ITI Wire man Exam Questions with Answer

Exam: ITI Wireman
Medium of Question: English
Department Industrial Training

Question21:-How is an ammeter connected in a circuit?
 C:-Series - parallel
 D:-None of these
 Correct Answer:- Option-B
Question22:-BOT unit is _________

 Correct Answer:- Option-C
Question23:-The temp. resistance coefficient is represented in the form of
 D:-None of these
 Correct Answer:- Option-C
Question24:-Ohm is the unit of
 B:-Capacitive reactance
 C:-Inductive reactance
 D:-All of the above
 Correct Answer:- Option-D
Question25:-3 resistors are connected in series across a 27V supply. The second resistor has twice the resistance of the first.
The third one has three times the resistance of the second. Find the voltage across the third resistance
 Correct Answer:- Option-D
Question26:-A safety sign circular in shape, white symbol on blue background is a
 A:-Prohibition sign
 B:-Mandatory sign
 C:-Warning sign
 D:-Information sign
 Correct Answer:- Option-B
Question27:-Respiratory protective equipment comes under
 A:-PPE 3
 Correct Answer:- Option-A
Question28:-Gas and liquefiable gases come under _________ class of fire.
 A:-Class D
 B:-Class C
 C:-Class B
 D:-Class A
 Correct Answer:- Option-B
Question29:-The saw used for cutting thin wooden accessories like wooden batten round blocks casing capping etc. is
 C:-Tenon saw
 D:-None of these
 Correct Answer:- Option-C
Question30:-The curved part of a file separating the tang from body is
 Correct Answer:- Option-D
Question31:-The angle of punch which is used for witness marks is
 Correct Answer:- Option-A
Question32:-Arc heating occurs when the air between electrodes of opposite polarities become
 D:-none of the above
 Correct Answer:- Option-C
Question33:-_________ calipers are used for marking and layout works.
 A:-Jenny calipers
 B:-Outside calipers
 C:-Inside calipers
 D:-Firm joint calipers
 Correct Answer:- Option-A
Question34:-EPROM stands for

 A:-Electrically Programmable Read Only Memory
 B:-Erasable Programmable Read Only Memory
 C:-Electrically Programmable Random Only Memory
 D:-Erasable Processors Read Only Memory
 Correct Answer:- Option-A
Question35:-A wire measuring 1mm diameter has a cross sectional area of ________
 A:-`1 mm^2`
 B:-`1 cm^2`
 C:-`0.78 mm^2`
 D:-`0.87 mm^2`
 Correct Answer:- Option-C
Question36:-The torque producing movement of the pointer in an indicating instrument is
 Correct Answer:- Option-A
Question37:-In an instrument the pointer comes slowly to its final deflected position if the instrument is ________ damped.
 Correct Answer:- Option-B
Question38:-An electrical circuit that has infinity resistance is called _________ circuit.
 A:-an open
 B:-a short
 C:-a ground
 D:-either (2) or (3)
 Correct Answer:- Option-A
Question39:-No. of light points admissible in one circuit are
 A:-4 points of 400w each
 B:-4 points of 600w each
 C:-8 points of 100w each
 D:-8 points of 200w each
 Correct Answer:- Option-C
Question40:-No. of screws to be used for fixing a round block
 A:-1 No
 B:-2 Nos
 C:-3 Nos
 D:-4 Nos
 Correct Answer:- Option-B
Question41:-In this wiring, to operate 3 lamps in all we require 6 two-way switches is
 A:-Godown wiring
 B:-Tunnel wiring
 C:-Hostel wiring
 D:-Corridor wiring
 Correct Answer:- Option-D
Question42:-Size of copper plate electrode for plate earthing is
 A:-60×60 cm×6.3 mm
 B:-60×60 cm×3.15 mm
 C:-30×30 cm×6.3 mm
 D:-30×30 cm×3.15 mm
 Correct Answer:- Option-B
Question43:-The unit of luminous flux is
 B:-candle power
 D:-meter candle
 Correct Answer:- Option-A
Question44:-To increase the range of an ammeter ________ is used.
 Correct Answer:- Option-C
Question45:-Extension of MS Word file is
 Correct Answer:- Option-A
Question46:-Which one of the following is a basic unit of MS Excel?
 Correct Answer:- Option-C
Question47:-Isolation of fire from the supply of oxygen by blanketing it with foam, sand etc. comes under which fire
extinguishing method
 Correct Answer:- Option-B
Question48:-Edison screw type lamp holders are used for lamp with _________ wattage range.
 A:-above 600 w
 B:-upto 200 w
 C:-above 200 w below 600 w
 D:-above 200 w below 300 w
 Correct Answer:- Option-D
Question49:-To increase the ampere hour rating, the cells are to be connected in
 B:-series parallel
 C:-parallel series
 Correct Answer:- Option-A
Question50:-"Don't try to stop a running machine with hands" comes under
 A:-General safety
 B:-Personal safety
 C:-Machine safety
 D:-Social safety
 Correct Answer:- Option-B
Question51:-The ripple factor of a power supply is a measure of
 A:-Its voltage regulation
 B:-Diode rating
 C:-Its filter efficiency
 D:-Purity of power output
 Correct Answer:- Option-D
Question52:-The function of a commutator in a DC generator is
 A:-To change DC to AC
 B:-To collect current from conductors
 C:-To change AC to DC
 D:-To conduct the current to the brushes
 Correct Answer:- Option-C
Question53:-The field coils of a DC generator are usually made of
 C:-Cast iron
 Correct Answer:- Option-B
Question54:-In a two point starters the series resistors is required for
 A:-To limit the starting current
 B:-Starting the motor
 C:-To limit the back emf
 D:-To give heavy current at starting
 Correct Answer:- Option-A
Question55:-In two watt meter method of measuring three phase power one of the wattmeter shows zero reading what
would be the value of the power factor in this case
 Correct Answer:- Option-B

