List of practice Questions

An electric fan and a heater are marked 100W, 220V and 1000W, 220V respectively. The resistance of the heater is ____ .
Two bulbs of 100W, 200V and 150W, 200V are connected in series across a supply of 200V. The power consumed by the circuit is ____ .
If 125V is applied across a 250V, 100W incandescent bulb, the power consumed will be _____ .
The power consumed by a coil is 300 watts when connected to a 30V DC source and 108 watts when connected to a 30V AC source. The reactance of the coil is ____ .

The supply voltage magnitude \( |V| \) of the circuit shown below is ____ .
The supply voltage magnitude

The resistance of a copper motor winding at room temperature (20° C) is 3.42 \(\Omega\). After extended operation at full load, the motor winding measures 4.22 \(\Omega\). Determine the rise in temperature. The temperature coefficient $\alpha$ is 0.00426/°C.
A single-phase AC voltage source has 200V (RMS) and a system connected consumes an active power of 300 Watts. What is the reactive power consumed by the system if 2.5A (RMS) current is drawn?
A ray of light passing through the point (2, 3) reflects on the Y-axis at a point P. If the reflected ray passes through the point (3, 2) and P = (a, b), then 5b = ?

Let P be any point on the circle x2 + y2 = 25. Let L be the chord of contact of P with respect to the circle x^2 + y^2 = 9. The locus of the poles of the lines L with respect to the circle x2 + y2 = 36 is:

Given below are two statements :
Statement I : In the nephron, the descending limb of loop of Henle is impermeable to water and permeable to electrolytes.
Statement II : The proximal convoluted tubule is lined by simple columnar brush border epithelium and increases the surface area for reabsorption.
In the light of the above statements, choose the correct answer from the option given below :
Which one of the following is commonly used for server side scripting in web development?
Which of the following is not a web component element?
Ar\(^ {18}_{40}\) and Ca\(^ {40}_{20}\) are considered as:
What does stand for, in web programming development?
Which font format is used in web pages?
Telnet is
A computer has 24-bit address bus and an instruction format providing 12 bits in the address part. What is the maximum addressable range?
In a page segmented system, a virtual address consists of 32 bits of which 12 bits are a displacement, 11 bits are segment number, and 9 bits are page number. What is the page size?
Which of the following is essential for converting an infix expression to the postfix form efficiently?
What do semaphores do?
Statement 1: When dynamic programming is applied to a problem, it takes far less time as compared to other methods that don't take advantage of overlapping subproblems.
Statement 2: A greedy algorithm can be used to solve all the dynamic programming problems.
When all other processes are waiting for one process to get off the CPU, the phenomenon is called
Garbage collection deals with
The term cyclomatic complexity is related to
Assume transaction A holds a shared lock R. If transaction B also requests for a shared lock on R, it will