2019

D

All of the following processes can be found on a psychrometric chart

except

A. heating and humidifying.
C. cooling and dehumidification.
B. black body radiation.
D. evaporative cooling.

B

The Carnot refrigeration cycle includes all of the following processes

except

A. isentropic expansion.
C. isothermal heating.
B. isenthalpic expansion.
D. isentropic compression.

B

Which of the following statements is false?

A. The time rate of change of the angular momentum about a fixed point is

equal to the total moment of the external forces acting on the system

about the point.

B. The coefficient of restitution can be less than zero.

C. Momentum is conserved during elastic collisions.

D. The period of a simple pendulum is independent of the mass of the

pendulum.

B

When using net present worth calculations to compare two projects, which

of the following could invalidate the calculation?

A.differences in the magnitudes of the projects

B.evaluating over different time periods

C.mutually exclusive projects

D.nonconventional cash flows

B

One of the advantages of comparing interest rates to the minimum

attractive rate of return (MARR)is that

A. the MARR is easy to calculate.

B. an effective interest rate need never be known.

C. it need not be used in numerical calculations.

D. it is guaranteed by an agency of the federal government.

D

What do you thing is the reason why does a spinning ice skater’s angular

velocity increase as she brings her arms in toward her body?

A. Her mass moment of inertia is reduced.

B. Her angular momentum is constant

C. Her radius of gyration is reduced.

D. All of these

D

All of the following units are acceptable for quantifying work except

A. foot-pounds.
C. joules.
B. watt-seconds.
D. dynes.

B

The rule of 72 can be used to calculate the

A. number of monthly payments in six years.

B. time to double an investment.

C. time to triple an investment.

D. time to decrease an investment to 1/72 of its original value.

C

One item that differentiates the “Christmas club problem” from a standard

cash flow problem is

A. varying interest rates through the life of the problem.

B. varying cash flows through the life of the problem.

C. the existence of a payment at the beginning of the time at t = 0 and

the absence of a payment at the end of the problem.

D. the nonexistence of interest in the problem at all.

B

Air enters a cooling tower at 50 F dry-bulb and 49F wet-bulb temperature.

It leaves the tower saturated at 70F. Which condition is a likely outcome

of this?

A. Adsorption
C. Condensation
B. Fog
D. Sublimation

C

The parameter that has the greatest limiting effect on the thermal

performance of an open, evaporative cooling tower is:

A. Approach
C. Range
B. Dry-bulb temperature
D. Wet-bulb temperature

D

How many joules is equivalent to the energy of 1 kg matter??

A. 10 (raised to -10) J
C. 1 MJB. 10(raised to -15) J
D. 10 (raised to 17)*

D

The Economic Order Quantity (EOQ) is defined as the order quantity which

minimizes the inventory cost per unit time. Which of the following is not

an assumption of basic EOQ model with no shortages?

A. The demand rate is uniform and constant.

B. There is a positive cost on each unit inventoried.

C. The entire reorder quantity is delivered instantaneously.

D. There is an upper bound on the quantity ordered.

D

Which of the following is the engineering economic analysis that is

concerned with situations in which there is not enough information to

determine probability or frequency for the variables involved?

A. synthetical analysis

B. risk analysis

C. sensitivity analysis

D. uncertainty analysis

D

When exposed to the atmosphere, which of the following liquids is coldest?

A. oxygen
C. nitrogen
B. argon
D. helium

B

Which of the following is the acceleration produced when a particle moves

away from its center of rotation?

A. tangential acceleration
C. centripetal acceleration
B. coriolis acceleration
D. centrifugal acceleration

D

All of the following are recognized and accepted methods of general

systems modelling except:

A. Monte Carlo simulation.

B. Replacement and renewal models.

C. Decision trees.

D. Rule of thumb methods.

A

Comparing successive terms of an unknown series to those of a series that

is known to converge or diverge is called :

A. the comparison test.
C. the ratio test.
B. L’Hôpital’s rule.
D. the mean value theorem.

C

A cable carrying a constant uniform load per unit length along the length

of the cable (e.g., a loose cable loaded by its own weight) will have a

shape of a

A. Straight line
C. catenary
B. Parabola
D. hyperbola

A

Which of the following metals has the highest specific heat capacity at

1000C?

A. aluminum
C. copper
B. bismuth
D. iron

B

If an all-positive term diverging series is equal term for term to a

converging series with alternating signs, the original series is said to

be:

A. Monotonically increasing.
C. Absolutely convergent.
B. Conditionally convergent.
D. Finite.

B

The study of the practical laws of fluid flow and the resistance of open

pipes and channels is the purview of

A. fluid mechanics.
C. aerodynamics
B. hydraulics.
D. thermodynamics.

B

The relationship between the total volume of a mixture of nonreacting

gases and their partial volumes is given by

A. gravimetric fractions.
C. Dalton’s law.
B. Amagat’s law.
D. mole fractions.

B

All of the following processes are irreversible except

A. stirring of a viscous fluid.

B. a isentropic deceleration of a moving, perfect fluid.

C. an unrestrained expansion of a gas.

D. phase changes.

B

What is the indirect product cost (IPC) spending variance

A. the difference between actual IPC and IPC absorbed

B. the difference between actual IPC and IPC volume adjusted budget

C. the IPC volume adjusted budget (fixed + volume(variable IPC rate))

D. the IPC volume adjusted budget minus the total IPC absorbed

C

The sinking fund method is seldom used in industry because

A. the term “sinking fund” has a bad connotation for business.

B. sometimes it gives misleading answers.

C. the initial depreciation is low.

D. the initial depreciation is high.

D

Equilibrium conditions exist in all except which of the following:

A. in reversible processes.

B. along ideal frictionless, nondissipative paths where forward and

reverse processes occur at equal rates.

C. in processes where driving forces are infinitesimals.

D. in a steady state flow process.

C

The ratio of a load-bearing force to the applied force for a lever is

called its

A. Load factor
C. mechanical advantage
B. Efficiency
D. influence factor