heat.
A. lubricant
B. Coolant
C. Water
D. Alcohol
B. Coolant
- Which of the following is NOT a function of bearings
A. To support the shaft
B. To guide the shaft
C. To give free rotation to the shaft
D. To transmit power
D. To transmit power
- It is a process of cleaning the face of grinding wheel by means of a dresser for removing the glazing and loading of wheel and to improve the cutting action of a wheel.
A. Dressing
B. Polishing
C. Truing
D. Lapping
A. Dressing
- What should be the top rake angle to cut brass?
A. 0o
B. 15o
C. 30o
D. 45o
A. 0o
- It is a long, tapered punch used for loosening straight pins, taper pins, rivets and other small parts being disassembled.
A. Drive-pin punch
B. Hand punch
C. Drift punch
D. Center punch
C. Drift punch
- A tool used for turning nuts or bolts.
A. Plier
B. Wrench
C. Long nose
D. C – Clamp
B. Wrench
- A sharp pointed steel tool used to scribe lines on metal being laid out.
A. Divider
B. Scriber
C. Trammel
D. Hermaphrodite calliper
B. Scriber
- The shaft whose torque varies from 2000 to 6000 in lbs has 1 ½ in. in diameter and 60000 psi yield strength. Compute for the shaft mean average stress.
A. 6036 psi
B. 5162 psi
C. 6810 psi
D. 5550 psi
A. 6036 psi
- The angle made by the helix of the thread (In a straight thread) at the pitch diameter with a plane perpendicular to the axis is called:
A. Lead angle
B. Lead
C. Trunction
D. Angle of thread
A. Lead angle
- The rule of thumb in journal bearing design; the clearance ratio/clearance should be:
A. 0.0090
B. 0.0010
C. 0.0042
D. 0.00120
B. 0.0010
- The moment of inertia is a rectangle whose base is “b” height “h” about its base is:
A. bh3/4
B. bh3/24
C. bh3/12
D. bh3/3
D. bh3/3
- Cold rolled shafting is not available in diameter larger than:
A. 6 inches
B. 6 ½ inches
C. 5 inches
D. 5 ½ inches
C. 5 inches
- Height of tooth above pitch circle or the radial distance between pitch circle and top land of the tooth.
A. Top root
B. Land
C. Addendum
D. Hunting tooth
C. Addendum
- The function of clutch in the machine tool is:
A. Lowering of drive speed
B. To disconnect or connect at will the drive
C. Alignment of drive shaft
D. To insure that two shaft line up at high speed
B. To disconnect or connect at will the drive
- A resulting forces that replace two or more forces acting together.
A. Vector
B. Resultant
C. Couple
D. Equilibrium
B. Resultant
- Stress relieving is also _____ for the purpose of reducing the internal stresses of steel material/metal.
A. Normalizing
B. Annealing
C. Tempering
D. All of these
C. Tempering
- Matensite (stainless steel) contains 4 to 26% Cr. And a maximum of ____ % nickel.
A. 2.5
B. 3.5
C. 3.25
D. 2.0
A. 2.5
- A ____ is used to be test the accuracy of holes.
A. Snap gage
B. Ring gage
C. Plug gage
D. Depth gage
C. Plug gage
- A ____ consists of a hardened and ground steel bar in which two hardened and ground of the same diameter are set.
A. Caliper
B. Gage block
C. Sine bar
D. Micrometer
C. Sine bar
- A ______ consists of a slide and a swivel vise mounted on the compound rest in place of the tool post.
A. Milling attachment
B. Relieving attachment
C. Grinding attachment
D. Reaming attachment
A. Milling attachment
- ________ are hardened steel devices with a taper shank on one end and a 60 degree point at the other end.
A. Tailstock centers
B. Lathe centers
C. Live centers
D. Dead centers
B. Lathe centers
- It is a work holding device.
A. Arbor
B. Mandrel
C. Jigs
D. Fixtures
B. Mandrel
- The cutting of groove nest to a shoulder on a piece of work.
A. Undercutting
B. Necking
C. Grooving
D. Any of these
D. Any of these
- The operation of producing a beveled edge at a specified angle of the nd of a turned diameter.
A. Chamfering
B. Knurling
C. Honing
D. Undercutting
A. Chamfering
- It is a large casting located on the left end of the bed.
A. Tailstock
B. Head stock
C. Carriage
D. Chuck
B. Head stock
- A ________ is a thread that has a lead equal to pitch.
A. Right hand thread
B. Left hand thread
C. Single thread
D. Multiple head
C. Single thread
- The distance between the crest and the base of the thread, measured perpendicular to the axis.
A. Depth of thread
B. Length of engagement
C. Depth of engagement
D. Axis of thread
A. Depth of thread
- Matensite (stainless steel) contains 4 to 26% Cr. And a maximum of _____% nickel.
