Important Inventions and Discoveries in World » Exercise – 1
26. What did cardiologist Dr. Paul Zoll invent in Massachusetts in 1952?
(a) EKG
(b) Artificial heart valve
(c) Artificial heart
(d) Pacemaker
Explanation
Explanation : The pacemaker is an electrical device that regulates the heartbeat.
Subject Name : General Knowledge |
Exam Name : UPSC, SSC, KVS, NVS, IBPS, RBI, SBI, RRB
|
Posts Name : Post Graduate Teacher, College Lecturer, Officer, Office Assistant, Clerk |
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