134/2015

Maximum: 100 marks Time: 1 hour and 15 minutes
1. A metal object obtained by allowing molten metal to solidify in a mould is known as

Casting Machining


Forming Molding


2. The tapper provided on all vertical surfaces of the pattern as it is lifted up is known as

Rapping allowance Shrinkage allowance


Draft allowance Distortion allowance


3. The added projection on the pattern and it terms a seat in the mould in which the sand core rests during the pouring of the mould is known as:

Pattern Core prints


Handle Core box


4. The castings are prepared by forcing molten metal under high pressure into a metal mould is known as:

Sand casting molding Pressure die casting


Full mould casting Vacuum molding


5. Which of the following is NOT a pressure die casting machine?

Hot chamber machine Cold chamber machine


Goose neck machine Investment casting


6. The passage way through which molten metal enters a mould cavity is called:

Riser Runner


Puller Passage


7. a vertical passage through the cope and connecting the pouring basin to the runner:

Sprue Gate


Riser Runner


8. Which of the following is NOT the function of a die casting machine?

Closing the two halves of the die


Securing the two die halves firmly together


Forcing the molten metal into the die


Solidify the casting


9. In a multi· piece pattern contains three parts, the middle part of the pattern is known as

Drag Cope


Cheek Split pattern


10. The tool which is used to remove the pattern from the mould and also for rapping the pattern gently to loosen it from mould sand is

Trowels Slicks


Swab Draw spike


11. In which of the following is NOT a casting defects:

Blow hole Hot tears


Aspiration effects Run outs


12. The casting process which is used where very hard outer surfaces and wear resistant castings required:

Sand casting Chill casting


Continuous casting Shell molding


13. The squeeze casting is also known as

Liquid forging Centrifugal casting


Die casting Continuous casting


14. Ability of sand to flow around and over the pattern when the mould is rammed:

Flow ability Permeability


Refractoriness Deformation


15. From the following, which is the property of core sand?

Bond strength Permeability


Tensile strength Crushability


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16. The casting defect in which a slight displacement of the cope half of the casting with respect to the drag half

Mismatch Over size casting


Swelling Blow hole


17. Ability of sand to remain solid as a function of temperature:

Flow ability Refractoriness


Permeability Shear strength


18. The model of the casting in which it can be used for forming an impression in molding Sand is known as:

Casting Pattern


Molding box Cope


19. In split patterns the two parts of the pattern are aligned with:

Core Clamp


Riser Dowel pin


20. The typical shrinkage allowances provided in casting of steel in mm/meter is
8 14 20 16
21. The best cast able alloys are: Aluminum alloys Zinc alloys Copper alloys Magnesium alloys
22. The common die material is
Tungsten Cast iron Molybdenum Tool steel

23. The device used to increase injection pressure in pressure die casting is called:

Surge pump Accumulator


Feed screw Compressor


24. The property molding sand to measure of ease with which air can pass through the sand aggregate is known as

Permeability


Refractoriness

Flow ability

Cohesiveness
25. The casting process in which combines features of forging and casting in one operation is in

Slush casting


Squeeze casting

Die casting

Mould casting
26. The furnace which is most commonly used for melting and refining pig iron along with scrap in the production ofiron casting is

Cupola furnace


Air furnace

Rotary furnace

Crucible furnace
27. Melting point aluminum is about:

1450°C


1200°C

420°C

6600C
28. Pure iron that has body centered cubic lattice structure is known as

Ferrite


Pearlite

Alpha -iron

Cementite
29. Heat treatment process in which heating beyond critical temperature and cooling in air is known as:

Stress relieving


Annealing

Hardening

Normalizing
30. The permanent displacement of atoms from a given starting position by slip or twinning is known as:

Visco elasticity


Allotropy

Plastic deformation

Modulus of rupture
31.
Ability of material to resist deterioration by chemical or electrochemical reaction with its

