The flux used in soldering steel sheet?
AHydrochloric acid
BZinc chloride
CAmmonium chloride
DResin
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
ശബ്ദത്തെ വൈദ്യുതി സിഗ്നലുകൾ ആക്കി മാറ്റുന്നത് എന്ത്?
Very small time intervals are accurately measured by
Which of the following statements is/are true in case of an incandescent filament bulb?
- (a) Filament can be made of tungsten or nichrome.
- (b) The glass envelope covering the filament is filled with inactive gases such as nitrogen or argon.
- (c) Since the filament used is thin, its resistivity is very low.
- (d) The resistivity of the filament is low to allow more current.
- (e) The filament material used should have high melting point.
Which of the following statements are correct?
- (a). For a lens the first principal focus is the position of the object whose image is at infinity
- (b) For a lens the first principal focus is the position of the object whose image is formed at twice the focal length.
- (c) For a lens the second principal focus is the position of the real image whose object is at infinity
- (d) For a lens the second principal focus is the position of the object whose image is formed at twice the focal length
ഇന്ത്യയുടെ രണ്ടാംഘട്ട ആണവ പരീക്ഷണങ്ങൾ നടത്തിയപ്പോൾ പ്രധാനമന്ത്രി ആരായിരുന്നു ?