Description : Generators convert mechanical motion to electrical energy using what principle?
Last Answer : Magnetic induction
Description : When brakes are applied on a moving vehicle the kinetic energy is converted to A. Mechanical energy B. Heat energy C. Electrical energy D. Potential energy
Last Answer : B. Heat energy
Description : What is the machine that converts mechanical energy or motion into electrical energy?
Last Answer : generator
Description : Without electrical, mechanical, gravitational, surface tension and motion effects, a system is called _____ system. A. Simple B. Simple compressible C. Compressible D. Independent
Last Answer : Simple compressible
Description : A single fixed pulley is used to draw water from a well because – (1) efficiency is 100% (2) velocity ratio is low (3) mechanical advantage is high (4) force is applied in a convenient direction
Last Answer : (4) force is applied in a convenient direction Explanation: A single fixed pulley is used to lift a load upwards by applying efforts downward's. The load and effort move equal distance but in opposite ... apply effort in downward direction. They are used on flag-poles and to draw water from a well.
Description : A single fixed pulley is used to draw water from a well because (1) efficiency is 100% (2) velocity ratio is low (3) mechanical advantage is high (4) force is applied in a convenient direction
Last Answer : force is applied in a convenient direction
Description : What are the three causes of mechanical drift in a gyro?
Last Answer : Unbalanced gyro, inertia of gimbals, bearing friction
Description : When using the tight-hand rule to determine precession, which finger indicates the direction of the applied force?
Last Answer : Middle finger.
Description : Write the analogous electrical elements in force current analogy for the elements of mechanical translational system.
Last Answer : Force-current I Velocity v-voltage v Displacement x-flux_ Frictional coeff B-conductance 1/R Mass M- capacitance C Stiffness K-Inverse of inductance 1/L
Description : Write the analogous electrical elements in force voltage analogy for the elements of mechanical translational system.
Last Answer : Force-voltage e Velocity v-current i Displacement x-charge q Frictional coeff B-Resistance R Mass M- Inductance L Stiffness K-Inverse of capacitance 1/C
Description : A body of weight 100 kg is placed on a horizontal plane. A horizontal force of 30 kg is applied and the block is just on the point of motion. The angle of friction is a.About 16? b.30? c.45? d.60? e.None of the above
Last Answer : a. About 16?
Description : What causes dc bias energy to be absorbed by avalanche electrons and given up to the microwave field applied to an avalanche transit-time diode?
Last Answer : The negative-resistance property.
Description : The electron beam in a CRT is made to sweep from left to right across the screen. What tube element causes this sweeping motion?
Last Answer : The horizontal-deflection plate.
Description : Hybrid vehicles convert energy that is normally lost through braking into electrical energy. What is the term that is used for this recycling of energy? APerpetual motion BRegenerative breaking C. Kinetic conversation D. Hybrid archamy
Last Answer : BRegenerative breaking
Description : Which of the following statements about continuous cardiac output monitoring are true? A. Continuous cardiac output monitoring may unmask events not detected by intermittent cardiac output measurements. ... stroke volume by detecting changes in resistance to a small, applied alternating current.
Last Answer : Answer: AD DISCUSSION: Various techniques are available to measure cardiac output continuously. The advantages of continuous cardiac output monitoring, as compared with intermittent methods, are (1) ... function of the stroke volume, which then can be used to calculate the cardiac output
Description : The interaction between an external field and the binding force of an atom causes electrons to do what?
Last Answer : Wobble at a natural resonant frequency.
Description : Using table 1-1, name two synchros that provide a mechanical output.
Last Answer : The torque receiver (TR) and the torque differential receiver (TDR).
Description : How do electromechanical computers differ from the mechanical computers?
Last Answer : Electromechanical computers use electrical components to perform some of the calculations.
Description : Mechanical computers are considered to be of what type?
Last Answer : Analog.
Description : __________ is one where mechanical forces or restricting forms are applied on a material so asto form it into the desired shape a.Subtractive process b.Additive process c.Formative process d.All of above
Last Answer : c.Formative process
Description : Which of the following factors affect the mechanical properties of a material under applied loads? a) Content of alloys b) Grain size c) Imperfection and defects d) Shape of material
Last Answer : d) Shape of material
Last Answer : The mechanical power developed by a shunt motor will be maximum when the ratio of back e.m.f. to applied voltage is 0.5.