Question56:-Rotor of an induction motor runs always
 A:-At synchronous speed
 B:-At more than synchronous speed
 C:-At less than synchronous speed
 D:-In opposite direction to the field
 Correct Answer:- Option-C
Question57:-The difference between the synchronous speed and the actual rotor speed is called
 A:-Fractional slip
 B:-Slip speed
 C:-Rotor speed
 D:-Actual rotor speed
 Correct Answer:- Option-B
Question58:-The slip of an induction motor will be low when
 A:-Rotor Resistance is low
 B:-Friction loss is low
 C:-Windage loss is low
 D:-Rotor resistance is high
 Correct Answer:- Option-A
Question59:-The split rings are made of
 D:-Hard drawn copper
 Correct Answer:- Option-D
Question60:-Which motor should not be started on no load?
 A:-Shunt motor
 B:-Cumulative compound motor
 C:-Series motor
 D:-Differential compound motors
 Correct Answer:- Option-C
Question61:-The barrier potential for a silicon PN junction is _______V.
 A:-0.3 V
 B:-0.7 V
 C:-0.2 V
 D:-0.5 V
 Correct Answer:- Option-B
Question62:-In which DC generator the armature and field current will be equal?
 B:-Long shunt compound
 C:-Short shunt compound
 Correct Answer:- Option-D
Question63:-Which type of starter used to start both shunt and compound DC motor?
 A:-Three pointer starter
 B:-Two point starter
 C:-DOL starter
 D:-Star-delta starter
 Correct Answer:- Option-A
Question64:-When the speed of alternator increases the frequency?
 C:-Remains same
 D:-None of the above
 Correct Answer:- Option-B
Question65:-Alternators are rated in
 D:-Full load current
 Correct Answer:- Option-C
Question66:-Most widely used transformer oil is
 A:-Animal oil
 B:-Cooking oil
 C:-Vegetable oil
 D:-Mineral oil
 Correct Answer:- Option-D
Question67:-The line insulators are made up to
 B:-Porcelain clay
 Correct Answer:- Option-B
Question68:-Epoxy compound used with underground cable does not need
 Correct Answer:- Option-A
Question69:-The chemical used in breather is
 A:-Copper sulphate
 B:-Sodium chloride
 C:-Silica gel
 D:-Potassium chloride
 Correct Answer:- Option-C
Question70:-Graphite is used in nuclear power plant as a
 Correct Answer:- Option-D
Question71:-Which of the following power plants is free from environmental problems?
 A:-Diesel engine
 B:-Nuclear power plant
 C:-Hydro electric power plant
 D:-Steam power plant
 Correct Answer:- Option-C
Question72:-Which type of insulator is used in stay wire?
 A:-Egg type
 B:-Pin type
 C:-Shackle type
 D:-Suspension type
 Correct Answer:- Option-A
Question73:-Which of the following power plant has the maximum capital cost?
 A:-Steam power plant
 B:-Nuclear power plant
 C:-Hydro electric power plant
 D:-Diesel power plant
 Correct Answer:- Option-B
Question74:-The working principle of a transformer is
 A:-Static induction
 B:-Self induction
 C:-Mutual induction
 D:-None of the above
 Correct Answer:- Option-C
Question75:-The colour of neutral wire of a cable is
 Correct Answer:- Option-D
Question76:-The amount of matter in a body is called
 D:-none of these
 Correct Answer:- Option-A
Question77:-The rate of change of position in a particular direction is called
 D:-none of these
 Correct Answer:- Option-B
Question78:-The volume of a hemisphere is
 A:-`(4)/(3) pi r^3`
 B:-`(3)/(3) pi r^3`
 C:-`(2)/(3) pi r^3`
 D:-`(1)/(3) pi r^3`
 Correct Answer:- Option-C
Question79:-Perimeter of a circle is
 A:-1`pi r`
 B:-2 `pi r`
 C:-3 `pi r`
 D:-4`pi r`
 Correct Answer:- Option-B
Question80:-One gallon is
 A:-1.546 litres
 B:-2.546 litres
 C:-3.546 litres
 D:-4.546 litres
 Correct Answer:- Option-D

