Workshop Technology MCQs : This section focuses on the "Workshop Technology". These Multiple Choice Questions (MCQs) should be practiced to improve the Workshop Technology skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
The centrifugal casting method, is used for casting articles of
A. symmetrical shape about vertical axis
B. symmetrical shape about horizontal axis
C. irregular shape
D. non-ferrous metal only
Question 2
The tolerance produced by shell moulding process of casting is
A. +0.05 mm
B. ±0.2 mm
C. +0.5 mm
D. ±1 mm
Question 3
The algebraic difference between the minimum limit and the basic size is called
A. actual deviation
B. upper deviation
C. lower deviation
D. fundamental deviation
Question 4
The cold chisels are made by
A. drawing
B. rolling
C. piercing
D. forging
Question 5
The property of sand due to which it evolves a great amount of steam and other gases is called
A. collapsibility
B. permeability
C. cohesiveness
D. adhesiveness
Question 6
Which of the following methods can be used for manufacturing 2 metre long seamless metallic tubes?
A. Drawing
B. Extrusion
C. Rolling
D. Extrusion and rolling
Question 7
In a hot 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. high temperature and pressure is used
Question 8
The bloom is smaller than a billet.
A. TRUE
B. FALSE
Question 9
Metal patterns are used for
A. small castings
B. large castings
C. complicated castings
D. large scale production of castings
Question 10
The purpose of a riser is to
A. deliver molten metal into the mould cavity
B. act as a reservoir for the molten metal
C. feed the molten metal to the casting in order to compensate for the shrinkage
D. deliver the molten metal from pouring basin to gate
Question 11
The accuracy of micrometers, calipers, dial indicators can be checked by a
A. feeler gauge
B. slip gauge
C. ring gauge
D. plug gauge
Question 12
In a bilateral system of tolerance, the tolerance is allowed on
A. one side of the actual size
B. one side of the nominal size
C. both sides of the actual size
D. both sides of the nominal size
Question 13
When a hole or cavity to be cored is not in line with the parting surface, then a __________ is used.
A. horizontal core
B. vertical core
C. drop core
D. balanced core
Question 14
In shielded arc welding
A. large electrode is used
B. welding rod coated with slag is used
C. welding rod coated with fluxing material is used
D. none of the above
Question 15
The cross-section of a chisel is usually
A. rectangular
B. square
C. hexagonal
D. octagonal
Question 16
A taper provided on the pattern for its easy and clean withdrawl from the mould is known as
A. machining allowance
B. draft allowance
C. shrinkage allowance
D. distortion allowance
Question 17
Thread rolling is restricted to
A. ferrous materials
B. ductile materials
C. hard materials
D. none of these
Question 18
The fullers are used
A. for finishing flat surfaces
B. for necking down a piece of work
C. for punching a hole
D. to finish the punched hole
Question 19
The draft or taper allowance on casting is generally
A. 1 to 2 mm/m
B. 2 to 5 mm/m
C. 5 to 10 mm/m
D. 10 to 15 mm/m
Question 20
Surface plate is used to check the trueness of flat surfaces.
A. TRUE
B. FALSE
Question 21
When a pattern is made in three parts, the bottom part is known as a cope.
A. TRUE
B. FALSE
Question 22
Blanking and piercing operations can be performed simultaneously in a
A. simple die
B. progressive die
C. compound die
D. combination die
Question 23
The chisel used for cutting key ways is
A. flat chisel
B. cape chisel
C. round nose chisel
D. diamond pointed chisel
Question 24
Galvanising is a
A. zinc diffusion process
B. process of coating zinc by hot dipping
C. process used for making thin phosphate coating on steel
D. none of the above
Question 25
In a four high rolling mill, there are four rolls out of which
A. one is working roll and three are backing up rolls
B. two are working rolls and two are backing up rolls
C. three are working rolls and one is backing up roll
D. all of the four are working rolls
Question 26
A plug gauge is used to check the diameter of shafts and studs.
A. Correct
B. Incorrect
Question 27
The type of file used for a wood work is
A. single-cut file
B. double cut file
C. rasp-cut file
D. any one of these
Question 28
In a die casting method, the molten metal is forced into mould under high pressure.
A. Correct
B. Incorrect
Question 29
In sheet metal blanking, shear is provided on punches and dies so that
A. press load is reduced
B. good cut edge is obtained
C. warping of sheet is minimised
D. cut blanks are straight
Question 30
In welding copper alloys with TIG arc welding
A. direct current with straight polarity is used
B. direct current with reversed polarity is used
C. alternating current is used
D. any one of these
Question 31
The temperature of oxy-hydrogen flame is __________ oxy-acetylene flame.
A. same as
B. less than
C. more than
Question 32
The temperature at which the new grains are formed in the metal is called
A. lower critical temperature
B. upper critical temperature
C. eutectic temperature
D. recrystallisation temperature
Question 33
The blank diameter used in thread rolling will be
A. equal to minor diameter of the thread
B. equal to pitch diameter of the thread
C. a little larger than the minor diameter of the thread
D. a little larger than the pitch diameter of the thread
Question 34
Which of the following welding process uses non-consumable electrodes?
A. TIG welding
B. MIG welding
C. Manual arc welding
D. Submerged arc welding
Question 35
In a hot chamber die casting machine
A. ferrous alloys with low melting temperature are casted
B. ferrous alloys with high melting temperature are casted
C. non-ferrous alloys with low melting temperature are casted
D. non-ferrous alloys with high melting temperature are casted
Question 36
In a centrifugal casting method
A. core is made of sand
B. core is made of ferrous metal
C. core is made of non-ferrous metal
D. no core is used
Question 37
In a centrifugal casting method, the impurities are collected in the centre of the casting.
A. Yes
B. No
Question 38
The low pressure acetylene is produced at the welding site by the chemical reaction between water and calcium carbonate.
A. Correct
B. Incorrect
Question 39
The electrodes used in spot welding have a tip of
A. stainless steel
B. aluminium
C. copper
D. brass
Question 40
A pattern maker's shrinkage rule considers
A. all pattern allowances
B. only shrinkage allowance
C. all materials to be cast
D. all materials of the pattern
Question 41
In back-hand welding, the angle between the welding torch and the work is kept as
A. 30°-40°
B. 40°-50°
C. 50°-60°
D. 60°-70°
Question 42
The machining allowance provided on patterns depends upon
A. type of casting metal
B. size and shape of casting
C. method of casting used
D. all of these
Question 43
A zinc diffusion process is called
A. galvanising
B. anodising
C. parkerising
D. sherardizing
Question 44
In arc welding, the electric arc is produced between the work and the electrode by
A. voltage
B. flow of current
C. contact resistance
D. all of these
Question 45
In average work, the tolerance produced by investment casting method is
A. ±0.05 mm
B. +0.2 mm
C. +05 mm
D. +1 mm
Question 46
In submerged arc welding, an arc is produced between a
A. carbon electrode and the work
B. metal electrode and the work
C. bare metal electrode and the work
D. two tungsten electrodes and the work
Question 47
In __________ welding, the weld may be made either from left to right or from right to left.
A. fore-hand
B. back-hand
C. vertical
Question 48
The ferrous metals require more machining allowance than non-ferrous metals.
A. TRUE
B. FALSE
Question 49
The instrument which has all the features of try-square, bevel protractor, rule and scriber, is
A. outside micrometer
B. inside micrometer
C. depth gauge micrometer
D. combination set
Question 50
A saw which cuts wood during the return stroke of the saw is known as
A. push saw
B. pull saw or draw saw