A. 2.5
B. 3.5
C. 3.25
D. 2.0
A. 2.5
- Compute the deflection of a 18 coils helical spring having a load of 100 kgs. The modulus of elasticity in shear of spring is 96.62 GPa, OD pof 9 525 mm. The spring is square and ground ends.
A. 9 mm
B. 112 mm
C. 101 mm
D. 14 mm
C. 101 mm
- A flanged bolt coupling has ten (10) steel 25.4 mm diameter bolts evenly tighten around a 415 mm bolt circle. Determine the torque capacity of the connection if the allowable shearing stress in the bolt is 50 MN/m2.
A. 59.95 KN-m
B. 46.15 KN-m
C. 52.6 KN-m
D. 43.8 KN-m
C. 52.6 KN-m
- The material that can cut/wear hardest substance subjected to:
A. Carbide
B. Tungsten
C. Abrasive
D. Vanadium
C. Abrasive
- A ridge of uniform section in the form of a helix cut around the circumference of a cylinder and advancing along the axis.
A. Thread roots
B. Screw threads
C. Helix thread
D. Chamfers
B. Screw threads
- Cast iron flywheels are commonly designated with factor of safety of:
A. 10 to 13
B. 10 to 14
C. 10 to 12
D. 8 to 13
A. 10 to 13
- Class of material exhibiting decreased electrical conductivity with increasing temperature.
A. Aluminum
B. Metals
C. P-type semi-conductors
D. N-type semi-conductors
B. Metals
- The welding made along the edges of twp parallel plates is called:
A. Groove joint
B. Edge joint
C. Fillet joint
D. Corner joint
Answer: B
B. Edge joint
- Not part and in fact should not be used in the steel melting process.
A. Coke
B. Zinc
C. Silicon
D. Aluminum
A. Coke
- Rule of thumb in calculating the equipment foundation mass should be _____ times the weight of the machinery it is supposed to support.
A. 3 – 5
B. 3 – 9
C. 3 – 6
D. 2 – 4
A. 3 – 5
- Used to permit lever shift for vertical travel of rail.
A. Ball crank
B. Clamp plates
C. Plunger knob
D. None of these
C. Plunger knob
- It is mounted on the top of the column and is guided in perfect alignment by the machined dovetailed surfaces.
A. Over arm
B. Spindle
C. Arbor
D. Saddle
A. Over arm
- Refers to circular milling attachment that is bolted to the top of the table of a plain or universal milling machine.
A. Slotting attachment
B. Rotary attachment
C. Milling attachment
D. Spiral attachment
B. Rotary attachment
- The process of removing burrs and the gates and risers left on casting after the molding process.
A. Reaming
B. Snagging
C. Honing
D. Knurling
B. Snagging
- The ____ supports the table on the cross rail and moves across it from left to right.
A. Apron
B. Bearing
C. Spindle
D. Handle
A. Apron
- Name of mechanism, which a welding operator holds during gas welding and at the end of which the gages are burred to perform the various gas welding operation.
A. Hose
B. Torch
C. Gage
D. Switch
B. Torch
- A tool used for measuring diameters.
A. Protractor
B. Scriber
C. Caliper
D. Compass
C. Caliper
- A fine grained, slaty silica rock used for sharpening edged tools.
A. Oilstone
B. Surface grinder
C. Rocky oil
D. None of these
A. Oilstone
- Device used to prevent leakage of media.
A. Gasket
B. Seal
C. Shield
D. Stopper
B. Seal
- Flexible material used to seal pressurized fluids normally under dynamic conditions.
A. Packing
B. Gasket
C. Shield
D. Seal
A. Packing
- The strength of non-ferrous alloys is at maximum at room temperature while that of ferrous metal has a maximum strength at _____0 F.
A. 400
B. 450
C. 1200
D. 350
A. 400
- The ratio of stress acting on an elastic substance to the decrease in volume per unit volume.
A. Bulk modulus
B. Elastic limit
C. Modules of resilience
D. Modules of elasticity
A. Bulk modulus
- The normal helix angles in helical gear is recommended in the range of ____ degrees.
A. Less than 18
B. 15 to 25
C. 20 to 35
D. 20 to 30
B. 15 to 25
- Type of bolt commonly used in the construction that is threaded in both ends.
A. Stud bolt
B. Hex bolt
C. Acne threaded bolts
D. Square threaded bolts
A. Stud bolt
- It is rigid place which serves to transmit force from a piece another piece or to cause/control motion.
A. Follower
B. Cam motion
C. Crank
D. Link
D. Link
- A 20 kgs. Cast iron piece rest on a plain horizontal aluminum surface. To move the object it needs a force of 7 lbs. The density of Al is 0.098 lb/in3 and iron is 0.260 lb/in3.
