ENGINEERING CAREER AND STUDY MATERIALS

Question No. 1. The power factor of a squirrel cage induction motor is (A) low at light load only. (B) low at heavy load only. (C) low at light and heavy load both. (D) low at rated load only.  Ans: A Question No. 2. Systematic errors are (a) instrumental errors (b) environmental errors (c) observational errors (d) all of the above Ans: d Question No. 3. Which of the following statements is correct for any closed loop system ? (a) All the co-efficients can have zero value (6) All the co-efficients are always non-zero (c) Only one of the static error co-efficients has a finite non-zero value (d) None of the above Ans: c Question No. 4 The temperature of resistance furnaces can be controlled by changing the:  (A) applied voltage (B) number of heating elements  (C) circuit configuration (D) All of the above  Ans: D Question No. 5. A Weston synchronoscope is a (a) moving coil instrument (b) moving iron instrument (c) dynamometer instru...

Civil Engineers Recruitment Questions Question # 1. Euler’s formula holds good only for (1) Short columns (2) Long columns (3) Both short and long columns (4) Intermediate columns Question # 2. The vehicle used in case of enamel paints is usually (1) Linseed oil (2) Water (3) Varnish (4) None of the above Question # 3. Closed contours of decreasing values towards their centre, represent a (1) Hill (2) Depression (3) Saddle (4) River bed Question # 4. Maximum bulking of sand is likely to occur at a moisture content of (1) 5% (2) 8% (3) 11% (4) 14% Question # 5. The operation of revolving a plane table about its vertical axis so that all lines on the sheet become parallel to corresponding lines on the ground is known as (1) Levelling (2) Centering (3) Orientation (4) Setting CIVIL ENGINEERING MULTIPLE CHOICE QUESTION ANSWERS CIVIL ENGINEERING QUESTION ANSWERS Question # 6. Which of the following aggregates gives maximum strength in concrete ? (...

Electrical and Electronics Engineers Recruitment exam question paper is published her by www.questionpapersdownload.com  View/Download the following images/ pdf file of Question paper Electrical and Electronics Engineers Recruitment Exam Question Paper Page 6 Electrical and Electronics Engineers Recruitment Exam Question Paper Page 5 Electrical and Electronics Engineers Recruitment Exam Question Paper Page 4 Electrical and Electronics Engineers Recruitment Exam Question Paper Page 3 Electrical and Electronics Engineers Recruitment Exam Question Paper Page 2 Electrical and Electronics Engineers Recruitment Exam Question Paper Page 1 Click here to download Complete Question Paper in Pdf. format 1. A 311 IC is an example of an eight-pin DIP that can be made to function as a ________. A) comparator B) 555 timer C) D to A converter * D) ladder network 2. A basic ________ amplifier is formed by three op-amps and seven resistors ...

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 (d) Time response Answer: (a) Relative stability Question #5. An increase in gain, in most systems, leads to (a) constant damping ratio (b) larger damping ratio (c) smaller damping ratio (d) none of the abov...

Question No. 1. In a control system integral error compensation _______ steady state error (a) increases (b) minimizes (c) does not have any effect on (d) any of the above Ans: b Question No. 2.  If the field circuits of an unloaded salient pole synchronous motor gets suddenly open circuited, then  (A) The motor stops.  (B) It continues to run at the same speed.  (C) Its runs at the slower speed.  (D) It runs at a very high speed. Ans: B Question No. 3. Two holes in the disc of energymeter are drilled at the opposite sides of the spindle to (a) improve its ventilation (b) eliminate creeping at no load (c) increase its deflecting torque (d) increase its braking tcrque Ans: b Question No. 4. In a stable control system saturation can cause which of the following ? (a) Low-level oscillations (b) High-level oscillations (c) Conditional stability (d) Overdamping Ans: a https://engineering-questions.blogspot.com Question No. 5. Inst...

Question No. 1. In a stepper motor the angular displacement (A) it cannot be used for positioning of work tables and tools in NC machines. (B) it cannot be readily interfaced with micro computer based controller. (C) the angular displacement cannot be precisely controlled. (D) can be precisely controlled. Answer: (D) can be precisely controlled. Question No. 2. A control system working under unknown random actions is called (a) computer control system (b) digital data system (c) stochastic control system (d) adaptive control system Answer: Question No. 3. An ammeter is a (a) recording instrument (b) absolute instrument (c) secondary instrument (d) integrating instrument Answer: (c) secondary instrument Question No. 4 Out of the following methods of heating the one which is independent of supply frequency is (A) electric arc heating (B) induction heating (C) electric resistance heating (D) dielectric heating  Answer: (C...

