1)
The
ratio of DC power output to applied input AC power in the rectifier is known as
__________.
a)
Ripple
factor
b) Rectifier efficiency
c)
Peak
Inverse Voltage.
d)
Ripple
frequency
Ans: - b
2)
Which
of the following mathematical relationship is correct in case of
transistor? (Multiple choice)
a) IE = IB + IC
b)
IE
= IB - IC
c)
IC
= IB + IE
d)
IC = IE - IB
Ans: - a, d
3)
_________
is the process of the solder molecules combining with the molecules of the
metals being soldered.
a)
Soldering
b)
Desoldering
c) Wetting
d)
Tinning
Ans: - c
4)
State
whether following statement is true or false.
“Solder bridge results when two adjacent foils are
shorted together by solder.”
a) True
b)
False
Ans: - a
5)
A
larger resistor has __________ wattage rating.
a)
Same
b)
Lower
c) Higher
d)
None
of them
Ans: - c
6)
State
whether following statement is true or false.
“Tolerance refers to the maximum amount of power or
heat that the resistor can dissipate without burning up or significantly
changing the value.”
a)
True
b) False
Ans: - b
7)
A
germanium atom contains
a)
Four
protons
b) Four valence electrons
c)
Only
two electrons orbits
d)
Five
valence electrons
Ans: - b
8)
inductance of inductor is measured in
--------.
a. henry
b. farad
c.ohm
d.volt
ans. HENRY
109)----------device
has ablity to oppose change in current flow.
a. resistor
b. inductor
c. capacitor
d. conductor
ans. INDUCTOR
110)inductance in
series are mathematically treated as --------
a. sum of individual inductance
b. product of individual inductance
c. reciprocal of inductance
d. inverse of inductance
ans. sum of
individual inductance
111)inductance in
parallel are mathematically treated as ------
a. 1/L=1/L1+1/L2+1/L3+1/L4+.....
b. 1/L=L1+L2+L3+L3+.......
c. L=L1+L2+L3+......
D. L=1/L1+1/L2+1/L3+1/L4+.....
ANS. 1/L=1/L1+1/L2+1/L3+1/L4+.....
112)Inductor can
be used as-------
a. filter
b. regulator
c. rectifier
d. amplifier
ans. filter
113)inductor block
------signals
a. A.C.
b. D.C.
c. both A.C. and D.C.
d. none of above
ANS. A.C.
114)inductor
passes --------- signals.
a. A.C.
b. D.C.
c. both A.C. and D.C.
d. none of above
ANS.D.C.
115)for given
value of inductance, the time is inversely proportional to -------------
a. resistance
b. inductance
c. voltage
d. current
ANS. resistance
116)the -------
device has ablity to store electrons and release them at later time.
a. resistor
b. inductor
c. capacitor
d. none of above.
ANS.capacitor
117)the
capacitance of the capacitor is measured in ---unit
a. ohm
b.volt
c.ampere
d.farad
Ans.farada
118) capacitance
of the capacitor is calculated by formula C=0.225K(A/----)
a. D
b. L
c. T
d. None
Ans. D
119)the act of
storing energy is called -------of the capacitor.
a. charging
b. discharging
c. changing
d. none of above
ANS. charging
120) changing
current on an inductor induces a ----------
a. EMF
b. current
c. self inductance
d. mutual inductance
ANS. EMF
121)
----------current changes its direction of flow periodically.
a. A.C.
b. D.C.
c. both a and b
d. none.
ANS. A.C.
122) frequency of
given signal is calculated by formula F=1/--------
a.T
b.V
c.I
d.NONE
ANS. T
123) A.C. stands
for----------
a. alternating current
b. direct current
c. absolute current
d. advance current
ANS. alternating
current
124) peak-to peak
value= --------*peak value
a.
2
b. 3
c. 1.5
d. none
ANS. 2
125)peak value is
the --------
a.
maximum value
b. minimum value
c. average value
d. none
ANS. maximum value
126)average value
is calculated by Average value=---*peak value
a. 0.731
b. 0.636
c. 1.414
d. 0.7
ANS. 0.636
127)effective
value=---*peak value
a. 0.731
b. 0.636
c. 1.414
d. 0.707
ANS. 0.707
128)time required
to complete one cycle is called as--------
a. frequency
b. period
c. peak
d. none
ANS. Period
129) number of
cycles completed in one second is called as------
a. frequency
b. period
c. time
d. none
ANS. frequency
130) capacitive
reactance Xc=--------
a. 1/2piFC
b. 1/2piFL
c. 1/2piCL
d. none
ANS. 1/2piFC
131)inductive
reactance XL=--------
a. 2piFC
b. 2piFL
c. 2piCL
d. none
ANS. 2piFL
132)frequency of
A.C. is --------
a. 20Hz
b. 50Hz
c. 120Hz
d. 200Hz
ANS. 50Hz
133)working
principle of transformer is based on
----------
a. mutual inductance
b. self inductance
c. coupling
d. none
ANS. mutual
inductance
134) ---------device is used to transfer
alternating current from one circuit to another circuit
a. transistor
b. transformer
c. multivibrator
d. none
ANS.transformer
135) in the
transformer voltage ratio is equal to --------ratio.
