ENGINEERING CAREER AND STUDY MATERIALS

Question #1. If the gain of the critical damped system is increased it will behave as (a) oscillatory (b) critically damped (c) overdamped (d) underdamped (e) none of the above Answer: (d) underdamped Question #2. technique gives quick transient and stability response (a) Root locus (b) Bode (c) Nyquist (d) Nichols Answer: (a) Root locus Question #3. On which of the following factors does the sensitivity of a closed loop system to gain changes and load disturbances depend ? (a) Frequency (b) Loop gain (c) Forward gain (d) All of the above Answer: (d) All of the above Question #4. Phase margin of a system is used to specify which of the following ? (a) Relative stability (b) Absolute stability (c) Frequency response

1. The process known as signal compression is used with a(n) ____ amplifier. A) log B ) instrumentation C)  Antilog D) isolation Answer:  B ) instrumentation 2. An automatic toaster is a ______ loop control system. A) open B) closed C) partially closed D) any of the above Answer: A) open 3. Instrumentation amplifiers are normally used to measure A) small differential signal voltages B) signals superimposed on a common-mode voltage often much larger than the signal voltage C) both of the above D) none of the above Answer:  A) small differential signal voltages 4. What is the function of a ladder network? A)Changing a digital signal to an analog B) Changing a linear signal to a digital C)   Changing an analog signal to a digital D) None of the above Answer:  A)Changing a digital signal to an analog 5. Which of the following devices are commonly used as error detectors in instruments ? A) Vernistats B) Microsyns C) Resolvers D) Any of the above Ans

Question #1:-Which among the following substance is most elastic ?  A:-Steel  B:-Rubber  C:-Brass  D:-Aluminium  Correct Answer:- Option-A Question #2. Any externally introduced signal affecting the controlled output is called a (a) feedback (b) stimulus (c) signal (d) gain control  Correct Answer:-: Option B Published @  http://engineering-questions.blogspot.com Question #3:-An increase in load at the free end of a cantilever is likely to cause failure  A:-At fixed support end  B:-Free end  C:-Mid of its length  D:-Any where  Correct Answer:-Answer:- Option-A Question #4. A.C. servomotor resembles (a) two phase induction motor (b) Three phase induction motor (c) direct current series motor (d) universal motor  Correct Answer:- Option-A Question #5:-Electronic components are usually joined by  A:-Brazing  B:-Sintering  C:-Soldering  D:-Welding  Correct Answer:- Option-C Question #6. The band width, in a feedback amplifier. (a) remains unaffected

1. Strain type insulator arc used where the conductors arc (A) dead ended (B) at intermediate anchor towers (C) any of the above (D) none of the above. 2. Conductors for high voltage transmission lines are suspended from towers (A) to reduce clearance from ground (B) to increase clearance from ground (C) to reduce wind and snow loads (D) to take care of extension in length during summer.  3. Boosters are basically (A) inductors (B) capacitors (C) transformers (D) synchronous motors.  4. Which of the following is not the distribution system normally used (A) 3 phase-4 wire (B) 3 phase-3 wire (C) Single phase - 3 wire (D) Single phase -4 wire.  5. Skin effect results in (A) reduced effective resistance but increased effective internal reactance of the conductor (B) increased effective resistance but reduced effective internal reactance of. the conductor (C) reduced effective resistance as well as effective internal reactance (D) increased effective resista

1. The transfer function technique is considered as inadequate under which of the following conditions ? (a) Systems having complexities and non-linearities (b) Systems having stability problems (c) Systems having multiple input dis¬turbances (d) All of the above Answer:(d) All of the above 2. In order to increase the damping of a badly underdamped system which of followincompensators may be used ? (a) Phase-lag (b) Phase-lead (c) Both (a) and (b) (d) Either (a) and (b) Answer: (b) Phase-lead 3. Which of the following is the best method for determining the stability and transient response ? (a) Nyquist plot (b) Bode plot (c) Root locus (d) None of the above Answer: (c) Root locus 4. The type 2 system has at the origin. (a) no net pole (b) net pole (c) simple pole (d) two poles Answer: (d) two poles 5. In a system low friction co-efficient facilitates (a) increased speed of response (b) increased velocity lag error (c) reduced velocity lag error (d) re

1. A car is running at a constant speed of 50 km/h, which of the following is the feedback element for the driver ? (a) Clutch (b) Eyes (c) Needle of the speedometer (d) Steering wheel (e) None of the above Ans: c 2. Which of the following is exhibited by Root locus diagrams ? (a) The poles of the transfer function for a set of parameter values (b) The bandwidth of the system (c) The response of a system to a step input (d) The frequency response of a system (e) None of the above Ans: a 3. With feed back _____ reduces. (a) system stability (6) system gain

1. An antilog amplifier has a ________ in series with the input. A) BJT B) diode C) diode or BJT D) resistor* Answer: D) resistor 2. A basic ________ amplifier is formed by three op-amps and seven resistors A) instrumentation B) isolation C) log * D) Antilog Answer: C) log  3.A 311 IC is an example of an eight-pin DIP that can be made to function as a ________. A) comparator B) 555 timer