Elex Product Design Test Questions - Set 3

1)   Which among the following components is not used in an over voltage crowbar protection circuit?

a. Resistor
b. Capacitor
c. Inductor
d. SCR
Answer  Explanation  Related Ques

ANSWER: Inductor

Explanation:
No explanation is available for this question!


2)   What is the operating temperature range of military electronics products?

a. 70°C to 100°C
b. -25°C to 85°C
c. -55°C to 125°C
d. -75°C to 90°C
Answer  Explanation  Related Ques

ANSWER: -55°C to 125°C

Explanation:
No explanation is available for this question!


3)   Which among the following belongs to the category of logistic support type of requirement?

a. Temperature condition
b. Stress condition
c. Duty Cycle
d. Maintenance testing
Answer  Explanation  Related Ques

ANSWER: Maintenance testing

Explanation:
No explanation is available for this question!


4)   Which process of  product development cycle plays a crucial role in determining the suitability of requirements in accordance to the expected system solution along with the quantitative description?

a. Validation
b. Verification
c. Integration
d. Field Testing
Answer  Explanation  Related Ques

ANSWER: Validation

Explanation:
No explanation is available for this question!


5)   How does it become possible to avoid an electrolytic freezing at low temperature especially due to temperature oriented testing carried out on an enclosure?

a. By connecting two capacitors in parallel
b. By connecting two capacitors in series
c. By connecting two resistors in parallel
d. By connecting two resistors in series
Answer  Explanation  Related Ques

ANSWER: By connecting two capacitors in parallel

Explanation:
No explanation is available for this question!


6)   Which type of noise coupling deals with the transmission or reception of propagating an electromagnetic energy in the circuit by yielding far-field effects?

a. Conductive
b. Inductive or capacitive
c. Radiated
d. All of the above
Answer  Explanation  Related Ques

ANSWER: Radiated

Explanation:
No explanation is available for this question!


7)   What is the maximum limit of intense threat level high power radio frequency in HIRF testing so as to ensure the operational safety of the equipment without any interruption?

a. Upto 1200 volts per meter
b. Upto 2400 volts per meter
c. Upto 4200 volts per meter
d. Upto 7200 volts per meter
Answer  Explanation  Related Ques

ANSWER: Upto 7200 volts per meter

Explanation:
No explanation is available for this question!


8)   Which among the below specified conduction noise is generated due to magnetic coupling and is measured between each power line and ground especially during EMI transmission in SMPS?

a. Differential Mode Noise
b. Normal-Mode Noise
c. Transverse-Mode Noise
d. All of the above
Answer  Explanation  Related Ques

ANSWER: All of the above

Explanation:
No explanation is available for this question!


9)   How does the Line Impedance Stabilization Network (LISN) permit the connection of power leads of test items to the power mains?

a. By passing only AC or DC power to the test sample
b. By blocking the power mains R-F from coupling into the test sample
c. By forbidding the test sample's electromagnetic noise from getting back into the power bus
d. All of the above
Answer  Explanation  Related Ques

ANSWER: All of the above

Explanation:
No explanation is available for this question!


10)   What does the parts key in the standard PCB documents refer to?

a. Part number abbreviations
b. Package size
c. Lead spacing
d. All of the above
Answer  Explanation  Related Ques

ANSWER: All of the above

Explanation:
No explanation is available for this question!


11)   Which among the following proves to be more efficient and useful to new users by ensuring step-by-step guidance for an accomplishment of any task while organizing the user documentation?

a. Tutorial approach
b. Thematic approach
c. Alphabetical approach
d. None of the above
Answer  Explanation  Related Ques

ANSWER: Tutorial approach

Explanation:
No explanation is available for this question!


12)   Which type of documentation exhibits an overview of software in addition to the relations with system environment as well as construction principles?

a. Architecture documentation
b. Technical documentation
c. End-user documentation
d. Marketing documentation
Answer  Explanation  Related Ques

ANSWER: Architecture documentation

Explanation:
No explanation is available for this question!


