What is the stochiometric ratio?

The ratio of air to fuel intake to burn all fuel cleanly

Why piston aircraft engines have to be turbocharged?

Because decrease in air pressure due to altitude

Turbo chargers are more efficient than superchargers for high RPM engines because...

Turbo chargers make use of the exhaust gas's energy

Which concept states that in any fluid system, the mass flow in has to equal the mass flow out?

The Steady Flow Continuity Equation

Which of these mathematical operations is not possible?

Addition of a vector to a scalar

Which of the following methods are used to analyse the forces in a truss structure ?

Methods of Sections, Methods of Joints

What is a line integral?

An integral evaluated over a curve

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First Year Mech Fundumentals

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a quiz that brings most of the fundamental information needed for first year mech students!

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Questions 11

Answers

1
What is the stochiometric ratio?
None of the above
The ratio of engine power to fuel consumption
The ratio of air to fuel intake to burn all fuel cleanly
The ratio of fuel consumption to produced exhaust
2
Only one of these choices is allowed to be assigned as a variable in MATLAB.. Which is it?
3Square
Square*3
Three Square
Threesquare
3
Why piston aircraft engines have to be turbocharged?
All of the above
Aircraft fuel must be cold to combust
Because decrease in air pressure due to altitude
To allow the aircraft to fly for longer
4
Turbo chargers are more efficient than superchargers for high RPM engines because...
Turbo chargers have less mechanical parts
Turbo chargers make use of the exhaust gas's energy
Turbo chargers experience lagging
Turbo chargers weigh less
5
Which concept states that in any fluid system, the mass flow in has to equal the mass flow out?
The Bernoulli Equation
The change in pressure is = - ρgz
The Steady Flow Continuity Equation
None of the above
6
Which of these mathematical operations is not possible?
Multiplying a vector by a vector
Subtraction of two vectors
Multiplying a scalar by a scalar
Addition of a vector to a scalar
7
Which of the following instruments are used to measure pressure ?
Barometer
All of the above
Inclined Manometer
Piezometer
8
Which of the following methods are used to analyse the forces in a truss structure ?
Method of Members
Method of Pins
Methods of Sections
Methods of Joints
9
Which of the following 2d connections has a reaction force and a reaction moment?
All of the above
4 - Sliding Support
1 - Clamped Support
2 and 3 - Pin Connection & Roller Supports
10
Which of these equations resembles the quotient rule?
2
1
4
3
11
What is a line integral?
An integral that converts an area into a line
An integral evaluated over a line
An integral that converts a volume into a curve
An integral evaluated over a curve

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