308ÊÒÄÚÿһÕÕÃ÷֧·ÉÏÈÛ¶ÏÆ÷ÈÛÌåµÄ¶î¶¨µçÁ÷²»Ó¦³¬¹ý( )¡£ A¡¢ 5~10A B¡¢ 15~20A C¡¢ 25~40A D¡¢ 50~100A [´ð°¸] B
309 ÊÒÄÚÿһÕÕÃ÷֧·ÉÏËù½ÓµÆ¾ß£¨°üÀ¨²å×ù£©£¬ÔÔòÉϲ»³¬¹ý( )¸ö¡£ A¡¢ 10~15 B¡¢ 20~25 C¡¢ 30~40 D¡¢ 50~100 [´ð°¸] B
310 ÒÔÆøÌå·ÅµçµÆÎªÖ÷Òª¸ººÉµÄÈýÏàËÄÏßµç·ÖУ¬ÖÐÐÔÏß½ØÃ治ӦСÓÚ( )¡£ A¡¢ ÏàÏß½ØÃæ
B¡¢ ÏàÏß½ØÃæµÄ2/3 C¡¢ ÏàÏß½ØÃæµÄ1/2 D¡¢ ÏàÏß½ØÃæµÄ1/3 [´ð°¸] A
311Óɹ«¹²µÍѹÅäµçÍøÅäµçµÄÕÕÃ÷¸ººÉ£¬( )AÒÔÉÏÓ¦²ÉÓÃÈýÏàËÄÏßÅäµç¡£ A¡¢ 100 B¡¢ 50 C¡¢ 30 D¡¢ 20 [´ð°¸] C
312ÊÒÄÚ·ÇÉú²ú»·¾³µÄµ¥Ïà²å×ù¹¤×÷µçÁ÷Ò»°ã¿É°´( )A¿¼ÂÇ¡£ A¡¢ 1 B¡¢ 1.5 C¡¢ 2.5 D¡¢ 6 [´ð°¸] D
313 ¹¦ÂÊ( )W¼°ÒÔÉϵÄÕÕÃ÷µÆ¾ßÓ¦²ÉÓôɵÆ×ù¡£ A¡¢ 100 B¡¢ 200 C¡¢ 500 D¡¢ 1000
[´ð°¸] A
314 ( )ÊôÓÚÈÈ·øÉäµç¹âÔ´¡£ A¡¢ ½ðÊô±»¯ÎïµÆ B¡¢ ±ÎÙµÆ C¡¢ ¸ßÑ¹Ë®ÒøµÆ D¡¢ ÈÕ¹âµÆ [´ð°¸] B
315Ò»Ö§40WÈÕ¹âµÆµÄµç¸ÐʽÕòÁ÷Æ÷ÏûºÄµÄÓй¦¹¦ÂÊԼΪ( )W¡£ A¡¢ 1 B¡¢ 2 C¡¢ 4
D¡¢ 8¡«10 [´ð°¸] D
316 ´øÓеç¸ÐʽÕòÁ÷Æ÷µÄÓ«¹âµÆµÄ¹¦ÂÊÒòÊýΪ( )¡£ A¡¢ 0.2¡«0.4 B¡¢ 0.4¡«0.6 C¡¢ 0.6¡«0.8 D¡¢ 0.8¡«1 [´ð°¸] B
317´øÓеç×ÓÕòÁ÷Æ÷µÄÓ«¹âµÆµÄ¹¦ÂÊÒòÊýΪ( )¡£
A¡¢ 0.4¡«0.6 B¡¢ 0.6¡«0.8 C¡¢ 0.8¡«0.9 D¡¢ >0.9 [´ð°¸] D
318 »§ÍâµÆ¾ßÒ»°ãӦѡÓÃ( )Ð͵ƾߡ£ A¡¢ ÆÕͨ B¡¢ ¿ªÆô C¡¢ ·ÀË® D¡¢ ·À±¬ [´ð°¸] C
319ÂݿڵÆ×ùµÄ¶¥Ð¾Ó¦Óë( )Á¬½Ó¡£ A¡¢ ÖÐÐÔÏß B¡¢ ¹¤×÷ÁãÏß C¡¢ ÏàÏß D¡¢ ±£»¤Ïß [´ð°¸] C
320ÂݿڵÆ×ùµÄÂÝ¿ÚÓ¦Óë( )Á¬½Ó¡£ A¡¢ ÖÐÐÔÏß B¡¢ ±£»¤ÁãÏß C¡¢ ÏàÏß