A. 0.172
B. 1.601
C. 0.186
D. 0.160
D. 0.160
- Which of the following is an iron based alloy containing 9 – 16% chromium?
A. Mn hadfield steel
B. Stainless steel
C. Chrome-moly steel
D. High chrome steel
B. Stainless steel
- Shafting up to 3 inches in diameter is usually made from cold rolled steel and the common biggest diameter of cold rolled steel is:
A. 4 ½ inches
B. 6 ¾ inches
C. 6 7/8 inches
D. 5 inches
D. 5 inches
- It is ideal for maximum quietness in sprockets drive operation to choose ____ or more teeth.
A. 24
B. 27
C. 18
D. 21
B. 27
- All associated with standard material specification, except:
A. American Iron and Steel Institute
B. Society of Automotive Engineers
C. Southeast Asia Iron and Steel Institute
D. American Society for Testing Materials
C. Southeast Asia Iron and Steel Institute
- A hand tool used to measure tension of bolts.
A. Tensile range
B. Torque wrench
C. Hooke’s gauge
D. Spring balance
B. Torque wrench
- A hand tool used to measure engine crank web deflection.
A. Feeler gage
B. Compound gage
C. Distortion gage
D. Dial gage
C. Distortion gage
- A device used for accurately measuring diameters.
A. Dial gage
B. Feeler gage
C. Caliper
D. Micrometer
D. Micrometer
- It is used to true and align machine tools, fixtures and works.
A. Dial indicator
B. radial indicator
C. Dial gage
D. Feeler gage
A. Dial indicator
- The operation of making a cone-shaped enlargement of the end of a hole, as for a recess for a flattened screw.
A. Counter boring
B. Counter sinking
C. Reaming
D. Drilling
B. Counter sinking
- A kind of chuck, which has reversible jaws, which could be adjusted separately.
A. Independent chuck
B. Combination chuck
C. Magnetic chuck
D. Universal chuck
A. Independent chuck
- It is used for cutting long pieces of metals.
A. Planer
B. Shaper
C. Power saw
D. Broaching machine
C. Power saw
- It is used for external, internal and relieving of mill cutters and taps
A. Milling attachment
B. Thread attachment
C. Taper attachment
D. Relieving attachment
D. Relieving attachment
- It is the stretching or spreading of metal by hammering
A. Peening
B. Flaring
C. Upsetting
D. Bending
A. Peening
- The ______ is the most common of the standard tapers.
A. Brown
B. Jarno
C. Sharpe
D. Morse
D. Morse
- For stable equipment foundation, the total combined engine driven equipment and foundation center of gravity must be kept below the foundation’s too that usually about ____ times the usual total combined weight of the machinery it is supposed to support.
A. 3 to 4
B. 2 to 4
C. 3 to 7
D. 3 to 5
D. 3 to 5
- A cylinder tank with 10” inside diameter contains oxygen gas at 2500 psi. Calculate the required wall thickness in (mm) under stress of 28 000 psi.
A. 11.34 mm
B. 12.44 mm
C. 10.24 mm
D. 10.54 mm
A. 11.34 mm
- The process of opening the joint portion immediately after the welding greatly improves the fusion structures avoids possible cracking, avoids possible distortion etc. Peening can also _____ process at the same time.
A. Tempering
B. Normalizing
C. Martempering
D. Annealing
A. Tempering
- What do you call the distance between rivet center nearest each other in adjacent rows?
A. Pitch
B. Margin
C. Back pitch
D. Diagonal pitch
D. Diagonal pitch
- Which of the following is a major alloy in tool steel?
A. Cr
B. Cobalt
C. Fen
D. Mn
A. Cr
- Should two equal and opposite collinear forces is added to the forces already in equilibrium, which of the following statements is true?
A. Unbalanced moment is maintained
B. Equilibrium is maintained
C. Equilibrium id disturbed
D. It creates an unbalanced situation
B. Equilibrium is maintained
- In pressure vessels, which of the following resists internal pressure through bending?
A. Shell-type element
B. Cam type element
C. Plate-type element
D. Spherical type element
C. Plate-type element
- Which of the following flanges is suitable for low and moderate pressure?
A. Ring-flange
B. Lap joint flange
C. Tapered-hub flange
D. Welding neck type
A. Ring-flange
- It is the process of pre-stressing or over-stressing of a hollow cylindrical member beyond the elastic range.
A. Presstagge
B. Autofrettage
C. Stress relieving
D. Countersinking
B. Autofrettage
- It is the phenomenon occurring when two touching surfaces have a high contact pressure and when these surfaces have minute relative moton.
A. Prestressing
B. Fretting
C. Friction
D. Carving
B. Fretting
