Technical

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Q. In a series RLC circuit, what happens when the damping ratio is less than 1?
  • A. The circuit is overdamped
  • B. The circuit is critically damped
  • C. The circuit is underdamped
  • D. The circuit is unstable
Q. In a series-parallel circuit, how does a BJT operate when used as a switch?
  • A. In cutoff mode, it conducts current
  • B. In saturation mode, it blocks current
  • C. In saturation mode, it conducts current
  • D. In active mode, it blocks current
Q. In a series-parallel circuit, what is the effect of connecting multiple diodes in parallel?
  • A. Increases total voltage
  • B. Increases total current capacity
  • C. Decreases total current capacity
  • D. Has no effect on current
Q. In a shift register, what does the term 'clock pulse' refer to?
  • A. The speed of data transfer
  • B. The timing signal that controls shifting
  • C. The amount of data stored
  • D. The type of shift register
Q. In a small-signal model of a parallel circuit, how are the components represented?
  • A. As linear elements only
  • B. As nonlinear elements only
  • C. As a combination of linear and nonlinear elements
  • D. As ideal voltage sources
Q. In a small-signal model of a parallel circuit, the output voltage is:
  • A. The same as the input voltage
  • B. Dependent on the load
  • C. Always zero
  • D. Equal to the sum of the input voltages
Q. In a small-signal model, how is a capacitor typically represented?
  • A. As an open circuit
  • B. As a short circuit
  • C. As a resistor
  • D. As a dependent source
Q. In a small-signal model, how is the output voltage related to the input voltage in an RL circuit?
  • A. Output voltage is always greater than input voltage
  • B. Output voltage is always less than input voltage
  • C. Output voltage can be greater or less depending on the circuit configuration
  • D. Output voltage is independent of input voltage
Q. In a small-signal model, what does the output voltage of an op-amp depend on?
  • A. Input voltage and feedback
  • B. Only input voltage
  • C. Only feedback
  • D. Power supply voltage
Q. In a small-signal model, what does the transconductance (gm) of a BJT represent?
  • A. The input resistance
  • B. The output resistance
  • C. The change in output current per change in input voltage
  • D. The change in input current per change in output voltage
Q. In a small-signal model, what does the transconductance (gm) represent?
  • A. The change in output voltage per change in input current
  • B. The change in output current per change in input voltage
  • C. The change in input voltage per change in output current
  • D. The change in input current per change in output voltage
Q. In a star schema, what do the fact tables contain?
  • A. Dimension attributes
  • B. Aggregated data
  • C. Transactional data
  • D. Metadata
Q. In a star schema, what do the fact tables represent?
  • A. Dimensions of the data
  • B. Aggregated data
  • C. Transactional data
  • D. Metadata
Q. In a star schema, what type of table is the central fact table surrounded by?
  • A. Dimension tables
  • B. Normalization tables
  • C. Transaction tables
  • D. Index tables
Q. In a star schema, what type of table is the central fact table?
  • A. Dimension table
  • B. Lookup table
  • C. Aggregate table
  • D. Fact table
Q. In a step-up transformer, the number of turns in the primary coil is:
  • A. Greater than the secondary coil
  • B. Less than the secondary coil
  • C. Equal to the secondary coil
  • D. None of the above
Q. In a summing amplifier configuration, what is the role of the feedback resistor?
  • A. To set the gain of the amplifier
  • B. To provide stability
  • C. To determine the input impedance
  • D. To filter noise
Q. In a summing amplifier using an op-amp, what is the output voltage if the inputs are 2V and 3V with equal resistors?
  • A. 5V
  • B. 2.5V
  • C. 1V
  • D. 0V
Q. In a T Flip-Flop, what does the T input control?
  • A. The output state
  • B. The clock frequency
  • C. The reset condition
  • D. The data input
Q. In a thyristor, what is the role of the gate terminal?
  • A. To provide a path for current
  • B. To control the turn-on of the device
  • C. To dissipate heat
  • D. To connect to the load
Q. In a transformer, the turns ratio determines what?
  • A. The efficiency of the transformer
  • B. The frequency of the output signal
  • C. The voltage transformation ratio
  • D. The power rating of the transformer
Q. In a transformer, what role does the inductor play?
  • A. It converts AC to DC
  • B. It stores energy
  • C. It transfers energy between circuits
  • D. It filters signals
Q. In a truth table, how many rows are there for a circuit with 3 inputs?
  • A. 4
  • B. 6
  • C. 8
  • D. 16
Q. In a truth table, how many rows does a 3-input logic gate have?
  • A. 4
  • B. 6
  • C. 8
  • D. 16
Q. In ADO.NET, which class is used to represent a connection to a database?
  • A. SqlConnection
  • B. SqlCommand
  • C. SqlDataAdapter
  • D. SqlDataReader
Q. In an astable multivibrator, what determines the frequency of oscillation?
  • A. The resistor values only
  • B. The capacitor value only
  • C. Both resistor and capacitor values
  • D. The power supply voltage
Q. In an Entity-Relationship (ER) model, what does a diamond shape represent?
  • A. Entity
  • B. Attribute
  • C. Relationship
  • D. Weak entity
Q. In an Entity-Relationship (ER) model, what does an entity represent?
  • A. A relationship between two tables
  • B. A single piece of data
  • C. A real-world object or concept
  • D. A database transaction
Q. In an ER diagram, how is a multi-valued attribute represented?
  • A. As a rectangle
  • B. As an oval
  • C. As a double oval
  • D. As a diamond
Q. In an ER diagram, how is a primary key typically represented?
  • A. Underlined text
  • B. Bold text
  • C. Italicized text
  • D. In a different color
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