SAMPLE PAPER FOR HAL & DRDO
Hi, This is kishore I have appeared for HAL AND DRDO Examination held on 7th February 2010 . Below are some of the questions which had appeared in the examination and I am providing for u on the memory basis so that it would give u an idea for exam preparation . My advice is just stick to the basic concepts thank q
All the Bessst
1) Castiron is best welded by -______
2) Reaming is done by ________
3) Relation between circular pitch and diametrical pitch ________
4) Internal energy is a function of ________
5) COP of carnot refrigator ________
6) Ignition quality is a measure of ________
7) Which is not a casting defect (select out of 4 opions)
8) Heat pump is derived from which law________
9) Milling cutter operates against________ cutter
10) PERT & BAR charts are used for ________
11) Rocket works on the principle ________
12) Heat transfer is related to which law________
13) Micrometer does not consist of ________ (Select out of 4 options)
14) A fastener is specified by ________
15) I law of thermodynamics deals with________
16) Long columns may fail in ________
17) Equivalent length for a beam with one fixed end free end ________
18) The following are boiler accessories ____(Select out of 4 options
19) Funtion of fusible plug________
20) A Bench vice has ________ threads
21) Knuckle threads transmits________
22) Slip gauges are joined by ________
23) Angle plate is always used with ________
24) Chaplets are used for ________
25) Riser is used for ________
26) Sprue is meant for ________
27) In blanking operation clearance is provided on ________
28) Use of comperator________
29) Thickness of sheet metal lies in the range of ________
30) Tail stock is used for holding tools for performing ________ operations
31) Nose radius is indicated ________ in the tool signature
32) For cutting brass ________ coolent is requied
33) Knurling operators is used for ________
34) The following is the stronget bond (Select out of 4 options
35) No. of links for a simple machine __________
36) MIG uses __________electrode
37) Flux used for brazing __________
38) A section having no joint __________
39) Ratio of oxygen to Acetylene in neutral flame __________
40) Cold working is carried out at __________ temperature
41) Carbide tips are joined by __________
42) In SAW welding arc is produced between __________
43) __________ is poorest conductor of electricity (Select out of 4 options
44) (Select out of 4 option __________ is not function of normalizing
45) Ornaments are made by __________
46) Cheek is a __________ part of moulding box
47) Metal removal rate is more in __________ machining
48) Hallow mandrees are used for__________
49) Refactoriness of sand is more with __________ sand
50) Orsat apparatus is used for __________
51) __________ is advantage of forging
52) In 18 – 4- 1 steel, 18 refers to __________
53) Steels with carbon % .6-1.5% are known as __________
54) Maximum stress a metal can withstand beyond which permanent elongation starts _______
55) For self-locking effiency of machine should be __________
56) Maximum efficiency of screw jack when x = 30
57) When a material is constrained tomove & heated __________ stresses are developed
58) When B.M is maximum S.F. is __________
59) When load at free end of cantilever is increased failure occurs at __________
60) Max B.M. for simply supported beam with UDL over entire length is __________
61) A material obeys hookes law upto __________
62) Proof resilience is given by __________
63) T/J relation is used to give __________
64) Newton law of viscosity gives relationship between __________
65) Centre of buyoance is ________
66) Metacentre height is defined as __________
67) Velocity ratio is __________ propotional to diameter
68) T1/T2 = __________ for V – belt
69) Poise is the unit of __________
70) Differential manometer is used to measure __________
71) Crowing on the pulley is used to __________
72) For maximum power belt speed is given by __________
73) In V-belt contact between pulley & belt is __________
74) Generally cotter & spigot joint tranmits __________
75) Gear train used in clocks __________
76) Closed sytem is one which permits __________
77) -37F = __________ C
78) Reversed braytone cycle is __________
79) Flow pattern observedafter opening tap __________
80) __________ requires heavier flywheel ( 2stroke or 4 stroke)
81) Watts governor height is given by __________
82) Fly wheel is meant for __________
83) Wet steam is completely specified by __________
84) Critical pressure ratio is given for ___
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