Which of the following is used for securing a tightened nut in position?
Akey
Bcotter pin
Csnap ring
Dgasket
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Which atmospheric layer contains ions and helps in wireless communication?
പ്രകാശ സ്രോതസ്സിൽ നിന്ന് നീക്കം ചെയ്തതിന് ശേഷവും പ്രകാശം പുറപ്പെടുവിക്കുന്നത് തുടരുന്ന പ്രതിഭാസം ഏതാണ്?
A combinational logic circuit which is used to sent data coming from a source to two or more seperate destinations is called as ?
Which of the following is/are useful effort(s) for sustainability of resources?
- a. Switching off unnecessary lights and fans
- b. Using lift instead of stairs
- c. Repairing leaking taps for conserving water
- d. Using empty containers to store things
- e. Going to school by your own car instead of cycling