What type of noise will be caused by a piston slap?
A. A sharp, metallic rapping noise that occurs with the engine idling.
B. A hollow, bell-like noise that is most often occurring during cold engine warmup
C. A light, rapping noise at speeds above 35 mph.
D. A heavy thumping knock when the engine is first started
Answer: B
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Los topes de vapor:
a. son barreras de vapor. b. se utilizan en aislamiento de calor. c. se utilizan para controlar el ingreso de humedad en caso de que se rompa la barrera de vapor. d. se utilizan para detener el flujo de agua.
Los cableados exteriores para circuitos de alarmas contra incendios que se extienden fuera de un edificio son regulados por:
a. la OSHA. b. el NEC®. c. el DOT. d. el ANSI.
The heat input is nearest:
Assume air with constant specific heats. The Otto cycle with r = 8
A) 723 kJ/kg
B) 687 kJ/kg
C) 574 kJ/kg
D) 522 kJ/kg
What is true about bad weather and driving conditions?
a. The road is more slippery when the rain continues than when rain begins. b. Driving conditions became more dangerous when temperature arises above freezing. c. When the temperature drops, the bridges freeze before the road.