1)Material used for coating the electrode is called
a) protective layer b) binder c) slag d) deoxidizer e) flux
ans: e
2) the strength of a properly welded joint as compared to base metal
a)same b) more c) less d) unpredictable e) two cant be compared
ans: d
3)The surface to be machined are marked on the pattern by the following color
a) black b) yellow c) red d) blue e) green
ans: c
4)A 20 tonne press implies that
a) weight of press is 20 tonnes b) press can handle works weighing upto 20 tonnes c) it can exert pressure uptp 20 tonnes d) its foundation should be designed for 20 tonnes e) its turnover in a day is 20 tonnes
ans: c
5)no lubricant is required when cutting threads in
a)tungsten carbide b) mild steel c) titanium d) brass or castiron e) hss
ans: d
6)The difference between planner and shaper is that in former case
a) tool moves over stationary work b) tool moves over reciprocating work c) tool can machine internal as well as external details d) both tool and job reciprocates e) tool is stationary and job reciprocates
ans: e
7)Powder metallurgy techniques are used in production of
a)high carbon tool steel b) HSS tools c) tungsten carbide tools d)twist drills e)ceramics
ans:: e
8)Drilling is an example of
a)simple cutting b) uniform cutting c) orthogonal cutting d) oblique cutting e)intermittent cutting
ans: d
9) Reamer is used to correct the
a) size and position of drilled hole b) size and roundness of hole c) finish and position of drilled hole d) finish and size of drilled hole e) finish and depth of a drilled hole
ans: b
10) The operation of milling two sides of a workpiece simultaneously is called
a) gang milling b) climb milling c) square milling d) straddle milling e) end milling
ans:d
11)In which type of milling operation the chip is cut off at thinnest place and the chip thickness increases along chip length
a)up milling b) down milling c) end milling d) climb milling e) key way milling
ans:a
12) A sine bar is specified by
a) its total length b)the center distance between two rollers c)size of the rollers d) the distance between rollers and upper surface e) weight of sine bar
ans:b
13)Expressing a dimension as 18.3±0.02 mm is the case of
a) unilateral tolerance b) bilateral tolerance c) limiting dimensions d) all the above e) none of the above
ans:b
14) LASER stands for
a) light amplification by simulated emission of radiation
b)light amplification by strong emission of radiation
c) light amplification by simulated energy of radiation
d) light amplification by simulated energy of radiation
e) none of the above
ans: a
15) Gantt chart provides the information about a) material handling b) proper utilization of manpower c) production schedule d) efficient working of machine e) all the above
ans:c
16) Third angle projection symbol
17) Fillet welding symbol - ref: machine drawing book
18) Father of scientific management
19) problem: feed speed thickness will be given ,drilling time is asked
20) Normalising operation is carried out in
a)furnace b) air c) water d) oil e) controlled atmosphere
21) one question in work study
ans: workstudy =time study+method study
22)which is a dimensionless quantity
ans: specific gravity
23: Which is a vector quantity
Ans: momentum
24) Pressure applied in a liquid in all directions will be given by
ans: pascal law
25)In Piercing and punching clearance will be applied on
26) Permanent plastic deformation of metals under compression
ans: malleability
27)To increase corrosion resistance which will be added
28)cycle used in petrol engine
29)use of index pulley
30)What is resilience
31)M20*2 –in this 20 represents what?
32)one question about isotropic of materials
33)Solder is an alloy consisting of
ans : tin and copper
34)In a cantilever beam point load is applied on free end , where failure will accure
35)plastic deformation due to constant load at high temp ans: creep
36)Galvanising is
ans: the process of coating of zinc by hot dipping
37)ABC analysis deals with
ans: controlling inventory costs money
38)PERT stands for
ans: Projection Evaluation and Review Technique
39)Type of hatching is given you have to identify the material - ref: m/c drawing book
40) Study about combination die, compound die , progressive die
All the questions are taken from
Mechanical Engineering R.K .Jain –Khanna's publications
Objective Type
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