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


1. The correct bevel of rounded blade is restored by grinding it over ___________
A. Oil stone
B. Sand paper
C. Emery paper
D. Grind tone

Ans: - D. Grind stone

2. GI pipe sockets are designated by ____________
A. Its nominal bore
B. Its length
C. Nominal bore of pipe for which it is meant
D. Its weight

Ans: - C. Nominal bore of pipe for which it is meant

3. Compressive strength of any individual brick____________
A. Shall be more than 10%
B. Shall be less than 10%
C. Shall not be less than 80% of specified strength
D. Shall be more than 8% of specified strength

Ans: - C. Shall not be less than 80% of specified strength

4. GI pipe available in market are of length ___________
A. 6m
B. 20m
C. 16m
D. 8m

Ans: - A. 6m