Basic Electrical Engineering Questions and Answers Multiple Choice Basic Electrical Engineering Question Answers are listed below, these are useful for Electrical Engineering staff Recruitment Exams Question No. 1. A potentiometer may be used for (a) measurement of resistance (b) measurement of current (c) calibration of ammeter (d) calibration of voltmeter (e) all of the above Answer: (e) all of the above Question No. 2. A dc shunt generator has a speed of 800 rpm when delivering 20 A to the load at the terminal voltage of 220V. If the same machine is run as a motor it takes a line current of 20A from 220V supply. The speed of the machine as a motor will be (A) 800 rpm. (B) more than 1000 rpm. (C) less than 800 rpm. (D) both higher or lower than 800 rpm. Answer: (C) less than 800 rpm. Question No. 3. In order to reduce the harmonics in the emf generated in an alternator (A) slots are skewed (B) salient pole tips are chamfered (C) winding is well distributed ...

GATE Electrical Engineering Question & Answer Key The GATE Electrical Engineering Exam Questions with answers published for the use of candidates who are appearing upcoming Examinations   Question No. 1. The d.c. series motor should always be started with load because (A) at no load, it will rotate at dangerously high speed. (B) it will fail to start. (C) it will not develop high starting torque. (D) all are true.  Ans: A Question No. 2. The armature of a dc machine is laminated to reduce: (A) Eddy current loss (B) Hysteresis loss (C) copper losses (D) friction and windage losses  Ans: A Question No. 3. The frequency of the rotor current in a 3 phase 50 Hz, 4 pole induction motor at full load speed is about (A) 50 Hz. (B) 20 Hz. (C) 2 Hz. (D) Zero.  Ans: C Question No. 4. If a single phase alternator has 8 slots per pole uniformly speed, but the winding is arranged with the middle two left empty, the breadth coefficient will be (A) 0.53....

Q.#1. The resistance of armature winding depends on (a) length of conductor (b) cross-sectional area of the conductor (c) number of conductors (d) all of the above Ans: (d) all of the above Q.#2. A commutator in a d.c. machine  (A) Converts the induced a.c armature voltage into direct voltage.  (B) Reduces power loss in field circuit.  (C) Reduces power loss in armature.  (D) Is not necessary. Ans:  (A) Converts the induced a.c armature voltage into direct voltage. Q.#3. In D.C. generators, the cause of rapid brush wear may be (a) severe sparking (b) any of the above (c) imperfect contact (d) rough commutator surface Ans: (b) any of the above Q.#4. The introduction of interpoles in between the main pole improves the performance of d.c. machines, because (A) A counter e.m.f. is induced in the coil undergoing commutation. (B) The flux waveform is improved with reduction in harmonics. (C) The inequality of...

Mechanical Engineering Multiple Choice Questions Q1. The buckling load for a column pinned at both ends is 10 kN. If the ends are fixed, the buckling load changes to (1) 40 kN (2) 2·5 kN (3) 5 kN (4) 20 kN Q2. A 30 mm hole/shaft assembly results in minimum and maximum clearance of 0·03 mm and 0·3 mm respectively. The hole has a unilateral tolerance with zero fundamental deviation. If the tolerance of the shaft is 0·08 mm, the maximum size of the hole is (1) 30·11 mm (2) 30·16 mm (3) 30·19 mm (4) 30·27 mm Q3. Consider the following drives : A. V-belt B. Flat belt C. Toothed belt D. Round belt Which of the above is/are positive drive(s) ? Select the code for the correct answer from the options given below : (1) A and B only (2) B only (3) C only (4) C and D only Mechanical Engineering Solved Question Paper-100 Questions- Click here Q4. Bolts in the flanged end of a pressure vessel are usually pre-tensioned. Indicate which of the following statements is not...

