Mechanical Engineering Quiz # 30

What is the conversion efficiency of power plants in the US?

Watt

Watts

Kilowatt

Rate

Kilowatts

What is the expression of the conversion efficiency of power plants in the US?

CO2 emissions

Energy output

Electricity produced

Heat rate

How many Btu

3

2

1

What is a reservoir capable of doing?

Supply or absorb energy

Store or release water

Store or release gas

Store water

Allow water to flow uphill

What are thermal energy reservoirs?

Liquid fuel depot

Heat reservoir

Solid fuel depot

Battery

Engine coolant reservoir

A reservoir that can supply or absorb energy in the form of heat is known as what?

Thermal energy reservoir

Thermostat

Heat reservoir

Heat exchanger

Heat sink

What does a heat sink do?

Keeps a system at a certain temperature

Absorbs energy in the form of heat

Moves heat away from the system

What does a heat sink absorb?

Energy in the form of heat

Light

Electricity

Sound

Radiation

A what is a heat sink?

A device used to cool a computer

A metal plate with fins on it that is used to cool a microprocessor

A metal plate that becomes very hot when electricity is passed through it

A heat reservoir that absorbs energy in the form of heat

A machine that helps to regulate the heat level in a computer

What does the term "dirt tolerance" mean?

Maximum speed

Internal clearance

Engine horsepower

Maximum payload

What can be the case with displacement?

Change

Permanence

Impossible

Variable

Constant

What can be the case of the amount of liquid transferred from the inlet of the hydraulic pump to the outlet in a single revolution?

Liquid level in the tank can fall

Displacement can increase

Displacement can be variable

Displacement can be fixed

Flow rate can be fixed

How many hose assemblies are joined together by a common elbow?

Two

Four

Six

A cylinder can apply motion and what else to the element?

Torque

Heat

Electricity

Force

Velocity

What type of cylinder can apply force and motion to the moveable element in both directions?

PISTON CYLINDER

SINGLE-ACTING CYLINDER

CONICAL CYLINDER

DOUBLE-ACTING CYLINDER

REVOLUTIONARY CYLINDER

What is a DOUBLE-ACTING SLEEVE another term for?

French cuff

Half-sleeve

Two-way sleeve

V-neck

Quarter sleeve

What allows one hand push-to-connect or pull-to-disconnect convenience when the quickaction coupling female half is clamp or bulkhead mounted and connected to a hose?

BALL VALVE

CLAMP

DOUBLE-ACTING SLEEVE

PRESSURE GAUGE

SWIVEL NOZZLE

What allows one hand push-to-connect or pull-to-disconnect convenience?

Button

Dual-sided connector

Wrist strap

Other nomenclature "two-way sleeve"

Button on sleeve

Where does the passage beyond a device normally take place?

In the device

At the outlet

Behind the device

On the other side of the device

Inside the device

A passage in, or line from, a hydraulic component which returns leaked fluid to the reservoir or a vented manifold is called what?

RECEPTACLE

FLUID LEAK

VALVE

CONNECTION

DRAIN

What is another name for the manifold?

Vented

Tubes

Channels

Connected

Non-manifold

What type of measurement does drift normally take?

Ratio

Varying

Absolute

Uncertainty

What is a condition that can be applied to a device to drift it?

Static

Pre-set

GPS

Drift Compensation

Dynamic

What is the name of the gear that is attached to the driving mechanism?

The input gear

The transmission

The motor

The drive gear

The transmission gear

What is the name of the gear in a hydraulic gear pump that is rotated by the drive gear?

Driven sprocket

Driven gear

Driven wheel

Pump

Rotor

What component of a gear pump rotates the driving gear?

Output shaft

Pump body

Connecting rod

Driving mechanism

What is a measure of elastomer hardness by use of a durometer?

DUROMETER HARDNESS

RANGE OF MEASUREMENT

HARDNESS INDEX

DUROMETER FINE

DUROMETER MEDIUM

A measure of elastomer hardness by use of a what?

Mohs scale

Brinell

Shear

Vickers

Durometer

What type of device protects the male tip half if disconnected?

DUST CAP

USB CABLE

SCREW

CORD

PROTECTIVE COVER

Xcludes what?

Ineffective

Contamination

Corruption

Inability to recognize

Unnecessary