Description : Power is rate of doing work or the rate at which energy is supplied to the system. A constant force F is applied to a body of mass m.
Last Answer : Power is rate of doing work or the rate at which energy is supplied to the system. A constant force F ... expression for power in terms of F, m and t.
Description : The rate of change of moment of momentum represents the __________ by the fluid. (A) Torque applied (B) Force exerted (C) Work done (D) Power developed
Last Answer : (A) Torque applied
Description : Euler's equation of motion states, that at every point, the (A) Fluid momentum is constant (B) Force per unit mass equals acceleration (C) Rate of mass outflow is equal to the rate of mass inflow (D) None of these
Last Answer : (B) Force per unit mass equals acceleration
Description : The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called (A) Newton's law of motion (B) Newton's law of cooling (C) Newton's law of viscosity (D) Newton's law of resistance
Last Answer : Answer: Option D
Description : What is the relationship between the polarity of the voltage applied to the PNP transistor and that applied to the NPN transistor?
Last Answer : The polarity of voltage applied to the PNP transistor is opposite of that applied to the NPN
Description : To properly bias an NPN transistor, what polarity voltage is applied to the collector, and what is its relationship to the base voltage?
Last Answer : Positive, more positive.
Description : What three things prevent a CT rotor from turning when voltages are applied to its stator windings?
Last Answer : The rotor is specially wound, it is never connected to an ac supply, and its output is always applied to a high-impedance load.
Description : In applications where electronic waveforms are displayed on a CRT screen, the input signal is normally applied to what CRT element?
Last Answer : The vertical-deflection plate.
Description : . What type of counter has clock pulses applied to all FFs?
Last Answer : Synchronous.
Description : . In a common anode, seven-segment LED display, an individual LED will light if a negative voltage is applied to what element?
Last Answer : The cathode.
Description : In the inverting configuration, the input signal is applied to the (a) (inverting, noninverting) input and the feedback signal is applied to the (b) (inverting, noninverting) input.
Last Answer : a. Inverting. b. Inverting.
Description : How is emergency power applied when normal power is lost?
Last Answer : Automatically.
Description : When a large signal and a small signal are applied to a lin log amplifier at the same time, what is the effect on the small signal?
Last Answer : Amplification is reduced.
Description : What material is applied to electronic assemblies to prevent damage from corrosion, moisture, and stress?
Last Answer : Conformal coating
Description : The electrons in the beam of a klystron are speeded up by a high dc potential applied to what elements?
Last Answer : The accelerator grid and the buncher grids.
Description : A large negative voltage is applied to the plate of a diode, and a largewhat tube parameter has been exceeded?
Last Answer : Peak Inverse Voltage (PIV).
Description : The plate voltage of a tube will vary 126 volts when a 3-volt ac signal is applied to the control grid. What is the gain of this tube?
Last Answer : 42.
Description : An ac voltage is applied across a diode. The tube will conduct when
Last Answer : Positive.
Description : According to Ohm’s law, what happens to circuit current if the applied voltage (a) increases, (b) decreases?
Last Answer : (a) Current increases (b) Current decreases
Description : When aligning the trace with a short applied to channel A, which control should be adjusted to bring the trace parallel to the vertical axis?
Last Answer : TRACE ROTATE control.
Description : If a switch must be checked with power applied, what type of meter is used?
Last Answer : A voltmeter.
Description : Which of the two types of electron motion (orbital movement and electron spin) is more important in the explanation of magnetism?
Last Answer : Electron spin.
Description : The apparent change in frequency or pitch because of motion is explained by what effect?
Last Answer : The Doppler effect.
Description : What type of wave motion is represented by the motion of water?
Last Answer : Transverse waves.
Description : What are some examples of wave motion?
Last Answer : Sound waves, light waves, radio waves, heat waves, water waves.
Description : What is wave motion?
Last Answer : A means of transferring energy from one place to another.
Description : What transmission method does NOT depend on relative frequency or target motion?
Last Answer : Pulse modulation.