# Recent uses of dynamos

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## Related questions

What are the uses of Thermistors ?

A certain appliance uses 350 W. If it is allowed to run continuously for 24 days, how many kilowatt- hours of energy does it consume? A.20.16 kWh B.201.6 kWh C.2.01 kWh D.8.4 kWh

Which stage is of a d.c. power supply uses zener diode  1. Rectifier 2. Voltage divider 3. Filter 4. Regulator

Two light bulbs are connected in series across a 120 V battery. Bulb 1 uses 40 W of power and Bulb 2 uses 20 W of power. If bulb 1 alone is connected to the 120 V source, then it will consume (A) 90 W (B) 80 W (C) 60 W (D) 180 W

The core of a transformer (medium size) uses to provide high flux densities (a) diamagnetic (c) ferromagnetic core (b) paramagnetic (d) none of these

Computation of branch current uses: A. Kirchhoff's voltage and current laws B. Thevenin's theorem and Ohm's law C. Kirchhoff's current law and Ohm's law D. Superposition theorem and Thevenin's theorem

Which of the following architecture uses CSMA/CD access method?  (1) ARCnet (2) Ethernet (3) ATM (4) None of the above

Which of the following uses Divide and Conquer Approach  (1) Selection Sort (2) Bubble sort (3) Linear Search (4) Binary Search

Which of the following is false for switch statement in C++?  (1) It uses labels instead of blocks (2) we need to put break statement at the end of the group of statement of a condition (3) we can put range for case such as case 1..3 (4) None of these

What is the clock cycle time for a system that uses a clock with frequency of 150 kHz?  (A) 55 µ sec (B) 5.5 µ sec (C) 202 sec (D) 6.6 µ sec

MOSFET uses the electric field of?

what are the uses of current transformer ?

what are the uses of MOSFET ?

An oscillator that uses a tapped coil to obtain the feedback is called: a. A Hartley circuit b. A Pierce circuit c. A multivibrator d. A negative feedback circuit

The basic Hartley oscillator uses: (1) One inductor and two capacitors (2) A centre tapped inductor and a capacitor (3) Two capacitors (4) Tickler coil

Linde welding uses 1.Neutral flame and rightward technique 2.Carburizing flame and rightward technique 3.Neutral flame and leftward technique 4.Oxidizing flame and leftward technique

a single phase full wave midpoint thyristor converter uses a 230/200V transformer with centre tap on the secondary side. The P.I.V per thyristor is   (A) 100V (B)141.4V (C)200V (D)282.8V

A 17 inch personal computer uses approximately 150 watts in an hour. If you have same computer on for only 4 minutes (for checking e-mail) what would be the power consumption?  (A) 0.1 kW (B) 0.04 kW (C) 0.01 kW (D) None of the above

A 100-watt light bulb turned on for 8 hours uses :  (A) 800 Wh (B) 0.8 kWh (C) 8 kWh (D) None of the above

The electrode rod used for welding uses a coating on it

Arc welding uses following electric supply (A) ac (B) dc (C) both ac and dc (D) spiral waveform

Blast furnace uses the following as fuel (A) coal (B) coke (C) diesel (D) producer

A modulo -6 ripple counter with J-K flip-flops uses at the clear input, the output from (a) NAND gate with QB,Qc as inputs (b) NAND gate with QA, Q8 as inputs (c) NAND gate with QA, Qc as inputs (d) AND gate with QB, Qc as inputs

An SMPS operating at 20 kHz to 100 kHz range uses as the main switching element : (A) Thyristor (B) MOSFET (C) Triac (D) UJT

Which connector STP uses?  (1) BNC (2) RJ-11 (3) RJ-45 (4) RJ-69

A digital voltmeter uses an A/D converter which needs a start pulse, uses an analog comparator and has a relatively fixed conversion time independent of the applied voltage. The A/D converter is : -  a) Successive Approximation Converter .b) Digital Ramp Converter c) Digital Slope Converter d) All the above

A true rms reading voltmeter uses two thermocouple in order: -  a) to increase sensitivity b) that a second thermocouple cancels out the no linear effect of the first thermocouple c) to prevent drift in the dic. Amplifier d) all of the above

Battery operated scooter for braking uses   (a) plugging (b) mechanical braking (c) regenerative braking (d) rheostatic braking

A flash type ADC uses  A) Counter B) Op—amps C) An integrator D) Flip flop

A system that uses air to power a device/system is called  A) Pneumatic B) Hydraulic C) Automatic D) Super charge