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Free download in PDF Workshop Technology Short Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
41
The metal patterns as compared to wooden patterns require less
[A]
Shrinkage allowance
[B]
Machining allowance
[C]
Draft allowance
[D]
Distortion allowance
42
According to Indian standards, the total numbers of tolerance grades are
[A]
8
[B]
12
[C]
18
[D]
20
43
The chisel used for cutting key ways is
[A]
Flat chisel
[B]
Cape chisel
[C]
Round nose chisel
[D]
Diamond pointed chisel
44
Lancing is the operation of
[A]
Cutting a sheet of metal in a straight line along the length
[B]
Removal of metal to the desired shape from the edge of a plate
[C]
Cutting a sheet of metal through part of its length and then bending the cut portion
[D]
Bending a sheet of metal along a curved axis
Answer: Cutting a sheet of metal through part of its length and then bending the cut portion
45
When the molten metal is fed in the cavity of a metallic mould by gravity, the method of casting is known as
[A]
Die casting method
[B]
Slush casting method
[C]
Permanent mould casting method
[D]
Centrifugal casting method
Answer: Permanent mould casting method
46
The welding process used in joining mild steel shanks to high speed drills, is
[A]
Spot welding
[B]
Seam welding
[C]
Flash butt welding
[D]
Upset butt welding
Answer: Flash butt welding
47
Which one of the following material will require the largest size of riser for the same size of casting?
[A]
Aluminium
[B]
Cast iron
[C]
Steel
[D]
Copper
48
The advantage of Thermit welding is that
[A]
All parts of the weld section are molten at the same time
[B]
Weld cools almost uniformly
[C]
Results in a minimum problem with internal residual stresses
[D]
All of the above
49
Loam sand is a mixture of
[A]
30% sand and 70% clay
[B]
50% sand and 50% clay
[C]
70% sand and 30% clay
[D]
90% sand and 10% clay
Answer: 50% sand and 50% clay
50
The teeth of hacksaw blade are bent
[A]
Towards right
[B]
Towards left
[C]
Alternately towards right and left and every third or fourth left straight
[D]
May be bent in any direction
Answer: Alternately towards right and left and every third or fourth left straight
51
Structural sections such as rails, angles, I-beams are made by
[A]
Hot rolling
[B]
Hot drawing
[C]
Hot piercing
[D]
Hot extrusion
52
Metal patterns are used for
[A]
Small castings
[B]
Large castings
[C]
Complicated castings
[D]
Large scale production of castings
Answer: Large scale production of castings
53
When more volume of acetylene and less volume of oxygen is supplied, then a ________ flame is obtained.
[A]
Neutral
[B]
Oxidizing
[C]
Carburising
[D]
None of these
54
The process of decreasing the cross-section of a bar and increasing its length, is called
[A]
Drawing down
[B]
Upsetting
[C]
Spinning
[D]
Peening
55
Cutting and forming operations can be performed in a single operation in a
[A]
Simple die
[B]
Progressive die
[C]
Compound die
[D]
Combination die
56
In a cold chamber die casting machine
[A]
Melting pot is separate from the machine
[B]
Melting pot is an integral part of the machine
[C]
Melting pot may have any location
[D]
Low temperature and pressure is used
Answer: Melting pot is separate from the machine
57
Seam welding is best adopted for metal thickness ranging from
[A]
0.025 to 3 mm
[B]
3 to 5 mm
[C]
5 to 8 mm
[D]
8 to 10 mm
58
In order to check the clearance between two mating surfaces, a ________ gauge should be used.
[A]
Ring
[B]
Plug
[C]
Feeler
[D]
None of these
59
The hot working of metals is carried out
[A]
At the recrystallisation temperature
[B]
Below the recrystallisation temperature
[C]
Above the recrystallisation temperature
[D]
At any temperature
Answer: Above the recrystallisation temperature
60
In blanking operation, the clearance is provided on
[A]
Punch
[B]
Die
[C]
Half on the punch and half on the die
[D]
Either on punch or die depending upon designer's choice
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