Question81:-60 Km/hr into m/sec is
 A:-10.66 m/sec
 B:-12.66 m/sec
 C:-14.66 m/sec
 D:-16.66 m/sec
 Correct Answer:- Option-D
Question82:-The property of material to be drawn into thin sheets without fracture is
 D:-None of these
 Correct Answer:- Option-B
Question83:-The multiplication 0.1 × 0.001 is equal to
 Correct Answer:- Option-D
Question84:-Multiply 6/13 by the reciprocal of 9/16 is equal to
 D:-None of these
 Correct Answer:- Option-B
Question85:-`(3ab)^2` is equal to
 D:-None of these
 Correct Answer:- Option-B
Question86:-One radian measure is equal to
 Correct Answer:- Option-B
Question87:-Sin`theta` is equal to
 A:-Opposite side / adjecent side
 B:-Adjecent side / hypotenus
 C:-Opposite side / hypotenus
 D:-None of these
 Correct Answer:- Option-C
Question88:-The value of 1/tan45 is equal to
 Correct Answer:- Option-B
Question89:-The value of `"sin^2"` 60+`"cos^2"` `` 60 is equal to
 Correct Answer:- Option-B
Question90:-Heat is a form of
 D:-None of these
 Correct Answer:- Option-C
Question91:-Conventional representation of 1st angle and 3rd angle projection includes
 A:-Two eccentric circles
 B:-Two concentric circles
 C:-Two circle of same diameter
 D:-None of these
 Correct Answer:- Option-B
Question92:-700×500×15 mm drawing board designated by
 Correct Answer:- Option-C
Question93:-594×841 trimmed size of drawing sheet designated by
 Correct Answer:- Option-B
Question94:-In 3rd angle projection the Top view (plan) is drawing
 A:-Right side of elevation
 B:-Left side of elevation
 C:-Below the elevation
 D:-Above the elevation
 Correct Answer:- Option-D
Question95:-In 1st angle projection the end view from right side of an object is drawing
 A:-Right side of elevation
 B:-Left side of elevation
 C:-Right side of plan
 D:-Left side of plan
 Correct Answer:- Option-B
Question96:-The symbol represent
 A:-A.C. Motor
 B:-D.C. Motor
 C:-A.C. Generator
 D:-D.C. Generator
 Correct Answer:- Option-B
Question97:-The angle of isometric axis is
 Correct Answer:- Option-B
Question98:-The number of a pentagon is
 Correct Answer:- Option-C