D¡¢ ±£»¤µØÏß [´ð°¸] A
321¿â·¿ÄÚ²»Ó¦×°Éè( )WÒÔÉÏµÄ°×³ãµÆ¡£ A¡¢ 25 B¡¢ 40 C¡¢ 60 D¡¢ 100 [´ð°¸] C
322Éú²ú³¡ËùÊÒÄÚµõµÆ²ÉÓÃ100¡«150W°×³ãµÆ£¨Óз´ÉäÕÖ£©£¬µÆ¾ß¾àµØÃæ×îµÍÐü¹Ò¸ß¶ÈÒ»°ã²»Ó¦Ð¡ÓÚ( )m¡£ A¡¢ 1.5 B¡¢ 2 C¡¢ 2.5 D¡¢ 3 [´ð°¸] C
323 250W´øÓз´ÉäÕֵĸßѹӫ¹âµÆµÄ¸ß¶È²»Ó¦Ð¡ÓÚ( )m¡£ A¡¢ 2.5 B¡¢ 3 C¡¢ 4 D¡¢ 5 [´ð°¸] D
324 ²ÉÓøֹÜ×÷µõµÆµÄµõ¸Ëʱ£¬¸Ö¹ÜÄÚ¾¶²»µÃСÓÚ( )mm£¬¸Ö¹Ü±Úºñ¶È²»Ó¦Ð¡ÓÚ1.5 mm¡£ A¡¢ 6 B¡¢ 8 C¡¢ 10 D¡¢ 12 [´ð°¸] C
325ÆÕͨµÆ¾ßÓë¿ÉȼÎïÖ®¼äµÄ¾àÀ벻ӦСÓÚ( )m¡£·ñÔò£¬Ó¦²ÉÈ¡¸ôÈÈ¡¢É¢ÈÈ´ëÊ©¡£ A¡¢ 0.1 B¡¢ 0.2 C¡¢ 0.3 D¡¢ 0.4 [´ð°¸] C
326µ¥ÏàÈýÑÛ²å×ùµÄ ( ) Ó¦µ±½ÓÔÚ±£»¤ÏßרÓõĽÓÏß¶Ë×ÓÉÏ¡£ A¡¢ ÏàÏß B¡¢ ¹¤×÷ÁãÏß C¡¢ ±£»¤Ïß D¡¢ ²»½ÓÏß [´ð°¸] C
327ÎÒ¹ú³£Óõ¼Ïß±ê³Æ½ØÃæ25mm2 Óë50mm2µÄÖм仹ÓÐÒ»¼¶µ¼ÏߵĽØÃæÊÇ( )mm2¡£ A¡¢ 30 B¡¢ 35 C¡¢ 40 D¡¢ 45 [´ð°¸] B
328ÎÒ¹ú³£Óõ¼Ïß±ê³Æ½ØÃæ2.5mm2 Óë6mm2µÄÖм仹ÓÐÒ»¼¶µ¼ÏߵĽØÃæÊÇ( )mm2¡£ A¡¢ 3 B¡¢ 3.5 C¡¢ 4 D¡¢ 5 [´ð°¸] C
329ÎÒ¹ú³£Óõ¼Ïß±ê³Æ½ØÃæ70mm2 Óë120mm2µÄÖм仹ÓÐÒ»¼¶µ¼ÏߵĽØÃæÊÇ( )mm2¡£ A¡¢ 80 B¡¢ 95 C¡¢ 100 D¡¢ 110 [´ð°¸] B
330 µ±Ïß·½Ï³¤Ê±£¬Ò˰´( )È·¶¨µ¼Ïß½ØÃæ¡£
A¡¢ »úеǿ¶È B¡¢ ÔÊÐíµçѹËðʧ C¡¢ ÔÊÐíµçÁ÷
D¡¢ ¾¼ÃµçÁ÷ÃÜ¶È [´ð°¸] B
331µÍѹ¼Ü¿ÕÏß·µ¼Ïß½ØÃæ»ýµÄÑ¡ÔñÔÔòÊÇ( )¡£
A¡¢ °´·¢ÈÈÌõ¼þÑ¡Ôñ B¡¢ °´»úеǿ¶ÈÑ¡Ôñ
C¡¢ °´ÔÊÐíµçѹËðʧÌõ¼þÑ¡Ôñ£¬°´·¢ÈÈÌõ¼þ¼°»úеǿ¶ÈÀ´Ð£Ñé
D¡¢ °´·¢ÈÈÌõ¼þÑ¡Ôñ£¬°´»úеǿ¶ÈÀ´Ð£Ñé [´ð°¸] C