32.
The percentage of carbon present in Cast Iron is about:


4.5 0.1-0.3%


1.8 0.01-0.1



33.
Cast iron which contains carbon as free carbon in the form of graphite is known as


Grey cast Iron White Cast Iron


Malleable Cast Iron Wrought Iron



34.
The resistance to corrosion of steel is increased by adding:


Tungsten Copper


Chromium Silicon



35.
The failure of material under repeatedly applied stress is called:


Creep Fatigue


Corrosion None of these



36.
The property of a material due to which it is able to resist abrasion indentation and scratching is known as


Hardness Toughness


Brittleness Creep



37.
Gun metal is an alloy of:


Copper -Zinc Copper -Tin


Copper -Tin -Zinc Copper· Tin -Antimony



38.
Optical Fibers are made from:


Clay Non-ferrous metals


Refractory materials Silica



39.
The casting produced by forcing molten metal under pressure into a permanent metal mould is known as:


Permanent mould casting Slush casting


Die casting Centrifugal casting



40.
The pattern which is used largely for drainage fitting and pipe work is


Shell Pattern Sweep Pattern


Skeleton Pattern Segmental Pattern



41.
The property of sand due to which it evolves a great amount of steam and other gases is called:


Cohesiveness Permeability


Collapsibility Adhesiveness



42.
Metal patterns are commonly used for:


Large castings Small Castings


Complicated Castings Large Scale productions of castings



43.
The casting defects which results in general enlargement of a casting is known as


Sand Wash Swell


Shift Scab



44.
Rapping allowance is provided on a pattern to take care of:


Shrinkage Distortion


Machining Easy withdrawal



45.
One Watt is equal to


100 joules/sec 0.1 joules/sec


10 joules/sec 1 joules/sec



46.
Matter contained in a body is called:


Momentum Weight


Mass Impulsive Force



47.
Which of the following are vector quantities?


Angular acceleration Angular velocity


Angular displacement All of above




environment:
134/2015 Fatigue strength Corrosion resistance 6 Chemical properties Toughness A

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48. The ratio of linear stress to linear strain is called:
Modulus of Rigidity Modulus of Elasticity
Bulk Modulus Poisson's Ratio
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49. The Modulus of Elasticity for Mild Steel is approximately equal to

80KN/mm2 100KN/mm2


110KN/mm 2 210 KN/mm2


50. The energy stored in a body when strained within elastic limit is known as

Resilience Proof resilience


Strain energy Impact energy


5l. The line joining the centre of rivets and parallel to the edge of the plate is known as

Back pitch Marginal pitch


Gauge line Pitch line


52. In a fusion welding process:

Only heat is used Only pressure is used


Heat and pressure is used None of these


53. 18 . 4 High speed steel contains:

18 Iron 18 Tungsten


18 Nickel 18 Chromium


54. Up setting is the term used in one of the following operations:

Casting Turning


Drilling Forging


55. In filing operations the metal removes during:

Both forward and return stroke Return stroke only


Forward stroke only None of these


56. Mild steel belonging to the following category

Low carbon steel Medium carbon steel


High carbon steel Alloy steel


57. The unit of energy in SI system is

Dyne Kg-m


Watt Joule


A9 134/2015
58. Melting point of mild steel is about: 1539"C 1131"C 1712"C 1480"C
59. The size of a gear usually specified by Pressure angle Circular diameter Pitch circular diameter Diametric pitch
60. Which of the following material has the maximum ductility? Mild steel Copper Zinc Aluminium
61. Least count of vernier micrometer is
0.001 0.02 0.01 0.1
62. Gun metal is an alloy of: copper, zinc and lead copper, zinc and tin copper and tin iron, silicon and manganese
63. In the Indian Standard Systems for Limits and Fits, there are Fundamental tolerances: grades of
16 20 18 25
64. Suggest a combination of tolerance for precision sliding fit, from the given combinations: H7/u6 H7/p6 H7/rG H7/gG
65. The operation of assembling slip gauges together for a given combination is known as slipping clamping wringing welding
66. The operation ofshaping a grinding wheel is known as truing dressing balancing aligning 134/2015 10 A

