Solved

Specific Fuel Consumption
Brake-specific fuel consumption (BSFC) measures how efficiently an engine converts fuel mass into useful work. Modern petrol e...

11 days ago

Solved

Piston Mean Speed
Mean piston speed is a critical mechanical stress indicator. It sets limits on valve timing, bearing loads and material fatigue...

11 days ago

Solved

Engine Displacement
Engine displacement is the total swept volume of all cylinders. It is determined by bore (cylinder diameter), stroke (piston t...

11 days ago

Solved

Fuel-Air Equivalence Ratio (Lambda)
Lambda (λ) is the ratio of actual air-fuel ratio to the stoichiometric air-fuel ratio. λ = 1 is perfect stoichiometry, λ < 1...

11 days ago

Solved

Combined Ages 1 - Symmetric, n = 3
You have probably seen the common riddle wherein combined ages are provided and you must determine the individual ages. For exam...

11 days ago

Solved

Compute Radar Wavelength from Frequency
Radar systems operate at electromagnetic frequencies. The wavelength of the transmitted signal is related to the operating frequ...

11 days ago

Solved

Radar Target Distance Calculation
A radar system sends a short electromagnetic pulse toward a target and measures the elapsed time between transmission and recept...

11 days ago

Solved

Calculate Target Doppler Frequency Shift for a Pulse-Doppler Radar
Calculate the target Doppler frequency shift measured by a pulse-Doppler radar. A radar system operates at a carrier frequency ...

11 days ago

Solved

Almost done with the "tutorial"(Perimeter of a circle)
Find the perimeter of a circle(P) if radius r is given.

12 days ago

Solved

Not yet geometry(Circles)
Type the formula of the area(Ac) of a circle with radius r and a sector of a circle(As) with radius r and angle theta in rads. ...

12 days ago

Solved

Check Bidirectional Requirement Traceability
Bidirectional traceability ensures that a relationship recorded from a requirement to an architecture element is also reflected ...

12 days ago

Solved

Calculate Architecture Option Score
System architects often compare multiple architecture candidates against several evaluation criteria. Given a matrix containing...

12 days ago

Solved

Evaluate Requirement Test Results
During system verification, measured values are compared against requirement limits. Given a set of measured results and corres...

12 days ago

Solved

Calculate Verification Coverage
Before a system can be verified, each applicable requirement should have an associated verification activity. Given the total n...

12 days ago

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Calculate Availability of a Redundant Pair
Redundancy can improve system availability by allowing the system to continue operating when one of two independent components f...

12 days ago

Solved

Calculate Series System Availability
Consider a system in which every component must operate successfully for the complete system to function. Given the individual ...

12 days ago

Solved

Count System Architecture Interfaces
An architecture can be represented using a connectivity matrix. Each row and column represents a system element, while a value o...

12 days ago

Solved

Count Active Architecture Elements
A system architecture may contain several elements, but not all elements are active in a particular configuration. Given a logi...

12 days ago

Solved

Calculate Requirement Traceability Coverage
Traceability helps ensure that system requirements are connected to downstream engineering artifacts such as architecture elemen...

12 days ago

Solved

Find Unallocated Requirements
During system development, requirements are allocated to system elements such as sensors, controllers, actuators, or software co...

12 days ago

Solved

Calculate Requirement Margin
Engineering requirements often specify a limit, while the actual system performance may be better or worse than that limit. Giv...

12 days ago

Solved

Check Requirement Compliance
A system requirement specifies a maximum allowable value for a system parameter.Given a set of measured values and the correspon...

12 days ago

Solved

Not yet geometry(equilateral triangle)
Type the formula of the area(A) of an equilateral triangle with a side of a. Tip: As a string.

14 days ago

Solved

Not yet geometry(triangles)
Write the formula of the area of a triangle(A) that has a height of h and a base of b. Tip: Write the formula as a string.

14 days ago

Solved

Generalizing square area to triangle area
Cody Problem 61070 asked for the height, h, of a right triangle that had the same area, A, of a square with side length, c, and ...

27 days ago

Solved

Square area to triangle area
Given the area, A, of a square with side length, c, if a right angle triangle has the same area A and the hypothenuse length 2c ...

27 days ago

Solved

Range Resolution of a Pulsed Radar
A pulsed radar transmits a rectangular pulse with duration tau seconds. Given the pulse duration, compute the radar range resolu...

27 days ago

Solved

Draw 'F'
Draw a x-by-x matrix 'F' using 1 and 0. (x is odd and bigger than 4) Example: x=5 ans= [1 1 1 1 1 1 0 0 0 0 ...

2 months ago

Solved

Create a block diagonal matrix
A block diagonal matrix is a square matrix that can be written as A = [a 0 0 0 0 b 0 0 0 0 c 0 ...

2 months ago

Solved

Volumetric efficiency
Volumetric efficiency measures how well an engine breathes. The ratio of the actual air mass drawn in per cycle to the theoreti...

2 months ago