332°´ÕÕ»úеǿ¶ÈµÄÒªÇ󣬱±¾©³ÇÇøµÍѹ¼Ü¿ÕÏß·ÂÁ½ÊÏߵĽØÃæ²»µÃСÓÚ( )mm2¡£A¡¢ 10 B¡¢ 16 C¡¢ 25 D¡¢ 35 [´ð°¸] C
333°´ÕÕ»úеǿ¶ÈµÄÒªÇ󣬱±¾©³ÇÇøµÍѹ¼Ü¿ÕÏß·¸ÖоÂÁ½ÊÏߵĽØÃæ²»µÃСÓÚ( )mm2¡£ A¡¢ 10 B¡¢ 16 C¡¢ 25 D¡¢ 35 [´ð°¸] C
334µÍѹ¼Ü¿ÕÏßÏàÐòÅÅÁÐ˳Ðò£¬ÃæÏòµçÔ´´Ó×ó²àÆðÊÇ( )¡£ A¡¢ U£V£W£N B¡¢ U£N£V£W C¡¢ N£W£V£U D¡¢ ÈÎÒâÅÅÁÐ [´ð°¸] B
335Ö±Ï߸Ëͬ¸Ë¼ÜÉèµÄÉÏ¡¢Ï²ãµÍѹºáµ£Ö®¼äµÄ×îС¾àÀë²»µÃСÓÚ( )m¡£ A¡¢ 0.4 B¡¢ 0.5 C¡¢ 0.6 D¡¢ 0.8 [´ð°¸] C
336ÔÚÈË¿ÚÃܼ¯µØÇø£¬µÍѹ¼Ü¿ÕÏß·µ¼ÏßÀëµØÃæµÄ×îС¸ß¶ÈΪ( )m¡£ A¡¢ 6 B¡¢ 5.5 C¡¢ 5 D¡¢ 4.5 [´ð°¸] A
337µÍѹ¼Ü¿ÕÏß·µ¼ÏßÀ뽨ÖþÎïµÄ×îС´¹Ö±¾àÀëΪ( )m¡£ A¡¢ 1 B¡¢ 1.5 C¡¢ 2 D¡¢ 2.5 [´ð°¸] D
338µÍѹ¼Ü¿ÕÏß·µ¼ÏßÀ뽨ÖþÎïµÄ×îСˮƽ¾àÀëΪ( )m¡£ A¡¢ 0.6 B¡¢ 0.8 C¡¢ 1.0 D¡¢ 1.2 [´ð°¸] C
339µÍѹ¼Ü¿ÕÏß·µ¼ÏßÓëÊ÷ľµÄ×îСˮƽ¾àÀ루×î´ó·çÆ«Çé¿ö£©Îª( )m¡£ A¡¢ 0.6 B¡¢ 0.8 C¡¢ 1.0 D¡¢ 1.2 [´ð°¸] C
340 ¸Ë³¤8 mµÄ»ìÄýÍÁµç¸ËÂñÉèÉî¶È²»µÃСÓÚ( )m¡£ A¡¢ 1.0 B¡¢ 1.2 C¡¢ 1.5 D¡¢ 1.8 [´ð°¸] C
341ÆÕͨÀÏßÓëµØÃæµÄ¼Ð½Ç²»µÃ´óÓÚ( )¡£ A¡¢ 75 B¡¢ 70 C¡¢ 65 D¡¢ 60 [´ð°¸] D
342µÍѹ½Ó»§Ïß¿çÔ½½»Í¨ÒªµÀ£¬µ¼ÏßÔÚ×î´ó»¡´¹Ê±£¬ÀëµØÃæµÄ×îС¸ß¶ÈΪ( )m¡£ A¡¢ 6 B¡¢ 5.5 C¡¢ 5 D¡¢ 4.5 [´ð°¸] A
343 µÍѹ½Ó»§Ïß¿çÔ½½»Í¨À§ÄѵĽֵÀʱ£¬µ¼ÏßÔÚ×î´ó»¡´¹Ê±£¬ÀëµØÃæµÄ×îС¸ß¶ÈΪ( )m¡£ A¡¢ 5 B¡¢ 4 C¡¢ 3.5 D¡¢ 3 [´ð°¸] A
344 ¸ËÉÏ×÷ҵʱ£¬¸ËÉϸËÏ´«µÝ¹¤¾ß¡¢Æ÷²ÄÓ¦²ÉÓÃ( )·½·¨¡£ A¡¢ Å×ÈÓ
B¡¢ ÉþºÍ¹¤¾ß´ü C¡¢ ÊÖµÝÊÖ D¡¢ ³¤¸ËÌôËÍ
[´ð°¸] B
