1. Generally which kind of threads are done in domestic plumbing?   A. BS

PB. BS

PTC. NP

TD. None of

above2. IDENTIFY THE PIPE CLASS FOR DOMESTIC G.I. CONNECTIONA. A

CLASSB. B

CLASSC. C

CLASSD. NONE OF

ABOVE3. Ball valve installation in fall to open directionA. Tru

eB. Fals

e4. When UPSO shutt-off the flow from Regulator ?A. Down stream pressure increase from permissible

limitB. upstream pressure increase from permissible

limitC. upstream pessure decrease from permissible

limitD. downstream pressure decrease from permissible

limit5. BY USE OF WHICH GAUGE WE CAN CHECK THREAD OF G.I. FITTINGS.A. MICROMETER SCREW

GAUGEB. VERNIYER

CALIPERC. RING

GAUGED. PLUG

GAUGE6. Max. Flow Rate of G-1.6 Domestic meterA. 1.6 Qubic Meter Per

HourB. 0.16 Qubic Meter Per

HourC. 2.5 Qubic Meter Per

HourD. none of

Above7. What is the unit for Natural Gas Measurment?A. Qubic

MeterB. Qubic Meter Per

Hour

C. SCMH (standard cubic meter per hour).

D. SCM (Standard Cubic Meter)

8. What is the full name of ''PTFE'' (TEFLON) ?   A. Poly tetra fluoro

ethaneB. Poly tetra fluoro

ethelyneC. Poly tetra fluoro

eatherD. Poly tetra fero

eathaneE. None of

above9. OPSO & UPSO are safety devises attached with Regulator.  A. Tru

eB. Fals

e10. Above Which Pressure CRV (creep relief valve) of Domestic Regulator B-1.6 allove to pass gas ?A. 1.6

BarB. 0.16

BarC. 35 Mili

BarD. 2.0

Bar