12-DARS. YOQILG‘I-ENERGETIKA-KIMYO MAJMUASI
1.
Shartli yoqilg‘i deb nimaga aytiladi?
A. 1 kg toshko‘mir yonganda hosil
bo‘ladigan energiyaga aytiladi
C. 1 kg yoqilg‘i yonganda 7 mln kkal
energiya beradigan yoqilg‘iga aytiladi
B. 1 kg yoqilg‘i yonganda 0,7 ming kkal
(29 MJ/kg) energiya beradigan, issiqlik
koeffitsenti esa bir deb qabul qilingan
yoqilg‘iga aytiladi
D. 1 t yoqilg‘i yonganda 7 ming kkal (29
MJ/kg) energiya beradigan, issiqlik
koeffitsenti esa bir deb qabul qilingan
yoqilg‘iga aytiladi
2.
1 kg tabiiy gaz yonganda qancha kaloriya issiqlik ajralib chiqadi va issiqlik koeffitsienti
nechiga teng?
A. 10,6∙10
6
kkal. (is. koeff.1,5)
C. 7,0∙10
6
kkal(is. koeff.1,5)
B. 10,5∙10
6
kkal. (is. koeff.1)
D. 3,0∙10
6
kkal(is. koeff.0,5)
3.
1 kg neft yonganda qancha kaloriya issiqlik ajralib chiqadi va issiqlik koeffitsienti nechiga
teng?
A. 10,6∙10
6
kkal(is. koeff.1,1)
C. 7,0∙10
6
kkal(is. koeff.0,43)
B. 10,6∙10
6
kkal(is. koeff.1,5)
D. 3,0∙10
6
kkal(is. koeff.0,7)
4.
1 kg toshko‘mir yonganda qanchakaloriya issiqlik ajralib chiqadi va issiqlik koeffitsienti
nechiga teng?
A. 10,4∙10
6
kkal(is. koeff.1,33)
C. 7,0∙10
6
kkal(is. koeff.1)
B. 10,5∙10
6
kkal(is. koeff.1)
D. 3,0∙10
6
kkal(is. koeff.1,5)
5.
1 kg qo‘ng‘ir ko‘mir yonganda qancha kaloriya issiqlik ajralib chiqadi va issiqlik koeffitsienti
nechiga teng?
A. 3,4∙10
6
kkal(is. koeff.0,30)
C. 7,0∙10
6
kkal(is. koeff.0,45)
B. 10,6∙10
6
kkal(is. koeff.0,7)
D. 3,1∙10
6
kkal(is. koeff.0,45)
6.
1 kg slanes yonganda qancha kaloriya issiqlik ajralib chiqadi va issiqlik koeffitsienti nechiga
teng?
A. 2,1∙10
6
kkal(is. koeff.0,30)
C. 2,5∙10
6
kkal(is. koeff.0,30)
B. 3,4∙10
6
kkal(is. koeff.1)
D. 3,1∙10
6
kkal(is. koeff.0,45)
7.
1 kg torf yonganda qancha kaloriya issiqlik ajralib chiqadi va issiqlik koeffitsienti nechiga teng?
A. 2,1∙10
6
kkal(is. koeff.0,45)
C. 2,5∙10
6
kkal(is. koeff.0,30)
{ 20 }
B. 3,4∙10
6
kkal(is. koeff.0,48)
D. 3,1∙10
6
kkal(is. koeff.1,5)
8.
1 kg quruq o‘tin yonganda qancha kaloriya issiqlik ajralib chiqadi va issiqlik koeffitsienti
nechiga teng?
A. 2,1∙10
6
kkal(is. koeff.0.30)
C. 2,4∙10
6
kkal(is. koeff.0.34)
B. 3,4∙10
6
kkal(is. koeff.0.45)
D. 3,1∙10
6
kkal(is. koeff.0.48)
9.
Turli xil yoqilg‘ilarni qazib chiqarish va ishlab chiqarilgan energiya (kirim) hamda ulardan
iqtisodiyotda foydalanish (sarf qilish) nisbati nima deyiladi?
A. Yoqilg‘i-energetika sarfi
C. Yoqilg‘i-energetika qiymati
B. Yoqilg‘i-energetika balansi
D. Yoqilg‘i sarfi
10. Hisoblashlarda 1 kg shartli yoqilg’i qancha elektr energiyaga teng deb qabul qilingan?
A. 1 kVt/s
C. 2 kVt/s
B. 1,5 kVt/s
D. 2,5 kVt/s
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