ESAS 11-2

Dual Combustion cycle is used in:

• Petrol Engine

• Diesel Engine

• Steam Engine

• Gas Turbine

In a Throttling process

• There is no work done

• There is no heat transfer

• There is no change in enthalpy

• All of these

For some interest rate i and some number of interest periods n, the uniform series capital recovery factor is 0.0854 and the sinking fund factor is 0.0404. The interest rate i must be

• 3.5 percent

• 4.5 percent

• 6 percent

• 8 percent

A 60-inch diameter steel pipe, 3/8 inch thick, carries water under a pressure head of 550 feet. Determine the hoop stress in the steel.

• 4,760 psi

• 38,080 psi

• 9,520 psi

• 19,040 psi

If two objects have the same momentum, but different masses, which of these is possible?

• The one with less mass has more kinetic energy.

• The one with more mass requires more impulse to bring it to that momentum from rest.

• The same work is done to each to accelerate it from rest.

• They each have the same velocity.

The present worth of an obligation of $10,000 due in 10 years if money is worth 9 percent is nearest to

• $10,000

• $9,000

• $7,500

• $4,500

The wheel of an automobile spinning at 180 rpm begins to experience a 10 rad/s² angular acceleration. What is the angular velocity of the wheel after 5 seconds?

• 230 rpm

• 275 rpm

• 477 rpm

• 657 rpm

Which of the following is not a ductile metal?

• Aluminum

• Copper

• Mild Steel

• Lead

As a person moves closer to a plane mirror, the size of the image formed by the mirror

• Remains the same

• Gets larger

• Gets smaller

• Increases, then decreases

A manufacturing company buys a machine for P500,000. It estimates the machine's useful life is 20 years and that it can then be sold for P50,000. Using straight-line depreciation, what is the annual depreciation charge?

• P20,000

• P22,500

• P25,000

• P27,500