67. In a plain or simple index head, one complete rotation of the index crank rotates the spindle by:

40 revolutions one revolution


1/4 of a revolution 1/40 of a revolution


68. The defects on a die cast component due to cold metal slow shot. low die temperature is known as:

cracks cold shut


sink marks heat marks


69. Cast metal bonding to the die casting surface is known as

welding soldering


heat marks sink marks


70. Which half of the die casting dies is secured to the stationary platen of the machine?

hot chamber ejector half


cover half none of the above


71. Hot chamber die casting machines are used for making castings in

higher melting point alloys low melting point alloys


thermo setting plastics cast iron


72. The connecting member between the goose neck and the sprue bush in die casting machine is known as:

guide pin piston


adapter nozzle


73. The amount of die opening at the time the angled pin contacts the core block in die casting dies is known as

dwell day light


clearance shut height


74. The pump used in hydraulic power pack is

centrifugal pump piston pump


vane pump gear pump


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[P.T.O.)
75. parts in perfectly related alignment by absorbing side pressure and lateral thrust:

rivets bolts and nuts


dowels socket head cap screw


76. Build up of die release material on the die results in an irregular rough surface on the casting is known as

Blisters Sink marks


Wave or lake Scale


77. Which grade of grinding wheel is preferred for grinding hard metals?

hard grade wheels soft grade wheels


open structured wheels none of the above


78. In an electric discharge machining process, electrode is connected to

cathode anode


bed none of the above


79. Least count of vernier bevel protractor is

5 minutes 5 seconds


one minute one degree


80. In a fanuc control system, used in CNC machines, the functional code G21 is for:

skip function dimensioning in inch


dimensioning in mm rapid traverse


81. India's mars mission is officially known as

Mangalyan Mangala


Mars Mission Mars orbitor mission


82. Which country won the Davis Cup Tournament 2013?

Czech Republic Russia


America England


83.
Bitcoin is the digital currency used for internet trading. Where is the world's first Bitcoin

84.
Who is the new Director General of World Trade Organization?


Pascal Lamy Margarete chan


Roberto Asavedo Ban Ki Moon



85.
Who won the Abel prize 2013?


Pierre Deligne Endre Szemeredi


John Torence John Milnor



86.
Sreenagar the capital city of Jammu and Kashmir located on which river bank


Beas Chenab


Indus Jhelum



87.
The soil survey ofIndia established in which year:


1976 1949


1956 1963



88.
The leaders of the home rule movement in India borrowed the term Home Rule from a similar movement in


Scotland Ireland


Canada USA



89.
Who was the first commander of Indian National Army


Capt. Mohan Singh Subash Chandra Bose


Rash Bihari Bose Capt. Lakshmi



90.
Mixed economy was envisaged for the first time in the:


Preamble of constitution First Five Year Plan


Second Five Year Plan Bombay plan



91.
River Pamba originates from:


Marayur Peerumedu


Iravikulam Munnar




ATM is located China Singapore Canada Sweeden
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92. Which among the following is the major soil type of Kerala? Laterite Alluvial Red soil Black soil
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93. According to 2011 census which district in Kerala has the highest density of population:

Alappuzha Malappuram


Thiruvananthapuram Kollam


94. In which year peoples planning introduced in Kerala

1995 1996


1997 1998


95. Time magazines person of the year 2013 goes to

Pope Francia Edward Snodan


BaracObama Edith Windsdon


96. Who wrote the drama "Jathikkummi"?

Ayyankali Dr. Ayyathan Gopalan


Pandit Karuppan Kurumban Daivathan


97. The Malayali who worked under Gandhiji as the editor of young India:

M. C. Joseph T. K. Madhavan


K. Ayyappan Barrister George Joseph


98. "No caste No Religion and No God for human being" is the slogam of:

Dr. Palppu Sahodharan Ayyappan


Sree Narayana Guru Kumaranasan


99. Who is known as Lincoln ofkerala?

Pandit Karuppan Ayya Vaikundar


Vagbhatananda ThycadAyya


100. Who first introduced the system "A school along with every church"?

Poikayil Yohannan Kuriakose Chavara


Dr. Hermen Gundert Dr. Benjamin Basily


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