Description : Generally, oscilloscope uses what type of deflection?
Last Answer : electrostatic deflection
Description : What kind of voltage is applied to the horizontal deflection plates of the oscilloscope?
Last Answer : sweep voltage
Description : An oscilloscope provides easy measurement of __ values.
Last Answer : peak to peak
Description : In an oscilloscope, ___ adjusts the brightness of the spot by chaning the current on the control grid.
Last Answer : intensity control
Description : What is being controlled at the potentials between anode of an oscilloscope?
Last Answer : Focus
Description : The ___ provides the visual display showing the form of the signal applied as a waveform on the front screen of a cathode ray oscilloscope
Last Answer : CRT
Description : Considered as the "heart" of the cathode ray oscilloscope.
Last Answer : cathode ray tube (CRT)
Description : Bridge used to measure both inductive and capacitive impedances at higher frequencies
Last Answer : radio-frequency bridge
Description : A device or instrument, which delivers signals of precise frequency and amplitude, usually over a wide range
Last Answer : signal generators
Description : In RF and microwave system, what instrument is used to measure the incidental and reflected signals?
Last Answer : reflectometer
Description : It consists of a diode and an opamp and has the ability to clip low level signals
Last Answer : precision diode
Description : A meter when __ will become insensitive to small signals
Last Answer : overdamped
Description : What is a thyristor ? What are its uses ?
Last Answer : A thyristor is a special kind of semi conductor device that uses internal feedback to produce latching action. Use : Used for controlling large amounts of load power in motors, heaters, lighting systems etc ... the latches like a open switch. This latch will always stay in open or close position.
Description : What are the different types of orifice plates and state their uses ?
Last Answer : The different types of orifice plates are : • Concentric. • Segmental. • Eccentric. • Quadrant Edge.
Description : A Kelvin electrostatic voltmeter uses what method of damping?
Last Answer : fluid friction
Description : What do you call of an instrument that depends for its operation on the reaction between magnetic flux set up by currents in fixed windings and other currents set up by electromagnet induction in movable conducting parts?
Last Answer : induction instrument
Description : What do you call of the frequency-sensitive bridge in which two adjacent arms are resistances and other are RC combinations?
Last Answer : Wein Bridge
Description : What is the normal indication on a megger when checking insulation?
Last Answer : infinity
Description : An instrument of device having recognized permanent of stable value that is used as a reference.
Last Answer : standard instrument/device
Description : What should be the resolution of a digital voltmeter having three digit 0-3V?
Last Answer : 3mV
Description : Two sinusoidal signals of the same frequency are displayed on a dual-trace oscilloscope. One complete cycle of each signal covers 6 cm of the horizontal scale and the starting point of the horizontal scale and the starting ... between the two signals in degrees is (a) 30 (b) 45 (c) 60 (d) 90
Last Answer : Two sinusoidal signals of the same frequency are displayed on a dual-trace oscilloscope. One complete cycle of each signal covers 6 cm of the horizontal scale and the starting point of the horizontal ... signals are separated by 0.5 cm. The phase difference between the two signals in degrees is 30
Description : Is there any concept that is absolutely beyond the capabilities of the human imagination?
Last Answer : How would we know?
Description : _with which computers perform is way beyond human capabilities: a. Speed b. Accuracy c. Storage d. ‘Versatility
Last Answer : a. Speed
Description : What term is used for corporate development beyond current products and markets, but within the capabilities or the value network of the organisation? A. Backward integration B. Related diversification C. Vertical integration D. Divergent diversification
Last Answer : Related diversification
Description : Which of the following techniques would be most useful in the differential diagnosis between ectopic Cushing's syndrome and pituitary dependent Cushing's disease. 1) Urine free cortisol 2) ... Dexamethasone suppression test 3) ACTH concentrations 4) Inferior petrosal sinus sampling 5) CRF test
Last Answer : Answers-4 Inferior petrosal sinus sampling with an elevated central ACTH concentration compared with the peripheral value is the most valuable test in the differential diagnosis of either Cushing's disease or ectopic Cushing's syndrome. The other tests are far less useful in comparison.
Description : In connection with the examination of financial statements, an independent auditor could be responsible for failure to detect a material fraud if a. Accountants performing important parts of the ... . The fraud was perpetrated by one client employee, who circumvented the existing internal control
Last Answer : The auditor planned the work in a hasty and inefficient manner.
