[单项选择]The combustion of larger molecules,（）have multiple carbon-carbon bonds involves a more complex series of reactions.
A. what
B. which
C. that
D. who

[单项选择]Multiple users have reported not being able to print to a network printer. Which of the followingcommands will test the network connectivity status of the printer?（）
A. rsync
B. netstat
C. ping
D. ipconfig

[单项选择]You have multiple realms configured on a MAG Series device. A user is authenticating with a non- Junos Pulse Access Control Service client. The username does not contain a realm suffix.Which behavior will the user experience?（）
A. The user will not be able to log-in, as the Junos Pulse Access Control Service device cannot map the user to a realm when the realm value is empty.
B. The user will be mapped to all realms available to the user.
C. The Junos Pulse Access Control Service device displays a page where the user must choose from a list of realms.
D. The endpoint is assigned to the first realm in the list whose authentication server is a match with the endpoints software.

[单项选择]You plan to have a larger moving window size for the default system-defined moving window baseline because you want to use the adaptive threshold. Which statement factors in this consideration while increasing the size of the moving window?（）
A. The collection level for the AWR should be set to BASIC
B. The moving window size must be less than Undo Retention
C. The moving window size should be greater than the Automatic Workload Repository (AWR) retention period
D. The moving window size should be equal to or less than the Automatic Workload Repository (AWR) retention period

[单项选择]The energy associated with molecules is known as （）.
A. kinetic energy
B. potential energy
C. mechanical energy
D. thermal energy

[单项选择]Internal combustion engine crankcase vent outlets must be equipped with （）
A. hinged rain guards
B. corrosion resistant flame screens
C. dipsticks for measuring oil levels
D. crankcase ventilation fans

[单项选择]Spontaneous combustion could occur in（）
A. paint thinner in an open can
B. fuel accumulation in the bilge
C. oily rags in an unvented compartment
D. gasoline stored in steel drums

[单项选择]Diesel engines obtain combustion air through turbo chargers，blowers，or（）.
A. air starters
B. carburetors
C. natural aspiration
D. air receivers

[单项选择]Theoretical perfect combustion in a diesel engine yields by-products of （）.
A. aldehydes and carbon dioxide
B. water vapor and carbon monoxide
C. nitrogen and carbon monoxide
D. water vapor and carbon dioxide

[单项选择]Which statement about diesel engine combustion is true?（）
A. Combustion does not begin until the piston starts down on the power stroke
B. Maximum combustion pressure is reached before TDC
C. Turbulence in the cylinder causes a delay in ignition
D. Maximum cylinder firing pressure is not developed until the piston passes TDC

[单项选择]Fires resulting from spontaneous combustion are usually caused by the improper disposal of（）.
A. cigarette butts
B. oily rags
C. burner torches
D. lighted matches

[单项选择]Incomplete combustion in a running diesel engine can cause piston rings to become stuck as a result of （）
A. residual carbon deposits
B. lube oil viscosity breakdown
C. uneven heat expansion of the rings
D. uneven heat expansion of the piston

[单项选择]The lowest temperature at which fuel combustion becomes self-sustaining in the presence of a source of ignition, is defined as the （）
A. auto-ignition point
B. flash point
C. burning temperature
D. fire point

[单项选择]A diesel engine with a combustion chamber located between the crowns of two pistons is known as a/an （）.
A. double-acting engine
B. opposed pistons engine
C. single-acting engine
D. horizontal acting engine

[单项选择]Which of the combustion parameters listed is used in a diesel engine, but NOT related to the injection system?（）
A. Atomization
B. Metering
C. Effective stroke
D. Penetration

[单项选择]Successful combustion inside the cylinders of a diesel engine is dependent upon （）.
A. fine atomization
B. high temperature
C. good mixing of fuel and air
D. all of the above

[单项选择]Combustion knock occurring in a diesel engine can be caused by （）
A. low coolant temperature
B. insufficient fuel
C. high ambient temperature
D. carbon buildup on the injector tips

[单项选择]Since the burning or combustion takes place within the engine itself, the engine is known as （）.
A. a fire -tube boiler
B. an internal combustion engine
C. an external combustion engine
D. an internal combustion generator

[单项选择]A fire starting by spontaneous combustion can be expected in which condition?（）.
A. Paints，varnish，or other liquid flammables are stowed in a dry stores locker
B. Inert cargoes such as pig iron are loaded in a wet condition
C. Oily rags are stowed in a metal pail
D. Clean mattresses are stored in contact with an electric light bulb