13)   What is/ are the major purpose/s of marketing type of documentation?

a. To elicit the potential user about the product
b. To apprise and convince the user about the meeting the expectations through the product performance
c. To elaborate the position of product in comparison to several other substitutes
d. All of the above
Answer  Explanation  Related Ques

ANSWER: All of the above

Explanation:
No explanation is available for this question!


14)   Which method prevents the operating condition that exceeds beyond 50% of the maximum rating in order to improve the system reliability?

a. Parts Improvement Method
b. Structural Redundancy
c. Effective & creative Design
d. Derating of components
Answer  Explanation  Related Ques

ANSWER: Derating of components

Explanation:
No explanation is available for this question!


15)   What is /are the major purpose/s of using a bath tub curve?

a. To determine the capital maintenance in defense equipments
b. To compute lifts in the distillation column
c. To decide the maintenance of equipment
d. All of the above
Answer  Explanation  Related Ques

ANSWER: All of the above

Explanation:
No explanation is available for this question!


16)   What is the failure cost of a product possessing reliability R=1?

a. Zero
b. Unity
c. Infinity
d. None of the above
Answer  Explanation  Related Ques

ANSWER: Zero

Explanation:
No explanation is available for this question!


17)   Which among the following exhibits inversely proportional relationship with the reliability?

a. Production cost
b. Design and development cost
c. Maintenance and repair cost
d. All of the above
Answer  Explanation  Related Ques

ANSWER: Maintenance and repair cost

Explanation:
No explanation is available for this question!


18)   Which among the below mentioned types of redundancy exhibits maximum failure rate?

a. Cold standby
b. Warm or Tepid
c. Hot or Active
d. All of the above
Answer  Explanation  Related Ques

ANSWER: Hot or Active

Explanation:
No explanation is available for this question!


19)   Which type/s of Gaussian parameter distribution represents statistically reduced nominal parameters by the mechanism of multiplication of distribution?

a. Relative Variation
b. Absolute Variation
c. Bimodal
d. All of the above
Answer  Explanation  Related Ques

ANSWER: Bimodal

Explanation:
No explanation is available for this question!


20)   Which terminology enables the user to develop certain novel features and modify the designs as per the requirement level?

a. Simulation
b. Prototype
c. Product
d. Quality
Answer  Explanation  Related Ques

ANSWER: Prototype

Explanation:
No explanation is available for this question!


21)   Which instrument is used in Wein bridge oscillator for fault finding purpose?

a. Analog oscilloscope
b. Logic analyzer
c. MSO
d. DSO
Answer  Explanation  Related Ques

ANSWER: Analog oscilloscope

Explanation:
No explanation is available for this question!


22)   Which consequence/s of transmission lines arise/s are responsible for generating the signal integrity problems associated with the high speed designs?

a. Overshoot
b. Undershoot
c. Ringback
d. All of the above
Answer  Explanation  Related Ques

ANSWER: All of the above

Explanation:
No explanation is available for this question!


23)   What is the sampling rate of an analog real time oscilloscope (MSO)?

a. 2 Gs/s
b. 20 Gs/s
c. 40 Gs/s
d. 100 Gs/s
Answer  Explanation  Related Ques

ANSWER: 2 Gs/s

Explanation:
No explanation is available for this question!


24)   What is the purpose of consuming low power in tachometer or inexpensive frequency counter ICM7555 /CMOS 555?

a. Generation of gate signal
b. Generation of RESET signal
c. Generation of STORE signal
d. All of the above
Answer  Explanation  Related Ques

ANSWER: All of the above

Explanation:
No explanation is available for this question!


25)   Which phase of 31/2 digit LED Panel meter (7107/7106) to the process of conversion reveals the averaging of signal input for about 1000 clock pulses?

a. Auto-zero phase
b. Signal Integrate Phase
c. Reference Integrate Phase
d. All of the above
Answer  Explanation  Related Ques

ANSWER: Signal Integrate Phase

Explanation:
No explanation is available for this question!


26)   Why are the silicones utilized in high brightness LED packages?

a. For protection and thermal management
b. For light-extraction
c. For fabrication of optical parts
d. All of the above
Answer  Explanation  Related Ques

ANSWER: All of the above

Explanation:
No explanation is available for this question!