1. D.C. generator generally preferred for charging automobile batteries is (a) series generator (b) shunt generator (c) long shunt compound generator (d) any of'the above Ans: c 2. No-load current in a transformer (a) lags behind the voltage by about 75° (b) leads the voltage by about 75° (c) lags behind the voltage by about 15° (d) leads the voltage by about 15° Ans: a 3. Primary winding of a transformer (a) is always a low voltage winding (b) is always a high voltage winding (c) could either be a low voltage or high voltage winding (d) none of the above Ans: c 4. Power transformers are designed to have maximum efficiency at (a) nearly full load (b) 70% full load (c) 50% full load (d) no load Ans: a 5. In a transformer the tappings are generally provided on (a) primary side (b) secondary side (c) low voltage side (d) high voltage side Ans: c 6. Transmission voltage of llkV is normally used for distances upto (a) 20—25 km (b) 40—50 km (c)...

Question No. 1. Electric resistance seam welding uses __________ electrodes.  (A) Pointed (B) Disc.  (C) Flat (D) Domed Ans: B Question No. 2. Spring constant in force-voltage analogy is analogous to (a) capacitance (b) reciprocal of capacitance (c) current (d) resistance Ans: b Question No. 3. The frequency and time domain are related through which of the following? (a) Laplace Transform and Fourier Integral (b) Laplace Transform (c) Fourier Integral (d) Either (b) or (c) Ans: a Question No. 4. When the initial conditions of a system are specified to be zero it implies that the system is (a) at rest without any energy stored in it (b) working normally with reference input (c) working normally with zero reference input (d) at rest but stores energy Ans: d Question No. 5. The power of a n-phase circuit can be measured by using a minimum of (a) (n - 1) wattmeter elements (b) n wattmeter elements (c) (n + 1) wattmeter elements (d) 2n wattme...

MECHANICAL ENGINEERING EXAM QUESTIONS Question # 1. If the mechanical properties of a composite improves as a result of increasing the average fibre length, then it is called (1) Long fibre (2) Short fibre (3) Medium length fibre (4) Elastic fibre Question # 2. A refrigerator working on a reversed Carnot cycle removes 2 kW per minute of heat from a system working between the temperatures of 300 K and 200 K. The COP and power consumed by the cycle will be (1) 1, 1 kW (2) 1, 2 kW (3) 2, 1 kW (4) 2, 2 kW Question # 3. 18-4-1 HSS steel contains (1) 18% tin, 4% nickel, 1% chromium (2) 18% tungsten, 4% nickel, 2% chromium (3) 18% tungsten, 4% chromium, 1% vanadium (4) 18% nickel, 4% chromium, 1% manganese Question # 4. The dryness fraction of sample steam in separating calorimeter is 0·9 and in throttling calorimeter is 0·8. The dryness fraction of the sample is (1) 0·9 (2) 0·8 (3) 0·66 (4) 0·72 Mechanical Engineering Solved Question Paper-100 Questions- Clic...

Question No. 1:-The 8-bit encoding format used to store data in a computer is  A:-ASCII  B:-EBCDIC  C:-ANCI  D:-USCII  Correct Answer:- Option-B Question No. 2:-The resistance of an ideal voltmeter is _________  A:-Zero  B:-Low  C:-High  D:-Infinite  Correct Answer:- Option-D Question No. 3:-The tenacity or hardness with which the bond holds the cutting point or abrasives in place of a grinding wheel is defined by the term ?  A:-Structure  B:-Grit size  C:-Grain size  D:-Grade  Correct Answer:- Option-D Question No. 4:-Generally, no corrosion allowance in wall thickness of a part is required, if the thickness is more than  A:-5 mm  B:-10 mm  C:-20 mm  D:-30 mm  Correct Answer:- Option-D Question No. 5:-Which of the following fine dust removal equipment is the most efficient ?  A:-bag filter  B:-scrubber  C:-electrostatic precipitator ...

Junior Engineer (Electrical) - AIIMS Jodhpur Model Question Answer Electrical Engineers Recruitment Examination conducted by AIIMS Jodhppur, the previous question papers published in our websites and the model questions answers are listed below Q. No. 1. Various adjustments in an energy meter include (a) light load or friction (b) lag and creep (c) overload and voltage compensation (d) temperature compensation (e) all of the above Answer: (e) all of the above Q. No. 2. The line trap unit employed in carrier current relaying: (A) offers high impedance to 50 Hz power frequency signal (B) offers high impedance to carrier frequency signal (C) offers low impedance to carrier frequency signal (D) Both (A) & (C) Answer: (B) offers high impedance to carrier frequency signal Junior Engineer (Electrical) - AIIMS Jodhpur Model Question Answer   Q. No. 3.Most sensitive galvanometer is (a) elastic galvanometer (b) spot ballistic galvanometer (c) Duddlb galvanometer...