多家公司相关的笔试题目汇总,标签：驾照笔试题目,腾讯笔试题目,http://www.77xue.com
thickness=0.25 to 0.5mm at hinge)
　　6. Can a bending load makes both compressive and tensile stress in a membe
r?
　　7. What is the design criteria used in plastics catch/snap?
　　8. What is FEA?
　　9. Why is natural frequency important in vibration analysis?
　　10. What is the deflection equation of a cantilever beam fixed at one edge
?
　　EE笔试试题
　　1. Name 3 Vehicle Buses.
　　2. Name 2 possible sources of Electromagnetic interference on Electronics
Circuit ASM.
　　3. Wavelength for 12MHz frequency signal is____
　　4. Name 2 important considerations for car radio performan -ce related to
audio signal processing under multipath condition?
　　5. What is the typical FM receiver RF signal strength to achieve 30dB S/N
for car radio?
　　6. When a radio is tuned to 98.1 MHz & with a LO of 108.8 MHz, what is the
image frequency?
　　7. For a system with a matched impedance, what is the Reflection Coefficie
nt and SWR?
　　8. Which property of the output capacitor is the primary cause of Low Drop
Out(LDO) regulator loop instability?
　　（1）Equivalent series resistance(ESR)
　　（2）Effective series inductance(ESL)
　　（3）Capacitance value
　　（4）Dielectric material
　　9. The switching regulator is capable of:
　　（1）Higher power conversion efficiency
　　（2）Providing an output voltage that is higher than the input
　　（3）Generating an output boltage oppsite in polarity to the input
　　（4）All of the above
　　10. A linear regulator op Vin(max) = 10v, Vout(min) = 4.8v, Iout(max) = 2.
5mA, Iq(max) = 2.5mA, Ta(max) = 8.5摄氏度，The regulator is available in 3 pac
kages.Each package has the following thermal characteristics:
　　Package Rja（摄氏度/W） Rjc（摄氏度/W）
　　SO14 125 30
　　D1P8 100 52
　　Choose the most suitable package to handle the power dissipation requireme
nt without a heat sink and why.
　　软件笔试题
　　1. How do you code an infinite loop in C?
　　2. Volatile:
　　（1）What does the keyword volatile mean? Give an example
　　（2）Can a parameter be both const and volatile? Give an example
　　（3）Can a pointer be volatile? Give an example
　　3. What are the values of a, b, and c after the following instructions:
　　int a=5, b=7, c;
　　c = a+++b;
　　4. What do the following declarations mean?
　　（1）const int a;
　　（2）int const a;
　　（3）const int *a;
　　（4）int * const a;
　　（5）int const * a const;
　　5. Which of the following statements describe the use of the keyword stati
c?
　　（1）Within the body of a function: A static variable maintains its value
between function revocations
　　（2）Within a module: A static variable is accessible by all functions wit
hin that module
　　（3）Within a module: A static function can only be called by other functi
ons within that module
　　6. Embedded systems always require the user to manipulate bits in register

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