Question99:-The isometric view of a circle is
 Correct Answer:- Option-B
Question100:-The length of an arrow head is
 A:-Same as width
 B:-Two times of width
 C:-Three times of width
 D:-Four times of width
 Correct Answer:- Option-C

ITI Electronic Mechanic Questions with Answer

Question No. 1:-Which oscillator that can be fabricated in IC form?
 A:-Wein Bridge Oscillator
 B:-Crystal Oscillator
 C:-RC Phase Shift Oscillator
 D:-Relaxation Oscillator
 Correct Answer:-  D:-Relaxation Oscillator

Question No. 2:-The type of connector used in telephones
 Correct Answer:-  B:-RJ-11

Question No. 3:-The light detector used in optical fibre communication
 A:-PIN Diode

 C:-(1) and (2)
 Correct Answer:- C:-(1) and (2)
Question No. 4:-Class C amplifiers are commonly used as ____________ Amplifiers.
 A:-Radio frequency
 B:-AF voltage
 C:-AF current
 D:-Pulse amplifier
 Correct Answer:-  A:-Radio frequency
Question No. 5:-The number of select lines in a 1 to 8 de-multiplexer is
 Correct Answer:- Option-B
Question No. 6:-Number of address lines required to address a memory system made of 2 modules of 1 MB memory chips
 D:-None of these
 Correct Answer:- C:-21

Question No. 7:-A Karnaugh Map is an abstract form of ___________ diagram.
 A:-Cycle diagram
 B:-Block diagram
 C:-Logical diagram
 D:-Venn diagram
 Correct Answer:- Option-D
Question No. 8:-A logic circuit that has memory is
 A:-Sequential circuit
 B:-Combinational circuit
 C:-Both (1) and (2)
 D:-None of these
 Correct Answer:- Option-A
Question No. 9:-The basic block in an HDL program is called
 D:-Model instantiation
 Correct Answer:- Option-C
Question No. 10:-Number of bits in a Binary Coded Decimal Number
 Correct Answer:-  B:-4
Question No. 11:-All Keywords in c programming is
 A:-Lower case
 B:-Upper case
 C:-Both upper and lower cases
 D:-Digits only
 Correct Answer:- Option-A

Question No. 12:-In the specifications of a network interface card 10/100 stands for
 A:-Length of Media
 B:-Mega bits per second
 D:-None of these
 Correct Answer:- B:-Mega bits per second
Question No. 13:-Ripple factor of Halfwave rectifier is
 Correct Answer:- Option-A
Question No. 14:-The ideal data speed of 5 G mobile network
 A:-20 GB/s
 B:-5 GB/s
 C:-1 GB/s
 D:-22.5 GB/s
 Correct Answer:- Option-A
Question No. 15:-Which of the following has highest internal resistance?
 A:-A constant current source
 B:-A constant voltage source
 C:-Both of these
 D:-None of these
 Correct Answer:-  A:-A constant current source

Question No. 16:-A DC current source has a short circuit current of 4 mA and an open-circuit voltage of 20 V. The internal
resistance is
 A:-5 KΩ
 B:-100 Ω
 C:-4 KΩ
 D:-100 KΩ
 Correct Answer:- Option-A

Question No. 17:-The overall gain of RC coupled amplifier is small due to
 A:-Large bandwidth
 B:-Loading effect of successive stages
 C:-Impedance of capacitor
 D:-None of these
 Correct Answer:- Option-B
Question No. 18:-Intrinsic standoff ratio is the characteristics of
 B:-Tunnel diode
 Correct Answer:- D:-UJT

Question No. 19:-Which logic family has the lowest propagation delay?
 A:-Standard TTL
 D:-Schottky TTL
 Correct Answer:-  D:-Schottky TTL

