A dry-type spark arrestor removes sparks from a diesel engine exhaust by（）

A、increasing the linear velocity of the exhaust gases

B、changing directions of exhaust gas flow

C、decreasing the temperature of the exhaust gases

D、accelerating the exhaust gas through a reduced size orifice

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更多“A dry-type spark arrestor removes sparks from a diesel engine exhaust by（）”相关的问题

第1题

[单选题] 假定已经定义了一个名为arr_type的PL/SQL表类型，那么怎样实例化一个arr_type类型的变量（）

A、v_arr arr_type; B、v_arr is arr_type; C、v_arr of arr_type; D、v_arr arr_type%type;

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第2题

[单选题] A dry-type exhaust muffler clogged with soot, will cause（）

A、low exhaust temperature B、loss of engine power C、burned intake valves D、engine racing

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第3题

[] 在PL/SQL中定义一个可以存放雇员表（EMP）的员工名称（ENAME）的PL/SQL表类型，应该（）

A、A.type array arr_type[emp.ename%type] index by binary_integer; B、B.type table arr_type[emp.ename%type] index by binary_integer; C、C.type arr_type is table of emp.ename%type index by binary_integer; D、D.type arr_type is pl_sql table of emp.ename%type index by binary_integer;