Description : In connection with the examination of financial statements, an independent auditor could be responsible for failure to detect a material fraud if a. Statistical sampling techniques were not used on ... partsof the work failed to discover a close relationship between the treasurer and the cashie
Description : In which of the following nonrandom sampling techniques does the researcher ask the research participants to identify other potential research participants? a. Snowball b. Convenience c. Purposive d. Quota
Last Answer : a. Snowball
Description : Which of the following techniques yields a simple random sample? a. Choosing volunteers from an introductory psychology class to participate b. Listing the individuals by ethnic group and choosing a ... from the table. d. Randomly selecting schools, and then sampling everyone within the school.
Last Answer : c. Numbering all the elements of a sampling frame and then using a random number table to pick cases from the table
Description : Research ethics has a direct connection more often with which stages of research ? (A) Defining and delimiting the scope of research. (B) Problem formulation and reporting of research ... deciding the sampling technique for research. (D) Deciding about statistical techniques and data analysis.
Last Answer : (B) Problem formulation and reporting of research findings.
Description : In qualitative research paradigm, which of the following features may be considered critical? (A) Data collection with standardised research tools. (B) Sampling design with probability sample techniques ... evidences. (D) Data gathering to take with top-down systematic evidences.
Last Answer : (C) Data collection with bottom-up empirical evidences.
Description : Software in computer A) Enhances the capabilities of the hardware machine B) Increase the speed of central processing unit C) Both of above D) None of above
Last Answer : Answer : A
Description : Software in computer a. Enhances the capabilities of the hardware machine b. Increase the speed of central processing unit c. Both of above d. None of above
Last Answer : Enhances the capabilities of the hardware machine
Last Answer : a. Enhances the capabilities of the hardware machine
Description : What is feed back control ? What is feed forward control ? Discuss its application ?
Last Answer : Feed back control: Feed back control involves the detection of the controlled variable and counteracting of charges its it's value relative to set point, by adjustment of a manipulated ... controller for a particular process application, two factors time and gain must be considered.
Description : Draw a potentiometer temp. Measuring circuits and explain its?
Last Answer : OPERATION : The input to the instrument is a measurement of some in the processes using a sensing element ( such as thermocouple ) or a device to produce direct voltage, which is the voltage (signal) ... to zero results ( null point ) the balancing ( servo motor is be longer driven )
Description : A meter has a full-scale current of 50uA, what is its sensitivity?
Last Answer : Is=1/50uA=20kohm/V
Description : What is that meter that depends for its operation on the forces attraction and repulsion
Last Answer : electrostatic instrument
Description : A moving system force in an analog instruments which causes the moving system to deflect from its zero position.
Last Answer : deflecting force
Description : A force in analog instrument which quickly brings the moving system to rest in its final position.
Last Answer : damping force
Description : A galvanometer with 20 ohms coil resistence has a full-scale deflection of 10 mA. A 0.02 ohm is placed across the meter to increase its rating capacity. What is the new full scale current for the meter?
Last Answer : False.
Description : The most common method used for sampling voice signals in PCM systems.
Last Answer : flat top sampling
Description : The signals which are obtained by encoding each quantized signal into a digital word is called as a) PAM signal b) PCM signal c) FM signal d) Sampling and quantization
Last Answer : b) PCM signal
Description : Sampling of Analogue Signals
Last Answer : Sampling of Analogue Signals Sampling means splitting in regular interval to convert it in digital form. Sampling converts continuous signal to discrete signal. Actually the accuracy ... use. Using sampling we can store the analogue data in digital form.
Description : What is a filter used for ?
Last Answer : The half wave and full wave signals are pulsating D . C . voltages. The use of such voltages is limited to charging batteries, running D. C. motors, and a few other applications. What we really ... voltage from a battery. To get a constant voltage from this, we can use a capacitor input filter.
Description : What is Zener Diode ? What is a voltage Regulator ?
Last Answer : The breakdown region of a p n diode can be made very sharp and almost vertical Diodes with almost vertical breakdown region are known as Zever Diodes. A Zener diodes operating in the breakdown ... VOLTAGE REGULATOR : The output remains constant despite changes in input voltage due to Zever effect.
Description : What is transistor ? What are the different types ?
Last Answer : A transistor is a three lagged semi conductor device. Basically a transistor means (transfer - resister). Whether the transistor is pnp or npn it resembles two diodes (back to back). The one of the left ... transistor : Emitter - Base - Forward Bias. Collector - Base - Reverse Bias.
Description : What is CB, CE and CC configuration ?
Last Answer : Buffer : A device or a circuit used to isolate two pt'ne circuits or stages. The emitter follows is a example of buffer. Alpha = IC / IE Beta = IC / IB