a. turns
b. resistance
c. power
d. none
ANS. Turns
136) coefficient
of coupling varies between------------
a. 0 and 1
b. 1 and 2
c. 1 and 10
d. none
ANS. 0 and 1
137)Es/Ep=-------
a. Vs/Vp
b. Ns/Np
c. Vp/Vs
d. Is/Ip
ANS. Ns/Np
138) current ratio
is ---------proportional to turns ratio.
a. directly
b. inversely
c. equally
d. none
ANS. inversely
139)eddy current
losses can be reduced by using ----of metal core rather than solid block.
a. thin sheets
b. thick sheets
c. single block
d. none
ANS. thin sheets
140)hysteresis
loss increases with --------
a. frequency
b. voltage
c. current
d. none
ANS. frequency
141) sharing of
electrons creates-------- bond
a. equivalent
b. covalent
c. both a and b
d. none
ANS. covalent
142)pure
semiconductor material is also called as ---------materials.
a. intrinsic
b. extrisic
c. impure
d. none
ANS. intrinsic
multiple choise
143)------- and
--------- are the types of extrinsic semiconductor.
a. n-type
b. p-type
c. a-type
d. none
ANS. n-type and p-type
144)capacitance is
measured by ----------factors(select 3)
a. dielectric constant
b. area of the plate
c. distance between plates
d. number of electrons
ANS. 1.dielectric
constant,
2.area of the plate,
3.distance between plates
145)inductor
passes -------- signal and blocks-------(select 2)
C.
b. D.C.
c. voltage
d. current
ANS. 1. D.C.
2. A.C.
146)an A.C.
changes in both -------and -------(select 2)
a.value
b.direction
c.time
d.frequency
ANS. 1.value
1.direction
146)losses in the
transformer are-------(select 3)
a.eddy current
b.hysteresis
c.core
d.resistance
ANS. 1.eddy current
2.hysteresis
3.core
147)Digital
computer consists of ............... (select 3)
a. Memory
b.input unit
c.power supply
d.cpu
e.output unit
ans-b,d,e
148)Computer
performs four basic functions
a.data processing
b.data storage
c.data movement
d.syatem
interconnection
e.control
f. sequencing
ans-a,b,c,e
149)Functional
units of computer are
a.ALU
b.I/O unit
c.control unit
d.processor unit
e.memory unit
ans-b,d,e
150)Method of
arbitration is classified in to two parts
a.dedicated
b.centralized
c.distributed
d.multiplexed
ans-b,c
151)PCI stands for
a.programmable
controller interrupt
b.programmable
component interconnect
c.peripherial
component interconnect
d.peripherial
component interrupt
ans-c
152)interrupt
request indicates that
a.interrupt is
pending
b.interrupt
occurance
c.data transfer
d.pending
interrupt ACK
ans-a
153)....... holds
the address of the next instruction to be fetched
a.RAM
b.Programcounter
c.SP
d.registers
ans-b
154)stack pointer
points the next instruction to fetched
a.true
b.false
ans-a
155)processor
comprises of input unit
a.true
b.false
ans-b
156)computer
exchange the data with memory using MAR & MBR
a.true
b.false
ans-a
157)pentium
processor has ......... bit address bus
a.8
b.32
c.64
d.16
ans-b,d
158)control unit
consists of two units
a.ALU
b.I/O unit
c.microcode
sequencer
d.microcode
control POm
ans-b,d
159)microprocessor
has three power states
a.normal
b.low power
c.high power
d.very low
power
e.very high power
ans-a,b,d
160)superscalar
architecture is executed using two instruction pipeline
a.u pipes
b.v pipes
c.w pipes
d.x pipes
ans-a,b
161)very low power
mode indicates
a.internal
instruction procssing
b.cpu internal
operation
c.no operation
ans-c
162)BTB means
a.branch target
buffer
b.branch transfer
buffer
c.buffer transfer
branch
d.buffer target
branch
ans-a
163)SECC means
a.single encoder
contact cartridge
b.single Edege
contact cartridge
c.several edge
control cartridge
d.several edge
control contact
ans-b
164)prefetch &
decode stages are common in u & v pipe lines
a.true
b.false
ans-a
165)PPGA
microprocessor fits into socket 370
a.true
b.false
ans-a
166)pentium
microprossor consists of five different pipelines
a.true
b.false
ans-a
167)binary
language is convertedinto english by using interpreter or compiler
a.true
b.false
ans-b
168)machine
