Principles of Engineering Semester 1 questions with
accurate answers
_______ is defined as a energy source that cannot be replaced.
Ans✓✓✓ Nonrenewable
_______________ is defined as a energy source that can be replaced.
Ans✓✓✓ Renewable
_______________ is defined as a energy source that cannot run out.
Ans✓✓✓ inexhaustable
A __________ consists of two or more gears assembled in order to
transfer energy from one axis to others. Ans✓✓✓ gear train
A civil engineer must design a wheelchair-accessible ramp next to a set
of steps leading up to a building. The height from the ground to the top
of the stairs is 3 ft. Based on ADA codes, the slope must be 1:12 or less.
Slope is equal to the rise of the ramp divided by the run of the ramp.
Using the ADA code, what is the allowable minimum length of the ramp
base? Ans✓✓✓ 36 ft
A construction crew lifts approximately 500 lb of material several times
during a day from a flatbed truck to a 20 ft rooftop. A block and tackle
system with 50 lb of effort force is designed to lift the materials.
, What is the required actual mechanical advantage? Ans✓✓✓ 10
A motor is driving an axle with a 6.0 in. diameter drive gear. The speed
of the motor is 20. rpm. A gear must be attached that increases the speed
to 100. rpm. What size diameter should the attached gear be? Ans✓✓✓
1.2 in
A nut driver with a 2 inch diameter handle is used to install a ¼ 24 UNC
bolt into a robotic arm.
Determine the circumference where the effort is applied. Ans✓✓✓ 6.28
in
A simple gear train is composed of three gears. Gear A is the driver and
has 5 teeth, gear B has 15 teeth, and gear C has 10 teeth.
If the output is at C, what is the gear ratio? Ans✓✓✓ 2:1
A simple gear train is composed of three gears. Gear A is the driver and
has 5 teeth, gear B has 15 teeth, and gear C has 10 teeth. If gear A
rotates at 100 rpm, how fast is gear C rotating? Ans✓✓✓ 50 rpm
A wheel barrow is used to lift a 200 lb load. The length from the center
of the wheel to the center of the load is 2 ft. The length from the wheel
to the effort is 5 ft.
accurate answers
_______ is defined as a energy source that cannot be replaced.
Ans✓✓✓ Nonrenewable
_______________ is defined as a energy source that can be replaced.
Ans✓✓✓ Renewable
_______________ is defined as a energy source that cannot run out.
Ans✓✓✓ inexhaustable
A __________ consists of two or more gears assembled in order to
transfer energy from one axis to others. Ans✓✓✓ gear train
A civil engineer must design a wheelchair-accessible ramp next to a set
of steps leading up to a building. The height from the ground to the top
of the stairs is 3 ft. Based on ADA codes, the slope must be 1:12 or less.
Slope is equal to the rise of the ramp divided by the run of the ramp.
Using the ADA code, what is the allowable minimum length of the ramp
base? Ans✓✓✓ 36 ft
A construction crew lifts approximately 500 lb of material several times
during a day from a flatbed truck to a 20 ft rooftop. A block and tackle
system with 50 lb of effort force is designed to lift the materials.
, What is the required actual mechanical advantage? Ans✓✓✓ 10
A motor is driving an axle with a 6.0 in. diameter drive gear. The speed
of the motor is 20. rpm. A gear must be attached that increases the speed
to 100. rpm. What size diameter should the attached gear be? Ans✓✓✓
1.2 in
A nut driver with a 2 inch diameter handle is used to install a ¼ 24 UNC
bolt into a robotic arm.
Determine the circumference where the effort is applied. Ans✓✓✓ 6.28
in
A simple gear train is composed of three gears. Gear A is the driver and
has 5 teeth, gear B has 15 teeth, and gear C has 10 teeth.
If the output is at C, what is the gear ratio? Ans✓✓✓ 2:1
A simple gear train is composed of three gears. Gear A is the driver and
has 5 teeth, gear B has 15 teeth, and gear C has 10 teeth. If gear A
rotates at 100 rpm, how fast is gear C rotating? Ans✓✓✓ 50 rpm
A wheel barrow is used to lift a 200 lb load. The length from the center
of the wheel to the center of the load is 2 ft. The length from the wheel
to the effort is 5 ft.