27)   Which benefits can be provided by Silicones due to its availability for wide range of viscosities?

a. Automated efficiency in assembly process
b. Reliability of dispense and moulding processes
c. Corrosion minimization
d. Flexibility in stress absorption in package
Answer  Explanation  Related Ques

ANSWER: Reliability of dispense and moulding processes

Explanation:
No explanation is available for this question!


28)   Which element of IDE performs the debugging integration as well as tracking of code execution?

a. Compiler
b. Project management
c. Source Code Editor
d. IDE debugger
Answer  Explanation  Related Ques

ANSWER: Source Code Editor

Explanation:
No explanation is available for this question!


29)   Which among the below mentioned types of software bugs does not belong to the 'Execution Category'?

a. Semantic Error
b. Syntax Error
c. Truncation Error
d. Interface Error
Answer  Explanation  Related Ques

ANSWER: Interface Error

Explanation:
No explanation is available for this question!


30)   Malice type of software bug under the Intent category occurs due to __________

a. Limits on operation
b. Coding operation inefficiency
c. Incorrect data type
d. Viruses
Answer  Explanation  Related Ques

ANSWER: Viruses

Explanation:
No explanation is available for this question!


31)   High current circuits are purposely located or placed near the edge of PCB in accordance to the supply lines for  ________

a. Removal of heat
b. Isolation of stray current
c. Reduction of path length
d. All of the above
Answer  Explanation  Related Ques

ANSWER: Removal of heat

Explanation:
No explanation is available for this question!


32)   Which among the below mentioned approaches belongs to the category of In-circuit Testing?

a. Impedance Testing
b. Component Testing
c. Apply Signal and check output
d. All of the above
Answer  Explanation  Related Ques

ANSWER: All of the above

Explanation:
No explanation is available for this question!


33)   Which among the below stated soldering methods is also renowned as 'High Frequency Resistance Soldering'?

a. Iron Soldering
b. Furnace Soldering
c. Torch Soldering
d. Electrical Soldering
Answer  Explanation  Related Ques

ANSWER: Electrical Soldering

Explanation:
No explanation is available for this question!


34)   Which type of solderability testing is carried out for the generation of solder sample due to immersion of wire or sheet metal specimen in a bath of molten solder?

a. Solder Bath Testing
b. Meniscus Rise Testing
c. Solder Iron Testing
d. None of the above
Answer  Explanation  Related Ques

ANSWER: Meniscus Rise Testing

Explanation:
No explanation is available for this question!


35)   Which among the below mentioned packages does not belong to the category of 'Small Outline Package'?

a. SO
b. SOP
c. SOT
d. SON
Answer  Explanation  Related Ques

ANSWER: SON

Explanation:
No explanation is available for this question!


36)   A Gaussian filter plays an important role in shaping the serial digital bit stream into narrow signal bandwidth ________

a. Before modulation
b. During (at the time of) modulation
c. After modulation
d. None of the above
Answer  Explanation  Related Ques

ANSWER: Before modulation

Explanation:
No explanation is available for this question!


37)   Which among the following can be used to analyze the frequency response of a room?

a. Spectrum Analyzer
b. Pink Noise Generator
c. Both a and b
d. None of the above
Answer  Explanation  Related Ques

ANSWER: Both a and b

Explanation:
No explanation is available for this question!


38)   Which compression coding scheme of vocoder in GSM has a provision of 13 kbps voice bit stream by allowing the transmission of eight telephone calls concurrently in a single 200-ku-wide channel?

a. Regular Pulse Excitation Linear Predictive Coding
b. Residual Excited Linear Predictive Coding
c. Both a and b
d. None of the above
Answer  Explanation  Related Ques

ANSWER: Both a and b

Explanation:
No explanation is available for this question!


39)   Which among the following exhibits a contributory role in an invention of  CDMA system?

a. Unicomm
b. Dualcomm
c. Qualcomm
d. Pentacomm
Answer  Explanation  Related Ques

ANSWER: Qualcomm

Explanation:
No explanation is available for this question!