independent languages are called as low lecel languages
a.true
b.false
ans-b
169)nibble stands
for group of 8 bits
a.true
b.false
ans-b
170)three types of
languages used by computer
a.machine
b.assembly
c.high
d.computer
e.english
ans-a,b,c
171)byte is
defined as
a.single bit
b.group of 8 bit
c.group of 4 bit
d.group of 2
nibble
ansb,d
172)the program
which convers the english word into binary is called as
a.converter
b.compiler
c.assembler
d.controller
ansb,c
173)memory is made
up of ....... material
a.semiconductor
b.conductor
c.insulator
d.metal
ans-a
174)1 KB is equal
to
a.1000
b.1026
c.1024
d.1124
ans-c
175)microprocessor
recognizes 7 processes a group of bits called
a.byte
b.length
c.nibble
d.word
ans-d
176)a group of
programs is called as
a.hardware
b.software
ans-b
177)UPS are
categorized as
a.offline ups
b.standby ups
c.online or
inline ups
d.line interactive
ans-b,c,d
178)ESD means
a.electro
static discharge
b.electronics
storage device
c.electronics
storage discharge
d.electronics
static discharge
ans-a
179)an electrical
charge in an imbalanced state is reffered as
a.dynamic charge
b.electron
c.proton
d.static charge
ans-d
180)UPS stans for
a.uni power supply
b.uninterrupted
power supply
c.universal power
supply
d.unique power
supply
ans-b
181)inverter
converts
a.DC to AC
b.AC to DC
c.DC to DC
d.AC to AC
ans-a
182)the fire
extinguisher uses
a.hydrogen
b.oxigen
c.carbon
d.water
ans-c
182)a low relative
humidity can produce
a.EMI
b.RFI
c.EMR
d.ESD
ans-d
183)power factro
is defined as ratio of true power to apparent power
a.true
b.false
ans-a
184)VA=
volts*ammeter
a.true
b.false
ans-b
185)power is
measured in volts
a.true
b.false
ans-b
186)
Binary
number system ranges from
a. 0 to 9
b. 0 to F
c. 0 to 1
d. 0 to 2
Ans: - c
186)__________
performs the arithmetic and logic functions in CPU.
a.ALU
b.Decode unit
c.Control unit
d.Bus unit
Answer: A
187)Byte is defined
as a group of ____ bits.
a.4
b.8
c.16
d.32
Answer: B
187)Nibble is
defined as a group of ____ bits.
a.4
b.8
c.16
d.32
Answer: A
188)________is like
the pages of a notebook with space for a fixed number of binary numbers on each
line.
a.ALU
b.Memory
c.CPU
d.Control Unit
Answer: B
189)__________ unit
manages the instruction flow from the main memory of computer.
a.Prefetch
b.Bus
c.Decode Unit
d.Instruction
Cache
Answer: B
190)___________
analyzes the data and checks in the instruction cache or computer's main memory
for the instructions.
a.Prefetch
b.Bus
c.Decode Unit
d.Instruction
Cache
Answer: A
191)_____________
unit converts the complex machine language instructions into binary digital
code.
a.Prefetch
b.Bus
c.Decode
Unit
d.Instruction
Cache
Answer: C
192)Packaging is the
process or method used for connecting ____to the motherboard.
a.thermal plate
b.Head sink
c.microprocessor
d.fan
Answer: C
193)In ________
packaging, the microprocessor is entirely covered with a black plastic housing.
a.SECC
b.PPGA
c.PGA
d.OOI/OLGA
Answer: A
194)________
packaging uses a square box to pack the microprocessor, which fits into the
Socket 370.
a.PPGA
b.SECC
c.SECC2
d.PAC
Answer: A
195)Code cache has
______ dedicated cache for providing instructions for each execution pipelines
of the processor.
a.8KB
b.16KB
c.32Kb
d.64KB
Answer: A
Answer: A
196)There are _____
prefetch buffers in the processor.
a.One
b.Two
c.Three
d.Four
Answer: D
197)The
____________is also called as the Microcode Unit.
a.Instruction
Decode Unit
b.Control
Unit
c.Address
Generators
d.Floating
Point Unit
Answer: B
198)For every
pipeline, there are two common stages, fetch and initial __________.
a.execute
b.decode
c.write back
d.error
reporting
Answer: B
199)Prefetcher
requests the instructions present in the __________.
a.Data Cache
b.Prefetch Buffer
c.Code Cache
d.Control Unit
Answer: C
200)________________is
used for storing the address of the location which needs to be accessed.
a.MAR
b.MBR
c.PC
d.IC
Answer: C