345½»Áª¾ÛÒÒÏ©¾øÔµµ¥Ð¾µçÁ¦µçÀµÄ×îСÍäÇú°ë¾¶²»µÃСÓÚµçÀÂÍâ¾¶µÄ( )±¶¡£ A¡¢ 5 B¡¢ 10 C¡¢ 15 D¡¢ 20 [´ð°¸] D
346½»Áª¾ÛÒÒÏ©¾øÔµ¶àоµçÁ¦µçÀµÄ×îСÍäÇú°ë¾¶²»µÃСÓÚµçÀÂÍâ¾¶µÄ( )±¶¡£ A¡¢ 5 B¡¢ 10 C¡¢ 15 D¡¢ 20 [´ð°¸] C
347ÎÞǦ°ü»¤Ì×»òÎÞ¸Öîø»¤Ì×ÏðÆ¤¾øÔµµçÁ¦µçÀµÄÍäÇú°ë¾¶²»µÃСÓÚµçÀÂÍâ¾¶µÄ( )±¶¡£ A¡¢ 2 B¡¢ 6 C¡¢ 8 D¡¢ 10 [´ð°¸] D
348Ö±ÂñµçÀÂÓëÈÈÁ¦¹Ü¹µÆ½ÐÐʱ£¬Æä¼ä¾àÀë²»µÃСÓÚ( )m¡£ A¡¢ 0.5 B¡¢ 1 C¡¢ 1.5 D¡¢ 2 [´ð°¸] D
349Ö±ÂñµçÀÂÓëÈÈÁ¦¹Ü¹µ½»²æ½Ó½üʱ£¬Æä¼ä¾àÀë²»µÃСÓÚ( )m¡£ A¡¢ 0.5 B¡¢ 1 C¡¢ 1.5 D¡¢ 2 [´ð°¸] A
350Ö±ÂñµçÀÂÓë³ÇÊеÀ·ƽÐÐʱ£¬Æä¼ä¾àÀë²»µÃСÓÚ( )m¡£ A¡¢ 0.7 B¡¢ 1 C¡¢ 1.5 D¡¢ 2
[´ð°¸] B
351Ö±ÂñµçÀÂÓë³ÇÊеÀ·½»²æ½Ó½üʱ£¬Æä¼ä¾àÀë²»µÃСÓÚ( )m¡£ A¡¢ 0.7 B¡¢ 1 C¡¢ 1.5 D¡¢ 2 [´ð°¸] A
352Ö±ÂñµçÀµÄ×îСÂñÉèÉî¶ÈÒ»°ãΪ( )m¡£ A¡¢ 0.6 B¡¢ 0.7 C¡¢ 1
D¡¢ 2 [´ð°¸] B
353Ö±ÂñµçÀ¹µµ×µçÀÂÉÏ¡¢ÏÂÓ¦ÆÌÉèºñ( )mmµÄɳ»òÈíÍÁ¡£ A¡¢ 50 B¡¢ 100 C¡¢ 150
D¡¢ 200 [´ð°¸] B
354Ö±ÂñµçÀÂÖ±Ïß¶Îÿ( )mÓ¦ÉèÖÃÃ÷ÏԵķ½Î»±êÖ¾»ò±ê×®¡£ A¡¢ 50¡«100 B¡¢ 100¡«150 C¡¢ 150¡«200 D¡¢ 200¡«250 [´ð°¸] A
355µçÀ±ê×®Ó¦¸ß³öµØÃæ( )mm¡£ A¡¢ 50¡«100 B¡¢ 150¡«200 C¡¢ 300¡«400
D¡¢ 500 [´ð°¸] B
356µçÁ¦µçÀÂÂÁоÏßµÄÁ¬½Ó³£²ÉÓÃ( )¡£ A¡¢ ²å½Ó·¨ B¡¢ ǯѹ·¨ C¡¢ °ó½Ó·¨ D¡¢ º¸½Ó·¨ [´ð°¸] B
357ÍоµçÀÂÓëÂÁоµçÀµÄÁ¬½ÓÓ¦²ÉÓÃ( )¡£
A¡¢ ÍоºÍÂÁоֱ½Ó²øÈÆÁ¬½Ó B¡¢ Íо¶ÆÎýºóÓëÂÁо°óÏßÁ¬½Ó C¡¢ ÓÃÍÖÆÏß¼Ðѹ½Ó
D¡¢ רÓõÄÍÂÁÁ¬½Ó¹Üѹ½Ó
[´ð°¸] D