Question No. 20:-Stability of a circuit increases with
 A:-Positive feedback
 B:-Negative feedback
 C:-Current series feedback
 D:-Both (1) and (2)
 Correct Answer:- Option-B
Question No. 21:-An emitter follower is
 A:-Current series feedback circuit
 B:-Voltage series feedback circuit
 C:-Both (1) and (2)
 D:-None of these
 Correct Answer:- Option-A

Question No. 22:-An example for wave shaping circuit is
 A:-Schmitt Trigger
 B:-RC Relaxation oscillator
 C:-Astable Multi-vibrator
 D:-None of these
 Correct Answer:-  A:-Schmitt Trigger

Question No. 23:-Number of diodes in a bridge rectifier is
 D:-None of these
 Correct Answer:- Option-B
Question No. 24:-Bucking voltage is another name for
 A:-Back emf
 B:-Breakdown voltage
 C:-Saturation voltage
 D:-Knee voltage
 Correct Answer:- Option-A

Question No. 25:-The gain of amplifier in RC phase shift oscillator should be
 Correct Answer:- D:-29


1.The ratio of voltage and electric current in a closed circuit
a. remains constant
b. varies
c. increases
d. falls

2.The capacity of a battery is expressed in
 a. amperes
b. amperes-hour
c. watts
d. watt-hour

 3. Out of the following which is not a poor conductor ?
 a. Cast iron
b. Copper
c. Carbon
d. Tungsten

4. The resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of one
branch is 18 ohms, what is the resistance of the other ?
(a) 18 Q
(b) 36 Q


1. What type of thread lead screw of lathe has ________________
a) Acme  
b) Square
c) Whit worth 
d) Butters

Answer:b) Square

2. In a riveted joint the edges of plates are simply laid over each other and riveted.
 This joint is called
a) Butt joint
b) Lap joint
c) Edge joint
d) Corner joint

Answer:b) Lap joint

3. While drilling the drive is overhated due to its
a) Drill point is not in centre 
b) Cooling is sufficient
c) Cutting speed is too high
d) Rough holes 

Answer:c) Cutting speed is too high

4. In which method of manual bending of sheet metal the folding line is to coincide with edge
 of bending tool?
a) Folding bar method
b) C' clamp and hardwood
c) Angle iron and 'C' clamp 
d) Hatched stake method'

Answer:d) Hatched stake method'

5. The body of aeroplane is made of aluminum because to its ________
a) weight
b) Melting point 
c) Point 
d) Colour 

Answer: a) weight


1. Natural rubber is obtained from milky sap of tropical trees.
(a) Yes
(b) No
Answer: (a) Yes

2. In capacitance grading a homogeneous dielectric is used.
(a) Yes
(b) No
Answer: (b) No

3. It is difficult to maintain oil filled cables.
(a) Yes
(b) No
Answer: (a) Yes


1. Which fastener has threading on both sides__________
 a) bolt
b) nut
c) screw
d) stud

Answer: d) stud

2. Which fastener is weeding
 a) temporary
b) semi-permanent
c) Permanent 
d) None of three

Answer: c) Permanent 

3. What is an angle of angle plate _____________
 a) 30 degree
b) 45 degree
c) 60 degree
d) 90 degree

Answer: d) 90 degree


1.Morse taper is one of the internationally accepted standard tapers. The morse taper are available in numbers from?
A. 0 to 7
B. 0 to 8
C. 2 to 7
D. 1 to 8

Answer: A.0 to 7

2. A product is said to have the quality when?
A. The choice of material is right
B. It appears to be very good
C. It is fit for use
D. Its shape and dimensions are within the limits

Answer: C.It is fit for use

3.A finish cut is given to improve the surface finish of a rough milled workpiece?
A. Increase cutting speed, reduce feed rate and depth of cut
B. Increase feed rate, depth of cut and reduce cutting speed
C. Increase feed rate, depth of cut and cutting speed
D. Decrease cutting speed, feed rate and depth of cut

Answer: A.Increase cutting speed, reduce feed rate and depth of cut

4.Which one of the following groups of properties enables the manufacture of chain hooks from wrought iron?
A. Ductillity, malleability and hardness
B. Malleability, ductility and toughness
C. Hardness, toughness and ductility
D. Hardness, toughness and brittleness